{"id":1785,"date":"2026-09-27T06:34:01","date_gmt":"2026-09-27T06:34:01","guid":{"rendered":"https:\/\/ritoks.com\/?p=1785"},"modified":"2026-10-04T06:58:11","modified_gmt":"2026-10-04T06:58:11","slug":"2-pole-vs-4-pole-dc-circuit-breakers","status":"publish","type":"post","link":"https:\/\/ritoks.com\/ja\/2-pole-vs-4-pole-dc-circuit-breakers\/","title":{"rendered":"2\u6975\u578b\u30684\u6975\u578b\u306e\u76f4\u6d41\u7528\u906e\u65ad\u5668\uff1a\u69cb\u6210\u3068\u9078\u5b9a\u306b\u95a2\u3059\u308b\u8ab2\u984c"},"content":{"rendered":"

Two-pole and four-pole DC circuit breakers are not simply small and large versions of the same answer. Pole count affects the permitted connection path, how conductors are disconnected and sometimes the voltage at which the complete device has documented interruption capability. The correct arrangement depends on system earthing, voltage, fault-current direction and the manufacturer’s exact wiring diagram.<\/p>\n

\u3053\u306e\u6bd4\u8f03\u306f\u3001\u76f4\u6d41\u7528MCB\u306e\u8cfc\u5165\u8005\u3092\u5bfe\u8c61\u3068\u3057\u305f\u691c\u8a0e\u306e\u67a0\u7d44\u307f\u3067\u3059\u30024\u6975\u304c\u81ea\u52d5\u7684\u306b\u5b89\u5168\u3067\u3042\u308b\u3068\u304b\u30012\u6975\u3067\u5e38\u306b\u5341\u5206\u3067\u3042\u308b\u3068\u3044\u3063\u305f\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u5b9a\u683c\u304a\u3088\u3073\u63a5\u7d9a\u306b\u95a2\u3059\u308b\u60c5\u5831\u306f\u3001\u63d0\u6848\u3055\u308c\u305f\u6ce8\u6587\u30b3\u30fc\u30c9\u306b\u57fa\u3065\u304f\u3082\u306e\u3067\u306a\u3051\u308c\u3070\u306a\u3089\u305a\u3001\u30ab\u30bf\u30ed\u30b0\u5185\u306e\u985e\u4f3c\u88fd\u54c1\u306b\u57fa\u3065\u304f\u3082\u306e\u3067\u3042\u3063\u3066\u306f\u306a\u308a\u307e\u305b\u3093\u3002.<\/p>\n

\u307e\u305a\u3001\u5c0e\u4f53\u3068\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u6975\u3092\u533a\u5225\u3057\u3066\u304f\u3060\u3055\u3044<\/h2>\n

2\u5c0e\u4f53\u306e\u76f4\u6d41\u30b7\u30b9\u30c6\u30e0\u306b\u306f\u6b63\u6975\u5c0e\u4f53\u3068\u8ca0\u6975\u5c0e\u4f53\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u305d\u306e\u4e8b\u5b9f\u3060\u3051\u3067\u306f\u5fc5\u8981\u306a\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u6975\u6570\u3092\u6c7a\u5b9a\u3059\u308b\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u30e1\u30fc\u30ab\u30fc\u306b\u3088\u3063\u3066\u306f\u3001\u7279\u5b9a\u306e\u76f4\u6d41\u5b9a\u683c\u96fb\u5727\u3092\u9054\u6210\u3059\u308b\u305f\u3081\u306b\u30011\u672c\u306e\u5c0e\u4f53\u306b\u8907\u6570\u306e\u6975\u3092\u76f4\u5217\u306b\u63a5\u7d9a\u3059\u308b\u3088\u3046\u6307\u5b9a\u3059\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002 \u307e\u305f\u3001\u4e21\u65b9\u306e\u5c0e\u4f53\u306b\u6975\u3092\u4f7f\u7528\u3059\u308b\u69cb\u6210\u3082\u3042\u308a\u307e\u3059\u3002\u5b9f\u969b\u306b\u4f55\u304c\u906e\u65ad\u3055\u308c\u308b\u304b\u306f\u3001\u300c4\u6975\u300d\u3068\u3044\u3046\u8a00\u8449\u3067\u306f\u306a\u304f\u3001\u56f3\u9762\u306b\u3088\u3063\u3066\u6c7a\u5b9a\u3055\u308c\u307e\u3059\u3002.<\/p>\n

\u914d\u7dda\u56f3\u306e\u5358\u7dda\u56f3\u4e0a\u3067\u3001\u3059\u3079\u3066\u306e\u5c0e\u4f53\u3001\u96fb\u6e90\u304a\u3088\u3073\u8ca0\u8377\u306e\u63a5\u7d9a\u7b87\u6240\u3092\u660e\u8a18\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u6b21\u306b\u3001\u5404\u6975\u3092\u901a\u308b\u60f3\u5b9a\u3055\u308c\u308b\u96fb\u6d41\u7d4c\u8def\u3092\u63cf\u304d\u8fbc\u3093\u3067\u304f\u3060\u3055\u3044\u3002\u30d6\u30ea\u30c3\u30b8\u30ea\u30f3\u30af\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f\u3001\u305d\u308c\u304c\u30e1\u30fc\u30ab\u30fc\u8a8d\u5b9a\u306e\u4ed8\u5c5e\u54c1\u3067\u3042\u308b\u304b\u3001\u4ed8\u5c5e\u306e\u63a5\u7d9a\u90e8\u54c1\u3067\u3042\u308b\u304b\u3001\u3042\u308b\u3044\u306f\u73fe\u5834\u3067\u306e\u6539\u9020\u304c\u7981\u6b62\u3055\u308c\u3066\u3044\u308b\u3082\u306e\u304b\u3092\u660e\u8a18\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u5916\u90e8\u7aef\u5b50\u306f\u6570\u306b\u5165\u308c\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002\u307e\u305f\u3001\u5404\u7aef\u5b50\u304c\u72ec\u7acb\u3057\u3066\u4fdd\u8b77\u3055\u308c\u305f\u5c0e\u4f53\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u3068\u307f\u306a\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n

\u305d\u306e\u906e\u65ad\u5668\u304c\u3001\u7247\u6975\u6027\u306e\u307f\u3001\u4e21\u6975\u6027\u3001\u3042\u308b\u3044\u306f\u6307\u5b9a\u3055\u308c\u305f\u76f4\u5217\u7d4c\u8def\u306e\u3044\u305a\u308c\u3092\u906e\u65ad\u3059\u308b\u3053\u3068\u3092\u610f\u56f3\u3057\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30b7\u30b9\u30c6\u30e0\u306e\u63a5\u5730\u72b6\u6cc1\u3084\u6545\u969c\u30b7\u30ca\u30ea\u30aa\u306f\u3001\u305d\u306e\u5224\u65ad\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\u3002\u63a5\u5730\u3055\u308c\u305f\u5c0e\u4f53\u914d\u7f6e\u306b\u3064\u3044\u3066\u306f\u3001\u7d76\u7e01\u30b7\u30b9\u30c6\u30e0\u3068\u306f\u7570\u306a\u308b\u89b3\u70b9\u304b\u3089\u691c\u8a0e\u3055\u308c\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u6280\u8853\u8005\u306f\u3001\u95a2\u9023\u3059\u308b\u8a2d\u7f6e\u898f\u5247\u304a\u3088\u3073\u6545\u969c\u89e3\u6790\u3092\u9069\u7528\u3057\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002.<\/p>\n

\u5b9a\u683c\u76f4\u6d41\u96fb\u5727\u3092\u6b63\u78ba\u306b\u6bd4\u8f03\u3059\u308b<\/h2>\n

DC arcs do not have the natural current zero crossings of AC. Product-specific pole arrangements may therefore be used to manage interruption at higher DC voltages. Schneider Electric’s DC breaker guides show that voltage limits can depend on series-pole connections and system topology. Those examples are for Schneider products, not a universal conversion formula.<\/p>\n

Obtain the maximum operating voltage at the installation point, including charging or other high-voltage states. Compare it with the candidate’s rated DC operational voltage for the exact number of poles and connection drawing. Do not use a headline voltage from a four-pole variant to approve a two-pole variant, or vice versa.<\/p>\n

If a supplier proposes extra poles in series, request the diagram showing terminal order, polarity and links. The higher voltage claim must be explicitly documented for that exact arrangement. A user-created series bridge based on a competitor’s drawing is not evidence that the new breaker will interrupt correctly.<\/p>\n

\"2\u6975\u304a\u3088\u30734\u6975\u76f4\u6d41\u906e\u65ad\u5668\u306e\u5c0e\u4f53\u304a\u3088\u3073\u76f4\u5217\u6975\u7d4c\u8def\u56f3\"
\u6975\u6570\u306e\u7b97\u51fa\u7d50\u679c\u306f\u3001\u6587\u66f8\u5316\u3055\u308c\u305f\u5c0e\u4f53\u304a\u3088\u3073\u76f4\u5217\u6975\u7d4c\u8def\u306b\u53cd\u6620\u3055\u308c\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002.<\/figcaption><\/figure>\n

\u540c\u3058\u96fb\u5727\u57fa\u6e96\u306b\u304a\u3051\u308b\u60f3\u5b9a\u6545\u969c\u96fb\u6d41\u3092\u78ba\u8a8d\u3059\u308b<\/h2>\n

A breaker must interrupt the fault available at its terminals. Provide the location-specific prospective DC fault current, not only the source’s nominal current. Batteries, converters, parallel strings and other feeds may change the duty. Compare the result with the exact candidate’s published DC breaking capacity at the relevant voltage and pole connection.<\/p>\n

The current rating and breaking capacity are different specifications. More poles do not automatically create a higher fault-current rating, and a product’s AC interrupting data cannot stand in for DC data. Ask the supplier to identify the rating table and test conditions that support the proposed connection.<\/p>\n

\u96fb\u6e90\u306e\u5bc4\u4e0e\u5ea6\u3084\u63a5\u5730\u306b\u95a2\u3059\u308b\u4eee\u5b9a\u306f\u3001\u5e38\u306b\u660e\u793a\u3057\u3066\u304a\u304f\u3053\u3068\u3002\u6545\u969c\u89e3\u6790\u304c\u5b8c\u4e86\u3057\u3066\u3044\u306a\u3044\u5834\u5408\u306f\u3001\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u6bd4\u8f03\u7d50\u679c\u3092\u300c\u66ab\u5b9a\u300d\u3067\u3042\u308b\u65e8\u3092\u660e\u8a18\u3059\u308b\u3053\u3068\u3002\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u90e8\u9580\u304c\u5229\u7528\u53ef\u80fd\u6545\u969c\u96fb\u6d41\u306e\u7b97\u51fa\u3092\u5b8c\u4e86\u3055\u305b\u308b\u9593\u3001\u8abf\u9054\u90e8\u9580\u306f\u5019\u88dc\u3068\u306a\u308b\u8cc7\u6599\u306e\u9078\u5b9a\u3092\u9032\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002.<\/p>\n

\u73fe\u5728\u306e\u65b9\u5411\u3068\u6975\u6027\u306e\u898f\u5247\u3092\u78ba\u8a8d\u3059\u308b<\/h2>\n

\u4e00\u90e8\u306e\u76f4\u6d41\u4fdd\u8b77\u88c5\u7f6e\u306b\u306f\u3001\u96fb\u6e90\uff0f\u8ca0\u8377\u3001\u3042\u308b\u3044\u306f\u30d7\u30e9\u30b9\uff0f\u30de\u30a4\u30ca\u30b9\u306e\u6975\u6027\u306b\u95a2\u3059\u308b\u8981\u4ef6\u304c\u3042\u308a\u307e\u3059\u3002\u30d0\u30c3\u30c6\u30ea\u30fc\u306e\u5145\u96fb\u30fb\u653e\u96fb\u3092\u884c\u3046\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001\u901a\u5e38\u96fb\u6d41\u304c\u8907\u6570\u306e\u65b9\u5411\u306b\u6d41\u308c\u308b\u5834\u5408\u304c\u3042\u308a\u3001\u6545\u969c\u96fb\u6d41\u306f\u3055\u3089\u306b\u5225\u306e\u7d4c\u8def\u3092\u305f\u3069\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u30024\u6975\u69cb\u9020\u306e\u7b50\u4f53\u3067\u3042\u3063\u3066\u3082\u3001\u6975\u6027\u8868\u793a\u3084\u8a2d\u7f6e\u624b\u9806\u3092\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u6027\u306f\u5909\u308f\u308a\u307e\u305b\u3093\u3002.<\/p>\n

\u5404\u904b\u8ee2\u72b6\u614b\u304a\u3088\u3073\u6545\u969c\u72b6\u614b\u306b\u3064\u3044\u3066\u3001\u3069\u306e\u7aef\u5b50\u304c\u901a\u96fb\u3057\u3066\u3044\u308b\u304b\u3001\u307e\u305f\u96fb\u6d41\u304c\u3069\u306e\u3088\u3046\u306b\u88c5\u7f6e\u306b\u5230\u9054\u3059\u308b\u304b\u3092\u793a\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u305d\u308c\u3092\u30e1\u30fc\u30ab\u30fc\u306e\u6b63\u78ba\u306a\u56f3\u9762\u3068\u7167\u5408\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u63d0\u6848\u3055\u308c\u3066\u3044\u308b\u906e\u65ad\u5668\u304c\u300c\u975e\u6975\u6027\u300d\u3068\u8a18\u8f09\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u6240\u5b9a\u306e\u96fb\u5727\u304a\u3088\u3073\u906e\u65ad\u30c7\u30e5\u30fc\u30c6\u30a3\u306b\u304a\u3044\u3066\u3001\u305d\u306e\u8a18\u8ff0\u304c\u9069\u7528\u3055\u308c\u308b\u7bc4\u56f2\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u308c\u3092\u7121\u5236\u9650\u306e\u53cc\u65b9\u5411\u52d5\u4f5c\u80fd\u529b\u3068\u89e3\u91c8\u3057\u3066\u306f\u306a\u308a\u307e\u305b\u3093\u3002.<\/p>\n

\u56f3\u9762\u306b\u4e0d\u660e\u78ba\u306a\u70b9\u304c\u3042\u308b\u5834\u5408\u306f\u3001\u6ce8\u6587\u30b3\u30fc\u30c9\u3092\u660e\u8a18\u3057\u305f\u4e0a\u3067\u3001\u30b5\u30d7\u30e9\u30a4\u30e4\u30fc\u306b\u66f8\u9762\u306b\u3088\u308b\u8aac\u660e\u3092\u6c42\u3081\u3066\u304f\u3060\u3055\u3044\u3002\u66d6\u6627\u306a\u8868\u8a18\u306b\u3064\u3044\u3066\u306f\u3001\u8a66\u884c\u7684\u306a\u914d\u7dda\u306b\u3088\u3063\u3066\u89e3\u6c7a\u3057\u3088\u3046\u3068\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002\u5411\u304d\u304c\u9593\u9055\u3063\u3066\u3044\u3066\u3082\u3001\u901a\u5e38\u306e\u52d5\u4f5c\u4e2d\u306f\u6c17\u3065\u304b\u306a\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u6545\u969c\u6642\u306e\u906e\u65ad\u6642\u306b\u306f\u554f\u984c\u3068\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n

\u9694\u96e2\u3084\u7dad\u6301\u7ba1\u7406\u306e\u5fc5\u8981\u6027\u306b\u3064\u3044\u3066\u691c\u8a0e\u3059\u308b<\/h2>\n

\u4e88\u5b9a\u3055\u308c\u3066\u3044\u308b\u4fdd\u5b88\u4f5c\u696d\u307e\u305f\u306f\u9694\u96e2\u4f5c\u696d\u306e\u305f\u3081\u306b\u3001\u3069\u306e\u5c0e\u4f53\u3092\u5207\u65ad\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u304b\u3092\u660e\u8a18\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u4fdd\u8b77\u7528\u30d6\u30ec\u30fc\u30ab\u30fc\u3068\u30b9\u30a4\u30c3\u30c1\u30fb\u30c7\u30a3\u30b9\u30b3\u30cd\u30af\u30bf\u30fc\u3067\u306f\u3001\u8a8d\u53ef\u3055\u308c\u305f\u6a5f\u80fd\u304c\u7570\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u5bfe\u8c61\u3068\u306a\u308b\u6a5f\u5668\u304c\u3001\u610f\u56f3\u3059\u308b\u9694\u96e2\u6a5f\u80fd\u306b\u5bfe\u5fdc\u3059\u308b\u5b9a\u683c\u3092\u5099\u3048\u3066\u3044\u308b\u304b\u3001\u307e\u305f\u63d0\u6848\u3055\u308c\u305f\u6975\u914d\u7f6e\u306b\u304a\u3044\u3066\u958b\u8def\u5f8c\u306b\u3069\u306e\u90e8\u5206\u304c\u901a\u96fb\u3057\u305f\u307e\u307e\u306b\u306a\u308b\u304b\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n

\u30d1\u30cd\u30eb\u88fd\u9020\u696d\u8005\u306f\u3001\u88c5\u7f6e\u306e\u4e21\u9762\u306b\u30e9\u30d9\u30eb\u3092\u8cbc\u308a\u3001\u5b9f\u8a2d\u56f3\u9762\u4e0a\u3067\u63a5\u7d9a\u95a2\u4fc2\u3092\u660e\u78ba\u306b\u793a\u3059\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u6975\u6027\u3054\u3068\u306b2\u672c\u306e\u5c0e\u4f53\u304c\u76f4\u5217\u306b\u63a5\u7d9a\u3055\u308c\u305f4\u6975\u306e\u88c5\u7f6e\u3068\u30014\u672c\u306e\u72ec\u7acb\u3057\u305f\u5c0e\u4f53\u3068\u306f\u3001\u4fdd\u5b88\u4e0a\u306e\u72b6\u6cc1\u304c\u7570\u306a\u308a\u307e\u3059\u3002\u7b50\u4f53\u304a\u3088\u3073\u30ed\u30c3\u30af\u30a2\u30a6\u30c8\u624b\u9806\u306f\u3001\u5b9f\u969b\u306e\u30c8\u30dd\u30ed\u30b8\u30fc\u3092\u53cd\u6620\u3057\u305f\u3082\u306e\u3067\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002.<\/p>\n

2\u6975\u578b\u30684\u6975\u578b\u306e\u5019\u88dc\u3092\u516c\u5e73\u306b\u6bd4\u8f03\u3059\u308b<\/h2>\n
\u6c7a\u5b9a<\/th>\u8cdb\u5426\u4e21\u8ad6\u306e\u30ec\u30d3\u30e5\u30fc<\/th>4\u6975\u30ec\u30d3\u30e5\u30fc<\/th><\/tr><\/thead>
\u63a5\u7d9a<\/td>\u5404\u6975\u306b\u306f\u3069\u306e\u5c0e\u4f53\uff0f\u7d4c\u8def\u304c\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u304b\uff1f<\/td>\u30dd\u30fc\u30eb\u306f\u76f4\u5217\u306b\u63a5\u7d9a\u3055\u308c\u3066\u3044\u307e\u3059\u304b\u3001\u305d\u308c\u3068\u3082\u5225\u3005\u306e\u7d4c\u8def\u306b\u3042\u308a\u307e\u3059\u304b\uff1f<\/td><\/tr>
\u76f4\u6d41\u96fb\u5727<\/td>\u6b63\u78ba\u306a\u914d\u7dda\u914d\u7f6e\u306b\u304a\u3051\u308b\u5b9a\u683c<\/td>\u6b63\u78ba\u306a\u914d\u7dda\u914d\u7f6e\u306b\u304a\u3051\u308b\u5b9a\u683c<\/td><\/tr>
\u6545\u969c\u5bfe\u5fdc<\/td>\u305d\u306e\u96fb\u5727\u306b\u304a\u3051\u308b\u76f4\u6d41\u906e\u65ad\u30c7\u30fc\u30bf<\/td>\u305d\u306e\u96fb\u5727\u306b\u304a\u3051\u308b\u76f4\u6d41\u906e\u65ad\u30c7\u30fc\u30bf<\/td><\/tr>
\u65b9\u5411<\/td>\u7aef\u5b50\u304a\u3088\u3073\u6975\u6027\u306e\u53d6\u308a\u6271\u3044\u306b\u95a2\u3059\u308b\u6ce8\u610f\u4e8b\u9805<\/td>\u7aef\u5b50\u304a\u3088\u3073\u6975\u6027\u306e\u53d6\u308a\u6271\u3044\u306b\u95a2\u3059\u308b\u6ce8\u610f\u4e8b\u9805<\/td><\/tr>
\u9694\u96e2<\/td>\u3069\u306e\u5c0e\u4f53\u304c\u958b\u304f\u306e\u3067\u3057\u3087\u3046\u304b\uff1f<\/td>\u3069\u306e\u5c0e\u4f53\u304c\u958b\u304f\u306e\u3067\u3057\u3087\u3046\u304b\uff1f<\/td><\/tr><\/tbody><\/table><\/figure>\n

\u8868\u306b\u300c2P\u300d\u3084\u300c4P\u300d\u3068\u3044\u3063\u305f\u4e00\u822c\u7684\u306a\u4eee\u5b9a\u3092\u8a18\u5165\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002\u6ce8\u6587\u30b3\u30fc\u30c9\u3068\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306e\u6539\u8a02\u7248\u756a\u53f7\u3092\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u5019\u88dc\u3068\u306a\u308b\u88fd\u54c1\u304c\u7570\u306a\u308b\u63a5\u7d9a\u30c8\u30dd\u30ed\u30b8\u30fc\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u4e00\u65b9\u3092\u300c\u305d\u306e\u307e\u307e\u7f6e\u304d\u63db\u3048\u53ef\u80fd\u306a\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u300d\u3068\u3057\u3066\u63d0\u793a\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u305d\u306e\u70b9\u3092\u660e\u78ba\u306b\u8aac\u660e\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n

\"2\u6975\u304a\u3088\u30734\u6975\u306e\u76f4\u6d41\u96fb\u5727\u3001\u906e\u65ad\u5bb9\u91cf\u3001\u304a\u3088\u3073\u7d76\u7e01\u306b\u95a2\u3059\u308b\u30a8\u30d3\u30c7\u30f3\u30b9\u30de\u30c8\u30ea\u30c3\u30af\u30b9\"
\u96fb\u6975\u306e\u6570\u3060\u3051\u3092\u898b\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u6b63\u78ba\u306a\u30e2\u30c7\u30eb\u306e\u96fb\u5727\u30c7\u30fc\u30bf\u3068\u906e\u65ad\u306e\u8a3c\u62e0\u3092\u6bd4\u8f03\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/figcaption><\/figure>\n

\u30b9\u30da\u30fc\u30b9\u3001\u71b1\u3001\u304a\u3088\u3073\u914d\u7dda\u3078\u306e\u5f71\u97ff<\/h2>\n

4\u6975\u306e\u88fd\u54c1\u306f\u4e00\u822c\u7684\u306b\u7269\u7406\u7684\u306a\u5e45\u304c\u5e83\u304f\u306a\u308a\u3001\u30ea\u30f3\u30af\u3084\u5c0e\u4f53\u306e\u914d\u7dda\u3082\u3088\u308a\u591a\u304f\u5fc5\u8981\u3068\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u5b9f\u969b\u306e\u5bf8\u6cd5\u306b\u3064\u3044\u3066\u306f\u88fd\u54c1\u56f3\u9762\u3092\u3054\u53c2\u7167\u304f\u3060\u3055\u3044\u3002\u96fb\u6d41\u7d4c\u8def\u306e\u8981\u7d20\u304c\u5897\u3048\u308b\u3068\u653e\u71b1\u7279\u6027\u3082\u5909\u5316\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u305f\u3081\u3001\u30e1\u30fc\u30ab\u30fc\u304b\u3089\u5177\u4f53\u7684\u306a\u30c7\u30a3\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u3084\u8a2d\u7f6e\u8981\u4ef6\u304c\u63d0\u793a\u3055\u308c\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u7b50\u4f53\u6e29\u5ea6\u3001\u96a3\u63a5\u3059\u308b\u30c7\u30d0\u30a4\u30b9\u3001\u30d0\u30b9\u30d0\u30fc\u3084\u30b1\u30fc\u30d6\u30eb\u306e\u7d42\u7aef\u30b9\u30da\u30fc\u30b9\u3001\u304a\u3088\u3073\u53d6\u308a\u4ed8\u3051\u65b9\u5411\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n

\u6587\u66f8\u306b\u8a18\u8f09\u3055\u308c\u305f\u76f4\u6d41\u96fb\u5727\u3084\u63a5\u7d9a\u8ca0\u8377\u304c\u4e0d\u5341\u5206\u306a\u5834\u5408\u3001\u5358\u306b\u30ec\u30fc\u30eb\u30b9\u30da\u30fc\u30b9\u3092\u7bc0\u7d04\u3059\u308b\u3068\u3044\u3046\u7406\u7531\u3060\u3051\u3067\u3001\u30b3\u30f3\u30d1\u30af\u30c8\u306a2\u6975\u5f0f\u306e\u63d0\u6848\u3092\u9078\u5b9a\u3059\u3079\u304d\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u540c\u69d8\u306b\u3001\u914d\u7dda\u3084\u767a\u71b1\u306e\u5f71\u97ff\u3092\u78ba\u8a8d\u305b\u305a\u306b\u3001\u3088\u308a\u5927\u578b\u306e4\u6975\u5f0f\u30e6\u30cb\u30c3\u30c8\u3092\u63a1\u7528\u3059\u3079\u304d\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u6700\u9069\u306a\u9078\u629e\u3068\u306f\u3001\u6b63\u3057\u304f\u8a2d\u7f6e\u30fb\u4fdd\u5b88\u3067\u304d\u308b\u3001\u627f\u8a8d\u6e08\u307f\u306e\u96fb\u6c17\u7684\u7d4c\u8def\u306e\u3053\u3068\u3067\u3059\u3002.<\/p>\n

\u8a55\u4fa1\u306e\u6839\u62e0\u3068\u306a\u308b\u3059\u3079\u3066\u306e\u60c5\u5831\u6e90\u3092\u8a18\u9332\u3059\u308b<\/h2>\n

\u4fe1\u983c\u6027\u306e\u3042\u308b\u6bd4\u8f03\u3092\u884c\u3046\u306b\u306f\u3001\u6b63\u78ba\u306a\u30c7\u30fc\u30bf\u30b7\u30fc\u30c8\u540d\u3001\u305d\u306e\u6539\u8a02\u7248\u3001DC\u5b9a\u683c\u8868\u304c\u63b2\u8f09\u3055\u308c\u3066\u3044\u308b\u30da\u30fc\u30b8\u3001\u304a\u3088\u3073\u5bfe\u5fdc\u3059\u308b\u7aef\u5b50\u7d4c\u8def\u3092\u793a\u3059\u8a2d\u7f6e\u56f3\u3092\u660e\u8a18\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u66f8\u985e\u306f\u307e\u3068\u3081\u3066\u4fdd\u7ba1\u3057\u3066\u304f\u3060\u3055\u3044\u3002 \u63a5\u7d9a\u56f3\u306e\u306a\u3044\u5b9a\u683c\u8868\u3001\u3042\u308b\u3044\u306f\u906e\u65ad\u5bb9\u91cf\u306e\u6761\u4ef6\u304c\u8a18\u8f09\u3055\u308c\u3066\u3044\u306a\u3044\u63a5\u7d9a\u56f3\u3067\u306f\u3001\u91cd\u8981\u306a\u60c5\u5831\u304c\u6b20\u843d\u3057\u3066\u3057\u307e\u3044\u307e\u3059\u3002\u8cfc\u5165\u8005\u306f\u3001\u5404\u30da\u30fc\u30b8\u304c\u3069\u306e\u6ce8\u6587\u30b3\u30fc\u30c9\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u304b\u3092\u3001\u30b5\u30d7\u30e9\u30a4\u30e4\u30fc\u306b\u78ba\u8a8d\u3059\u308b\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n

\u8a18\u8f09\u3055\u308c\u305f\u6a5f\u5668\u306b\u8907\u6570\u306e\u96fb\u5727\u304c\u6319\u3052\u3089\u308c\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u305d\u308c\u3089\u304c\u7570\u306a\u308b\u6975\u6570\u3001\u76f4\u5217\u7d4c\u8def\u3001\u63a5\u5730\u65b9\u5f0f\u3001\u3042\u308b\u3044\u306f\u8a66\u9a13\u6761\u4ef6\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u5224\u65ad\u3057\u3066\u304f\u3060\u3055\u3044\u3002 \u6700\u3082\u6709\u5229\u306a\u5024\u3092\u307e\u3068\u3081\u3066\u8907\u5408\u4ed5\u69d8\u3068\u3057\u3066\u63d0\u793a\u3057\u3066\u306f\u306a\u308a\u307e\u305b\u3093\u3002\u307e\u305f\u3001\u6bd4\u8f03\u306e\u969b\u306b\u306f\u3001\u8a66\u9a13\u5bfe\u8c61\u306e\u69cb\u6210\u3092\u5b9f\u73fe\u3059\u308b\u305f\u3081\u306b\u5fc5\u8981\u306a\u4ed8\u5c5e\u54c1\u3084\u5de5\u5834\u51fa\u8377\u6642\u306e\u63a5\u7d9a\u306b\u3064\u3044\u3066\u3082\u660e\u8a18\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u7279\u5225\u306a\u63a5\u7d9a\u3001\u3088\u308a\u5927\u304d\u306a\u7b50\u4f53\u3001\u307e\u305f\u306f\u8ffd\u52a0\u306e\u914d\u7dda\u304c\u5fc5\u8981\u306a\u5834\u5408\u3001\u5358\u4fa1\u304c\u5b89\u304f\u3066\u3082\u8aa4\u89e3\u3092\u62db\u304f\u6050\u308c\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n

\u8a2d\u8a08\u30ec\u30d3\u30e5\u30fc\u306e\u969b\u306b\u306f\u3001\u88fd\u56f3\u62c5\u5f53\u8005\u4ee5\u5916\u306e\u8005\u306b\u3001\u4e21\u65b9\u306e\u56f3\u9762\u4e0a\u3067\u73fe\u5728\u306e\u914d\u7dda\u7d4c\u8def\u3092\u30c8\u30ec\u30fc\u30b9\u3057\u3066\u3082\u3089\u3046\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u306e\u72ec\u7acb\u3057\u305f\u30c1\u30a7\u30c3\u30af\u3092\u884c\u3046\u3053\u3068\u3067\u3001\u7d44\u7acb\u524d\u306b\u3001\u6b20\u843d\u3057\u3066\u3044\u308b\u30d6\u30ea\u30c3\u30b8\u3084\u3001\u8aa4\u3063\u305f\u7aef\u5b50\u306b\u914d\u7f6e\u3055\u308c\u305f\u5c0e\u4f53\u306a\u3069\u3092\u767a\u898b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u305d\u306e\u7d50\u679c\u306f\u3001\u96fb\u5727\u304a\u3088\u3073\u6545\u969c\u96fb\u6d41\u306e\u8a08\u7b97\u3068\u306f\u5225\u306b\u3001\u30c8\u30dd\u30ed\u30b8\u30fc\u30c1\u30a7\u30c3\u30af\u3068\u3057\u3066\u8a18\u9332\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n

\u6bd4\u8f03\u898b\u7a4d\u4f9d\u983c\uff08RFQ\uff09\u306b\u306f\u4f55\u3092\u8a18\u8f09\u3059\u3079\u304d\u304b<\/h2>\n

\u30b7\u30b9\u30c6\u30e0\u306b\u3064\u3044\u3066\u3001\u5358\u7dda\u56f3\u3001\u96fb\u5727\u30a8\u30f3\u30d9\u30ed\u30fc\u30d7\u3001\u63a5\u5730\u914d\u7f6e\u3001\u6545\u969c\u96fb\u6d41\u306e\u7b97\u51fa\u7d50\u679c\u3001\u4e88\u60f3\u3055\u308c\u308b\u96fb\u6d41\u306e\u65b9\u5411\u3001\u906e\u65ad\u3059\u3079\u304d\u5c0e\u4f53\u3001\u304a\u3088\u3073\u76e4\u5185\u30b9\u30da\u30fc\u30b9\u306e\u5236\u9650\u3092\u9001\u4ed8\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30b5\u30d7\u30e9\u30a4\u30e4\u30fc\u306b\u5bfe\u3057\u3001\u6b63\u78ba\u306a2\u6975\u304a\u3088\u30734\u6975\u306e\u6ce8\u6587\u30b3\u30fc\u30c9\u3001\u76f4\u6d41\u5b9a\u683c\u8868\u3001\u914d\u7dda\u56f3\u3001\u6975\u6027\u306b\u95a2\u3059\u308b\u6307\u793a\u3001\u906e\u65ad\u30c7\u30fc\u30bf\u3001\u304a\u3088\u3073\u8a2d\u7f6e\u8981\u4ef6\u3092\u554f\u3044\u5408\u308f\u305b\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n

\u305d\u306e DC\u7528MCB\u306e\u30ab\u30c6\u30b4\u30ea<\/a> \u5546\u696d\u7684\u306a\u80cc\u666f\u3092\u8aac\u660e\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e 2\u6975\u76f4\u6d41MCB\u30b7\u30ea\u30fc\u30ba<\/a> \u305d\u3057\u3066 \u5927\u96fb\u6d41\u5bfe\u5fdcDC\u7528MCB\u30b7\u30ea\u30fc\u30ba<\/a> \u3053\u308c\u3089\u306f\u51fa\u767a\u70b9\u306b\u904e\u304e\u305a\u3001\u7279\u5b9a\u306e4\u6975\u306e\u4ee3\u66ff\u6848\u304c\u5b58\u5728\u3059\u308b\u3053\u3068\u3084\u3001\u305d\u306e\u3044\u305a\u308c\u304b\u304c\u5f53\u8a72\u7528\u9014\u306b\u9069\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u793a\u3059\u8a3c\u62e0\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002.<\/p>\n

\u4f7f\u7528\u65b9\u6cd5 RITOKS\u3078\u306e\u304a\u554f\u3044\u5408\u308f\u305b<\/a> \u6a5f\u7a2e\u5225\u306e\u8cc7\u6599\u3092\u8acb\u6c42\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u63d0\u6848\u3055\u308c\u305f\u30dd\u30fc\u30eb\u6570\u304c\u30d1\u30cd\u30eb\u306e\u56f3\u9762\u306b\u5909\u66f4\u3092\u3082\u305f\u3089\u3059\u5834\u5408\u306f\u3001\u767a\u6ce8\u524d\u306b\u305d\u306e\u9078\u629e\u5185\u5bb9\u3092\u6280\u8853\u90e8\u9580\u306b\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u6700\u7d42\u7684\u306a\u63a5\u7d9a\u56f3\u306f\u3001\u691c\u67fb\u3084\u5c06\u6765\u306e\u4ea4\u63db\u306b\u5099\u3048\u3066\u3001\u90e8\u54c1\u8868\u3068\u4e00\u7dd2\u306b\u4fdd\u7ba1\u3057\u3066\u304a\u3044\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n

\u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>\n

4\u6975\u306e\u76f4\u6d41\u30d6\u30ec\u30fc\u30ab\u30fc\u306f\u3001\u5e38\u306b\u512a\u308c\u3066\u3044\u308b\u306e\u3067\u3057\u3087\u3046\u304b\uff1f<\/h3>\n

\u3044\u3044\u3048\u3002\u30e1\u30fc\u30ab\u30fc\u304c\u627f\u8a8d\u3057\u305f\u5225\u306e\u63a5\u7d9a\u307e\u305f\u306f\u5207\u65ad\u306e\u76ee\u7684\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u53ef\u80fd\u6027\u306f\u3042\u308a\u307e\u3059\u304c\u3001\u305d\u306e\u9069\u5408\u6027\u306f\u3001\u5177\u4f53\u7684\u306a\u96fb\u5727\u3001\u6545\u969c\u6642\u306e\u52d5\u4f5c\u6642\u9593\u3001\u914d\u7dda\u3001\u304a\u3088\u3073\u30b7\u30b9\u30c6\u30e0\u8a2d\u8a08\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059\u3002.<\/p>\n

\u300c2\u6975\u300d\u3068\u306f\u3001\u4e21\u6975\u6027\u304c\u4fdd\u8b77\u3055\u308c\u3066\u3044\u308b\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u304b\uff1f<\/h3>\n

\u5fc5\u305a\u3057\u3082\u305d\u3046\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002\u6587\u66f8\u5316\u3055\u308c\u305f\u69cb\u6210\u3067\u306f\u3001\u3042\u308b\u7d4c\u8def\u306b\u304a\u3044\u3066\u6975\u304c\u76f4\u5217\u306b\u914d\u7dda\u3055\u308c\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u5177\u4f53\u7684\u306a\u56de\u8def\u56f3\u3092\u78ba\u8a8d\u3057\u3001\u5b9f\u969b\u306b\u65ad\u7dda\u3057\u3066\u3044\u308b\u5c0e\u4f53\u3092\u7279\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n

\u5b9a\u683c\u3092\u9ad8\u304f\u3059\u308b\u305f\u3081\u306b\u3001\u73fe\u5834\u3067\u6975\u9593\u3092\u67b6\u6a4b\u3059\u308b\u3053\u3068\u306f\u53ef\u80fd\u3067\u3059\u304b\uff1f<\/h3>\n

\u88fd\u9020\u5143\u306e\u516c\u5f0f\u6587\u66f8\u306b\u304a\u3044\u3066\u3001\u305d\u306e\u63a5\u7d9a\u304c\u660e\u78ba\u306b\u8a31\u53ef\u3055\u308c\u3066\u304a\u308a\u3001\u5fc5\u8981\u306a\u63a5\u7d9a\u7b87\u6240\u304c\u7279\u5b9a\u3055\u308c\u3001\u305d\u306e\u7d50\u679c\u3068\u3057\u3066\u306e\u5b9a\u683c\u304c\u660e\u8a18\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u306b\u9650\u308a\u307e\u3059\u3002\u4ed6\u306e\u88fd\u54c1\u304b\u3089\u63a8\u6e2c\u3057\u3066\u63a5\u7d9a\u3057\u3066\u306f\u3044\u3051\u307e\u305b\u3093\u3002.<\/p>\n

\u7d50\u8ad6\u3068\u3057\u3066<\/h2>\n

Choose a DC breaker pole arrangement by mapping the system conductors and fault paths to the manufacturer’s exact connection diagram. Then verify voltage, DC breaking capacity, polarity and isolation requirements for that arrangement. Pole count is a starting question, not a rating.<\/p>\n

\u53c2\u8003\u6587\u732e<\/h2>\n