{"id":1887,"date":"2025-09-28T05:39:06","date_gmt":"2025-09-28T05:39:06","guid":{"rendered":"https:\/\/cnkuangya.com\/?p=1887"},"modified":"2026-04-24T16:15:59","modified_gmt":"2026-04-24T08:15:59","slug":"low-voltage-distribution-protection-2025","status":"publish","type":"post","link":"https:\/\/cnkuangya.com\/ja\/blog\/low-voltage-distribution-protection-2025\/","title":{"rendered":"\u4f4e\u96fb\u5727\u4fdd\u8b77\u30ac\u30a4\u30c9 2025"},"content":{"rendered":"<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-1cdfebf\" data-block-id=\"1cdfebf\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-1cdfebf-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-e115ceb\" data-v=\"4\" data-block-id=\"e115ceb\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-e115ceb-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-e115ceb-inner-blocks\">\n<!-- ===== SEC 01 \u2014 Overview & Executive Summary (Kuangya Blog, inline CSS, with internal links) ===== -->\n<section id=\"sec01-overview\" aria-label=\"\u6982\u8981\u3068\u30a8\u30b0\u30bc\u30af\u30c6\u30a3\u30d6\u30fb\u30b5\u30de\u30ea\u30fc\">\n  <style>\n    \/* ===== Scoped Inline CSS for Kuangya Blog (Section 01) ===== *\/\n    #sec01-overview{\n      --brand:#B5220E; --accent:#FD5732; --text:#111827; --muted:#4B5563;\n      --bg:#ffffff; --card:#F9FAFB; --border:#E5E7EB; --ink:#0f172a;\n    }\n    #sec01-overview{padding:56px 16px;background:var(--bg)}\n    #sec01-overview .wrap{max-width:1120px;margin:0 auto}\n    \/* Head *\/\n    #sec01-overview .eyebrow{display:inline-block;font:700 12px\/1 ui-sans-serif,system-ui,-apple-system,\"Segoe UI\",Arial;color:#fff;background:var(--brand);padding:6px 10px;border-radius:999px;letter-spacing:.3px;text-transform:uppercase}\n    #sec01-overview h1{margin:10px 0 6px;font:800 30px\/1.2 ui-sans-serif,system-ui,-apple-system,\"Segoe UI\",Arial;color:var(--ink)}\n    #sec01-overview .sub{margin:0 0 14px;color:var(--muted)}\n    \/* Cards *\/\n    #sec01-overview .card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:18px;margin:12px 0}\n    #sec01-overview .note{background:#fff7ed;border:1px solid #fed7aa}\n    \/* Lists *\/\n    #sec01-overview ul{margin:0 0 12px 18px}\n    #sec01-overview li{margin:6px 0}\n    #sec01-overview a{color:#B5220E;text-decoration:underline}\n    #sec01-overview .muted{color:var(--muted)}\n  <\/style>\n\n  <div class=\"wrap\">\n    <span class=\"eyebrow\">\u7b2c01\u7bc0<\/span>\n    <h1>\u4f4e\u96fb\u5727\u914d\u96fb\u4fdd\u8b77\uff082025\uff09\uff1a\u898f\u683c\u306b\u6cbf\u3063\u305f\u968e\u5c64\u7684\u624b\u6cd5<\/h1>\n    <p class=\"sub\"><strong>\u65e5\u4ed8<\/strong> 2025\u5e749\u670828\u65e5 <strong>\u51fa\u7248\u793e<\/strong> \u30af\u30a2\u30f3\u30cb\u30e3\u30d6\u30ed\u30b0<\/p>\n\n    <!-- Legal & Safety -->\n    <div class=\"card note\">\n      <p><strong>\u514d\u8cac\u4e8b\u9805<\/strong> \u672c\u8a18\u4e8b\u306f\u60c5\u5831\u63d0\u4f9b\u306e\u307f\u3092\u76ee\u7684\u3068\u3057\u305f\u3082\u306e\u3067\u3042\u308a\u3001\u5c02\u9580\u7684\u306a\u6280\u8853\u7684\u30a2\u30c9\u30d0\u30a4\u30b9\u3092\u63d0\u4f9b\u3059\u308b\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3059\u3079\u3066\u306e\u8a2d\u8a08\u306f\u3001\u5b9f\u884c\u524d\u306b\u3001\u9069\u7528\u3055\u308c\u308b\u898f\u7bc4\u304a\u3088\u3073\u57fa\u6e96\u306b\u5f93\u3063\u3066\u3001\u514d\u8a31\u3092\u6301\u3064\u30d7\u30ed\u306e\u30a8\u30f3\u30b8\u30cb\u30a2\u306b\u3088\u3063\u3066\u691c\u8a0e\u3055\u308c\u3001\u627f\u8a8d\u3055\u308c\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002.<\/p>\n      <p class=\"muted\"><strong>\u5b89\u5168\u3060\uff1a<\/strong> \u96fb\u6c17\u7cfb\u7d71\u306e\u4f5c\u696d\u306f\u3059\u3079\u3066\u3001\u53b3\u683c\u306a\u30ed\u30c3\u30af\u30a2\u30a6\u30c8\u30fb\u30bf\u30b0\u30a2\u30a6\u30c8\uff08LOTO\uff09\u624b\u9806\u306b\u5f93\u3063\u3066\u3001\u6709\u8cc7\u683c\u8005\u304c\u884c\u308f\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002\u5b9f\u4f5c\u696d\u306b\u95a2\u3059\u308b\u6307\u793a\u306f\u3042\u308a\u307e\u305b\u3093\u3002.<\/p>\n    <\/div>\n\n    <!-- Executive Summary with INTERNAL LINKS -->\n    <div class=\"card\">\n      <h2 style=\"margin:0 0 8px;font:800 22px\/1.3 ui-sans-serif,system-ui,-apple-system,'Segoe UI',Arial;color:var(--ink)\">\u30a8\u30b0\u30bc\u30af\u30c6\u30a3\u30d6\u30fb\u30b5\u30de\u30ea\u30fc<\/h2>\n      <p>\u6700\u65b0\u306e\u8a2d\u5099\u3001\u7279\u306bVFD\u3001PV\/ESS\u3001EV\u30c1\u30e3\u30fc\u30b8\u30e3\u30fc\u3092\u5099\u3048\u305f\u8a2d\u5099\u306b\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u8981\u4ef6\u304c\u3042\u308a\u307e\u3059\u3002 <strong>\u30ec\u30a4\u30e4\u30fc\u30c9\u30d7\u30ed\u30c6\u30af\u30b7\u30e7\u30f3<\/strong> \u8abf\u6574\u6226\u7565 <strong>MCB\/MCCB<\/strong> (\u904e\u96fb\u6d41\uff09\u3001, <a href=\"https:\/\/cnkuangya.com\/ja\/rccb\/\">RCCB<\/a>\/<a href=\"https:\/\/cnkuangya.com\/ja\/rcbo\/\">\u30a2\u30fc\u30eb\u30b7\u30fc\u30dc<\/a> (\u30b7\u30e7\u30c3\u30af\uff0f\u30d5\u30a1\u30a4\u30e4\u30fc\uff09\u3001, <a href=\"https:\/\/cnkuangya.com\/ja\/afdd\/\">\u30a8\u30fc\u30a8\u30d5\u30c7\u30a3\u30fc<\/a> (\u30a2\u30fc\u30af\u30d5\u30a9\u30eb\u30c8\uff09\u3001\u305d\u3057\u3066 <a href=\"https:\/\/cnkuangya.com\/ja\/ac-spd\/\">AC SPD<\/a> \/ <a href=\"https:\/\/cnkuangya.com\/ja\/%e7%9b%b4%e6%b5%81%e5%9b%9e%e8%bb%a2%e6%95%b0\/\">DC SPD<\/a> (\u30b5\u30fc\u30b8\uff09\u3002\u3053\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u306b\u3088\u308a\u3001AC\u304a\u3088\u3073DC\u30b7\u30b9\u30c6\u30e0\u306e\u73fe\u884c\u898f\u683c\u306b\u9069\u5408\u3057\u306a\u304c\u3089\u3001\u8ff7\u60d1\u306a\u30c8\u30ea\u30c3\u30d7\u3084\u6b7b\u89d2\u3092\u6e1b\u3089\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002.<\/p>\n      <ul>\n        <li><strong>\u904e\u96fb\u6d41\uff1a<\/strong> MCB\/MCCB\/\u30d2\u30e5\u30fc\u30ba\u3067\u51e6\u7406\u3057\u3001\u30ab\u30fc\u30d6B\/C\/D\u3068\u9069\u5207\u306aI<em>CU<\/em>\/I<em>cs<\/em>. .\u306eDC\u30d7\u30ed\u30c6\u30af\u30b7\u30e7\u30f3\u3092\u53c2\u7167\u306e\u3053\u3068\u3002 <a href=\"https:\/\/cnkuangya.com\/ja\/dc-fuse\/\">DC\u30d2\u30e5\u30fc\u30ba<\/a>.<\/li>\n        <li><strong>\u6b8b\u7559\u96fb\u6d41\uff08\u885d\u6483\/\u706b\u707d\uff09\uff1a<\/strong> \u62c5\u5f53 <a href=\"https:\/\/cnkuangya.com\/ja\/rccb\/\">RCCB<\/a>\/<a href=\"https:\/\/cnkuangya.com\/ja\/rcbo\/\">\u30a2\u30fc\u30eb\u30b7\u30fc\u30dc<\/a>; \u8ca0\u8377\u6ce2\u5f62\u306b\u3088\u3063\u3066\u30bf\u30a4\u30d7A\/F\/B\u3092\u9078\u629e\u3059\u308b\uff08\u4f8b\uff1aVFD\/EV\u306f\u30bf\u30a4\u30d7B\u304c\u5fc5\u8981\u306a\u5834\u5408\u304c\u591a\u3044\uff09\u3002.<\/li>\n        <li><strong>\u30a2\u30fc\u30af\u30d5\u30a9\u30eb\u30c8\uff1a<\/strong> \u306b\u3088\u3063\u3066\u8efd\u6e1b\u3055\u308c\u308b\u3002 <a href=\"https:\/\/cnkuangya.com\/ja\/afdd\/\">\u30a8\u30fc\u30a8\u30d5\u30c7\u30a3\u30fc<\/a> (\u6700\u7d42\u56de\u8def\u7528MCB\/RCBO\u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u304c\u591a\u3044\uff09\u3002.<\/li>\n        <li><strong>\u30b5\u30fc\u30b8\uff1a<\/strong> \u9650\u5b9a <a href=\"https:\/\/cnkuangya.com\/ja\/ac-spd\/\">SPD\u30bf\u30a4\u30d71\/2\/3\uff08AC\uff09<\/a> \u305d\u3057\u3066 <a href=\"https:\/\/cnkuangya.com\/ja\/%e7%9b%b4%e6%b5%81%e5%9b%9e%e8%bb%a2%e6%95%b0\/\">DC SPD<\/a> for PV\/ESS\/EV; PV string protection &#038; housing see <a href=\"https:\/\/cnkuangya.com\/ja\/pv-combiner-box\/\">PV\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u30dc\u30c3\u30af\u30b9<\/a>.<\/li>\n      <\/ul>\n\n      <!-- External references: exactly ONE dofollow (IEC), all others nofollow -->\n      <p class=\"muted\">\n        \u53c2\u8003\u6587\u732e\n        <a href=\"https:\/\/www.iec.ch\/\" target=\"_blank\" rel=\"noopener\">IEC\uff0860364\u30b7\u30ea\u30fc\u30ba\u3001\u88fd\u54c1\u304a\u3088\u3073\u8a2d\u7f6e\u898f\u683c\uff09<\/a><!-- dofollow -->\n        - <a href=\"https:\/\/webstore.iec.ch\/\" target=\"_blank\" rel=\"nofollow noopener\">IEC\u30a6\u30a7\u30d6\u30b9\u30c8\u30a2<\/a>\n        - <a href=\"https:\/\/www.nfpa.org\/codes-and-standards\" target=\"_blank\" rel=\"nofollow noopener\">NEC (NFPA)<\/a>\n        - <a href=\"https:\/\/www.ul.com\/\" target=\"_blank\" rel=\"nofollow noopener\">UL\u898f\u683c<\/a>\n      <\/p>\n    <\/div>\n\n  <\/div>\n<\/section>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-588d12d\" data-block-id=\"588d12d\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-588d12d-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-4d73f4a\" data-v=\"4\" data-block-id=\"4d73f4a\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-4d73f4a-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-4d73f4a-inner-blocks\">\n<!-- ===== SEC 02 \u2014 Terminology & Device Roles (Kuangya Blog, inline CSS) ===== -->\n<section id=\"sec02-roles\" aria-label=\"\u7528\u8a9e\u3068\u30c7\u30d0\u30a4\u30b9\u306e\u5f79\u5272\">\n  <style>\n    \/* ===== Scoped Inline CSS (Section 02) ===== *\/\n    #sec02-roles{\n      --brand:#B5220E; --accent:#FD5732; --text:#111827; --muted:#4B5563;\n      --bg:#ffffff; --card:#F9FAFB; --border:#E5E7EB; --ink:#0f172a;\n    }\n    #sec02-roles{padding:56px 16px;background:var(--bg)}\n    #sec02-roles .wrap{max-width:1120px;margin:0 auto}\n    \/* Head *\/\n    #sec02-roles .eyebrow{display:inline-block;font:700 12px\/1 ui-sans-serif,system-ui,-apple-system,\"Segoe UI\",Arial;color:#fff;background:var(--brand);padding:6px 10px;border-radius:999px;letter-spacing:.3px;text-transform:uppercase}\n    #sec02-roles h2{margin:10px 0 6px;font:800 26px\/1.25 ui-sans-serif,system-ui,-apple-system,\"Segoe UI\",Arial;color:var(--ink)}\n    #sec02-roles p.sub{margin:0 0 14px;color:var(--muted)}\n    \/* Table *\/\n    #sec02-roles .table-wrap{overflow:auto;border:1px solid var(--border);border-radius:12px;background:#fff;margin:12px 0}\n    #sec02-roles table{width:100%;border-collapse:separate;border-spacing:0;min-width:980px}\n    #sec02-roles thead th{position:sticky;top:0;background:#fff;border-bottom:1px solid var(--border);padding:12px 14px;text-align:left;font:700 12px\/1.2 ui-sans-serif,system-ui,-apple-system,\"Segoe UI\",Arial;color:var(--ink)}\n    #sec02-roles tbody td{padding:12px 14px;border-bottom:1px solid var(--border);vertical-align:top;font:400 13px\/1.55 ui-sans-serif,system-ui,-apple-system,\"Segoe UI\",Arial;color:var(--text)}\n    #sec02-roles tbody tr:nth-child(odd) td{background:#fcfcfd}\n    #sec02-roles .k{font-weight:700}\n    #sec02-roles a{color:#B5220E;text-decoration:underline}\n    \/* Callout *\/\n    #sec02-roles .note{background:#fff7ed;border:1px solid #fed7aa;border-radius:12px;padding:12px;margin-top:10px}\n    #sec02-roles .muted{color:var(--muted)}\n  <\/style>\n\n  <div class=\"wrap\">\n    <span class=\"eyebrow\">\u30bb\u30af\u30b7\u30e7\u30f302<\/span>\n    <h2>\u7528\u8a9e\u3068\u30c7\u30d0\u30a4\u30b9\u306e\u5f79\u5272<\/h2>\n    <p class=\"sub\">MCB\/MCCB\u3001RCD\u30d5\u30a1\u30df\u30ea\u30fc\uff08RCCB\/RCBO\uff09\u3001AFDD\u3001SPD\u306e\u5f79\u5272\u5206\u62c5\u3092\u660e\u78ba\u306b\u3002\u9069\u5207\u306a\u8105\u5a01\u30ab\u30c6\u30b4\u30ea\u30fc\u306b\u9069\u5207\u306a\u30c7\u30d0\u30a4\u30b9\u3092\u9078\u629e\u3002.<\/p>\n\n    <div class=\"table-wrap\" role=\"region\" aria-label=\"\u4fdd\u8b77\u88c5\u7f6e\u306e\u5f79\u5272\u30de\u30c8\u30ea\u30c3\u30af\u30b9\">\n      <table>\n        <thead>\n          <tr>\n            <th>\u88c5\u7f6e<\/th>\n            <th>\u4e3b\u8981\u6a5f\u80fd<\/th>\n            <th>\u8efd\u6e1b\u3055\u308c\u305f\u8105\u5a01<\/th>\n            <th>\u4ee3\u8868\u7684\u306a\u5834\u6240<\/th>\n            <th>\u4e3b\u8981\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc<\/th>\n            <th>\u30b9\u30bf\u30f3\u30c0\u30fc\u30c9\uff082025\u5e74\uff09<\/th>\n          <\/tr>\n        <\/thead>\n        <tbody>\n          <tr>\n            <td><span class=\"k\">MCB \/ MCCB<\/span><\/td>\n            <td>\u904e\u96fb\u6d41\u4fdd\u8b77\uff08\u904e\u8ca0\u8377\u304a\u3088\u3073\u77ed\u7d61\uff09<\/td>\n            <td>\u71b1\u640d\u50b7\u3001\u5c0e\u4f53\u7d76\u7e01\u4e0d\u826f<\/td>\n            <td>\u30b5\u30fc\u30d3\u30b9\u30fb\u30a8\u30f3\u30c8\u30e9\u30f3\u30b9\uff0fMSB\u3001\u30b5\u30d6\u914d\u96fb\u3001\u6700\u7d42\u56de\u8def<\/td>\n            <td>\u30c8\u30ea\u30c3\u30d7\u30ab\u30fc\u30d6 <b>B\/C\/D<\/b>; I<sub>\u3046<\/sub> \/ I<sub>CU<\/sub> \/ I<sub>cs<\/sub>; \u6e29\u5ea6\u30c7\u30a3\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0<\/td>\n            <td>iec 60898-1 (mcb); iec 60947-2 (mccb)<\/td>\n          <\/tr>\n          <tr>\n            <td><a href=\"https:\/\/cnkuangya.com\/ja\/rccb\/\">RCCB<\/a><\/td>\n            <td>\u6b8b\u7559\u96fb\u6d41\u4fdd\u8b77\uff08\u904e\u96fb\u6d41\u306a\u3057\uff09<\/td>\n            <td>\u611f\u96fb\uff0f\u6f0f\u96fb\u706b\u707d<\/td>\n            <td>\u30b5\u30d6DB\/\u30d5\u30a1\u30a4\u30ca\u30eb\u56de\u8def\u306b\u304a\u3051\u308b\u30a2\u30c3\u30d7\u30b9\u30c8\u30ea\u30fc\u30e0\u30fb\u30b0\u30eb\u30fc\u30d7\u30fb\u30d7\u30ed\u30c6\u30af\u30b7\u30e7\u30f3<\/td>\n            <td>I<sub>dn<\/sub> (10\/30\/100\/300 mA); \u30bf\u30a4\u30d7 <b>AC\/A\/F\/B<\/b>; \u30bf\u30a4\u30d7S\uff08\u9078\u629e\u5f0f\uff09<\/td>\n            <td>IEC 61008-1; IEC 62423 (\u30bf\u30a4\u30d7F\/B)<\/td>\n          <\/tr>\n          <tr>\n            <td><a href=\"https:\/\/cnkuangya.com\/ja\/rcbo\/\">\u30a2\u30fc\u30eb\u30b7\u30fc\u30dc<\/a><\/td>\n            <td>\u8907\u5408\u6b8b\u7559\u96fb\u6d41\uff0b\u904e\u96fb\u6d41<\/td>\n            <td>\u885d\u6483\uff0b\u904e\u8ca0\u8377\uff0f\u7aef\u5b50\u77ed\u7d61<\/td>\n            <td>\u6700\u7d42\u56de\u8def\uff08MCB\uff0bRCCB\u306b\u4ee3\u308f\u308b\u3082\u306e\uff09<\/td>\n            <td>\u3067\u3001\u79c1\u306f<sub>dn<\/sub> \u2264 30 mA; \u30ab\u30fc\u30d6B\/C\/D; \u30bf\u30a4\u30d7A\/F\/B<\/td>\n            <td>IEC 61009-1; IEC 62423 (\u30bf\u30a4\u30d7F\/B)<\/td>\n          <\/tr>\n          <tr>\n            <td><a href=\"https:\/\/cnkuangya.com\/ja\/afdd\/\">\u30a8\u30fc\u30a8\u30d5\u30c7\u30a3\u30fc<\/a><\/td>\n            <td>\u30a2\u30fc\u30af\u30d5\u30a9\u30eb\u30c8\u691c\u51fa\uff06\u30c8\u30ea\u30c3\u30d7<\/td>\n            <td>\u76f4\u5217\/\u4e26\u5217\u30a2\u30fc\u30af\u30d5\u30a9\u30eb\u30c8\uff08\u706b\u707d\uff09<\/td>\n            <td>\u706b\u707d\u30ea\u30b9\u30af\u306e\u9ad8\u3044\u6700\u7d42\u56de\u8def\u3067\u3001\u591a\u304f\u306e\u5834\u5408MCB\/RCBO\u3068\u5bfe\u306b\u306a\u308b<\/td>\n            <td>\u691c\u51fa\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3001\u30ce\u30a4\u30ba\u8010\u6027\u3001\u81ea\u5df1\u30c6\u30b9\u30c8\/\u8868\u793a<\/td>\n            <td>iec 62606; ul 1699 (afci, na)<\/td>\n          <\/tr>\n          <tr>\n            <td><a href=\"https:\/\/cnkuangya.com\/ja\/ac-spd\/\">SPD\uff08AC\uff09<\/a><\/td>\n            <td>AC\u30b7\u30b9\u30c6\u30e0\u306e\u30af\u30e9\u30f3\u30d7\u30fb\u30b5\u30fc\u30b8<\/td>\n            <td>\u96f7\u30fb\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u30b5\u30fc\u30b8<\/td>\n            <td>\u30bf\u30a4\u30d71\/1+2\uff1a\u30b5\u30fc\u30d3\u30b9\u30fb\u30a8\u30f3\u30c8\u30e9\u30f3\u30b9\u3001\u30bf\u30a4\u30d72\uff1a\u30b5\u30d6DB\u3001\u30bf\u30a4\u30d73\uff1a\u30dd\u30a4\u30f3\u30c8\u30fb\u30aa\u30d6\u30fb\u30e6\u30fc\u30b9<\/td>\n            <td>U<sub>c<\/sub>; U<sub>p<\/sub>; I<sub>n<\/sub>\/I<sub>\u30de\u30c3\u30af\u30b9<\/sub> (8\/20); I<sub>\u5c0f\u60aa\u9b54<\/sub> (10\/350); SCCR; \u30b3\u30fc\u30c7\u30a3\u30cd\u30fc\u30b7\u30e7\u30f3<\/td>\n            <td>IEC 61643-11 (AC)<\/td>\n          <\/tr>\n          <tr>\n            <td><a href=\"https:\/\/cnkuangya.com\/ja\/%e7%9b%b4%e6%b5%81%e5%9b%9e%e8%bb%a2%e6%95%b0\/\">SPD (PV\/DC)<\/a><\/td>\n            <td>PV\/ESS\/EV\u76f4\u6d41\u56de\u8def\u306e\u30af\u30e9\u30f3\u30d7\u30b5\u30fc\u30b8<\/td>\n            <td>\u76f4\u6d41\u904e\u6e21\u96fb\u5727<\/td>\n            <td>PV\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u3001ESS DC\u30d0\u30b9\u3001DC\u5145\u96fb\u5668\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9<\/td>\n            <td>U<sub>\u30b7\u30fc\u30d4\u30fc\u30d6\u30a4<\/sub>\/U<sub>c<\/sub>; U<sub>p<\/sub>; I<sub>n<\/sub>\/I<sub>\u30de\u30c3\u30af\u30b9<\/sub>; \u6975\u6027\u3001\u30a2\u30fc\u30b9\u65b9\u5f0f<\/td>\n            <td>iec 61643-31 (pv\/dc)<\/td>\n          <\/tr>\n        <\/tbody>\n      <\/table>\n    <\/div>\n\n    <div class=\"note\">\n      <p><strong>\u30c7\u30b6\u30a4\u30f3\u306e\u30d2\u30f3\u30c8\uff1a<\/strong> \u6a5f\u80fd\u7684\u306a\u91cd\u8907\u3092\u60f3\u5b9a\u3057\u3066\u306f\u306a\u3089\u306a\u3044<em>MCB\/MCCB\u304c\u6f0f\u96fb\u3092\u691c\u77e5\u3057\u306a\u3044<\/em>; <em>\u6f0f\u96fb\u906e\u65ad\u5668\u306f\u30b5\u30fc\u30b8\u3092\u5236\u9650\u3057\u306a\u3044<\/em>. .\u5404\u30c7\u30d0\u30a4\u30b9\u3092\u7279\u5b9a\u306e\u8105\u5a01\u306b\u4f7f\u7528\u3057\u3001\u30ec\u30a4\u30e4\u30fc\u9593\u3067\u8a2d\u5b9a\u3084\u9078\u629e\u6027\u3092\u8abf\u6574\u3059\u308b\u3002.<\/p>\n      <p class=\"muted\">RCCB\/RCBO\u306e\u4e3b\u8981\u88fd\u54c1\u898f\u683c\u306f2024\u5e74\u306b\u66f4\u65b0\u3055\u308c\u3001AC SPD\u306e\u65b0\u7248\u306f2025\u5e74\u306b\u4e88\u5b9a\u3055\u308c\u3066\u3044\u308b\u3002.<\/p>\n    <\/div>\n\n    <!-- References: exactly one dofollow (IEC); others nofollow -->\n    <p class=\"muted\">\n      \u53c2\u8003\u6587\u732e\n      <a href=\"https:\/\/www.iec.ch\/\" target=\"_blank\" rel=\"noopener\">\u56fd\u969b\u96fb\u6c17\u6a19\u6e96\u4f1a\u8b70<\/a>\n      - <a href=\"https:\/\/www.nfpa.org\/codes-and-standards\" target=\"_blank\" rel=\"nofollow noopener\">NEC (NFPA)<\/a>\n      - <a href=\"https:\/\/www.ul.com\/\" target=\"_blank\" rel=\"nofollow noopener\">UL\u898f\u683c<\/a>\n    <\/p>\n  <\/div>\n<\/section>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-a0915c3\" data-block-id=\"a0915c3\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-a0915c3-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-713fd61\" data-v=\"4\" data-block-id=\"713fd61\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-713fd61-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-713fd61-inner-blocks\">\n<!-- ===== SEC 03 \u2014 Layered Protection Architecture (AC) ===== -->\n<section id=\"sec03-arch-ac\" aria-label=\"\u30ec\u30a4\u30e4\u30fc\u30c9\u30fb\u30d7\u30ed\u30c6\u30af\u30b7\u30e7\u30f3\u30fb\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3 - AC\">\n  <style>\n    \/* SEO-first: semantic H2\/H3 + lightweight inline CSS, no placeholders *\/\n    #sec03-arch-ac{padding:40px 16px;background:#fff;color:#111827}\n    #sec03-arch-ac .wrap{max-width:1120px;margin:0 auto}\n    #sec03-arch-ac h2{font:800 26px\/1.25 ui-sans-serif,system-ui,-apple-system,\"Segoe UI\",Arial;margin:0 0 12px}\n    #sec03-arch-ac h3{font:700 18px\/1.35 ui-sans-serif,system-ui,-apple-system,\"Segoe UI\",Arial;margin:20px 0 8px}\n    #sec03-arch-ac p{margin:0 0 12px}\n    #sec03-arch-ac ul{margin:0 0 12px 20px}\n    #sec03-arch-ac li{margin:6px 0}\n    #sec03-arch-ac a{color:#B5220E;text-decoration:underline}\n    \/* smaller visual for long image *\/\n    #sec03-arch-ac .img-graph{display:block;width:100%;max-width:720px;margin:10px auto;border-radius:8px}\n  <\/style>\n\n  <div class=\"wrap\">\n    <h2>\u30ec\u30a4\u30e4\u30fc\u30c9\u30fb\u30d7\u30ed\u30c6\u30af\u30b7\u30e7\u30f3\u30fb\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3 - AC<\/h2>\n    <p>\u30b3\u30fc\u30c7\u30a3\u30cd\u30fc\u30c8 <a href=\"https:\/\/cnkuangya.com\/ja\/ac-spd\/\">AC SPD<\/a>, <a href=\"https:\/\/cnkuangya.com\/ja\/rccb\/\">RCCB<\/a>\/<a href=\"https:\/\/cnkuangya.com\/ja\/rcbo\/\">\u30a2\u30fc\u30eb\u30b7\u30fc\u30dc<\/a>\u305d\u3057\u3066 <a href=\"https:\/\/cnkuangya.com\/ja\/afdd\/\">\u30a8\u30fc\u30a8\u30d5\u30c7\u30a3\u30fc<\/a> \u4f4e\u96fb\u5727\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3051\u308b\u5b89\u5168\u6027\u3068\u9078\u629e\u6027\u3092\u9054\u6210\u3059\u308b\u305f\u3081\u306b\u30013\u3064\u306e\u30ec\u30a4\u30e4\u30fc\u306b\u307e\u305f\u304c\u3063\u3066\u3044\u308b\u3002.<\/p>\n\n    <!-- Mermaid #1 replaced with image (smaller rendering) -->\n    <a href=\"https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/mermaid1-scaled.jpeg\" target=\"_blank\" rel=\"noopener\">\n      <img class=\"img-graph\" src=\"https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/mermaid1-scaled.jpeg\" alt=\"AC\u30ec\u30a4\u30e4\u30fc\u30ef\u30f3\u30e9\u30a4\u30f3\uff1a\u30ec\u30a4\u30e41\u306f\u30bf\u30a4\u30d71\/1+2 SPD\u3068MCCB\u3001\u30ec\u30a4\u30e42\u306f\u30bf\u30a4\u30d72 SPD\u3068\u9078\u629e\u5f0fRCCB\u3001\u30ec\u30a4\u30e43\u306fRCBO 30mA\u3001AFDD+MCB\u3001VFD\u5206\u5c90\u306f\u30bf\u30a4\u30d7B RCD\" loading=\"lazy\" decoding=\"async\">\n    <\/a>\n\n    <h3>\u30ec\u30a4\u30e4\u30fc1 - \u30b5\u30fc\u30d3\u30b9\u30fb\u30a8\u30f3\u30c8\u30e9\u30f3\u30b9 \/ MDB<\/h3>\n    <ul>\n      <li><strong>\u30c7\u30d0\u30a4\u30b9<\/strong> MCCB\u306f\u3001\u60f3\u5b9a\u3055\u308c\u308b\u6545\u969c\u30ec\u30d9\u30eb\uff08I<em>CU<\/em>\/I<em>cs<\/em>), <a href=\"https:\/\/cnkuangya.com\/ja\/ac-spd\/\">\u30bf\u30a4\u30d71\u307e\u305f\u306f1+2 SPD<\/a>; \u30aa\u30d7\u30b7\u30e7\u30f3 100-300 mA <strong>\u30bf\u30a4\u30d7S<\/strong> \u9632\u706b\u7528RCCB\u304c\u8a31\u53ef\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u3002.<\/li>\n      <li><strong>\u5b9f\u8df5\u3057\u3066\u3044\u308b\uff1a<\/strong> SPD\u306e\u30ea\u30fc\u30c9\u7dda\u3092\u77ed\u304f\u5e73\u884c\u306b\u4fdd\u3061\u3001SCCR\u3068\u30d0\u30c3\u30af\u30a2\u30c3\u30d7OCPD\u3092\u78ba\u8a8d\u3059\u308b\u3002.<\/li>\n    <\/ul>\n\n    <h3>\u30ec\u30a4\u30e42 - \u30b5\u30d6\u30e1\u30a4\u30f3\u30c7\u30a3\u30b9\u30c8\u30ea\u30d3\u30e5\u30fc\u30b7\u30e7\u30f3\uff08SMDB\uff09<\/h3>\n    <ul>\n      <li><strong>\u30c7\u30d0\u30a4\u30b9<\/strong> \u30d5\u30a3\u30fc\u30c0\u30fc MCB\/MCCB \u30be\u30fc\u30cb\u30f3\u30b0\uff1b; <a href=\"https:\/\/cnkuangya.com\/ja\/ac-spd\/\">\u30bf\u30a4\u30d72 SPD<\/a> \u6b8b\u5dee\u3092\u30af\u30e9\u30f3\u30d7\u3059\u308b\u3002\u30b3\u30fc\u30c9\u3067\u8981\u6c42\u3055\u308c\u308b\u5834\u5408\u306f\u3001RCCB\uff08\u591a\u304f\u306e\u5834\u5408\u9078\u629e\u7684\uff09\u3092\u30b0\u30eb\u30fc\u30d7\u5316\u3059\u308b\u3002.<\/li>\n      <li><strong>\u5b9f\u8df5\u3057\u3066\u3044\u308b\uff1a<\/strong> \u9577\u3044\u30d5\u30a3\u30fc\u30c0\u30fc\u3092\u30bb\u30b0\u30e1\u30f3\u30c8\u5316\u3057\u3001\u30ec\u30a4\u30e4\u30fc3\u3067\u6f0f\u96fb\u906e\u65ad\u5668\u306e\u6642\u9593\/\u30bf\u30a4\u30d7\u9078\u629e\u6027\u3092\u7dad\u6301\u3059\u308b\u3002.<\/li>\n    <\/ul>\n\n    <h3>\u30ec\u30a4\u30e4\u30fc3 - \u6700\u7d42\u56de\u8def \/ \u30dd\u30a4\u30f3\u30c8\u30fb\u30aa\u30d6\u30fb\u30e6\u30fc\u30b9<\/h3>\n    <ul>\n      <li><strong>\u30c7\u30d0\u30a4\u30b9<\/strong> <a href=\"https:\/\/cnkuangya.com\/ja\/rcbo\/\">\u30a2\u30fc\u30eb\u30b7\u30fc\u30dc<\/a> \u2264 \u8ffd\u52a0\u306e\u885d\u6483\u4fdd\u8b77\u752830 mA\u4ee5\u4e0b\u3001\u307e\u305f\u306f <a href=\"https:\/\/cnkuangya.com\/ja\/afdd\/\">\u30a8\u30fc\u30a8\u30d5\u30c7\u30a3\u30fc<\/a> + \u706b\u707d\u30ea\u30b9\u30af\u306e\u3042\u308b\u56de\u8def\u306bMCB\u3092\u8ffd\u52a0\u3059\u308b\uff1b; <a href=\"https:\/\/cnkuangya.com\/ja\/ac-spd\/\">\u30bf\u30a4\u30d73 SPD<\/a> \u8d70\u884c\u6642\u9593\u304c\u9577\u3044\u5834\u5408\u3001\u7e4a\u7d30\u306a\u8ca0\u8377\u306b\u8fd1\u3044\u3002.<\/li>\n      <li><strong>\u8ca0\u8377\u5225\u306e\u6f0f\u96fb\u906e\u65ad\u5668\u30bf\u30a4\u30d7<\/strong> <em>\u30bf\u30a4\u30d7A<\/em> (\u4e00\u822c\u7684\u306a\u5358\u76f8\u96fb\u5b50\u6a5f\u5668\uff09\u3001, <em>\u30bf\u30a4\u30d7F<\/em> (\u5358\u76f8\u30b3\u30f3\u30d0\u30fc\u30bf\uff09\u3001, <em>\u30bf\u30a4\u30d7B<\/em> (\u4e09\u76f8VFD \/ EV \/ PV\uff09\u3002.<\/li>\n    <\/ul>\n\n    <p><strong>\u53c2\u8003\u6587\u732e<\/strong>\n      <a href=\"https:\/\/www.iec.ch\/\" target=\"_blank\" rel=\"noopener\">\u56fd\u969b\u96fb\u6c17\u6a19\u6e96\u4f1a\u8b70<\/a>\n      - <a href=\"https:\/\/www.nfpa.org\/codes-and-standards\" target=\"_blank\" rel=\"nofollow noopener\">NEC (NFPA)<\/a>\n      - <a href=\"https:\/\/www.ul.com\/\" target=\"_blank\" rel=\"nofollow noopener\">UL\u898f\u683c<\/a>\n    <\/p>\n  <\/div>\n<\/section>\n\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-8a41821\" data-block-id=\"8a41821\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-8a41821-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-ad5533b\" data-v=\"4\" data-block-id=\"ad5533b\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-ad5533b-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-ad5533b-inner-blocks\">\n<!-- ===== SEC 04 \u2014 Layered Protection Architecture (DC: PV \/ ESS \/ EV) \u2014 updated: single external link only ===== -->\n<section id=\"sec04-arch-dc\" aria-label=\"\u30ec\u30a4\u30e4\u30fc\u30c9\u30fb\u30d7\u30ed\u30c6\u30af\u30b7\u30e7\u30f3\u30fb\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3 - DC (PV \/ ESS \/ EV)\">\n  <style>\n    \/* SEO-first: semantic H2\/H3 + lightweight inline CSS *\/\n    #sec04-arch-dc{padding:40px 16px;background:#fff;color:#111827}\n    #sec04-arch-dc .wrap{max-width:1120px;margin:0 auto}\n    #sec04-arch-dc h2{font:800 26px\/1.25 ui-sans-serif,system-ui,-apple-system,\"Segoe UI\",Arial;margin:0 0 12px}\n    #sec04-arch-dc h3{font:700 18px\/1.35 ui-sans-serif,system-ui,-apple-system,\"Segoe UI\",Arial;margin:20px 0 8px}\n    #sec04-arch-dc p{margin:0 0 12px}\n    #sec04-arch-dc ul{margin:0 0 12px 20px}\n    #sec04-arch-dc li{margin:6px 0}\n    #sec04-arch-dc a{color:#B5220E;text-decoration:underline}\n    \/* smaller visual for long image *\/\n    #sec04-arch-dc .img-graph{display:block;width:100%;max-width:720px;margin:10px auto;border-radius:8px}\n    #sec04-arch-dc .note{background:#fff7ed;border:1px solid #fed7aa;border-radius:10px;padding:12px;margin:14px 0}\n  <\/style>\n\n  <div class=\"wrap\">\n    <h2>\u30ec\u30a4\u30e4\u30fc\u30c9\u30fb\u30d7\u30ed\u30c6\u30af\u30b7\u30e7\u30f3\u30fb\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3 - DC (PV \/ ESS \/ EV)<\/h2>\n    <p>\u76f4\u6d41\u5b9a\u683c\u306e\u4fdd\u8b77\u88c5\u7f6e\u3068 <a href=\"https:\/\/cnkuangya.com\/ja\/%e7%9b%b4%e6%b5%81%e5%9b%9e%e8%bb%a2%e6%95%b0\/\">DC SPD<\/a> \u5404\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9(\u30a2\u30ec\u30a4\u3001DC\u30d0\u30b9\/ESS\u3001\u30a4\u30f3\u30d0\u30fc\u30bf\/\u5145\u96fb\u5668)\u3067\u306e\u6b63\u3057\u3044\u6975\u6027\u3001\u77ed\u3044\u30ea\u30fc\u30c9\u7dda\u3001\u4e00\u8cab\u3057\u305f\u7b49\u96fb\u4f4d\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u7dad\u6301\u3059\u308b\u3002\u4e3b\u306a\u898f\u683c\u53c2\u7167\uff1a <a href=\"https:\/\/www.iec.ch\/\" target=\"_blank\" rel=\"noopener\">\u56fd\u969b\u96fb\u6c17\u6a19\u6e96\u4f1a\u8b70<\/a>.<\/p>\n\n    <!-- Mermaid #2 \u2192 Image #2 (compressed display) -->\n    <a href=\"https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/mermaid2.jpeg\" target=\"_blank\" rel=\"noopener\">\n      <img class=\"img-graph\" src=\"https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/mermaid2.jpeg\"\n           alt=\"DC\u30ec\u30a4\u30e4\u30fc\u30ef\u30f3\u30e9\u30a4\u30f3\uff1aPV\u30e2\u30b8\u30e5\u30fc\u30eb\u304b\u3089\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\uff08PV\u30d2\u30e5\u30fc\u30ba\u304a\u3088\u3073\u30bf\u30a4\u30d71+2\/\u30bf\u30a4\u30d72 DC SPD\u4ed8\u304d\uff09\u3001DC\u30a2\u30a4\u30bd\u30ec\u30fc\u30bf\u30fc\u3001ESS DC\u30d0\u30b9\uff08\u30bf\u30a4\u30d72 DC SPD\u4ed8\u304d\uff09\u3001\u30a4\u30f3\u30d0\u30fc\u30bf\u30fc\u307e\u305f\u306fDC EV\u30c1\u30e3\u30fc\u30b8\u30e3\u30fc\u304b\u3089AC\u30b7\u30b9\u30c6\u30e0\/EV\u3078\"\n           loading=\"lazy\" decoding=\"async\">\n    <\/a>\n\n    <h3>PV\u30a2\u30ec\u30a4\uff06\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc<\/h3>\n    <ul>\n      <li>\u306b\u30b9\u30c8\u30ea\u30f3\u30b0\u4fdd\u8b77\uff08PV\u30d2\u30e5\u30fc\u30ba\uff09\u3092\u8a2d\u3051\u308b\u3002 <a href=\"https:\/\/cnkuangya.com\/ja\/pv-combiner-box\/\">PV\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u30dc\u30c3\u30af\u30b9<\/a>; \u30b9\u30c8\u30ea\u30f3\u30b0\u306eIsc\u3068\u5c0e\u4f53\u5b9a\u683c\u3092\u78ba\u8a8d\u3059\u308b\u3002.<\/li>\n      <li>\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb <strong>\u30bf\u30a4\u30d71+2 DC SPD<\/strong> \u305d\u308c\u4ee5\u5916\u306e\u5834\u5408 <strong>\u30bf\u30a4\u30d72 DC SPD<\/strong> \u3092\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u307e\u305f\u306f\u30a2\u30ec\u30a4\u306e\u63a5\u7d9a\u70b9\u3067\u4f7f\u7528\u3059\u308b\u3002.<\/li>\n    <\/ul>\n\n    <h3>DC\u7d76\u7e01\u3068\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0<\/h3>\n    <ul>\n      <li>\u30a2\u30ec\u30a4\/\u30a4\u30f3\u30d0\u30fc\u30bf\u306e\u8fd1\u304f\u306bDC\u30a2\u30a4\u30bd\u30ec\u30fc\u30bf\u3092\u8a2d\u7f6e\u3059\u308b\u3002\u30b7\u30b9\u30c6\u30e0\u96fb\u5727\u3067DC\u30a2\u30fc\u30af\u906e\u65ad\u304c\u5b9f\u8a3c\u3055\u308c\u3066\u3044\u308b\u30d6\u30ec\u30fc\u30ab\/\u30b3\u30f3\u30bf\u30af\u30bf\u3092\u4f7f\u7528\u3059\u308b\u3002.<\/li>\n      <li>\u8ca0\u8377\u304c\u304b\u304b\u3063\u305f\u72b6\u614b\u3067\u306e\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u306b\u3064\u3044\u3066\u306f\u3001\u88fd\u9020\u5143\u306e\u5236\u9650\u3092\u5b88\u3063\u3066\u304f\u3060\u3055\u3044\u3002.<\/li>\n    <\/ul>\n\n    <h3>ESS DC\u30d0\u30b9<\/h3>\n    <ul>\n      <li>\u30d0\u30c3\u30c6\u30ea\u30fc\/DC\u30d0\u30b9\u30fb\u30a8\u30f3\u30c8\u30ea\u30fc\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u3082\u306e\u3092\u53d6\u308a\u4ed8 \u3051\u307e\u3059\u3002 <strong>\u30bf\u30a4\u30d72 DC SPD<\/strong> \u4e0a\u6d41\u306e\u4fdd\u8b77\u304a\u3088\u3073\u30b7\u30b9\u30c6\u30e0SCCR\u3068\u5354\u8abf\u3059\u308b\u3002.<\/li>\n      <li>SPD\u306e\u30ea\u30fc\u30c9\u7dda\u306fPE\u3068\u5e73\u884c\u306b\u77ed\u304f\u4fdd\u3061\u3001\u30e1\u30a4\u30f3\u306e\u7b49\u96fb\u4f4d\u30ce\u30fc\u30c9\u306b\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0\u3059\u308b\u3002.<\/li>\n    <\/ul>\n\n    <h3>\u30a4\u30f3\u30d0\u30fc\u30bf\u30fc\/DC EV\u5145\u96fb\u5668\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9<\/h3>\n    <ul>\n      <li>\u30d1\u30ef\u30fc\u30a8\u30ec\u30af\u30c8\u30ed\u30cb\u30af\u30b9\u306b\u6b8b\u7559\u3059\u308b\u30b5\u30fc\u30b8\u96fb\u5727\u3092\u5236\u9650\u3059\u308b\u305f\u3081\u306b\u3001DC SPD\u3092\u30a4\u30f3\u30d0\u30fc\u30bf\/\u30c1\u30e3\u30fc\u30b8\u30e3\u30fc\u306eDC\u5165\u529b\u306e\u8fd1\u304f\u306b\u914d\u7f6e\u3059\u308b\u3002.<\/li>\n      <li>EV\u30b7\u30b9\u30c6\u30e0\u306e\u5834\u5408\u3001DC\u5074\u306b\u9069\u5207\u306aAC\u5074\u4fdd\u8b77\uff08\u4f8b\uff1a\u5730\u57df\u30b3\u30fc\u30c9\u3067\u8981\u6c42\u3055\u308c\u308b\u6f0f\u96fb\u906e\u65ad\u5668\u30bf\u30a4\u30d7B\/RDC-DD\uff09\u3092\u7d44\u307f\u5408\u308f\u305b\u307e\u3059\u3002.<\/li>\n    <\/ul>\n\n    <div class=\"note\">\n      <p><strong>\u30b3\u30fc\u30c7\u30a3\u30cd\u30fc\u30c8\u306e\u30d2\u30f3\u30c8<\/strong> \u901a\u96fb\u524d\u306b\u3001SPD\u30b9\u30c6\u30fc\u30b8\u9593\u306e\u8ddd\u96e2\/\u30c7\u30ab\u30c3\u30d7\u30ea\u30f3\u30b0\u3001\u30b1\u30fc\u30d6\u30eb\u9577\u3092\u8a18\u9332\u3057\u3001\u6975\u6027\u304a\u3088\u3073\u63a5\u5730\u30b9\u30ad\u30fc\u30e0\uff08TN\/TT\/IT\uff09\u3092\u78ba\u8a8d\u3059\u308b\u3002.<\/p>\n    <\/div>\n  <\/div>\n<\/section>\n\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-6382b3f\" data-block-id=\"6382b3f\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-6382b3f-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-40f1b50\" data-v=\"4\" data-block-id=\"40f1b50\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-40f1b50-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-40f1b50-inner-blocks\">\n<!-- ===== SEC 05 \u2014 Protection Selection Workflow ===== -->\n<section id=\"sec05-selection\" aria-label=\"\u30d7\u30ed\u30c6\u30af\u30b7\u30e7\u30f3\u9078\u629e\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\">\n  <style>\n    \/* SEO-first: semantic H2\/H3 + lightweight inline CSS *\/\n    #sec05-selection{padding:40px 16px;background:#fff;color:#111827}\n    #sec05-selection .wrap{max-width:1120px;margin:0 auto}\n    #sec05-selection h2{font:800 26px\/1.25 ui-sans-serif,system-ui,-apple-system,\"Segoe UI\",Arial;margin:0 0 12px}\n    #sec05-selection h3{font:700 18px\/1.35 ui-sans-serif,system-ui,-apple-system,\"Segoe UI\",Arial;margin:20px 0 8px}\n    #sec05-selection p{margin:0 0 12px}\n    #sec05-selection ul{margin:0 0 12px 20px}\n    #sec05-selection li{margin:6px 0}\n    #sec05-selection a{color:#B5220E;text-decoration:underline}\n    \/* smaller visual for long image *\/\n    #sec05-selection .img-graph{display:block;width:100%;max-width:720px;margin:10px auto;border-radius:8px}\n  <\/style>\n\n  <div class=\"wrap\">\n    <h2>\u30d7\u30ed\u30c6\u30af\u30b7\u30e7\u30f3\u9078\u629e\u30ef\u30fc\u30af\u30d5\u30ed\u30fc<\/h2>\n    <p>\u3053\u306e\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u306b\u5f93\u3063\u3066\u30b5\u30a4\u30ba\u3092\u6c7a\u3081\u308b <a href=\"https:\/\/cnkuangya.com\/ja\/rccb\/\">\u6f0f\u96fb\u906e\u65ad\u5668<\/a>, <a href=\"https:\/\/cnkuangya.com\/ja\/rcbo\/\">\u30a2\u30fc\u30eb\u30b7\u30fc\u30dc<\/a>, <a href=\"https:\/\/cnkuangya.com\/ja\/afdd\/\">\u30a8\u30fc\u30a8\u30d5\u30c7\u30a3\u30fc<\/a>, \u304a\u3088\u3073AC\/DC\u30b7\u30b9\u30c6\u30e0\u7528\u306e\u904e\u96fb\u6d41\/SPD\u30c7\u30d0\u30a4\u30b9\u3067\u3059\u3002\u9078\u629e\u6027\u3068\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u3092\u7dad\u6301\u3059\u308b\u305f\u3081\u306b\u3001\u30ef\u30f3\u30e9\u30a4\u30f3\u3068\u4e00\u7dd2\u306b\u304a\u4f7f\u3044\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n    <!-- Mermaid #3 \u2192 Image #3 (smaller rendering) -->\n    <a href=\"https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/mermeid3-scaled.jpeg\" target=\"_blank\" rel=\"noopener\">\n      <img class=\"img-graph\" src=\"https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/mermeid3-scaled.jpeg\"\n           alt=\"\u6c7a\u5b9a\u306e\u6d41\u308cAC\/DC\u5206\u5c90\u2192\u904e\u96fb\u6d41\u30b5\u30a4\u30b8\u30f3\u30b0\u2192\u6f0f\u96fb\u906e\u65ad\u5668\u30bf\u30a4\u30d7A\/F\/B\u306b\u3088\u308b\u885d\u6483\/\u706b\u707d\u4fdd\u8b77\u2192AFDD\u306e\u5fc5\u8981\u6027\u2192SPD\u30bf\u30a4\u30d7\u306e\u9078\u629e\u3068\u6700\u7d42\u4ed5\u69d8\"\n           loading=\"lazy\" decoding=\"async\">\n    <\/a>\n\n    <h3>\u904e\u96fb\u6d41\u30b5\u30a4\u30b8\u30f3\u30b0\uff08MCB\/MCCB\/\u30d2\u30e5\u30fc\u30ba\uff09<\/h3>\n    <ul>\n      <li>\u898b\u8fbc\u307f\u77ed\u7d61\u96fb\u6d41\u3092\u8a08\u7b97\u3057\u3001\u9069\u5207\u306a I<em>CU<\/em>\/I<em>cs<\/em> (\u307e\u305f\u306f\u30d2\u30e5\u30fc\u30ba\u906e\u65ad\u5bb9\u91cf\uff09\u3002.<\/li>\n      <li>\u30c8\u30ea\u30c3\u30d7\u30ab\u30fc\u30d6\u306e\u9078\u629e <strong>B\/C\/D<\/strong> \u5c0e\u4f53\u306e\u6e29\u5ea6\u9650\u754c\u3068\u6e29\u5ea6\u30c7\u30a3\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u78ba\u8a8d\u3059\u308b\u3002.<\/li>\n    <\/ul>\n\n    <h3>\u6b8b\u7559\u96fb\u6d41\u4fdd\u8b77\uff08\u885d\u6483\/\u706b\u707d\uff09<\/h3>\n    <ul>\n      <li><strong>\u8ffd\u52a0\u306e\u885d\u6483\u4fdd\u8b77\uff1a<\/strong> \u226430mA\u4ee5\u4e0b <a href=\"https:\/\/cnkuangya.com\/ja\/rcbo\/\">\u30a2\u30fc\u30eb\u30b7\u30fc\u30dc<\/a> \u307e\u305f\u306f <a href=\"https:\/\/cnkuangya.com\/ja\/rccb\/\">RCCB<\/a>+MCB\u3002<\/li>\n      <li><strong>\u6ce2\u5f62\u306b\u3088\u308b\u30bf\u30a4\u30d7\u9078\u629e\uff1a<\/strong> \u30bf\u30a4\u30d7 <strong>A<\/strong> (\u4e00\u822c\u5358\u76f8\u96fb\u5b50\u6a5f\u5668\uff09\u3001\u30bf\u30a4\u30d7 <strong>F<\/strong> (\u5358\u76f8\u30b3\u30f3\u30d0\u30fc\u30bf\/SMPS\uff09\u3001\u30bf\u30a4\u30d7 <strong>B<\/strong> (3\u76f8VFD\/EV\/PV\u30a4\u30f3\u30d0\u30fc\u30bf)\u3002<\/li>\n      <li><strong>\u706b\u707d\/\u30d0\u30c3\u30af\u30a2\u30c3\u30d7<\/strong> \u9078\u629e\u7684 (<em>\u30bf\u30a4\u30d7S<\/em>) \u6642\u9593\u9078\u629e\u6027\u3092\u4fdd\u3064\u305f\u3081\u306b\u8a31\u5bb9\u3055\u308c\u308b\u5834\u5408\u306f\u3001\u4e0a\u6d41\u5074\u306b100-300 mA\u3092\u6d41\u3059\u3002.<\/li>\n    <\/ul>\n\n    <h3>\u30a2\u30fc\u30af\u30d5\u30a9\u30eb\u30c8\u8efd\u6e1b\uff08AFDD\uff09<\/h3>\n    <ul>\n      <li>\u7528\u9014 <a href=\"https:\/\/cnkuangya.com\/ja\/afdd\/\">\u30a8\u30fc\u30a8\u30d5\u30c7\u30a3\u30fc<\/a> \u5371\u967a\u6027\u306e\u9ad8\u3044\u6700\u7d42\u56de\u8def\uff08\u5c31\u5bdd\u5834\u6240\u3001\u8001\u673d\u5316\u3057\u305f\u914d\u7dda\u3001\u53ef\u71c3\u6027\u306e\u74b0\u5883\uff09 - MCB\u3068\u7d44\u307f\u5408\u308f\u305b\u305f\u308a\u3001RCBO\u306b\u7d44\u307f\u8fbc\u3093\u3060\u308a\u3059\u308b\u3053\u3068\u304c\u591a\u3044\u3002.<\/li>\n    <\/ul>\n\n    <h3>\u30b5\u30fc\u30b8\u4fdd\u8b77\u8a08\u753b<\/h3>\n    <ul>\n      <li>\u96f7\/\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u306e\u30ea\u30b9\u30af\u3092\u8a55\u4fa1\u3059\u308b\uff1a\u30bf\u30a4\u30d7 <strong>1\/1+2<\/strong> \u30b5\u30fc\u30d3\u30b9\u3001\u30bf\u30a4\u30d7 <strong>2<\/strong> \u30b5\u30d6\u30c7\u30a3\u30b9\u30c8\u30ea\u30d3\u30e5\u30fc\u30b7\u30e7\u30f3\u3067\u3001\u30bf\u30a4\u30d7 <strong>3<\/strong> \u654f\u611f\u306a\u8ca0\u8377\u306e\u8fd1\u304f(<a href=\"https:\/\/cnkuangya.com\/ja\/ac-spd\/\">AC SPD<\/a>).<\/li>\n      <li>PV\/ESS\/EV\u306e\u5834\u5408\u306f <a href=\"https:\/\/cnkuangya.com\/ja\/%e7%9b%b4%e6%b5%81%e5%9b%9e%e8%bb%a2%e6%95%b0\/\">DC SPD<\/a> U<sub>\u30b7\u30fc\u30d4\u30fc\u30d6\u30a4<\/sub>\/U<sub>c<\/sub>, U<sub>p<\/sub>, \u30ea\u30fc\u30c9\u7dda\u306f\u77ed\u304f\u3001\u63a5\u7740\u3057\u3066\u304a\u304f\u3053\u3068\u3002.<\/li>\n    <\/ul>\n\n    <h3>Selectivity &#038; Coordination<\/h3>\n    <ul>\n      <li>\u6f0f\u96fb\u906e\u65ad\u5668\u306e\u7b49\u7d1a: \u4e0a\u6d41\u306e\u9078\u629e\u7684\u306a 100-300 mA \u2192\u4e0b\u6d41\u226430 mA; \u6ce2\u5f62\u306b\u3088\u3063\u3066\u30bf\u30a4\u30d7\u3092\u4e00\u81f4\u3055\u305b\u3066\u4e0b\u3055\u3044\u3002.<\/li>\n      <li>MCB\/MCCB: \u30ab\u30b9\u30b1\u30fc\u30c9\/\u9078\u629e\u30c1\u30e3\u30fc\u30c8\u3092\u30e1\u30fc\u30ab\u30fc\u304b\u3089\u5165\u624b\u3057\u3001\u4e0a\u6d41\u30c7\u30d0\u30a4\u30b9\u306e\u8010\u6027\u3092\u78ba\u8a8d\u3059\u308b\u3002.<\/li>\n      <li>SPD\u30b9\u30c6\u30fc\u30b8\uff1a\u30bf\u30a4\u30d72\u3068\u8ca0\u8377\u306e\u9593\u306e\u8ddd\u96e2\uff0f\u30c7\u30ab\u30c3\u30d7\u30ea\u30f3\u30b0\u3092\u7dad\u6301\u3057\u3001\u8d70\u884c\u8ddd\u96e2\u304c\u9577\u3044\u5834\u5408\u306f\u30bf\u30a4\u30d73\u3092\u8ffd\u52a0\u3059\u308b\u3002.<\/li>\n    <\/ul>\n\n    <p><strong>\u4e3b\u8981\u898f\u683c\u306e\u53c2\u7167\uff1a<\/strong> <a href=\"https:\/\/www.iec.ch\/\" target=\"_blank\" rel=\"noopener\">\u56fd\u969b\u96fb\u6c17\u6a19\u6e96\u4f1a\u8b70<\/a>.<\/p>\n  <\/div>\n<\/section>\n\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-935a9e2\" data-block-id=\"935a9e2\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-935a9e2-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-a4baebc\" data-v=\"4\" data-block-id=\"a4baebc\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-a4baebc-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-a4baebc-inner-blocks\">\n<!-- ===== SEC 06 \u2014 Installation & Commissioning Best Practices ===== -->\n<section id=\"sec06-installation\" aria-label=\"\u8a2d\u7f6e\u304a\u3088\u3073\u8a66\u904b\u8ee2\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\">\n  <style>\n    \/* SEO-first: H2\/H3 structure + lightweight inline CSS, no placeholders *\/\n    #sec06-installation{padding:40px 16px;background:#fff;color:#111827}\n    #sec06-installation .wrap{max-width:1120px;margin:0 auto}\n    #sec06-installation h2{font:800 26px\/1.25 ui-sans-serif,system-ui,-apple-system,\"Segoe UI\",Arial;margin:0 0 12px}\n    #sec06-installation h3{font:700 18px\/1.35 ui-sans-serif,system-ui,-apple-system,\"Segoe UI\",Arial;margin:20px 0 8px}\n    #sec06-installation p{margin:0 0 12px}\n    #sec06-installation ul{margin:0 0 12px 20px}\n    #sec06-installation li{margin:6px 0}\n    #sec06-installation a{color:#B5220E;text-decoration:underline}\n    \/* smaller visual for long image *\/\n    #sec06-installation .img-graph{display:block;width:100%;max-width:720px;margin:10px auto;border-radius:8px}\n    #sec06-installation .callout{background:#fff7ed;border:1px solid #fed7aa;border-radius:10px;padding:12px;margin:14px 0}\n  <\/style>\n\n  <div class=\"wrap\">\n    <h2>Installation &#038; Commissioning Best Practices<\/h2>\n    <p>\u3053\u306e\u5b9f\u7528\u7684\u306a\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8\u3092\u4f7f\u7528\u3057\u3066\u3001\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3068\u691c\u8a3c\u3092\u884c\u3046 <a href=\"https:\/\/cnkuangya.com\/ja\/ac-spd\/\">SPD<\/a>, <a href=\"https:\/\/cnkuangya.com\/ja\/rccb\/\">\u6f0f\u96fb\u906e\u65ad\u5668<\/a>\/<a href=\"https:\/\/cnkuangya.com\/ja\/rcbo\/\">RCBO<\/a>\u305d\u3057\u3066 <a href=\"https:\/\/cnkuangya.com\/ja\/afdd\/\">AFDDs<\/a> \u9078\u629e\u6027\u3068\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u3092\u7dad\u6301\u3057\u306a\u304c\u3089\u3002\u6700\u65b0\u306e\u898f\u7bc4\u30ac\u30a4\u30c0\u30f3\u30b9\u306b\u3064\u3044\u3066\u306f <a href=\"https:\/\/www.iec.ch\/\" target=\"_blank\" rel=\"noopener\">\u56fd\u969b\u96fb\u6c17\u6a19\u6e96\u4f1a\u8b70<\/a>.<\/p>\n\n    <!-- Mermaid #4 \u2192 Image #4 (smaller rendering) -->\n    <a href=\"https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/mermaid4.jpeg\" target=\"_blank\" rel=\"noopener\">\n      <img class=\"img-graph\" src=\"https:\/\/cnkuangya.com\/wp-content\/uploads\/2025\/09\/mermaid4.jpeg\"\n           alt=\"\u30ec\u30a4\u30e4\u30fc\u30c9\u30d7\u30ed\u30c6\u30af\u30b7\u30e7\u30f3\u306e\u8a2d\u7f6e\u304a\u3088\u3073\u8a66\u904b\u8ee2\u306b\u95a2\u3059\u308b\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u6982\u8981\u56f3\"\n           loading=\"lazy\" decoding=\"async\">\n    <\/a>\n\n    <h3>Cabling, Bonding &#038; Earthing<\/h3>\n    <ul>\n      <li><strong>\u7b49\u96fb\u4f4d\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0\uff1a<\/strong> \u3059\u3079\u3066\u306e\u91d1\u5c5e\u30b5\u30fc\u30d3\u30b9\u3092\u4e3b\u63a5\u5730\u7aef\u5b50\uff08MET\uff09\u306b\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0\u3059\u308b\u3002\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0\u5c0e\u4f53\u306f\u9023\u7d9a\u3055\u305b\u3001\u9069\u5207\u306a\u30b5\u30a4\u30ba\u306b\u3059\u308b\u3002.<\/li>\n      <li><strong>SPD\u304c\u30ea\u30fc\u30c9\uff1a<\/strong> \u76f8\/\u4e2d\u6027\/PE\u5c0e\u4f53\u3092\u77ed\u304f\u3001\u307e\u3063\u3059\u3050\u306b\u3057\u3066\u3001\u4e00\u7dd2\u306b\u914d\u7dda\u3059\u308b\u3002\u30eb\u30fc\u30d7\u306e\u5168\u9577\u306f0.5m\u4ee5\u4e0b\u304c\u7406\u60f3\u7684\u3002.<\/li>\n      <li><strong>Twisting &#038; loop area:<\/strong> \u76f8\/\u30cb\u30e5\u30fc\u30c8\u30e9\u30eb\u3092\u306d\u3058\u3063\u3066SPD\u3078\u306e\u30eb\u30fc\u30d7\u9762\u7a4d\u3092\u6700\u5c0f\u306b\u3057\u3001\u8a98\u5c0e\u96fb\u5727\u3092\u4e0b\u3052\u308b\u3002.<\/li>\n      <li><strong>\u30a2\u30fc\u30b7\u30f3\u30b0\u30fb\u30b9\u30ad\u30fc\u30e0\uff1a<\/strong> \u8a2d\u7f6e\u524d\u306bTN\/TT\/IT\u30b9\u30ad\u30fc\u30e0\u3092\u691c\u8a3c\u3059\u308b\u3002\u30cf\u30a4\u30d6\u30ea\u30c3\u30c9\u30b7\u30b9\u30c6\u30e0\u3067\u306fAC\u5074\u3068DC\u5074\u3067\u4e00\u8cab\u3057\u305f\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u3092\u7dad\u6301\u3059\u308b\u3002.<\/li>\n    <\/ul>\n\n    <h3>SPD\u30b9\u30c6\u30fc\u30b8\u30f3\u30b0\uff06\u30b3\u30fc\u30c7\u30a3\u30cd\u30fc\u30b7\u30e7\u30f3<\/h3>\n    <ul>\n      <li><strong>\u30b5\u30fc\u30d3\u30b9\u3067\u306f\u30bf\u30a4\u30d71\/1+2\u3001SMDB\u3067\u306f\u30bf\u30a4\u30d72\u3001POS\u3067\u306f\u30bf\u30a4\u30d73\uff1a<\/strong> \u30b9\u30c6\u30fc\u30b8\u306e\u30a8\u30cd\u30eb\u30ae\u30fc\u7b49\u7d1a\u3092\u7dad\u6301\u3059\u308b\u3002.<\/li>\n      <li><strong>\u8ddd\u96e2\uff0f\u30c7\u30ab\u30c3\u30d7\u30ea\u30f3\u30b0\uff1a<\/strong> \u30c7\u30ea\u30b1\u30fc\u30c8\u306a\u6a5f\u5668\u306b\u77ed\u6642\u9593\u63a5\u7d9a\u3059\u308b\u5834\u5408\u306f\u3001\u30bf\u30a4\u30d73\u307e\u305f\u306f\u30c7\u30ab\u30c3\u30d7\u30ea\u30f3\u30b0\u30a4\u30f3\u30c0\u30af\u30bf\u30f3\u30b9\u3092\u8ffd\u52a0\u3057\u3066\u3001\u4e0a\u6d41\u306e\u6a5f\u5668\u306b\u904e\u5927\u306a\u30b9\u30c8\u30ec\u30b9\u3092\u4e0e\u3048\u306a\u3044\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/li>\n      <li><strong>Backup protection &#038; SCCR:<\/strong> \u4e0a\u6d41\u306eOCPD\u304a\u3088\u3073\u77ed\u7d61\u96fb\u6d41\u5b9a\u683c\u306e\u30e1\u30fc\u30ab\u30fc\u8981\u4ef6\u306b\u9069\u5408\u3057\u3066\u3044\u308b\u3053\u3068\u3002.<\/li>\n    <\/ul>\n\n    <h3>RCD Grading &#038; Nuisance Trip Avoidance<\/h3>\n    <ul>\n      <li><strong>\u6642\u9593\u63a1\u70b9\uff1a<\/strong> \u9078\u629e\u7684 (<em>\u30bf\u30a4\u30d7S<\/em>) \u4e0a\u6d41\u5074100-300 mA \u2192 \u4e0b\u6d41\u5074\u226430 mA\u3067\u8ffd\u52a0\u306e\u885d\u6483\u4fdd\u8b77\u3002.<\/li>\n      <li><strong>\u6ce2\u5f62\u3067\u30bf\u30a4\u30d7\u3059\u308b\uff1a<\/strong> <em>\u30bf\u30a4\u30d7A<\/em> (\u4e00\u822c\u5358\u76f8\uff09\u3001, <em>\u30bf\u30a4\u30d7F<\/em> (\u5358\u76f8\u30b3\u30f3\u30d0\u30fc\u30bf\uff09\u3001, <em>\u30bf\u30a4\u30d7B<\/em> (3\u76f8VFD\/EV\/PV\uff09\u3002\u53c2\u7167 <a href=\"https:\/\/cnkuangya.com\/ja\/rcbo\/\">\u30a2\u30fc\u30eb\u30b7\u30fc\u30dc<\/a> \u30bb\u30ec\u30af\u30b7\u30e7\u30f3\u30fb\u30ce\u30fc\u30c8.<\/li>\n      <li><strong>\u30ea\u30fc\u30b1\u30fc\u30b8\u30fb\u30d0\u30b8\u30a7\u30c3\u30c6\u30a3\u30f3\u30b0\uff1a<\/strong> \u30c8\u30ea\u30c3\u30d7\u30ec\u30d9\u30eb\u306b\u30de\u30fc\u30b8\u30f3\u3092\u4fdd\u3064\u305f\u3081\u3001\u4e0b\u6d41\u306e\u6a5f\u5668\u306e\u4e88\u60f3\u6f0f\u96fb\u91cf\u3092\u5408\u8a08\u3059\u308b\u3002\u540c\u3058\u5206\u5c90\u306b\u4e92\u63db\u6027\u306e\u306a\u3044\u30bf\u30a4\u30d7\u306e\u6f0f\u96fb\u906e\u65ad\u5668\u3092\u6df7\u5728\u3055\u305b\u306a\u3044\u3053\u3068\u3002.<\/li>\n    <\/ul>\n\n    <h3>AFDD\u7533\u8acb<\/h3>\n    <ul>\n      <li>\u706b\u707d\u30ea\u30b9\u30af\u306e\u9ad8\u3044\u56de\u8def\uff08\u5c31\u5bdd\u5834\u6240\u3001\u53ef\u71c3\u6027\u306e\u74b0\u5883\u3001\u8001\u673d\u5316\u3057\u305f\u914d\u7dda\u3001\u30dd\u30fc\u30bf\u30d6\u30eb\u8ca0\u8377\u306e\u3042\u308b\u30bd\u30b1\u30c3\u30c8\uff09\u3092\u512a\u5148\u3059\u308b\u3002.<\/li>\n      <li>AFDD+MCB\u307e\u305f\u306fAFDD-RCBO\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u4f7f\u7528\u3059\u308b\u3002\u4e0a\u6d41\u306e\u6f0f\u96fb\u906e\u65ad\u5668\u304a\u3088\u3073MCB\u30c8\u30ea\u30c3\u30d7\u30ab\u30fc\u30d6\u3068\u306e\u9069\u5408\u6027\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3002.<\/li>\n    <\/ul>\n\n    <h3>Labeling &#038; Documentation<\/h3>\n    <ul>\n      <li>\u3059\u3079\u3066\u306e\u4fdd\u8b77\u30c7\u30d0\u30a4\u30b9\u306b\u5b9a\u683c\u3001\u66f2\u7dda\u3001\u611f\u5ea6\u3001\u304a\u3088\u3073\u8a2d\u7f6e\u65e5\u3092\u30e9\u30d9\u30eb\u4ed8\u3051\u3059\u308b\u3002<sub>c<\/sub>\/U<sub>p<\/sub>.<\/li>\n      <li>SPD \u8abf\u6574\u306b\u95a2\u9023\u3059\u308b\u30b1\u30fc\u30d6\u30eb\u9577\u3092\u8a18\u9332\u3057\u3001O&amp;M \u30d1\u30c3\u30b1\u30fc\u30b8\u3068\u3068\u3082\u306b\u8abf\u6574\/\u9078\u629e\u6027\u30c1\u30e3\u30fc\u30c8\u3092\u4fdd\u5b58\u3059\u308b\u3002.<\/li>\n    <\/ul>\n\n    <h3>\u30b3\u30df\u30c3\u30b7\u30e7\u30cb\u30f3\u30b0\u30fb\u30c6\u30b9\u30c8<\/h3>\n    <ul>\n      <li><strong>Continuity &#038; insulation resistance:<\/strong> PE\u306e\u7d99\u7d9a\u6027\u3092\u691c\u8a3c\u3057\u3001IR\u3092\u6e2c\u5b9a\u3057\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u95be\u5024\u3068\u6bd4\u8f03\u3059\u308b\u3002.<\/li>\n      <li><strong>\u30a2\u30fc\u30b9\u30eb\u30fc\u30d7\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\uff0f\u6545\u969c\u96fb\u6d41\uff1a<\/strong> \u9078\u629e\u3057\u305fMCB\/MCCB\u3067\u5207\u65ad\u6642\u9593\u3092\u78ba\u8a8d\u3059\u308b\u3002.<\/li>\n      <li><strong>\u6f0f\u96fb\u906e\u65ad\u5668\u306e\u30c6\u30b9\u30c8<\/strong> \u3059\u3079\u3066\u306e RCD\/RCBO \u30c7\u30d0\u30a4\u30b9\u306e\u30c8\u30ea\u30c3\u30d7\u30bf\u30a4\u30e0\u304a\u3088\u3073\u30c8\u30ea\u30c3\u30d7\u96fb\u6d41\u30c6\u30b9\u30c8\u3002.<\/li>\n      <li><strong>SPD\u30c1\u30a7\u30c3\u30af\uff1a<\/strong> \u30a4\u30f3\u30b8\u30b1\u30fc\u30bf\uff0f\u30d2\u30e5\u30fc\u30ba\u3092\u78ba\u8a8d\u3059\u308b\uff1b\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0\u3068\u30ea\u30fc\u30c9\u7dda\u306e\u9577\u3055\u3092\u78ba\u8a8d\u3059\u308b\uff1b\u30e2\u30c7\u30eb\u3068\u30b9\u30c6\u30fc\u30b8\u3092\u8a18\u9332\u3059\u308b\u3002.<\/li>\n      <li><strong>\u6a5f\u80fd\u30c6\u30b9\u30c8\uff1a<\/strong> \u30ec\u30a4\u30e4\u30fc\u5225\uff08\u30b5\u30fc\u30d3\u30b9\u2192SMDB\u2192\u30d5\u30a1\u30a4\u30ca\u30eb\uff09\u306b\u901a\u96fb\u3057\u3001\u7d50\u679c\u3068\u8a2d\u5b9a\u3092\u8a18\u9332\u3059\u308b\u3002.<\/li>\n    <\/ul>\n\n    <div class=\"callout\">\n      <p><strong>\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9<\/strong> \u6f0f\u96fb\u906e\u65ad\u5668\u306e\u30c8\u30ea\u30c3\u30d7\u6a5f\u80fd\u3001SPD \u30a4\u30f3\u30b8\u30b1\u30fc\u30bf\u3001\u7de0\u3081\u4ed8\u3051\u30c8\u30eb\u30af\u306e\u8a18\u9332\u3001\u9ad8\u96fb\u6d41\u7d99\u624b\u306e\u30b5\u30fc\u30de\u30eb\u30b9\u30ad\u30e3\u30f3\u3092\u5b9a\u671f\u7684\u306b\u70b9\u691c\u3059\u308b\u3002\u6a5f\u5668\u306e\u4ea4\u63db\u5f8c\u306f\u3001\u6587\u66f8\u3092\u66f4\u65b0\u3059\u308b\u3053\u3068\u3002.<\/p>\n    <\/div>\n  <\/div>\n<\/section>\n\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-144560f\" data-block-id=\"144560f\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-144560f-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-351046b\" data-v=\"4\" data-block-id=\"351046b\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-351046b-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-351046b-inner-blocks\">\n<!-- ===== SEC 07 \u2014 RCD Type Selection & Application Rules ===== -->\n<section id=\"sec07-rcd-rules\" aria-label=\"\u6f0f\u96fb\u906e\u65ad\u5668\u306e\u30bf\u30a4\u30d7\u9078\u629e\u3068\u9069\u7528\u898f\u5247\">\n  <style>\n    \/* SEO-first: semantic H2\/H3 + lightweight inline CSS *\/\n    #sec07-rcd-rules{padding:40px 16px;background:#fff;color:#111827}\n    #sec07-rcd-rules .wrap{max-width:1120px;margin:0 auto}\n    #sec07-rcd-rules h2{font:800 26px\/1.25 ui-sans-serif,system-ui,-apple-system,\"Segoe UI\",Arial;margin:0 0 12px}\n    #sec07-rcd-rules h3{font:700 18px\/1.35 ui-sans-serif,system-ui,-apple-system,\"Segoe UI\",Arial;margin:20px 0 8px}\n    #sec07-rcd-rules p{margin:0 0 12px}\n    #sec07-rcd-rules ul{margin:0 0 12px 20px}\n    #sec07-rcd-rules li{margin:6px 0}\n    #sec07-rcd-rules a{color:#B5220E;text-decoration:underline}\n    #sec07-rcd-rules .note{background:#fff7ed;border:1px solid #fed7aa;border-radius:10px;padding:12px;margin:14px 0}\n  <\/style>\n\n  <div class=\"wrap\">\n    <h2>\u6f0f\u96fb\u906e\u65ad\u5668\u306e\u30bf\u30a4\u30d7\u9078\u629e\u3068\u9069\u7528\u898f\u5247<\/h2>\n    <p>\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u6b21\u306e\u3044\u305a\u308c\u304b\u3092\u9078\u629e\u3057\u307e\u3059\u3002 <a href=\"https:\/\/cnkuangya.com\/ja\/rccb\/\">RCCB<\/a> \u305d\u3057\u3066 <a href=\"https:\/\/cnkuangya.com\/ja\/rcbo\/\">\u30a2\u30fc\u30eb\u30b7\u30fc\u30dc<\/a> \u30bf\u30a4\u30d7\uff08A\/F\/B\/S\uff09\u3092\u4f7f\u7528\u3059\u308b\u3002 <a href=\"https:\/\/cnkuangya.com\/ja\/afdd\/\">\u30a8\u30fc\u30a8\u30d5\u30c7\u30a3\u30fc<\/a> \u305d\u3057\u3066 <a href=\"https:\/\/cnkuangya.com\/ja\/ac-spd\/\">AC SPD<\/a> \u9078\u629e\u6027\u3068\u30a2\u30c3\u30d7\u30bf\u30a4\u30e0\u3092\u7dad\u6301\u3057\u306a\u304c\u3089\u3002.<\/p>\n\n    <h3>\u5404\u30bf\u30a4\u30d7\u306e\u6f0f\u96fb\u906e\u65ad\u5668\u306e\u4f7f\u7528\u6642\u671f<\/h3>\n    <ul>\n      <li><strong>\u30bf\u30a4\u30d7AC<\/strong> - \u7d14\u7c8b\u306a\u6b63\u5f26\u6ce2\u4ea4\u6d41\u8ca0\u8377\u5c02\u7528\u3002\u6700\u65b0\u306e\u6df7\u5408\u8ca0\u8377\u8a2d\u5099\u3067\u306f\u307b\u3068\u3093\u3069\u63a8\u5968\u3055\u308c\u306a\u3044\u3002.<\/li>\n      <li><strong>\u30bf\u30a4\u30d7A<\/strong> - \u534a\u6ce2\u6574\u6d41\u306b\u3088\u308b\u5358\u76f8\u96fb\u5b50\u6a5f\u5668\uff1aSMPS\u3001\u96fb\u78c1\u8abf\u7406\u5668\u3001\u591a\u304f\u306e\u30aa\u30d5\u30a3\u30b9\/IT\u8ca0\u8377\u3002.<\/li>\n      <li><strong>\u30bf\u30a4\u30d7F<\/strong> - \u5358\u76f8\u5468\u6ce2\u6570\u30b3\u30f3\u30d0\u30fc\u30bf\uff0f\u30a4\u30f3\u30d0\u30fc\u30bf\u3067\u3001\u5468\u6ce2\u6570\u304c\u6df7\u5728\u3057\u3001\u76f4\u6d41\u6210\u5206\u304c\u9ad8\u3044\u3082\u306e\uff1a\u9ad8\u7d1a\u5bb6\u96fb\u88fd\u54c1\u3001\u30d2\u30fc\u30c8\u30dd\u30f3\u30d7\u3001\u4e00\u90e8\u306eHVAC\u30c9\u30e9\u30a4\u30d6\u3002.<\/li>\n      <li><strong>\u30bf\u30a4\u30d7B<\/strong> - \u4e09\u76f8VFD\u3001PV\u30a4\u30f3\u30d0\u30fc\u30bf\u3001DC\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u4ed8\u304dUPS\u3001\u304a\u3088\u3073 <em>EV\u5145\u96fb\u5668<\/em>. .\u30b9\u30e0\u30fc\u30ba\u306a\u76f4\u6d41\u6f0f\u308c\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u306e\u3042\u308b\u679d\u306b\u4f7f\u7528\u3059\u308b\u3002.<\/li>\n      <li><strong>\u30bf\u30a4\u30d7S\uff08\u9078\u629e\u5f0f\uff09<\/strong> - \u9632\u706b\u7528\u304a\u3088\u3073\u4e0b\u6d41\u306e\u9078\u629e\u6027\u3092\u7dad\u6301\u3059\u308b\u305f\u3081\u306e\u4e0a\u6d41\u6642\u9593\u9045\u5ef6\u88c5\u7f6e\uff08\u901a\u5e38100\uff5e300mA\uff09\u3002.<\/li>\n    <\/ul>\n\n    <h3>\u611f\u5ea6\u3068\u914d\u7f6e<\/h3>\n    <ul>\n      <li><strong>\u8ffd\u52a0\u306e\u885d\u6483\u4fdd\u8b77\uff1a<\/strong> \u3092\u4f7f\u7528\u3059\u308b\u3002 <strong>30 mA<\/strong> \u6700\u7d42\u56de\u8def\uff08\u30bd\u30b1\u30c3\u30c8\u3001\u30a6\u30a7\u30c3\u30c8\u30a8\u30ea\u30a2\u3001\u30dd\u30fc\u30bf\u30d6\u30eb\u8ca0\u8377\uff09\u3002\u512a\u5148\u9806\u4f4d <a href=\"https:\/\/cnkuangya.com\/ja\/rcbo\/\">\u30a2\u30fc\u30eb\u30b7\u30fc\u30dc<\/a> \u4ed6\u306e\u56de\u8def\u3092\u5931\u3046\u3053\u3068\u306a\u304f\u6545\u969c\u3092\u9694\u96e2\u3059\u308b\u3002.<\/li>\n      <li><strong>\u30b0\u30eb\u30fc\u30d7\uff0f\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u30fb\u30d7\u30ed\u30c6\u30af\u30b7\u30e7\u30f3\uff1a<\/strong> \u4e0a\u6d41 100-300 mA <strong>\u30bf\u30a4\u30d7S<\/strong> \u8a31\u53ef\u3055\u308c\u305f\u9632\u706b\u7528\uff1b; <em>\u306a\u304b\u308c<\/em> \u76f4\u63a5\u63a5\u89e6\u306b\u3088\u308b\u4fdd\u8b77\u306f\u3053\u308c\u306b\u983c\u308b\u3057\u304b\u306a\u3044\u3002.<\/li>\n      <li><strong>EV\/PV\/VFD\u5206\u5c90\uff1a<\/strong> \u8a08\u753b <strong>\u30bf\u30a4\u30d7B<\/strong> \u6f0f\u96fb\u906e\u65ad\u5668\u306f\u3001\u5206\u5c90\u5143\u306e\u3067\u304d\u308b\u3060\u3051\u8fd1\u304f\u306b\u8a2d\u7f6e\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/li>\n    <\/ul>\n\n    <h3>\u9078\u629e\u6027\uff08\u6642\u9593\uff06\u30bf\u30a4\u30d7\u5225\u63a1\u70b9\uff09<\/h3>\n    <ul>\n      <li><strong>\u6642\u9593\u3060\uff1a<\/strong> \u4e0a\u6d41\u5074\u9078\u629e\u5f0f (\u30bf\u30a4\u30d7 S) \u2192 \u4e0b\u6d41\u5074\u77ac\u6642 (\u226430 mA)\u3002\u4e0b\u6d41\u304c\u6700\u521d\u306b\u30c8\u30ea\u30c3\u30d7\u3059\u308b\u3088\u3046\u306b\u3001\u7d2f\u7a4d\u9045\u5ef6\u3092\u78ba\u8a8d\u3059\u308b\u3002.<\/li>\n      <li><strong>\u30bf\u30a4\u30d7<\/strong> \u611f\u5ea6\u306e\u9ad8\u3044\u30bf\u30a4\u30d7\u3092\u3001\u8010\u6027\u306e\u9ad8\u3044\u4e0b\u6d41\u306e\u30bf\u30a4\u30d7\u306e\u4e0a\u6d41\u306b\u914d\u7f6e\u3059\u308b\u3053\u3068\u306f\u907f\u3051\u308b\u3053\u3068\uff08\u4f8b\u3048\u3070\u3001VFD\u30e9\u30a4\u30f3\u3067\u306f\u30bf\u30a4\u30d7A\u306e\u4e0a\u6d41\u306b\u30bf\u30a4\u30d7B\u3092\u914d\u7f6e\u3059\u308b\uff09\u3002.<\/li>\n      <li><strong>MCB\/MCCB\u3068\u306e\u8abf\u6574\uff1a<\/strong> \u30ab\u30b9\u30b1\u30fc\u30c9\u4fdd\u8b77\u306b\u3064\u3044\u3066\u306f\u3001\u30e1\u30fc\u30ab\u30fc\u306e\u9078\u629e\u6027\u30c6\u30fc\u30d6\u30eb\u3092\u78ba\u8a8d\u3059\u308b\u3002.<\/li>\n    <\/ul>\n\n    <h3>\u30c8\u30ea\u30c3\u30d7\u5236\u5fa1<\/h3>\n    <ul>\n      <li><strong>\u30ea\u30fc\u30b1\u30fc\u30b8\u30fb\u30d0\u30b8\u30a7\u30c3\u30c6\u30a3\u30f3\u30b0\uff1a<\/strong> \u4e0b\u6d41\u30c7\u30d0\u30a4\u30b9\u306e\u6b63\u5e38\u306a\u30ea\u30fc\u30af\u3092\u63a8\u5b9a\u3057\u3001\u30c8\u30ea\u30c3\u30d7\u30fb\u30ec\u30d9\u30eb\u306b\u30de\u30fc\u30b8\u30f3\u3092\u4fdd\u3064\uff08\u7d4c\u9a13\u5247\u3067\u306f\u3001I<sub>\u0394n<\/sub> \u901a\u5e38\u904b\u8ee2\u6642\uff09\u3002.<\/li>\n      <li><strong>EMI\u3068\u9ad8\u8abf\u6ce2\uff1a<\/strong> \u30c8\u30ea\u30c3\u30d7\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u3001\u8907\u6570\u306eRCBO\u306b\u5206\u5272\u3059\u308b\u3002.<\/li>\n      <li><strong>\u30cb\u30e5\u30fc\u30c8\u30e9\u30eb\u306a\u3082\u306e\u3092\u5171\u6709\u3059\u308b\uff1a<\/strong> \u7570\u306a\u308b\u6f0f\u96fb\u906e\u65ad\u5668\u306e\u56de\u8def\u9593\u3067\u30cb\u30e5\u30fc\u30c8\u30e9\u30eb\u3092\u5171\u6709\u305b\u305a\u3001\u540c\u3058\u6f0f\u96fb\u906e\u65ad\u5668\u3092\u901a\u3057\u3066\u6b63\u78ba\u306a\u56de\u8def\u306e\u30cb\u30e5\u30fc\u30c8\u30e9\u30eb\u3092\u623b\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/li>\n    <\/ul>\n\n    <h3>\u30b7\u30b9\u30c6\u30e0\u63a5\u5730\u306b\u95a2\u3059\u308b\u7279\u8a18\u4e8b\u9805<\/h3>\n    <ul>\n      <li><strong>TN\u30b7\u30b9\u30c6\u30e0\uff1a<\/strong> \u8ca0\u8377\u7279\u6027\u306b\u5fdc\u3058\u305f\u901a\u5e38\u306e\u6f0f\u96fb\u906e\u65ad\u5668\u306e\u4f7f\u7528\uff1b\u7b49\u96fb\u4f4d\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0\u304c\u884c\u308f\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u3002.<\/li>\n      <li><strong>TT\u30b7\u30b9\u30c6\u30e0\uff1a<\/strong> \u6f0f\u96fb\u906e\u65ad\u5668\u306f\u4e3b\u8981\u306a\u906e\u65ad\u624b\u6bb5\u3067\u3042\u308a\u3001\u906e\u65ad\u6642\u9593\u3092\u6e80\u305f\u3059\u305f\u3081\u306b\u63a5\u5730\u96fb\u6975\u306e\u62b5\u6297\u3092\u78ba\u8a8d\u3059\u308b\u3002.<\/li>\n      <li><strong>IT\u30b7\u30b9\u30c6\u30e0\uff1a<\/strong> \u7d76\u7e01\u76e3\u8996\u3092\u4f7f\u7528\u3057\u30012 \u56de\u76ee\u306e\u6545\u969c\u306b\u5bfe\u3059\u308b\u5fdc\u7b54\u3092\u5b9a\u7fa9\u3059\u308b\u3002.<\/li>\n    <\/ul>\n\n    <div class=\"note\">\n      <p><strong>\u4e3b\u8981\u306a\u57fa\u6e96\u6587\u732e\uff1a<\/strong> \u898b\u308b <a href=\"https:\/\/www.iec.ch\/\" target=\"_blank\" rel=\"noopener\">\u56fd\u969b\u96fb\u6c17\u6a19\u6e96\u4f1a\u8b70<\/a>. .\u5e38\u306b\u6700\u65b0\u7248\u3068\u7279\u5b9a\u306e\u30c7\u30d0\u30a4\u30b9\u306e\u88fd\u54c1\u30c7\u30fc\u30bf\u30b7\u30fc\u30c8\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n    <\/div>\n  <\/div>\n<\/section>\n\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-5f116de\" data-block-id=\"5f116de\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-5f116de-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-08ea379\" data-v=\"4\" data-block-id=\"08ea379\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-08ea379-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-08ea379-inner-blocks\">\n<!-- ===== SEC 08 \u2014 Standards & Documentation Package (Submittals) ===== -->\n<section id=\"sec08-submittals\" aria-label=\"\u898f\u683c\uff06\u30c9\u30ad\u30e5\u30e1\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u30fb\u30d1\u30c3\u30b1\u30fc\u30b8\">\n  <style>\n    \/* SEO-first: H2\/H3 structure + lightweight inline CSS *\/\n    #sec08-submittals{padding:40px 16px;background:#fff;color:#111827}\n    #sec08-submittals .wrap{max-width:1120px;margin:0 auto}\n    #sec08-submittals h2{font:800 26px\/1.25 ui-sans-serif,system-ui,-apple-system,\"Segoe UI\",Arial;margin:0 0 12px}\n    #sec08-submittals h3{font:700 18px\/1.35 ui-sans-serif,system-ui,-apple-system,\"Segoe UI\",Arial;margin:20px 0 8px}\n    #sec08-submittals p{margin:0 0 12px}\n    #sec08-submittals ul{margin:0 0 12px 20px}\n    #sec08-submittals li{margin:6px 0}\n    #sec08-submittals a{color:#B5220E;text-decoration:underline}\n    #sec08-submittals .callout{background:#fff7ed;border:1px solid #fed7aa;border-radius:10px;padding:12px;margin:14px 0}\n  <\/style>\n\n  <div class=\"wrap\">\n    <h2>\u898f\u683c\u30fb\u66f8\u985e\u4e00\u5f0f\uff08\u63d0\u51fa\u66f8\u985e\uff09<\/h2>\n    <p>\u8a2d\u8a08\u5be9\u67fb\u3001\u5efa\u8a2d\u3001\u5f15\u304d\u6e21\u3057\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u5b8c\u5168\u306a\u30d1\u30c3\u30b1\u30fc\u30b8\u3092\u6e96\u5099\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u3092\u6539\u5584\u3057\u3001\u4ee5\u4e0b\u3092\u4f7f\u7528\u3059\u308b\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u627f\u8a8d\u3092\u30b9\u30d4\u30fc\u30c9\u30a2\u30c3\u30d7\u3057\u307e\u3059\u3002 <a href=\"https:\/\/cnkuangya.com\/ja\/rcbo\/\">\u30a2\u30fc\u30eb\u30b7\u30fc\u30dc<\/a>, <a href=\"https:\/\/cnkuangya.com\/ja\/rccb\/\">RCCB<\/a>, <a href=\"https:\/\/cnkuangya.com\/ja\/afdd\/\">\u30a8\u30fc\u30a8\u30d5\u30c7\u30a3\u30fc<\/a>, <a href=\"https:\/\/cnkuangya.com\/ja\/ac-spd\/\">AC SPD<\/a>\u305d\u3057\u3066 <a href=\"https:\/\/cnkuangya.com\/ja\/%e7%9b%b4%e6%b5%81%e5%9b%9e%e8%bb%a2%e6%95%b0\/\">DC SPD<\/a>. .\u4e3b\u8981\u306a\u898f\u7bc4\u7684\u51fa\u5178\uff1a <a href=\"https:\/\/www.iec.ch\/\" target=\"_blank\" rel=\"noopener\">\u56fd\u969b\u96fb\u6c17\u6a19\u6e96\u4f1a\u8b70<\/a>.<\/p>\n\n    <h3>1) \u9069\u7528\u898f\u683c\u30ea\u30b9\u30c8<\/h3>\n    <ul>\n      <li>\u8a2d\u7f6e\u898f\u5247\uff1aIEC 60364 \u30b7\u30ea\u30fc\u30ba\uff08\u8a72\u5f53\u3059\u308b\u5730\u57df\u306e\u63a1\u7528\uff09\u3002.<\/li>\n      <li>\u88fd\u54c1\u898f\u683cMCCB\uff08IEC 60898-1\uff09\u3001MCCB\uff08IEC 60947-2\uff09\u3001RCCB\uff08IEC 61008-1\uff09\u3001RCB\uff08IEC 61009-1\uff09\u3001AFDD\uff08IEC 62606\uff09\u3001AC SPD\uff08IEC 61643-11\uff09\u3001PV\/DC SPD\uff08IEC 61643-31\uff09\u3002.<\/li>\n      <li>\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u7279\u6709\u306e\u5730\u57df\u6539\u6b63\u307e\u305f\u306f\u516c\u76ca\u4e8b\u696d\u8981\u4ef6\uff08\u8a31\u53ef\u3055\u308c\u308b\u5834\u5408\u306f\u629c\u7c8b\u3092\u6dfb\u4ed8\u3059\u308b\u3053\u3068\uff09\u3002.<\/li>\n    <\/ul>\n\n    <h3>2) \u8a2d\u8a08\u8a08\u7b97<\/h3>\n    <ul>\n      <li><strong>\u969c\u5bb3\u30ec\u30d9\u30eb\u3068\u4fdd\u8b77\u30b5\u30a4\u30b8\u30f3\u30b0\uff1a<\/strong> \u898b\u8fbc\u307f\u77ed\u7d61\u96fb\u6d41; MCB\/MCCB I<em>CU<\/em>\/I<em>cs<\/em> \u9078\u629e\uff1b\u30d2\u30e5\u30fc\u30ba\u906e\u65ad\u5bb9\u91cf\u3002.<\/li>\n      <li><strong>\u6f0f\u96fb\u906e\u65ad\u5668\u306e\u9078\u629e\uff1a<\/strong> \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\uff08\u8ffd\u52a0\u885d\u6483\u226630 mA vs. \u9078\u629e\u7684100-300 mA\uff09\u3001\u6ce2\u5f62\u306b\u3088\u308b\u30bf\u30a4\u30d7\uff08A\/F\/B\uff09\u3001\u30ea\u30fc\u30b1\u30fc\u30b8\u30d0\u30b8\u30a7\u30c3\u30c6\u30a3\u30f3\u30b0\u3002.<\/li>\n      <li><strong>SPD\u306e\u8abf\u6574\uff1a<\/strong> \u30b5\u30fc\u30d3\u30b9\u6642\u306e\u30bf\u30a4\u30d71\/1+2\u3001SMDB\u6642\u306e\u30bf\u30a4\u30d72\u3001\u9ad8\u611f\u5ea6\u8ca0\u8377\u4ed8\u8fd1\u306e\u30bf\u30a4\u30d73\uff1bU<sub>c<\/sub>, U<sub>p<\/sub>, In\/Imax\uff08\u304a\u3088\u3073I<sub>\u5c0f\u60aa\u9b54<\/sub> \u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u306eOCPD\/SCCR\u30c1\u30a7\u30c3\u30af\u3002.<\/li>\n      <li><strong>\u71b1\u3068\u30b1\u30fc\u30d6\u30eb\u306e\u30c1\u30a7\u30c3\u30af<\/strong> \u5c0e\u4f53\u306e\u30b5\u30a4\u30ba\/\u5b9a\u683c\u3001\u96fb\u5727\u964d\u4e0b\u3001\u6e29\u5ea6\u4e0a\u6607\u3001\u7b50\u4f53\u306e\u71b1\u306b\u95a2\u3059\u308b\u8003\u616e\u4e8b\u9805\u3002.<\/li>\n    <\/ul>\n\n    <h3>3) \u56f3\u9762\u3068\u30b9\u30b1\u30b8\u30e5\u30fc\u30eb<\/h3>\n    <ul>\n      <li><strong>1\u884c\u30c0\u30a4\u30a2\u30b0\u30e9\u30e0\uff1a<\/strong> AC\u304a\u3088\u3073DC\uff1b\u5404\u5c64\u306eSPD\u30b9\u30c6\u30fc\u30b8\u304a\u3088\u3073\u6f0f\u96fb\u906e\u65ad\u5668\u306e\u30bf\u30a4\u30d7\uff0f\u5b9a\u683c\u3092\u793a\u3059\u3002.<\/li>\n      <li><strong>\u30d1\u30cd\u30eb\u306e\u30b9\u30b1\u30b8\u30e5\u30fc\u30eb<\/strong> \u30d6\u30ec\u30fc\u30ab\u30fc\u5b9a\u683c\u3001\u30ab\u30fc\u30d6\u3001\u6f0f\u96fb\u906e\u65ad\u5668\u611f\u5ea6\u3001\u5c02\u7528\u9805\u76ee <a href=\"https:\/\/cnkuangya.com\/ja\/afdd\/\">\u30a8\u30fc\u30a8\u30d5\u30c7\u30a3\u30fc<\/a> \u30b5\u30fc\u30ad\u30c3\u30c8\u3002.<\/li>\n      <li><strong>\u30b1\u30fc\u30d6\u30eb\u914d\u7dda\u3068\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0\uff1a<\/strong> MET\u306e\u4f4d\u7f6e\u3001SPD\u30ea\u30fc\u30c9\u7dda\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\uff08\u30b7\u30e7\u30fc\u30c8\/\u30d1\u30e9\u30ec\u30eb\uff09\u3001\u63a5\u5730\u30b9\u30ad\u30fc\u30e0\uff08TN\/TT\/IT\uff09\u3002.<\/li>\n      <li><strong>\u8abf\u6574\u8868\uff1a<\/strong> \u30e1\u30fc\u30ab\u30fc\u306e\u9078\u629e\u6027\/\u30ab\u30b9\u30b1\u30fc\u30c9\u30c6\u30fc\u30d6\u30eb\u3092\u5b9f\u969b\u306e\u30c7\u30d0\u30a4\u30b9\u30e2\u30c7\u30eb\u3068\u7167\u5408\u3002.<\/li>\n    <\/ul>\n\n    <h3>4) \u88fd\u54c1\u30c7\u30fc\u30bf\u3068\u8a8d\u8a3c<\/h3>\n    <ul>\n      <li>\u5404\u4fdd\u8b77\u88c5\u7f6e\u306e\u30c7\u30fc\u30bf\u30b7\u30fc\u30c8\uff1a\u5b9a\u683c\u3001\u30c8\u30ea\u30c3\u30d7\u30ab\u30fc\u30d6\u3001\u8a31\u5bb9\u5dee\u3001\u74b0\u5883\u9650\u754c\u3002.<\/li>\n      <li>\u5f15\u7528\u898f\u683c\u306b\u57fa\u3065\u304f\u9069\u5408\u5ba3\u8a00\u66f8\uff0f\u578b\u5f0f\u8a66\u9a13\u5831\u544a\u66f8\u3002.<\/li>\n      <li>\u4ed8\u5c5e\u54c1\u306e\u8a73\u7d30\uff1a\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u30b7\u30e3\u30f3\u30c8\u30c8\u30ea\u30c3\u30d7\u3001\u88dc\u52a9\u88c5\u7f6e\u3001\u30b5\u30fc\u30b8\u30ab\u30a6\u30f3\u30bf\/\u30a4\u30f3\u30b8\u30b1\u30fc\u30bf\u3002.<\/li>\n    <\/ul>\n\n    <h3>5) \u8a2d\u7f6e\u65b9\u6cd5\u66f8<\/h3>\n    <ul>\n      <li>\u7d42\u7aef\u3001\u30c8\u30eb\u30af\u5024\u3001\u7de0\u3081\u4ed8\u3051\u9806\u5e8f\u3001\u518d\u30c8\u30eb\u30af\u9593\u9694\u3002.<\/li>\n      <li>\u6f0f\u96fb\u906e\u65ad\u5668\u306e\u30cb\u30e5\u30fc\u30c8\u30e9\u30eb\u8fd4\u5374\u30dd\u30ea\u30b7\u30fc\uff1b\u6a5f\u5668\u9593\u3067\u30cb\u30e5\u30fc\u30c8\u30e9\u30eb\u3092\u5171\u6709\u3057\u306a\u3044\uff1bDC\u30b7\u30b9\u30c6\u30e0\u306e\u6975\u6027\u30c1\u30a7\u30c3\u30af\u3002.<\/li>\n      <li>SPD\u306e\u30ea\u30fc\u30c9\u7dda\u9577\u3055\u306e\u5236\u9650\u3068\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0\u306e\u6307\u793a\u3001\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306e\u30b7\u30fc\u30ea\u30f3\u30b0\u3068\u30af\u30ea\u30fc\u30d7\uff0f\u30af\u30ea\u30a2\u30e9\u30f3\u30b9\u306b\u95a2\u3059\u308b\u6ce8\u610f\u4e8b\u9805\u3002.<\/li>\n    <\/ul>\n\n    <h3>6) \u8a66\u9a13\u3068\u8a66\u904b\u8ee2\u306e\u8a18\u9332<\/h3>\n    <ul>\n      <li>\u5c0e\u901a\/IR\u7d50\u679c\u3001\u30a2\u30fc\u30b9\u30eb\u30fc\u30d7\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u307e\u305f\u306f\u6545\u969c\u96fb\u6d41\u5024\u3002.<\/li>\n      <li>\u6f0f\u96fb\u906e\u65ad\u5668\u306e\u30c8\u30ea\u30c3\u30d7\u6642\u9593\uff0f\u96fb\u6d41\u30c6\u30b9\u30c8\u3001AFDD \u6a5f\u80fd\u30c6\u30b9\u30c8\uff08\u30e1\u30fc\u30ab\u30fc\u624b\u9806\u306b\u3088\u308b\uff09\u3002.<\/li>\n      <li>SPD\u30a4\u30f3\u30b8\u30b1\u30fc\u30bf\u306e\u30b9\u30c6\u30fc\u30bf\u30b9\u3068\u4e0a\u6d41OCPD\u306e\u691c\u8a3c\u3001\u8abf\u6574\u306b\u95a2\u9023\u3059\u308b\u30b1\u30fc\u30d6\u30eb\u9577\u3092\u8a18\u9332\u3002.<\/li>\n    <\/ul>\n\n    <h3>7)O&amp;M\u304a\u3088\u3073\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u8a08\u753b<\/h3>\n    <ul>\n      <li>\u6f0f\u96fb\u906e\u65ad\u5668\u3001SPD\u3001\u7d42\u7aef\u306e\u5b9a\u671f\u691c\u67fb\u9593\u9694\uff08\u9ad8\u96fb\u6d41\u7d99\u624b\u306b\u306f\u30b5\u30fc\u30de\u30eb\u30b9\u30ad\u30e3\u30f3\u3092\u63a8\u5968\uff09\u3002.<\/li>\n      <li>\u4ea4\u63db\u57fa\u6e96\uff1a\u6f0f\u96fb\u906e\u65ad\u5668\u306e\u8ff7\u60d1\u30c8\u30ea\u30c3\u30d7\u3057\u304d\u3044\u5024\u3001SPD \u306e\u5bff\u547d\u8868\u793a\u3001\u30d6\u30ec\u30fc\u30ab\u306e\u6a5f\u68b0\u7684\uff0f\u96fb\u6c17\u7684\u8010\u4e45\u6027\u3002.<\/li>\n      <li>\u30b9\u30da\u30a2\u30d1\u30fc\u30c4\u30ea\u30b9\u30c8\u304a\u3088\u3073\u88c5\u7f6e\u8a2d\u5b9a\u30ed\u30b0\uff08\u30ab\u30fc\u30d6\u3001\u611f\u5ea6\u3001\u8abf\u6574\u30e1\u30e2\uff09\u3002.<\/li>\n    <\/ul>\n\n    <div class=\"callout\">\n      <p><strong>\u30d2\u30f3\u30c8<\/strong> \u63d0\u51fa\u66f8\u985e\u7528\u306e\u6539\u8a02\u7ba1\u7406\u3055\u308c\u305fPDF\u30bb\u30c3\u30c8\u3068\u3001\u7de8\u96c6\u53ef\u80fd\u306a\u5225\u306e\u30bd\u30fc\u30b9\u30bb\u30c3\u30c8\uff08CAD\uff0b\u8a08\u7b97\u30b7\u30fc\u30c8\uff09\u3092\u4fdd\u7ba1\u3059\u308b\u3002\u30b5\u30a4\u30c8\u3068\u8a18\u9332\u306e\u4e0d\u4e00\u81f4\u3092\u907f\u3051\u308b\u305f\u3081\u3001\u627f\u8a8d\u3055\u308c\u305f\u5909\u66f4\u5f8c\u306b\u4e21\u65b9\u3092\u66f4\u65b0\u3059\u308b\u3002.<\/p>\n    <\/div>\n  <\/div>\n<\/section>\n\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-17b05c8\" data-block-id=\"17b05c8\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-17b05c8-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-ddf2dfa\" data-v=\"4\" data-block-id=\"ddf2dfa\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-ddf2dfa-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-ddf2dfa-inner-blocks\">\n<!-- ===== SEC 09 \u2014 Troubleshooting & Common Pitfalls (LV Protection) ===== -->\n<section id=\"sec09-troubleshooting\" aria-label=\"\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3068\u3088\u304f\u3042\u308b\u843d\u3068\u3057\u7a74\">\n  <style>\n    \/* SEO-first: H2\/H3 structure + lightweight inline CSS *\/\n    #sec09-troubleshooting{padding:40px 16px;background:#fff;color:#111827}\n    #sec09-troubleshooting .wrap{max-width:1120px;margin:0 auto}\n    #sec09-troubleshooting h2{font:800 26px\/1.25 ui-sans-serif,system-ui,-apple-system,\"Segoe UI\",Arial;margin:0 0 12px}\n    #sec09-troubleshooting h3{font:700 18px\/1.35 ui-sans-serif,system-ui,-apple-system,\"Segoe UI\",Arial;margin:20px 0 8px}\n    #sec09-troubleshooting p{margin:0 0 12px}\n    #sec09-troubleshooting ul{margin:0 0 12px 20px}\n    #sec09-troubleshooting li{margin:6px 0}\n    #sec09-troubleshooting a{color:#B5220E;text-decoration:underline}\n    #sec09-troubleshooting .callout{background:#fff7ed;border:1px solid #fed7aa;border-radius:10px;padding:12px;margin:14px 0}\n  <\/style>\n\n  <div class=\"wrap\">\n    <h2>\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3068\u3088\u304f\u3042\u308b\u843d\u3068\u3057\u7a74<\/h2>\n    <p>\u3053\u306e\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8\u3092\u4f7f\u7528\u3057\u3066\u3001\u5c64\u72b6\u4fdd\u8b77\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3051\u308b\u8ff7\u60d1\u30c8\u30ea\u30c3\u30d7\u3001\u30b5\u30fc\u30b8\u640d\u50b7\u3001\u304a\u3088\u3073\u8abf\u6574\u306e\u554f\u984c\u3092\u8fc5\u901f\u306b\u8a3a\u65ad\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u898f\u7bc4\u7684\u306a\u80cc\u666f\u306b\u3064\u3044\u3066\u306f\u3001\u4ee5\u4e0b\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002 <a href=\"https:\/\/www.iec.ch\/\" target=\"_blank\" rel=\"noopener\">\u56fd\u969b\u96fb\u6c17\u6a19\u6e96\u4f1a\u8b70<\/a>.<\/p>\n\n    <h3>1\uff09\u6f0f\u96fb\u906e\u65ad\u5668\u306e\u8aa4\u4f5c\u52d5<\/h3>\n    <ul>\n      <li><strong>\u30bf\u30a4\u30d7A\u306e\u6df7\u5408\u6ce2\u5f62\uff1a<\/strong> VFD\/EV\/PV\u306e\u5206\u5c90\u306f\u30b9\u30e0\u30fc\u30ba\u306aDC\u3092\u6f0f\u3089\u3059\u3053\u3068\u304c\u3042\u308b \u2192 \u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u3059\u308b <a href=\"https:\/\/cnkuangya.com\/ja\/rcbo\/\">\u30a2\u30fc\u30eb\u30b7\u30fc\u30dc<\/a> \u30bf\u30a4\u30d7 <strong>B<\/strong> (\u307e\u305f\u306f\u30e1\u30fc\u30ab\u30fc\u304c\u627f\u8a8d\u3057\u305f\u4ee3\u66ff\u54c1\uff09\u3092\u3001\u5f71\u97ff\u3092\u53d7\u3051\u308b\u30d6\u30e9\u30f3\u30c1\u306b\u53d6\u308a\u4ed8\u3051\u3066\u304f\u3060\u3055\u3044\u3002.<\/li>\n      <li><strong>\u30cb\u30e5\u30fc\u30c8\u30e9\u30eb\u306a\u3082\u306e\u3092\u5171\u6709\u3059\u308b\uff1a<\/strong> \u305d\u308c\u305e\u308c\u306e\u6f0f\u96fb\u906e\u65ad\u5668\/RCBO\u306e\u30cb\u30e5\u30fc\u30c8\u30e9\u30eb\u304c\u540c\u3058\u88c5\u7f6e\u3092\u901a\u3063\u3066\u623b\u3063\u3066\u304f\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/li>\n      <li><strong>\u30ea\u30fc\u30b1\u30fc\u30b8\u30fb\u30d0\u30b8\u30a7\u30c3\u30c6\u30a3\u30f3\u30b0\uff1a<\/strong> \u4e88\u60f3\u3055\u308c\u308b\u30ea\u30fc\u30af\u3092\u5408\u8a08\u3057\u3001\u5b9a\u5e38\u72b6\u614b\u3067\u306eI\u0394n\u3092\uff5e30\uff5e40%\u4ee5\u4e0b\u306b\u6291\u3048\u308b\u3002 <a href=\"https:\/\/cnkuangya.com\/ja\/rccb\/\">RCCB<\/a>\/\u5fc5\u8981\u306b\u5fdc\u3058\u3066RCBO\u3092\u884c\u3046\u3002.<\/li>\n      <li><strong>\u63a1\u70b9\uff1a<\/strong> \u4e0a\u6d41\u5074\u9078\u629e\u578b\uff08\u30bf\u30a4\u30d7S 100-300 mA\uff09 \u2192 \u4e0b\u6d41\u5074\u226630 mA; \u4e0a\u6d41\u5074\u306e\u611f\u5ea6\u304c\u4e0b\u6d41\u5074\u306e\u8010\u6027\u3092\u4e0a\u56de\u3089\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u3002.<\/li>\n    <\/ul>\n\n    <h3>2) SPD\u304c\u751f\u304d\u6b8b\u308c\u306a\u3044 \/ \u30b5\u30fc\u30b8\u6027\u80fd\u304c\u4f4e\u3044<\/h3>\n    <ul>\n      <li><strong>\u30ea\u30fc\u30c9\u306e\u9577\u3055\u304c\u9577\u3059\u304e\u308b\uff1a<\/strong> P\/N\/PE\u306e\u30ea\u30fc\u30c9\u7dda\u306f\u77ed\u304f\u3001\u307e\u3063\u3059\u3050\u306b\u3001\u4e00\u7dd2\u306b\u914d\u7dda\u3059\u308b\u3002 <a href=\"https:\/\/cnkuangya.com\/ja\/ac-spd\/\">AC SPD<\/a> \u305d\u3057\u3066 <a href=\"https:\/\/cnkuangya.com\/ja\/%e7%9b%b4%e6%b5%81%e5%9b%9e%e8%bb%a2%e6%95%b0\/\">DC SPD<\/a>.<\/li>\n      <li><strong>\u30b9\u30c6\u30fc\u30b8\u304c\u9055\u3046\uff1a<\/strong> \u30b1\u30fc\u30d6\u30eb\u304c\u77ed\u3044\u5834\u5408\u306f\u3001\u30c7\u30ab\u30c3\u30d7\u30ea\u30f3\u30b0\u30a4\u30f3\u30c0\u30af\u30bf\u30f3\u30b9\u3092\u8ffd\u52a0\u3059\u308b\u304b\u3001\u30bf\u30a4\u30d73\u3092\u3088\u308a\u8fd1\u304f\u306b\u914d\u7f6e\u3059\u308b\u3002.<\/li>\n      <li><strong>\u30d0\u30c3\u30af\u30a2\u30c3\u30d7 OCPD\/SCCR \u306e\u4e0d\u4e00\u81f4\uff1a<\/strong> \u5fc5\u8981\u306a\u4e0a\u6d41\u306eMCB\/\u30d2\u30e5\u30fc\u30ba\u304a\u3088\u3073\u77ed\u7d61\u5b9a\u683c\u3092\u30c7\u30d0\u30a4\u30b9\u306e\u30c7\u30fc\u30bf\u30b7\u30fc\u30c8\u3068\u7167\u5408\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/li>\n      <li><strong>PV\u6975\u6027\/DC\u5b9a\u683c\uff1a<\/strong> PV\/ESS\/EV\u306fU\u3092\u78ba\u4fdd\u3059\u308b<sub>\u30b7\u30fc\u30d4\u30fc\u30d6\u30a4<\/sub>\/U<sub>c<\/sub>, I<sub>n<\/sub>\/I<sub>\u30de\u30c3\u30af\u30b9<\/sub> AC\u306e\u307f\u306eSPD\u3092DC\u3067\u518d\u4f7f\u7528\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002.<\/li>\n    <\/ul>\n\n    <h3>3) \u8d77\u52d5\u6642\u306eMCB\/MCCB\u30c8\u30ea\u30c3\u30d7<\/h3>\n    <ul>\n      <li><strong>\u30ab\u30fc\u30d6\u304c\u6b63\u3057\u304f\u306a\u3044\uff1a<\/strong> \u30ab\u30fc\u30d6B\u306e\u9ad8\u7a81\u5165\u30e2\u30fc\u30bf\u30fc\/\u5909\u5727\u5668\u306f\u30c8\u30ea\u30c3\u30d7\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u305f\u3081\u3001\u5207\u65ad\u6642\u9593\u3092\u78ba\u8a8d\u3057\u305f\u4e0a\u3067\u30ab\u30fc\u30d6C\/D\u306b\u79fb\u52d5\u3059\u308b\u3053\u3068\u3002.<\/li>\n      <li><strong>\u30a2\u30f3\u30c0\u30fc\u30b5\u30a4\u30ba<em>CU<\/em>\/I<em>cs<\/em>:<\/strong> \u9069\u5207\u306a\u906e\u65ad\u5bb9\u91cf\u3092\u6301\u3064\u30c7\u30d0\u30a4\u30b9\u3092\u9078\u3073\u3001\u30ab\u30b9\u30b1\u30fc\u30c9\/\u9078\u629e\u6027\u30c1\u30e3\u30fc\u30c8\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u3002.<\/li>\n      <li><strong>\u6e29\u5ea6\u30c7\u30a3\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\uff1a<\/strong> \u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306e\u6e29\u5ea6\u4e0a\u6607\u3068\u5c0e\u4f53\u306e\u30b5\u30a4\u30b8\u30f3\u30b0\u3092\u8003\u616e\u3057\u3001\u305d\u308c\u306b\u5fdc\u3058\u3066\u516c\u79f0\u96fb\u6d41\u3092\u518d\u8a2d\u5b9a\u3059\u308b\u3002.<\/li>\n    <\/ul>\n\n    <h3>4) AFDD \u8aa4\u30a2\u30e9\u30fc\u30e0\u307e\u305f\u306f\u30c8\u30ea\u30c3\u30d7\u306a\u3057<\/h3>\n    <ul>\n      <li><strong>\u4e92\u63db\u6027\uff1a<\/strong> \u30da\u30a2 <a href=\"https:\/\/cnkuangya.com\/ja\/afdd\/\">\u30a8\u30fc\u30a8\u30d5\u30c7\u30a3\u30fc<\/a> AFDD\u30b7\u30b0\u30cd\u30c1\u30e3\u3092\u8aa4\u8a8d\u3059\u308b\u4e0a\u6d41\u306e\u6f0f\u96fb\u906e\u65ad\u5668\u30bf\u30a4\u30d7\u306f\u907f\u3051\u3066\u304f\u3060\u3055\u3044\u3002.<\/li>\n      <li><strong>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u9069\u5408\uff1a<\/strong> \u30b9\u30ea\u30fc\u30d4\u30f3\u30b0\u30a8\u30ea\u30a2\u3001\u8001\u673d\u5316\u3057\u305f\u914d\u7dda\u3001\u30ea\u30b9\u30af\u306e\u9ad8\u3044\u30bd\u30b1\u30c3\u30c8\u306b\u512a\u5148\u9806\u4f4d\u3092\u3064\u3051\u308b\u3002VFD\u3092\u591a\u7528\u3059\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u3064\u3044\u3066\u306f\u3001\u30e1\u30fc\u30ab\u30fc\u306e\u30ac\u30a4\u30c0\u30f3\u30b9\u3092\u78ba\u8a8d\u3059\u308b\u3002.<\/li>\n    <\/ul>\n\n    <h3>5) \u30a2\u30fc\u30b7\u30f3\u30b0\u3068\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0\u306e\u9593\u9055\u3044<\/h3>\n    <ul>\n      <li><strong>MET\u306f\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u306a\u3044\uff1a<\/strong> \u4e3b\u8981\u306a\u7b49\u96fb\u4f4d\u30ce\u30fc\u30c9\u3092\u5b9a\u7fa9\u3057\u3001\u30e9\u30d9\u30eb\u3092\u4ed8\u3051\u308b\u3002.<\/li>\n      <li><strong>\u30b7\u30b9\u30c6\u30e0\u306e\u30a2\u30fc\u30b9\u306e\u53d6\u308a\u9055\u3048\uff1a<\/strong> TT \u306f ADS \u7528\u6f0f\u96fb\u906e\u65ad\u5668\u306b\u4f9d\u5b58\u3057\u3001\u63a5\u5730\u96fb\u6975\u62b5\u6297\u3092\u691c\u8a3c\u3059\u308b\u3002.<\/li>\n      <li><strong>AC\/DC\u30cf\u30a4\u30d6\u30ea\u30c3\u30c9\u30b5\u30a4\u30c8\uff1a<\/strong> \u4ea4\u6d41\u5074\u3068\u76f4\u6d41\u5074\uff08PV\/ESS\/EV\uff09\u9593\u3067\u4e00\u8cab\u3057\u305f\u57fa\u6e96\u3092\u7dad\u6301\u3057\u3001\u5927\u304d\u306a\u30eb\u30fc\u30d7\u9818\u57df\u3092\u907f\u3051\u308b\u3002.<\/li>\n    <\/ul>\n\n    <h3>6) \u627f\u8a8d\u3092\u59a8\u3052\u308b\u66f8\u985e\u306e\u4e0d\u5099<\/h3>\n    <ul>\n      <li><strong>\u4e00\u884c\u66f4\u65b0\u306e\u6b20\u843d\uff1a<\/strong> AC\/DC\u4e00\u7dda\u96fb\u6d41\u3092SPD\u30b9\u30c6\u30fc\u30b8\u3068\u6f0f\u96fb\u906e\u65ad\u5668\u306e\u30bf\u30a4\u30d7\/\u5b9a\u683c\u3067\u7ba1\u7406\u3059\u308b\u3002.<\/li>\n      <li><strong>\u9023\u643a\u306e\u8a3c\u660e\u306f\u306a\u3044\uff1a<\/strong> \u30d6\u30ec\u30fc\u30ab\u304a\u3088\u3073SPD\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u4fdd\u8b77\u7528\u306e\u30e1\u30fc\u30ab\u30fc\u9078\u629e\u6027\/\u30ab\u30b9\u30b1\u30fc\u30c9\u30c1\u30e3\u30fc\u30c8\u3092\u6dfb\u4ed8\u3059\u308b\u3002.<\/li>\n      <li><strong>\u30c6\u30b9\u30c8\u8a18\u9332\uff1a<\/strong> RCD\u30c8\u30ea\u30c3\u30d7\u6642\u9593\/\u96fb\u6d41\u7d50\u679c\u3001SPD\u30b9\u30c6\u30fc\u30bf\u30b9\u3001\u30a2\u30fc\u30b9\u30eb\u30fc\u30d7\/\u6545\u969c\u96fb\u6d41\u3001IR\u5024\u306a\u3069\u3002.<\/li>\n    <\/ul>\n\n    <div class=\"callout\">\n      <p><strong>\u65e9\u3044\u3082\u306e\u52dd\u3061\u3060\uff1a<\/strong> \u6545\u969c\u7b87\u6240\u3092\u7279\u5b9a\u3059\u308b\u5834\u5408\u306f\u3001\u30d5\u30a1\u30a4\u30ca\u30eb\u2192SMDB\u2192\u30b5\u30fc\u30d3\u30b9\u304b\u3089\u958b\u59cb\u3059\u308b\u3002\u5065\u5168\u306a\u56de\u8def\u304c\u30c0\u30a6\u30f3\u3057\u306a\u3044\u3088\u3046\u306bRCBO\u3067\u30a2\u30a4\u30bd\u30ec\u30fc\u30c8\u3059\u308b\u3002\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u3092\u4ea4\u63db\u3059\u308b\u524d\u306b\u3001\u30cb\u30e5\u30fc\u30c8\u30e9\u30eb\u3001\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0\u3001SPD\u30ea\u30fc\u30c9\u306e\u30c9\u30ec\u30b9\u3092\u78ba\u8a8d\u3059\u308b\u3002.<\/p>\n    <\/div>\n  <\/div>\n<\/section>\n\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns stk-block-columns stk-block stk-aeddf05\" data-block-id=\"aeddf05\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-aeddf05-column\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-1fe0221\" data-v=\"4\" data-block-id=\"1fe0221\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-1fe0221-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-1fe0221-inner-blocks\">\n<!-- ===== SEC 10 \u2014 FAQ & Quick Reference (SEO-structured) ===== -->\n<section id=\"sec10-faq\" aria-label=\"\u3088\u304f\u3042\u308b\u8cea\u554f\u3068\u30af\u30a4\u30c3\u30af\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\">\n  <style>\n    \/* SEO-first: H2\/H3 structure + lightweight inline CSS *\/\n    #sec10-faq{padding:40px 16px;background:#fff;color:#111827}\n    #sec10-faq .wrap{max-width:1120px;margin:0 auto}\n    #sec10-faq h2{font:800 26px\/1.25 ui-sans-serif,system-ui,-apple-system,\"Segoe UI\",Arial;margin:0 0 12px}\n    #sec10-faq h3{font:700 18px\/1.35 ui-sans-serif,system-ui,-apple-system,\"Segoe UI\",Arial;margin:20px 0 8px}\n    #sec10-faq p{margin:0 0 12px}\n    #sec10-faq ul{margin:0 0 12px 20px}\n    #sec10-faq li{margin:6px 0}\n    #sec10-faq a{color:#B5220E;text-decoration:underline}\n    #sec10-faq .muted{color:#4B5563}\n    #sec10-faq .callout{background:#fff7ed;border:1px solid #fed7aa;border-radius:10px;padding:12px;margin:14px 0}\n  <\/style>\n\n  <div class=\"wrap\">\n    <h2>\u3088\u304f\u3042\u308b\u8cea\u554f\u3068\u30af\u30a4\u30c3\u30af\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9<\/h2>\n    <p class=\"muted\">\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001LV \u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3051\u308b\u5c64\u72b6\u4fdd\u8b77\u306b\u95a2\u3059\u308b\u8a2d\u8a08\/\u8a2d\u7f6e\u306e\u4e00\u822c\u7684\u306a\u8cea\u554f\u306b\u56de\u7b54\u3057\u307e\u3059\u3002\u898f\u7bc4\u3068\u306a\u308b\u30ac\u30a4\u30c0\u30f3\u30b9\u306b\u3064\u3044\u3066\u306f <a href=\"https:\/\/www.iec.ch\/\" target=\"_blank\" rel=\"noopener\">\u56fd\u969b\u96fb\u6c17\u6a19\u6e96\u4f1a\u8b70<\/a>. .(\u5185\u90e8\u8aad\u307f\uff1a <a href=\"https:\/\/cnkuangya.com\/ja\/rccb\/\">RCCB<\/a>, <a href=\"https:\/\/cnkuangya.com\/ja\/rcbo\/\">\u30a2\u30fc\u30eb\u30b7\u30fc\u30dc<\/a>, <a href=\"https:\/\/cnkuangya.com\/ja\/afdd\/\">\u30a8\u30fc\u30a8\u30d5\u30c7\u30a3\u30fc<\/a>, <a href=\"https:\/\/cnkuangya.com\/ja\/ac-spd\/\">AC SPD<\/a>, <a href=\"https:\/\/cnkuangya.com\/ja\/%e7%9b%b4%e6%b5%81%e5%9b%9e%e8%bb%a2%e6%95%b0\/\">DC SPD<\/a>.)<\/p>\n\n    <h3>RCD \/ RCBO<\/h3>\n    <ul>\n      <li><strong>Q:<\/strong> \u3069\u306e\u3088\u3046\u306a\u5834\u5408\u306b30mA\u4ee5\u4e0b\u306e\u30c7\u30d0\u30a4\u30b9\u3092\u4f7f\u3046\u3079\u304d\u3067\u3059\u304b\uff1f <br><strong>A:<\/strong> \u6700\u7d42\u56de\u8def\uff08\u30bd\u30b1\u30c3\u30c8\u3001\u6fe1\u308c\u305f\u5834\u6240\u3001\u30dd\u30fc\u30bf\u30d6\u30eb\u8ca0\u8377\uff09\u306e\u8ffd\u52a0\u885d\u6483\u4fdd\u8b77\u7528\u3002\u512a\u5148\u9806\u4f4d <a href=\"https:\/\/cnkuangya.com\/ja\/rcbo\/\">\u30a2\u30fc\u30eb\u30b7\u30fc\u30dc<\/a> \u4ed6\u306e\u56de\u8def\u3092\u505c\u96fb\u3055\u305b\u308b\u3053\u3068\u306a\u304f\u30011\u3064\u306e\u56de\u8def\u3092\u5206\u96e2\u3059\u308b\u3002.<\/li>\n      <li><strong>Q:<\/strong> \u3069\u306e\u30bf\u30a4\u30d7\uff08A\/F\/B\uff09\u3092\u9078\u3079\u3070\u3044\u3044\u3067\u3059\u304b\uff1f <br><strong>A:<\/strong> \u30bf\u30a4\u30d7A\u306f\u4e00\u822c\u7684\u306a\u5358\u76f8\u96fb\u5b50\u6a5f\u5668\u7528\u3001\u30bf\u30a4\u30d7F\u306f\u5358\u76f8\u30b3\u30f3\u30d0\u30fc\u30bf\uff0f\u30d2\u30fc\u30c8\u30dd\u30f3\u30d7\u7528\u3001\u30bf\u30a4\u30d7B\u306f\u4e09\u76f8VFD\u3001PV\u3001UPS\u3001EV\u5145\u96fb\u5668\u7528\u3002.<\/li>\n      <li><strong>Q:<\/strong> \u30bb\u30ec\u30af\u30c6\u30a3\u30d6\u30fb\u30a2\u30c3\u30d7\u30b9\u30c8\u30ea\u30fc\u30e0\u30fb\u30c7\u30d0\u30a4\u30b9\u306f\u5fc5\u8981\u3067\u3059\u304b\uff1f <br><strong>A:<\/strong> 100-300mA\u3092\u4f7f\u7528 <em>\u30bf\u30a4\u30d7S<\/em> \u8a31\u5bb9\u3055\u308c\u308b\u5834\u5408\u3001\u9632\u706b\u304a\u3088\u3073\u6642\u9593\u9078\u629e\u6027\u306e\u305f\u3081\u306b\u4e0a\u6d41\u306b\u3001\u4e0b\u6d41\u306f\u226430 mA\u306e\u307e\u307e\u3002.<\/li>\n      <li><strong>Q:<\/strong> IT\uff0fAV\u6df7\u8f09\u8eca\u306b\u3088\u308b\u8ff7\u60d1\u306a\u30c8\u30ea\u30c3\u30d7\u3001\u3069\u3046\u3059\u308b\uff1f <br><strong>A:<\/strong> \u8ca0\u8377\u3092\u8907\u6570\u306b\u5206\u3051\u308b <a href=\"https:\/\/cnkuangya.com\/ja\/rcbo\/\">\u30a2\u30fc\u30eb\u30b7\u30fc\u30dc<\/a> \u6f0f\u96fb\u3092\u30c8\u30ea\u30c3\u30d7\u3057\u304d\u3044\u5024\u4ee5\u4e0b\u306b\u6291\u3048\u308b\u3002\u6f0f\u96fb\u906e\u65ad\u5668\u56de\u8def\u9593\u3067\u30cb\u30e5\u30fc\u30c8\u30e9\u30eb\u3092\u5171\u6709\u3057\u306a\u3044\u3002.<\/li>\n    <\/ul>\n\n    <h3>\u30a8\u30fc\u30a8\u30d5\u30c7\u30a3\u30fc<\/h3>\n    <ul>\n      <li><strong>Q:<\/strong> AFDD\u304c\u6700\u3082\u6709\u76ca\u306a\u306e\u306f\u3069\u3053\u3067\u3059\u304b\uff1f <br><strong>A:<\/strong> \u5c31\u5bdd\u5834\u6240\u3001\u8001\u673d\u5316\u3057\u305f\u914d\u7dda\u3001\u5371\u967a\u6027\u306e\u9ad8\u3044\u30bd\u30b1\u30c3\u30c8\u56de\u8def\u3001\u53ef\u71c3\u6027\u74b0\u5883\u3001\u30da\u30a2 <a href=\"https:\/\/cnkuangya.com\/ja\/afdd\/\">\u30a8\u30fc\u30a8\u30d5\u30c7\u30a3\u30fc<\/a> \u88fd\u9020\u5143\u306e\u6307\u793a\u306b\u5f93\u3063\u3066MCB\/RCBO\u3092\u4f7f\u7528\u3059\u308b\u3002.<\/li>\n      <li><strong>Q:<\/strong> AFDD\u306f\u4e0a\u6d41\u306eRCD\u3068\u7af6\u5408\u3059\u308b\u306e\u304b\uff1f <br><strong>A:<\/strong> \u9069\u5207\u306a\u30b0\u30ec\u30fc\u30c7\u30a3\u30f3\u30b0\u3092\u7dad\u6301\u3059\u308b\u3002AFDD\u30b7\u30b0\u30cd\u30c1\u30e3\u3092\u8aa4\u8a8d\u3059\u308b\u53ef\u80fd\u6027\u306e\u3042\u308b\u4e0a\u6d41\u30c7\u30d0\u30a4\u30b9\u3092\u907f\u3051\u308b\u3002.<\/li>\n    <\/ul>\n\n    <h3>SPD (AC \/ DC)<\/h3>\n    <ul>\n      <li><strong>Q:<\/strong> SPD\u306f\u3069\u306e\u3088\u3046\u306b\u30b9\u30c6\u30fc\u30b8\u5206\u3051\u3059\u308b\u306e\u3067\u3059\u304b\uff1f <br><strong>A:<\/strong> \u30b5\u30fc\u30d3\u30b9\u30a8\u30f3\u30c8\u30e9\u30f3\u30b9\u306b\u30bf\u30a4\u30d71\/1+2\u3001SMDB\u306b\u30bf\u30a4\u30d72\u3001\u9ad8\u611f\u5ea6\u8ca0\u8377\u306e\u8fd1\u304f\u306b\u30bf\u30a4\u30d73\u3002\u53c2\u7167 <a href=\"https:\/\/cnkuangya.com\/ja\/ac-spd\/\">AC SPD<\/a>.<\/li>\n      <li><strong>Q:<\/strong> SPD\u306f\u306a\u305c\u5d50\u306e\u4e2d\u3067\u6545\u969c\u3059\u308b\u306e\u304b\uff1f <br><strong>A:<\/strong> \u30ea\u30fc\u30c9\u7dda\u304c\u9577\u3059\u304e\u308b\u304b\u3001 \u30dc\u30f3\u30c7\u30a3\u30f3\u30b0\u4e0d\u826f\u3002P\/N\/PE\u3092\u77ed\u304f\u3001\u307e\u3063\u3059\u3050\u306b\u3001\u4e00\u7dd2\u306b\u914d\u7dda\u3057\u3001MET\u306b\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0\u3057\u3001SCCR\u3068\u30d0\u30c3\u30af\u30a2\u30c3\u30d7OCPD\u3092\u78ba\u8a8d\u3059\u308b\u3002.<\/li>\n      <li><strong>Q:<\/strong> PV\/ESS\/EV\u306b\u3064\u3044\u3066\u306f\uff1f <br><strong>A:<\/strong> \u7528\u9014 <a href=\"https:\/\/cnkuangya.com\/ja\/%e7%9b%b4%e6%b5%81%e5%9b%9e%e8%bb%a2%e6%95%b0\/\">DC SPD<\/a> U\u306e\u30b5\u30a4\u30ba<sub>\u30b7\u30fc\u30d4\u30fc\u30d6\u30a4<\/sub>\/U<sub>c<\/sub>, U<sub>p<\/sub>, \u6975\u6027\u3092\u7dad\u6301\u3057\u3001\u30ea\u30fc\u30c9\u7dda\u3092\u975e\u5e38\u306b\u77ed\u304f\u3059\u308b\u3002.<\/li>\n    <\/ul>\n\n    <h3>\u904e\u96fb\u6d41\uff08MCB\/MCCB\/\u30d2\u30e5\u30fc\u30ba\uff09<\/h3>\n    <ul>\n      <li><strong>Q:<\/strong> \u30ab\u30fc\u30d6\u9078\u629e\u306e\u57fa\u672c\uff1f <br><strong>A:<\/strong> \u6a19\u6e96\u7684\u306a\u6700\u7d42\u56de\u8def\u306b\u306f\u66f2\u7ddaB\u3092\u3001\u9ad8\u3044\u7a81\u5165\u96fb\u6d41\uff08\u30e2\u30fc\u30bf\u30fc\uff0f\u5909\u5727\u5668\uff09\u306b\u306f\u3001\u691c\u8a3c\u3055\u308c\u305f\u906e\u65ad\u6642\u9593\u3068\u5341\u5206\u306a\u906e\u65ad\u5bb9\u91cf\uff08I<em>CU<\/em>\/I<em>cs<\/em>).<\/li>\n      <li><strong>Q:<\/strong> \u8d77\u52d5\u6642\u306b\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u843d\u3061\u308b\u306e\u306f\u306a\u305c\u3067\u3059\u304b\uff1f <br><strong>A:<\/strong> \u30a4\u30f3\u30e9\u30c3\u30b7\u30e5\u304c\u8003\u616e\u3055\u308c\u3066\u3044\u306a\u3044\u3002<em>CU<\/em>\/I<em>cs<\/em>, \u307e\u305f\u306f\u8abf\u6574\u30ae\u30e3\u30c3\u30d7\u3002PSC\u3092\u518d\u8a08\u7b97\u3057\u3001\u30e1\u30fc\u30ab\u30fc\u306e\u9078\u629e\u6027\uff0f\u30ab\u30b9\u30b1\u30fc\u30c9\u30c1\u30e3\u30fc\u30c8\u3092\u898b\u76f4\u3059\u3002.<\/li>\n    <\/ul>\n\n    <h3>\u30a2\u30fc\u30b7\u30f3\u30b0\uff06\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0<\/h3>\n    <ul>\n      <li><strong>Q:<\/strong> TN\/TT\/IT\u306e\u6271\u3044\u306f\u540c\u3058\u3067\u3059\u304b\uff1f <br><strong>A:<\/strong> TT \u306f ADS \u306e\u305f\u3081\u306b\u6f0f\u96fb\u906e\u65ad\u5668\u306b\u4f9d\u5b58\u3057\u3066\u3044\u308b\u3002IT\u306f\u7d76\u7e01\u76e3\u8996\u3068\u5b9a\u7fa9\u3055\u308c\u305f\u7b2c\u4e8c\u969c\u5bb3\u5bfe\u5fdc\u304c\u5fc5\u8981\u3002.<\/li>\n      <li><strong>Q:<\/strong> \u7c21\u5358\u306a\u30b1\u30fc\u30d6\u30eb\u914d\u7dda\u306e\u30b3\u30c4\u306f\uff1f <br><strong>A:<\/strong> \u30eb\u30fc\u30d7\u9762\u7a4d\u306e\u6700\u5c0f\u5316\u3001SPD\u3078\u306e\u76f8\/\u30cb\u30e5\u30fc\u30c8\u30e9\u30eb\u306e\u30c4\u30a4\u30b9\u30c8\u3001MET\u3078\u306e\u9023\u7d9a\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0\u306e\u7dad\u6301\u3001SPD\u8abf\u6574\u306e\u305f\u3081\u306e\u9577\u3055\u306e\u6587\u66f8\u5316\u3002.<\/li>\n    <\/ul>\n\n    <div class=\"callout\">\n      <p><strong>\u8fd1\u9053\u3060\uff1a<\/strong> \u30c8\u30c3\u30d7\u30c0\u30a6\u30f3\uff08\u30b5\u30fc\u30d3\u30b9\u2192SMDB\u2192\u30d5\u30a1\u30a4\u30ca\u30eb\uff09\u3067\u8a2d\u8a08\u3057\u3001\u30dc\u30c8\u30e0\u30a2\u30c3\u30d7\uff08\u30d5\u30a1\u30a4\u30ca\u30eb\u2192SMDB\u2192\u30b5\u30fc\u30d3\u30b9\uff09\u3067\u8a66\u904b\u8ee2\u3059\u308b\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u6545\u969c\u3092\u9694\u96e2\u3057\u3001\u30c6\u30b9\u30c8\u4e2d\u306b\u5065\u5168\u306a\u56de\u8def\u3092\u4fdd\u8b77\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002.<\/p>\n    <\/div>\n\n    <p class=\"muted\"><strong>\u4e3b\u8981\u898f\u683c\u306e\u53c2\u7167\uff1a<\/strong> <a href=\"https:\/\/www.iec.ch\/\" target=\"_blank\" rel=\"noopener\">\u56fd\u969b\u96fb\u6c17\u6a19\u6e96\u4f1a\u8b70<\/a>.<\/p>\n  <\/div>\n<\/section>\n\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Section 01 Low Voltage Distribution Protection (2025): A Standards-Aligned Layered Methodology Date: September 28, 2025 \u00b7 Publisher: Kuangya Blog Legal Disclaimer: This article is for informational purposes only and does not constitute professional engineering advice. All designs must be reviewed and approved by a licensed professional engineer in accordance with applicable codes and standards before execution. Safety: All work on electrical systems must be performed by qualified personnel following strict lockout-tagout (LOTO) procedures. No live-work instructions are provided. Executive Summary Modern installations\u2014especially those with VFDs, PV\/ESS, and EV chargers\u2014require a layered protection strategy that coordinates MCB\/MCCB (overcurrent), RCCB\/RCBO (shock\/fire), AFDD (arc-faults), and AC SPDs \/ DC SPDs (surges). This approach [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":1668,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[55],"tags":[],"class_list":["post-1887","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-circuit-breakers"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/cnkuangya.com\/ja\/wp-json\/wp\/v2\/posts\/1887","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cnkuangya.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cnkuangya.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cnkuangya.com\/ja\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/cnkuangya.com\/ja\/wp-json\/wp\/v2\/comments?post=1887"}],"version-history":[{"count":11,"href":"https:\/\/cnkuangya.com\/ja\/wp-json\/wp\/v2\/posts\/1887\/revisions"}],"predecessor-version":[{"id":1911,"href":"https:\/\/cnkuangya.com\/ja\/wp-json\/wp\/v2\/posts\/1887\/revisions\/1911"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cnkuangya.com\/ja\/wp-json\/wp\/v2\/media\/1668"}],"wp:attachment":[{"href":"https:\/\/cnkuangya.com\/ja\/wp-json\/wp\/v2\/media?parent=1887"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cnkuangya.com\/ja\/wp-json\/wp\/v2\/categories?post=1887"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cnkuangya.com\/ja\/wp-json\/wp\/v2\/tags?post=1887"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}