BS 5308 Instrument Cable Series | \u4eea\u8868\u63a7\u5236\u7535\u7f06 Type 1 \/ Type 2 \u5de5\u7a0b\u6307\u5357 | Feichun Cable \u98de\u7eaf\u7535\u7f06<\/title>\n<meta name=\"description\" content=\"\u98de\u7eaf\u7535\u7f06 BS 5308 Instrument Cable Series \u4e2d\u6587\u5de5\u7a0b\u6307\u5357\uff1aBS5308\/PAS5308 \u64a4\u9500\u72b6\u6001\u3001BS EN 50288-7\u3001Part 1\/Part 2\u3001Type 1\/Type 2\u3001CAM\/ICAM\u3001PE\/PVC\/XLPE\/LSZH\u3001SWA\u30014-20mA\u3001HART\u3001\u672c\u5b89\u3001EMC\u3001\u7535\u5bb9\u4e0e\u56de\u8def\u538b\u964d\u3001\u6d77\u6e2f\u77ff\u5c71\u4eea\u8868\u7535\u7f06\u9009\u578b\u3002\">\n<meta name=\"keywords\" content=\"BS 5308 cable, BS5308 instrument cable, PAS 5308, BS EN 50288-7, instrumentation cable, Type 1 Type 2, CAM ICAM, individually screened pair cable, SWA instrumentation cable, 300\/500V instrument cable, intrinsic safety cable, \u98de\u7eaf\u7535\u7f06\">\n<meta name=\"robots\" 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ol{columns:2}.two{grid-template-columns:1fr}}@media(max-width:800px){h1{font-size:32px}.toc ol{columns:1}.contact,.footer-grid{grid-template-columns:1fr}.hero{padding-top:50px}.wrap{padding:0 16px}table{min-width:1040px}}\n<\/style><\/head><body>\n\n<header class=\"hero\"><div class=\"wrap\">\n<div class=\"eyebrow\">Feichun Cable \u98de\u7eaf\u7535\u7f06 \u00b7 Instrumentation \/ control \/ signal cable engineering \u00b7 port \/ mining \/ process plant<\/div>\n<h1>BS 5308 Instrument Cable Series\uff1a\u4ece Legacy BS\/PAS 5308 \u5230 BS EN 50288-7 \u7684\u4eea\u8868\u7535\u7f06\u7ed3\u6784\u3001\u5c4f\u853d\u3001\u7535\u5bb9\u3001\u672c\u5b89\u4e0e\u5de5\u7a0b\u9009\u578b<\/h1>\n<p class=\"lead\">\u9762\u5411 DCS\u3001PLC\u3001SIS\/ESD\u30014\u201320 mA\u3001HART\u3001RTD\u3001\u538b\u529b\/\u6d41\u91cf\/\u6db2\u4f4d\u53d8\u9001\u5668\u548c\u6e2f\u53e3\u77ff\u5c71\u73b0\u573a\u4eea\u8868\u7684\u6280\u672f\u6587\u7ae0\u3002\u91cd\u70b9\u89e3\u51b3 Part 1 \/ Part 2\u3001Type 1 \/ Type 2\u3001CAM \/ ICAM \u5230\u5e95\u5982\u4f55\u533a\u5206\uff0c\u4e3a\u4ec0\u4e48\u4f4e\u7535\u5bb9 PE \u7535\u7f06\u4e0e PVC \u7535\u7f06\u4e0d\u80fd\u53ea\u6309\u201c\u540c\u622a\u9762\u201d\u6bd4\u8f83\uff0c\u4ee5\u53ca\u672c\u5b89\u56de\u8def\u3001EMC\u3001\u957f\u8ddd\u79bb\u538b\u964d\u548c\u52a8\u6001\u8bbe\u5907\u4e0a\u7684\u771f\u5b9e\u8bbe\u8ba1\u8fb9\u754c\u3002<\/p>\n<div class=\"badges\"><span>BS 5308 legacy<\/span><span>PAS 5308 withdrawn 2024<\/span><span>BS EN 50288-7 Current \u00b7 Under Review<\/span><span>300\/500 V legacy route<\/span><span>CAM \/ ICAM<\/span><span>Type 1 unarmoured<\/span><span>Type 2 SWA<\/span><\/div>\n<div class=\"badges\" style=\"margin-top:12px\"><span>PE \/ PVC<\/span><span>XLPE \/ LSZH project variants<\/span><span>0.5\u20132.5 mm\u00b2 benchmark<\/span><span>Pairs \/ Triples \/ Quads<\/span><span>4\u201320 mA \/ HART<\/span><span>Intrinsic Safety engineering<\/span><\/div>\n<div class=\"badges\" style=\"margin-top:12px\"><span>ATEX project route<\/span><span>IECEx project route<\/span><span>VDE<\/span><span>CE<\/span><span>UKCA<\/span><span>EAC<\/span><span>Russian Fire Safety Certificate<\/span><\/div>\n<div class=\"meta\" style=\"margin-top:14px\"><span>\u4e2d\u6587\u5de5\u7a0b\u6587\u7ae0<\/span><span>\u53d1\u5e03\uff1a2026-08-06<\/span><span>5 \u5e45\u4e13\u4e1a SVG<\/span><span>\u516c\u5f00 benchmark + \u6d3e\u751f\u8ba1\u7b97<\/span><\/div>\n<\/div><\/header>\n\n<main class=\"wrap\">\n<nav class=\"toc\"><strong>\u6587\u7ae0\u5bfc\u822a<\/strong><ol>\n<li><a href=\"#answer\">BS 5308 \u4eca\u5929\u610f\u5473\u7740\u4ec0\u4e48<\/a><\/li><li><a href=\"#status\">\u6807\u51c6\u72b6\u6001<\/a><\/li><li><a href=\"#matrix\">Part \/ Type \u77e9\u9635<\/a><\/li>\n<li><a href=\"#construction\">\u5178\u578b\u7ed3\u6784<\/a><\/li><li><a href=\"#screen\">CAM vs ICAM<\/a><\/li><li><a href=\"#specs\">\u89c4\u683c\u4e0e\u7535\u6c14\u6570\u636e<\/a><\/li>\n<li><a href=\"#calc\">4\u201320mA \u957f\u8ddd\u79bb\u8ba1\u7b97<\/a><\/li><li><a href=\"#is\">\u672c\u5b89\u56de\u8def<\/a><\/li><li><a href=\"#grounding\">\u5c4f\u853d\u63a5\u5730<\/a><\/li>\n<li><a href=\"#compare\">PE vs PVC vs XLPE\/LSZH<\/a><\/li><li><a href=\"#port\">\u6e2f\u53e3\/\u77ff\u5c71\u5e94\u7528<\/a><\/li><li><a href=\"#dynamic\">\u98de\u7eaf\u52a8\u6001\u4eea\u8868\u7535\u7f06<\/a><\/li>\n<li><a href=\"#fire\">\u6d88\u9632\u4e0e\u8010\u706b<\/a><\/li><li><a href=\"#compliance\">\u8ba4\u8bc1\u4e0e\u6587\u4ef6<\/a><\/li><li><a href=\"#installation\">\u5b89\u88c5\u7aef\u63a5<\/a><\/li>\n<li><a href=\"#fmea\">\u5931\u6548\u6a21\u5f0f<\/a><\/li><li><a href=\"#faq\">FAQ<\/a><\/li><li><a href=\"#sources\">\u8d44\u6599\u6765\u6e90<\/a><\/li>\n<\/ol><\/nav>\n\n<section id=\"answer\"><h2>1. \u201cBS 5308 Instrument Cable\u201d\u4eca\u5929\u5e94\u8be5\u600e\u4e48\u7406\u89e3\uff1f<\/h2>\n<blockquote>BS 5308 \u4ecd\u7136\u662f\u56fd\u9645 EPC\u3001\u77f3\u5316\u3001\u6e2f\u53e3\u548c\u77ff\u5c71\u9879\u76ee\u91cc\u975e\u5e38\u5e38\u89c1\u7684\u4eea\u8868\u7535\u7f06\u641c\u7d22\u8bcd\uff0c\u4f46\u5b83\u5df2\u7ecf\u4e0d\u662f\u5f53\u524d\u82f1\u56fd\u65b0\u9879\u76ee\u7684\u73b0\u884c\u6807\u51c6\u53f7\u3002\u5386\u53f2 BS 5308 \u540e\u6765\u7531 PAS 5308 \u5ef6\u7eed\u8be6\u7ec6\u5c3a\u5bf8\u548c\u66f4\u9ad8\u5de5\u4f5c\u7535\u538b\u573a\u666f\uff1bPAS 5308-1:2009 \u4e0e PAS 5308-2:2009 \u53c8\u5728 2024 \u5e74 4 \u6708 3 \u65e5\u64a4\u9500\u3002\u5f53\u524d BSI \u628a BS EN 50288-7:2005 \u5217\u4e3a Current, Under Review\u3002<\/blockquote>\n<p>BS EN 50288-7 \u662f\u7528\u4e8e\u6a21\u62df\u548c\u6570\u5b57\u4fe1\u53f7\u7684 instrumentation and control multi-element cable \u5206\u89c4\u8303\uff0c\u53ef\u4ee5\u5e26\u5c4f\u853d\uff0c\u4e5f\u53ef\u4ee5\u9009\u62e9\u94e0\u88c5\u6216\u5176\u4ed6\u9632\u6f6e\/\u73af\u5883\u4fdd\u62a4\u5c42\uff0c\u5e76\u4e0e BS EN 50288-1 \u901a\u7528\u89c4\u8303\u914d\u5408\u4f7f\u7528\u3002<a href=\"https:\/\/knowledge.bsigroup.com\/products\/multi-element-metallic-cables-used-in-analogue-and-digital-communication-and-control-sectional-specification-for-instrumentation-and-control-cables\" target=\"_blank\" rel=\"nofollow noopener\">[BSI BS EN 50288-7]<\/a><\/p>\n<div class=\"cards\">\n<div class=\"card red\"><div class=\"value\">2024-04-03<\/div><div>PAS 5308-1 \u548c PAS 5308-2 \u7684 BSI \u64a4\u9500\u65e5\u671f\u3002<\/div><\/div>\n<div class=\"card\"><div class=\"value\">50288-7<\/div><div>\u5f53\u524d BSI \u7684 instrumentation\/control cable sectional specification\u3002<\/div><\/div>\n<div class=\"card gold\"><div class=\"value\">300\/500 V<\/div><div>PAS\/\u5e02\u573a BS5308 \u7ed3\u6784\u6700\u5e38\u89c1\u7684\u989d\u5b9a\u7535\u538b\u8868\u8fbe\u3002<\/div><\/div>\n<div class=\"card green\"><div class=\"value\">C + R + EMC<\/div><div>\u4eea\u8868\u7535\u7f06\u7684\u6838\u5fc3\u4e0d\u662f\u201c\u8f7d\u6d41\u91cf\u201d\uff0c\u800c\u662f\u4fe1\u53f7\u5b8c\u6574\u6027\u4e0e\u56de\u8def\u9884\u7b97\u3002<\/div><\/div>\n<\/div>\n<p class=\"note\"><strong>SEO \u4e0e\u6280\u672f\u517c\u5bb9\u5199\u6cd5\uff1a<\/strong>\u7f51\u9875\u6807\u9898\u53ef\u4ee5\u7ee7\u7eed\u5199 \u201cBS 5308 Instrument Cable \/ PAS 5308 replacement\u201d\uff0c\u56e0\u4e3a\u91c7\u8d2d\u548c\u65e7\u56fe\u7eb8\u4ecd\u5927\u91cf\u4f7f\u7528\u8be5\u540d\u79f0\uff1b\u6b63\u5f0f\u6280\u672f\u6587\u4ef6\u5219\u5e94\u6807\u660e current standard route\u3001construction drawing\u3001\u7535\u6c14\u53c2\u6570\u548c\u9879\u76ee\u7279\u5b9a\u8981\u6c42\u3002<\/p>\n<\/section>\n\n<section id=\"status\"><h2>2. BS 5308 \u2192 PAS 5308 \u2192 BS EN 50288-7\uff1a\u6807\u51c6\u6f14\u53d8<\/h2>\n<div class=\"scroll\"><table><caption>\u6807\u51c6\u72b6\u6001\u4e0e\u5de5\u7a0b\u7528\u9014<\/caption><thead><tr><th>\u6807\u51c6<\/th><th>\u72b6\u6001<\/th><th>\u8986\u76d6\u91cd\u70b9<\/th><th>\u4eca\u5929\u5982\u4f55\u4f7f\u7528<\/th><\/tr><\/thead><tbody>\n<tr><td class=\"key\">BS 5308-1 \/ -2<\/td><td>Withdrawn legacy<\/td><td>PE\/PVC \u4eea\u8868\u7535\u7f06\u7684\u5386\u53f2\u6784\u9020\u4e0e\u5c3a\u5bf8\u4f53\u7cfb<\/td><td>\u65e7\u56fe\u7eb8\u3001\u65e7 EPC \u89c4\u683c\u548c legacy replacement \u7684\u8bc6\u522b\u5173\u952e\u8bcd<\/td><\/tr>\n<tr><td class=\"key\">PAS 5308-1:2009<\/td><td>Withdrawn 03 Apr 2024<\/td><td>PE insulated multipair\uff0c\u5e26\/\u4e0d\u5e26\u5c4f\u853d\uff0c\u53ef\u9009 lead sheath \u4e0e single wire armour\uff1b\u4fdd\u7559 BS5308-1 \u7684\u8be6\u7ec6 constructional tables<\/td><td>\u4ecd\u53ef\u7528\u4e8e\u7406\u89e3\u5386\u53f2\u5c3a\u5bf8\u4e0e\u6027\u80fd\uff0c\u4f46\u4e0d\u5e94\u5199\u6210\u73b0\u884c\u6807\u51c6<\/td><\/tr>\n<tr><td class=\"key\">PAS 5308-2:2009<\/td><td>Withdrawn 03 Apr 2024<\/td><td>PVC insulated multicore\/multipair\uff1b300 V core-earth\u3001500 V core-core\uff1b\u53ef\u9009 screen \/ armour<\/td><td>legacy cross-reference<\/td><\/tr>\n<tr><td class=\"key\">BS EN 50288-7:2005<\/td><td>Current \u00b7 Under Review<\/td><td>\u6a21\u62df\/\u6570\u5b57 instrumentation & control multi-element cable\uff0cscreen\/armour\/environment layer \u53ef\u9009<\/td><td>\u65b0\u9879\u76ee\u7684 current sectional specification \u8def\u7ebf<\/td><\/tr>\n<tr><td class=\"key\">BS EN 50288-1:2013<\/td><td>Current<\/td><td>multi-element metallic cables \u7684 generic specification<\/td><td>\u4e0e 50288-7 \u914d\u5957\u9605\u8bfb<\/td><\/tr>\n<\/tbody><\/table><\/div>\n<p class=\"small\">\u5b98\u65b9\u9875\u9762\uff1a<a href=\"https:\/\/knowledge.bsigroup.com\/products\/control-and-instrumentation-cables-specification-for-polyethylene-insulated-cables\" target=\"_blank\" rel=\"nofollow noopener\">PAS 5308-1<\/a> \u00b7 <a href=\"https:\/\/knowledge.bsigroup.com\/products\/control-and-instrumentation-cables-specification-for-pvc-insulated-cables\" target=\"_blank\" rel=\"nofollow noopener\">PAS 5308-2<\/a> \u00b7 <a href=\"https:\/\/knowledge.bsigroup.com\/products\/multi-element-metallic-cables-used-in-analogue-and-digital-communication-and-control-sectional-specification-for-instrumentation-and-control-cables\" target=\"_blank\" rel=\"nofollow noopener\">BS EN 50288-7<\/a>\u3002<\/p>\n<\/section>\n\n<section id=\"matrix\"><h2>3. Part 1 \/ Part 2\u3001Type 1 \/ Type 2\uff1a\u56db\u4e2a\u57fa\u7840\u8c61\u9650<\/h2>\n<div class=\"scroll\"><table><caption>\u4f20\u7edf BS\/PAS 5308 \u5206\u7c7b\u903b\u8f91<\/caption><thead><tr><th>\u7cfb\u5217<\/th><th>\u57fa\u672c\u7edd\u7f18\u8def\u7ebf<\/th><th>\u673a\u68b0\u7ed3\u6784<\/th><th>\u5178\u578b\u5c4f\u853d<\/th><th>\u5178\u578b\u7528\u9014<\/th><\/tr><\/thead><tbody>\n<tr><td class=\"key\">Part 1 Type 1<\/td><td>\u5386\u53f2\u6838\u5fc3\uff1aPE insulated<\/td><td>Unarmoured<\/td><td>CAM \u6216 ICAM + tinned copper drain<\/td><td>\u63a7\u5236\u5ba4\u3001J-box\u3001\u4eea\u8868\u56fa\u5b9a\u4e92\u8fde<\/td><\/tr>\n<tr><td class=\"key\">Part 1 Type 2<\/td><td>\u5386\u53f2\u6838\u5fc3\uff1aPE insulated<\/td><td>SWA armoured<\/td><td>CAM \/ ICAM<\/td><td>\u9700\u8981\u989d\u5916\u673a\u68b0\u4fdd\u62a4\u7684\u77f3\u5316\u3001\u77ff\u5c71\u3001\u5ba4\u5916\/\u57cb\u5730\u4eea\u8868\u56de\u8def<\/td><\/tr>\n<tr><td class=\"key\">Part 2 Type 1<\/td><td>PVC insulated<\/td><td>Unarmoured<\/td><td>CAM \/ ICAM<\/td><td>\u666e\u901a\u5de5\u4e1a\u63a7\u5236\u4e0e\u76d1\u6d4b\u56fa\u5b9a\u4e92\u8fde<\/td><\/tr>\n<tr><td class=\"key\">Part 2 Type 2<\/td><td>PVC insulated<\/td><td>SWA armoured<\/td><td>CAM \/ ICAM<\/td><td>\u6709\u673a\u68b0\u635f\u4f24\u98ce\u9669\u7684\u56fa\u5b9a\u4eea\u8868\u56de\u8def<\/td><\/tr>\n<\/tbody><\/table><\/div>\n<p>\u73b0\u4ee3\u5e02\u573a\u4e2d\u8fd8\u5e38\u89c1 <strong>XLPE\/LSZH\u3001Mica+XLPE\/LSZH\u3001silicone\/LSZH<\/strong> \u7b49\u201cBS5308\/PAS5308-style\u201d\u884d\u751f\u4ea7\u54c1\u3002\u5b83\u4eec\u5bf9\u4f4e\u70df\u3001\u6e29\u5ea6\u6216\u8010\u706b\u6709\u660e\u663e\u4ef7\u503c\uff0c\u4f46\u5e94\u4f5c\u4e3a<strong>\u9879\u76ee\u7279\u5b9a\u6784\u9020<\/strong>\u53d1\u5e03\uff0c\u4e0d\u80fd\u7b80\u5355\u8bf4\u201cPAS 5308-1 \u672c\u8eab\u5c31\u662f XLPE \u6807\u51c6\u201d\u3002\u4f9b\u5e94\u5546\u516c\u5f00\u8d44\u6599\u4e5f\u660e\u786e\u533a\u5206\u5386\u53f2 PE\/PVC \u8def\u7ebf\u4e0e\u8fd9\u4e9b\u6269\u5c55\u6784\u9020\u3002<a href=\"https:\/\/www.elandcables.com\/cables\/bs5308-pas5308-part-1-type-1-cables\" target=\"_blank\" rel=\"nofollow noopener\">[\u516c\u5f00 construction reference]<\/a><\/p>\n<\/section>\n\n\n<div class=\"svg\"><svg viewBox=\"0 0 1900 1120\" role=\"img\" aria-label=\"BS 5308 ICAM Type 2 instrumentation cable cross section\">\n<defs><pattern id=\"cu\" width=\"15\" height=\"15\" patternUnits=\"userSpaceOnUse\"><circle cx=\"4\" cy=\"4\" r=\"3.2\" fill=\"#e89951\"\/><circle cx=\"11\" cy=\"6\" r=\"3\" fill=\"#9f542d\"\/><circle cx=\"7\" cy=\"12\" r=\"3\" fill=\"#f1c179\"\/><\/pattern><\/defs>\n<rect width=\"1900\" height=\"1120\" fill=\"#06131b\"\/><text x=\"60\" y=\"65\" fill=\"#55dff7\" font-family=\"Arial\" font-size=\"38\" font-weight=\"700\">BS 5308-style Part 1 Type 2 ICAM\uff1a\u4eea\u8868\u4fe1\u53f7\u7684\u201c\u7535\u6c14\u9694\u79bb + \u673a\u68b0\u4fdd\u62a4\u201d\u7ed3\u6784<\/text>\n<text x=\"60\" y=\"108\" fill=\"#adc4ce\" font-family=\"Arial\" font-size=\"20\">\u793a\u610f\uff1apair \/ individual Al-PET screen \/ drain wire \/ collective screen \/ bedding \/ SWA \/ outer sheath\u3002<\/text>\n<g transform=\"translate(575 575)\">\n<circle r=\"370\" fill=\"#13252d\" stroke=\"#55dff7\" stroke-width=\"17\"\/>\n<circle r=\"330\" fill=\"#aab6bb\" stroke=\"#e1ecef\" stroke-width=\"20\" stroke-dasharray=\"22 9\"\/>\n<circle r=\"287\" fill=\"#27434d\" stroke=\"#a6ded9\" stroke-width=\"13\"\/>\n<circle r=\"255\" fill=\"#b8c2c5\" stroke=\"#f0c865\" stroke-width=\"8\"\/>\n<g transform=\"translate(-115,-118)\">\n <circle r=\"112\" fill=\"#d7dfe0\" stroke=\"#f0c865\" stroke-width=\"7\"\/>\n <circle cx=\"-42\" r=\"55\" fill=\"#2a6e7c\" stroke=\"#55dff7\" stroke-width=\"7\"\/><circle cx=\"-42\" r=\"31\" fill=\"url(#cu)\"\/>\n <circle cx=\"42\" r=\"55\" fill=\"#39765e\" stroke=\"#a6ded9\" stroke-width=\"7\"\/><circle cx=\"42\" r=\"31\" fill=\"url(#cu)\"\/>\n<\/g>\n<g transform=\"translate(120,-118)\">\n <circle r=\"112\" fill=\"#d7dfe0\" stroke=\"#f0c865\" stroke-width=\"7\"\/>\n <circle cx=\"-42\" r=\"55\" fill=\"#2a6e7c\" stroke=\"#55dff7\" stroke-width=\"7\"\/><circle cx=\"-42\" r=\"31\" fill=\"url(#cu)\"\/>\n <circle cx=\"42\" r=\"55\" fill=\"#39765e\" stroke=\"#a6ded9\" stroke-width=\"7\"\/><circle cx=\"42\" r=\"31\" fill=\"url(#cu)\"\/>\n<\/g>\n<g transform=\"translate(-115,120)\">\n <circle r=\"112\" fill=\"#d7dfe0\" stroke=\"#f0c865\" stroke-width=\"7\"\/>\n <circle cx=\"-42\" r=\"55\" fill=\"#2a6e7c\" stroke=\"#55dff7\" stroke-width=\"7\"\/><circle cx=\"-42\" r=\"31\" fill=\"url(#cu)\"\/>\n <circle cx=\"42\" r=\"55\" fill=\"#39765e\" stroke=\"#a6ded9\" stroke-width=\"7\"\/><circle cx=\"42\" r=\"31\" fill=\"url(#cu)\"\/>\n<\/g>\n<g transform=\"translate(120,120)\">\n <circle r=\"112\" fill=\"#d7dfe0\" stroke=\"#f0c865\" stroke-width=\"7\"\/>\n <circle cx=\"-42\" r=\"55\" fill=\"#2a6e7c\" stroke=\"#55dff7\" stroke-width=\"7\"\/><circle cx=\"-42\" r=\"31\" fill=\"url(#cu)\"\/>\n <circle cx=\"42\" r=\"55\" fill=\"#39765e\" stroke=\"#a6ded9\" stroke-width=\"7\"\/><circle cx=\"42\" r=\"31\" fill=\"url(#cu)\"\/>\n<\/g><\/g>\n<g font-family=\"Arial\" fill=\"#eaf6f8\"><rect x=\"1050\" y=\"190\" width=\"760\" height=\"735\" rx=\"18\" fill=\"#0b222d\" stroke=\"#315b6f\"\/>\n<text x=\"1100\" y=\"245\" font-size=\"27\" fill=\"#f0c865\" font-weight=\"700\">\u5de5\u7a0b\u5c42\u7ea7<\/text>\n<text x=\"1100\" y=\"315\" font-size=\"20\">1 \u00b7 Copper conductor\uff1a0.5 \/ 0.75 \/ 1.0 \/ 1.5 \/ 2.5 mm\u00b2<\/text>\n<text x=\"1100\" y=\"375\" font-size=\"20\">2 \u00b7 PE \/ project-specific XLPE \/ PVC insulation route<\/text>\n<text x=\"1100\" y=\"435\" font-size=\"20\">3 \u00b7 Twisted pair \/ triple\uff1a\u964d\u4f4e\u78c1\u8026\u5408\u548c\u5171\u6a21\u566a\u58f0<\/text>\n<text x=\"1100\" y=\"495\" font-size=\"20\">4 \u00b7 Individual Al\/PET screen\uff1a\u9694\u79bb pair-to-pair crosstalk<\/text>\n<text x=\"1100\" y=\"555\" font-size=\"20\">5 \u00b7 Tinned copper drain wire\uff1a\u5efa\u7acb\u5c4f\u853d\u5c42\u7aef\u63a5\u8def\u5f84<\/text>\n<text x=\"1100\" y=\"615\" font-size=\"20\">6 \u00b7 Collective Al\/PET screen\uff1a\u5bf9\u6574\u675f\u63d0\u4f9b\u5916\u90e8 EMI \u5c4f\u853d<\/text>\n<text x=\"1100\" y=\"675\" font-size=\"20\">7 \u00b7 Bedding + SWA\uff1aType 2 \u673a\u68b0\u4fdd\u62a4<\/text>\n<text x=\"1100\" y=\"735\" font-size=\"20\">8 \u00b7 PVC \/ LSZH oversheath\uff1a\u73af\u5883\u4e0e\u6d88\u9632\u6027\u80fd\u6309\u9879\u76ee\u786e\u8ba4<\/text>\n<rect x=\"1090\" y=\"795\" width=\"670\" height=\"90\" rx=\"10\" fill=\"#081b24\" stroke=\"#ff9297\"\/>\n<text x=\"1120\" y=\"835\" font-size=\"20\" fill=\"#ff9297\">\u8fb9\u754c\uff1aBS\/PAS 5308 \u662f\u56fa\u5b9a\u4eea\u8868\u4e92\u8fde\u67b6\u6784\uff0c<\/text><text x=\"1120\" y=\"866\" font-size=\"20\">\u4e0d\u80fd\u81ea\u52a8\u8bc1\u660e drag-chain \/ festoon \/ reeling \u5faa\u73af\u5bff\u547d\u3002<\/text>\n<\/g><\/svg><div class=\"svg-caption\">Figure 1 \u2014 Type 2 ICAM \u5178\u578b\u7ed3\u6784\u793a\u610f\uff1b\u5b9e\u9645\u5c42\u539a\u3001pair \u6570\u3001SWA \u4e0e\u62a4\u5957\u7531\u6279\u51c6\u56fe\u7eb8\u786e\u5b9a\u3002<\/div><\/div>\n\n\n<section id=\"construction\"><h2>4. \u6bcf\u4e00\u5c42\u4e3a\u4ec0\u4e48\u5b58\u5728\uff1a\u4eea\u8868\u7535\u7f06\u4e0d\u662f\u7f29\u5c0f\u7248\u52a8\u529b\u7535\u7f06<\/h2>\n<div class=\"grid\">\n<div class=\"box\"><h3>Twisted Pair<\/h3><p>\u4e24\u6839\u5bfc\u4f53\u4ee5\u53d7\u63a7\u8282\u8ddd\u7ede\u5408\uff0c\u4f7f\u5916\u90e8\u78c1\u573a\u5bf9\u4e24\u7ebf\u4ea7\u751f\u66f4\u63a5\u8fd1\u7684\u5171\u6a21\u8026\u5408\uff0c\u5dee\u5206\u63a5\u6536\u7aef\u53ef\u4ee5\u66f4\u6709\u6548\u6291\u5236\u5e72\u6270\uff1b\u540c\u65f6 pair lay \u5bf9\u7535\u5bb9\u3001\u4e32\u6270\u4e0e\u67d4\u6027\u90fd\u6709\u5f71\u54cd\u3002<\/p><\/div>\n<div class=\"box\"><h3>Individual Screen<\/h3><p>\u5bf9\u6bcf\u4e00\u4e2a pair\/triple \u5f62\u6210\u72ec\u7acb\u6cd5\u62c9\u7b2c\u5c4f\u969c\uff0c\u663e\u8457\u964d\u4f4e\u9ad8\u963b\/\u4f4e\u7535\u5e73\u901a\u9053\u4e4b\u95f4\u7684 capacitive crosstalk\uff0c\u5c24\u5176\u9002\u5408\u5bc6\u96c6\u6a21\u62df\u91cf\u3002<\/p><\/div>\n<div class=\"box\"><h3>Collective Screen<\/h3><p>\u56f4\u7ed5\u6574\u675f\u7684 Al\/PET screen \u7528\u4e8e\u963b\u9694\u5916\u90e8 electric-field interference\uff0c\u5e76\u901a\u8fc7 drain wire \u5efa\u7acb\u65b9\u4fbf\u3001\u8fde\u7eed\u7684\u7aef\u63a5\u8def\u5f84\u3002<\/p><\/div>\n<div class=\"box\"><h3>Drain Wire<\/h3><p>Al\/PET \u7b94\u672c\u8eab\u96be\u4ee5\u76f4\u63a5\u53ef\u9760\u63a5\u7ebf\uff1b\u9540\u9521\u94dc drain wire \u5c06\u5c4f\u853d\u5c42\u7535\u6c14\u8fde\u7eed\u6027\u5f15\u51fa\u5230 gland\/earth bar\/terminal\u3002<\/p><\/div>\n<div class=\"box\"><h3>SWA Type 2<\/h3><p>\u4e3a\u56fa\u5b9a\u6577\u8bbe\u589e\u52a0 crush\u3001impact \u548c\u673a\u68b0\u635f\u4f24\u4fdd\u62a4\uff1b\u5b83\u4f1a\u589e\u52a0\u5916\u5f84\u3001\u91cd\u91cf\u3001\u5f2f\u66f2\u534a\u5f84\u548c\u65bd\u5de5\u96be\u5ea6\uff0c\u56e0\u6b64\u4e0d\u80fd\u628a Type 2 \u89c6\u4f5c\u201c\u6c38\u8fdc\u66f4\u597d\u201d\u3002<\/p><\/div>\n<div class=\"box\"><h3>Sheath<\/h3><p>PVC\u3001PE\u3001LSZH \u6216\u9879\u76ee\u4e13\u7528\u62a4\u5957\u5206\u522b\u5bf9\u5e94\u963b\u71c3\u3001\u4f4e\u70df\u3001\u8010 UV\u3001\u8010\u6cb9\u3001\u8010\u5316\u5b66\u54c1\u7b49\u4e0d\u540c\u9700\u6c42\uff1b\u62a4\u5957\u6027\u80fd\u4e0d\u5e94\u4ece \u201cBS5308\u201d \u540d\u79f0\u81ea\u52a8\u63a8\u65ad\u3002<\/p><\/div>\n<\/div>\n<\/section>\n\n<section id=\"screen\"><h2>5. CAM \u4e0e ICAM\uff1a\u4ec0\u4e48\u65f6\u5019\u5fc5\u987b\u505a pair-by-pair screening\uff1f<\/h2>\n<p><strong>CAM<\/strong>\uff08Collectively Aluminium\/Mylar screened\uff09\u5f3a\u8c03\u6574\u675f\u603b\u5c4f\u853d\uff1b<strong>ICAM<\/strong>\uff08Individual + Collective Aluminium\/Mylar\uff09\u5728\u6bcf\u5bf9\/\u6bcf\u7ec4\u4e09\u7ebf\u7ec4\u5916\u589e\u52a0 individual screen\uff0c\u518d\u5728\u603b\u6210\u5916\u52a0 collective screen\u3002\u516c\u5f00 BS5308\/PAS5308 \u4ea7\u54c1\u4e5f\u4f7f\u7528 IAM\/CAM\u3001ICAM\u3001ICAT\u3001PiMF \u7b49\u884c\u4e1a\u7f29\u5199\u8868\u8fbe\u76f8\u4f3c\u7ed3\u6784\u3002<a href=\"https:\/\/www.elandcables.com\/cables\/bs5308-pas-5308-part-2-type-1-2-cables\" target=\"_blank\" rel=\"nofollow noopener\">[\u7ed3\u6784\u53c2\u8003]<\/a><\/p>\n<div class=\"compare-grid\">\n<div class=\"compare\"><h3>CAM \u66f4\u9002\u5408<\/h3><p>\u540c\u7c7b\u4fe1\u53f7\u3001\u7535\u5e73\u76f8\u8fd1\u3001\u56de\u8def\u6570\u91cf\u8f83\u5c11\u3001\u5916\u90e8 EMI \u662f\u4e3b\u8981\u98ce\u9669\u4e14\u9884\u7b97\u654f\u611f\u7684\u9879\u76ee\u3002<\/p><\/div>\n<div class=\"compare\"><h3>ICAM \u66f4\u9002\u5408<\/h3><p>\u591a\u4e2a\u72ec\u7acb 4\u201320mA\/RTD\/low-level channel \u5171\u7f06\u3001\u4e0d\u540c\u4fe1\u53f7\u9891\u7387\u5e76\u5b58\u3001\u4e32\u6270\u6307\u6807\u4e25\u683c\u6216 SIS\/ESD \u4fe1\u53f7\u9700\u8981\u66f4\u9ad8\u9694\u79bb\u65f6\u3002<\/p><\/div>\n<div class=\"compare\"><h3>ICAM \u7684\u4ee3\u4ef7<\/h3><p>\u5916\u5f84\u3001\u8d28\u91cf\u3001\u6750\u6599\u3001\u5265\u7ebf\u5de5\u65f6\u548c termination complexity \u4e0a\u5347\uff1b\u9519\u8bef\u7aef\u63a5 individual screens \u4e5f\u53ef\u80fd\u7834\u574f\u8bbe\u8ba1\u6536\u76ca\u3002<\/p><\/div>\n<div class=\"compare\"><h3>\u5c4f\u853d\u4e0d\u662f\u4e07\u80fd<\/h3><p>\u5f3a\u78c1\u573a\u3001VFD \u8f93\u51fa\u9644\u8fd1\u3001\u957f\u8ddd\u79bb\u5e73\u884c\u6577\u8bbe\u548c\u9519\u8bef grounding \u4ecd\u4f1a\u9020\u6210\u5e72\u6270\uff1b\u9700\u8981\u540c\u65f6\u505a cable segregation \u548c EMC installation design\u3002<\/p><\/div>\n<\/div>\n<\/section>\n\n\n<div class=\"svg\"><svg viewBox=\"0 0 1900 1070\" role=\"img\" aria-label=\"CAM versus ICAM instrumentation cable shielding\">\n<rect width=\"1900\" height=\"1070\" fill=\"#06131b\"\/><text x=\"60\" y=\"65\" fill=\"#55dff7\" font-family=\"Arial\" font-size=\"38\" font-weight=\"700\">CAM vs ICAM\uff1a\u4e0d\u8981\u628a\u201c\u6709\u5c4f\u853d\u201d\u5f53\u6210\u540c\u4e00\u79cd EMC \u6027\u80fd<\/text>\n<text x=\"60\" y=\"108\" fill=\"#adc4ce\" font-family=\"Arial\" font-size=\"20\">Collective screen \u4e3b\u8981\u5904\u7406\u5916\u90e8\u573a\uff1bindividual + collective screen \u66f4\u64c5\u957f\u964d\u4f4e\u901a\u9053\u4e4b\u95f4\u7684\u4e32\u6270\u3002<\/text>\n<g font-family=\"Arial\" fill=\"#eaf6f8\">\n<rect x=\"80\" y=\"180\" width=\"800\" height=\"690\" rx=\"20\" fill=\"#0b222d\" stroke=\"#55dff7\" stroke-width=\"5\"\/>\n<text x=\"145\" y=\"240\" font-size=\"30\" fill=\"#55dff7\" font-weight=\"700\">CAM \u00b7 Collective screen<\/text>\n<ellipse cx=\"480\" cy=\"530\" rx=\"285\" ry=\"220\" fill=\"none\" stroke=\"#f0c865\" stroke-width=\"18\"\/>\n<g fill=\"#2a6e7c\" stroke=\"#a6ded9\" stroke-width=\"6\"><circle cx=\"350\" cy=\"450\" r=\"72\"\/><circle cx=\"545\" cy=\"450\" r=\"72\"\/><circle cx=\"350\" cy=\"615\" r=\"72\"\/><circle cx=\"545\" cy=\"615\" r=\"72\"\/><\/g>\n<path d=\"M275 400 C220 480 220 590 285 675\" fill=\"none\" stroke=\"#ff9297\" stroke-width=\"7\" stroke-dasharray=\"14 10\"\/>\n<text x=\"145\" y=\"800\" font-size=\"19\">\u4f18\u70b9\uff1a\u7ed3\u6784\u7b80\u5355\u3001\u5916\u90e8 EMI \u9632\u62a4\u6709\u6548\u3001\u76f4\u5f84\u4e0e\u6210\u672c\u8f83\u4f4e\u3002<\/text>\n<rect x=\"1020\" y=\"180\" width=\"800\" height=\"690\" rx=\"20\" fill=\"#0b222d\" stroke=\"#a6ded9\" stroke-width=\"5\"\/>\n<text x=\"1085\" y=\"240\" font-size=\"30\" fill=\"#a6ded9\" font-weight=\"700\">ICAM \u00b7 Individual + Collective<\/text>\n<ellipse cx=\"1420\" cy=\"530\" rx=\"285\" ry=\"220\" fill=\"none\" stroke=\"#f0c865\" stroke-width=\"18\"\/>\n<g fill=\"#2a6e7c\" stroke=\"#a6ded9\" stroke-width=\"6\"><circle cx=\"1290\" cy=\"450\" r=\"72\"\/><circle cx=\"1485\" cy=\"450\" r=\"72\"\/><circle cx=\"1290\" cy=\"615\" r=\"72\"\/><circle cx=\"1485\" cy=\"615\" r=\"72\"\/><\/g>\n<g fill=\"none\" stroke=\"#d7dfe0\" stroke-width=\"10\"><circle cx=\"1290\" cy=\"450\" r=\"94\"\/><circle cx=\"1485\" cy=\"450\" r=\"94\"\/><circle cx=\"1290\" cy=\"615\" r=\"94\"\/><circle cx=\"1485\" cy=\"615\" r=\"94\"\/><\/g>\n<text x=\"1085\" y=\"800\" font-size=\"19\">\u4f18\u70b9\uff1a\u66f4\u5f3a pair-to-pair \u9694\u79bb\uff0c\u9002\u5408\u4f4e\u7535\u5e73\u6a21\u62df\u91cf\u3001\u591a\u56de\u8def\u5bc6\u96c6\u6577\u8bbe\u3002<\/text>\n<rect x=\"90\" y=\"920\" width=\"1720\" height=\"90\" rx=\"12\" fill=\"#081b24\" stroke=\"#315b6f\"\/><text x=\"125\" y=\"958\" font-size=\"20\" fill=\"#ffcf9c\">\u9009\u62e9\u4e0d\u662f\u201c\u8d8a\u591a\u5c4f\u853d\u8d8a\u597d\u201d\uff1a\u8fd8\u8981\u8003\u8651\u5916\u5f84\u3001\u6210\u672c\u3001\u63a5\u5730\u65b9\u5f0f\u3001\u9891\u7387\u8303\u56f4\u3001barrier \u7684 C\/L \u9650\u503c\u4ee5\u53ca\u7aef\u63a5\u53ef\u7ef4\u62a4\u6027\u3002<\/text>\n<\/g><\/svg><div class=\"svg-caption\">Figure 2 \u2014 CAM \u4e0e ICAM \u7684\u529f\u80fd\u5dee\u5f02\u3002<\/div><\/div>\n\n\n<section id=\"specs\"><h2>6. \u89c4\u683c\u4e0e\u7535\u6c14\u53c2\u6570\uff1a0.5\u20132.5 mm\u00b2 \u4e0d\u53ea\u5f71\u54cd\u7535\u963b<\/h2>\n<p>\u4e0b\u9762\u4fdd\u7559\u5f53\u524d\u516c\u5f00 BS5308\/PAS5308-style \u6570\u636e\u4e2d\u5e38\u89c1\u7684 0.5\u30010.75\u30011.0\u30011.5\u30012.5 mm\u00b2 \u4e94\u6863\u3002\u6570\u636e\u7528\u4e8e\u5efa\u7acb\u884c\u4e1a\u5c3a\u5ea6\u611f\u548c\u540e\u7eed\u8ba1\u7b97\uff0c<strong>\u4e0d\u662f\u98de\u7eaf\u6700\u7ec8\u4fdd\u8bc1\u503c<\/strong>\uff1b\u98de\u7eaf\u91cf\u4ea7\u503c\u5e94\u7531\u81ea\u5df1\u7684 approved datasheet\u3001routine\/type test \u548c\u5ba2\u6237\u9879\u76ee\u8981\u6c42\u786e\u5b9a\u3002<\/p>\n<div class=\"scroll\"><table><caption>\u516c\u5f00\u884c\u4e1a benchmark\uff1a\u5bfc\u4f53\u3001\u7535\u5bb9\u3001\u7edd\u7f18\u7535\u963b\u4e0e L\/R<\/caption><thead><tr>\n<th>\u622a\u9762<\/th><th>\u516c\u5f00 conductor class \u793a\u4f8b<\/th><th>R20 max \u03a9\/km<\/th><th>PE CAM mutual C pF\/m<\/th><th>PE ICAM mutual C pF\/m<\/th><th>PVC pair\/adjacent C pF\/m<\/th><th>PVC core-screen C pF\/m<\/th><th>PE IR<\/th><th>PVC IR<\/th><th>Max L\/R \u03bcH\/\u03a9<\/th>\n<\/tr><\/thead><tbody><tr><td class='key'>0,5 mm\u00b2<\/td><td>Class 5<\/td><td>39<\/td><td>75<\/td><td>115<\/td><td>250<\/td><td>450<\/td><td>>5 G\u03a9\u00b7km<\/td><td>>25 M\u03a9\u00b7km<\/td><td>25<\/td><\/tr><tr><td class='key'>0,75 mm\u00b2<\/td><td>Class 5<\/td><td>26<\/td><td>75<\/td><td>115<\/td><td>250<\/td><td>450<\/td><td>>5 G\u03a9\u00b7km<\/td><td>>25 M\u03a9\u00b7km<\/td><td>25<\/td><\/tr><tr><td class='key'>1 mm\u00b2<\/td><td>Class 1<\/td><td>18,1<\/td><td>75<\/td><td>115<\/td><td>250<\/td><td>450<\/td><td>>5 G\u03a9\u00b7km<\/td><td>>25 M\u03a9\u00b7km<\/td><td>25<\/td><\/tr><tr><td class='key'>1,5 mm\u00b2<\/td><td>Class 2<\/td><td>12,1<\/td><td>85<\/td><td>120<\/td><td>250<\/td><td>450<\/td><td>>5 G\u03a9\u00b7km<\/td><td>>25 M\u03a9\u00b7km<\/td><td>40<\/td><\/tr><tr><td class='key'>2,5 mm\u00b2<\/td><td>Class 2<\/td><td>7,41<\/td><td>85<\/td><td>120<\/td><td>250<\/td><td>450<\/td><td>>5 G\u03a9\u00b7km<\/td><td>>25 M\u03a9\u00b7km<\/td><td>65<\/td><\/tr><\/tbody><\/table><\/div>\n<p>\u516c\u5f00 PE\/XLPE-style benchmark \u7684 mutual capacitance \u5e38\u89c1\u7ea6 <strong>75\u201385 pF\/m\uff08collective-screen route\uff09<\/strong>\u3001individual-screened pair \u5e38\u89c1 <strong>115\u2013120 pF\/m<\/strong>\uff1b\u516c\u5f00 PVC Part 2 \u793a\u4f8b\u5219\u8fbe\u5230 <strong>250 pF\/m pair-to-pair \/ adjacent core<\/strong>\u3001\u7ea6 <strong>450 pF\/m core-to-screen<\/strong>\u3002\u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48\u957f\u8ddd\u79bb\u3001\u672c\u5b89\u548c\u9ad8\u963b\u4fe1\u53f7\u56de\u8def\u4e0d\u80fd\u53ea\u6bd4\u8f83\u622a\u9762\u548c\u4ef7\u683c\u3002<\/p>\n<p class=\"small\">\u7535\u6c14\u6570\u636e\u6765\u6e90\u793a\u4f8b\uff1aEland \u5f53\u524d\u516c\u5f00 BS\/PAS5308 PE\/XLPE \u4e0e PVC datasheet\/search data\uff0c\u5e76\u4e0e\u5176\u4ea7\u54c1\u9875\u9762\u7684 0.5\/0.75\/1\/1.5\/2.5 mm\u00b2 \u8303\u56f4\u4ea4\u53c9\u6838\u5bf9\u3002<a href=\"https:\/\/www.elandcables.com\/cables\/bs5308-pas5308-part-1-type-1-cables\" target=\"_blank\" rel=\"nofollow noopener\">Part 1 Type 1<\/a> \u00b7 <a href=\"https:\/\/www.elandcables.com\/cables\/bs5308-pas-5308-part-2-type-1-2-cables\" target=\"_blank\" rel=\"nofollow noopener\">Part 2<\/a>\u3002<\/p>\n\n<h3>6.1 \u5e38\u89c1 pair \/ triple \/ quad \u7ec4\u5408<\/h3>\n<div class=\"scroll\"><table><caption>\u516c\u5f00\u5e02\u573a\u5e38\u89c1\u6784\u578b\uff08\u793a\u4f8b\uff0c\u4e0d\u4ee3\u8868\u6240\u6709\u7ec4\u5408\u81ea\u52a8\u5c5e\u4e8e\u73b0\u884c\u6807\u51c6\uff09<\/caption><thead><tr><th>\u6784\u578b<\/th><th>0.5<\/th><th>0.75<\/th><th>1.0<\/th><th>1.5<\/th><th>2.5 mm\u00b2<\/th><th>\u5de5\u7a0b\u8bf4\u660e<\/th><\/tr><\/thead><tbody>\n<tr><td class=\"key\">1 Pair<\/td><td>\u2713<\/td><td>\u2713<\/td><td>\u2713<\/td><td>\u2713<\/td><td>\u2713<\/td><td>\u5355\u56de\u8def transmitter \/ valve feedback<\/td><\/tr>\n<tr><td class=\"key\">1 Triple<\/td><td>\u2713<\/td><td>\u2713<\/td><td>\u2713<\/td><td>\u2713<\/td><td>\u2713<\/td><td>\u4e09\u7ebf\u5236 RTD \/ special instrumentation<\/td><\/tr>\n<tr><td class=\"key\">2 Pair \/ Quad<\/td><td>\u2713<\/td><td>\u2713<\/td><td>\u2713<\/td><td>\u2713<\/td><td>\u2713<\/td><td>\u4e24\u56de\u8def\u6216 quad lay<\/td><\/tr>\n<tr><td class=\"key\">3 Pair<\/td><td>ICAM market route<\/td><td>\u2713<\/td><td>\u2713<\/td><td>\u2713<\/td><td>\u2713<\/td><td>\u591a\u901a\u9053 individual screen<\/td><\/tr>\n<tr><td class=\"key\">5 Pair<\/td><td>\u2713<\/td><td>\u2713<\/td><td>\u2713<\/td><td>\u2713<\/td><td>\u2713<\/td><td>\u5c0f\u578b J-box trunk<\/td><\/tr>\n<tr><td class=\"key\">10 Pair<\/td><td>\u2713<\/td><td>\u2713<\/td><td>\u2713<\/td><td>\u2713<\/td><td>\u2713<\/td><td>DCS\/PLC marshalling \u5e38\u89c1<\/td><\/tr>\n<tr><td class=\"key\">15 Pair<\/td><td>\u2713<\/td><td>\u2713<\/td><td>\u2713<\/td><td>\u2713<\/td><td>\u2713<\/td><td>\u591a\u56de\u8def\u73b0\u573a\u4e3b\u5e72<\/td><\/tr>\n<tr><td class=\"key\">20 Pair<\/td><td>\u2713<\/td><td>\u2713<\/td><td>\u2713<\/td><td>\u2713<\/td><td>\u2713<\/td><td>\u9ad8\u5bc6\u5ea6 instrumentation trunk<\/td><\/tr>\n<\/tbody><\/table><\/div>\n<\/section>\n\n<section id=\"calc\"><h2>7. 4\u201320 mA \u957f\u8ddd\u79bb\u56de\u8def\uff1a1 km \u5230\u5e95\u635f\u5931\u591a\u5c11\u7535\u538b\uff1f<\/h2>\n<div class=\"formula\">Loop resistance (1 km) = 2 \u00d7 conductor R20\n\nVoltage drop at 20 mA = I \u00d7 Rloop\n\nLoop copper loss = I\u00b2 \u00d7 Rloop\n\nCable capacitance:\npF\/m \u00d7 1000 m = nF\/km\n\n\u6ce8\u610f\uff1a\u5b9e\u9645\u56de\u8def\u8fd8\u5305\u62ec transmitter\u3001IS barrier \/ galvanic isolator\u3001\nterminal\u3001fuse\u3001surge protector \u548c receiver input \u7684\u538b\u964d\/\u963b\u6297\u3002<\/div>\n<div class=\"scroll\"><table><caption>1 km 4\u201320 mA \u56de\u8def\u7684\u6d3e\u751f\u6bd4\u8f83<\/caption><thead><tr>\n<th>\u622a\u9762<\/th><th>1km loop R20 \u03a9<\/th><th>500m drop @20mA V<\/th><th>1km drop @20mA V<\/th><th>1km loop copper loss W<\/th><th>PE ICAM C@1km nF<\/th><th>PVC pair C@1km nF<\/th><th>PVC core-screen C@1km nF<\/th>\n<\/tr><\/thead><tbody><tr><td class='key'>0,5 mm\u00b2<\/td><td>78<\/td><td>0,78<\/td><td>1,56<\/td><td>0,031<\/td><td>115<\/td><td>250<\/td><td>450<\/td><\/tr><tr><td class='key'>0,75 mm\u00b2<\/td><td>52<\/td><td>0,52<\/td><td>1,04<\/td><td>0,021<\/td><td>115<\/td><td>250<\/td><td>450<\/td><\/tr><tr><td class='key'>1 mm\u00b2<\/td><td>36,2<\/td><td>0,362<\/td><td>0,724<\/td><td>0,014<\/td><td>115<\/td><td>250<\/td><td>450<\/td><\/tr><tr><td class='key'>1,5 mm\u00b2<\/td><td>24,2<\/td><td>0,242<\/td><td>0,484<\/td><td>0,01<\/td><td>120<\/td><td>250<\/td><td>450<\/td><\/tr><tr><td class='key'>2,5 mm\u00b2<\/td><td>14,82<\/td><td>0,148<\/td><td>0,296<\/td><td>0,006<\/td><td>120<\/td><td>250<\/td><td>450<\/td><\/tr><\/tbody><\/table><\/div>\n<p>\u4f8b\u5982 0.5 mm\u00b2 \u7684\u516c\u5f00\u7535\u963b\u4e0a\u9650\u4e3a 39 \u03a9\/km\uff0c1 km \u53bb\u7a0b + 1 km \u56de\u7a0b\u7684 loop resistance \u4e3a 78 \u03a9\uff0c\u4ec5\u5bfc\u7ebf\u5728 20 mA \u65f6\u5c31\u4ea7\u751f\u7ea6 <strong>1.56 V<\/strong> \u538b\u964d\uff1b2.5 mm\u00b2 \u5219\u7ea6 <strong>0.296 V<\/strong>\u3002\u5982\u679c\u56de\u8def\u5305\u542b 24 VDC supply\u3001\u4e24\u7ebf\u5236 transmitter \u548c Zener\/galvanic barrier\uff0c\u5fc5\u987b\u628a\u6700\u5dee supply tolerance \u548c barrier drop \u4e00\u8d77\u7b97\u8fdb\u53bb\u3002<\/p>\n<p class=\"note\"><strong>HART \u4e0d\u662f\u53ea\u770b DC \u538b\u964d\uff1a<\/strong>HART \u5728 4\u201320mA \u76f4\u6d41\u4e0a\u53e0\u52a0 AC \u6570\u5b57\u4fe1\u53f7\uff0c\u56e0\u6b64 cable capacitance\u3001loop impedance\u3001barrier\/isolator \u7684 HART compatibility \u548c\u5b89\u88c5\u5c4f\u853d\u540c\u6837\u91cd\u8981\u3002<\/p>\n<\/section>\n\n\n<div class=\"svg\"><svg viewBox=\"0 0 1900 1090\" role=\"img\" aria-label=\"4-20mA instrumentation cable noise and voltage drop\">\n<rect width=\"1900\" height=\"1090\" fill=\"#06131b\"\/><text x=\"60\" y=\"65\" fill=\"#55dff7\" font-family=\"Arial\" font-size=\"38\" font-weight=\"700\">4\u201320 mA\u3001RTD\u3001\u8109\u51b2\u4e0e\u6570\u5b57\u4fe1\u53f7\uff1a\u540c\u4e00\u6839\u4eea\u8868\u7535\u7f06\uff0c\u5173\u6ce8\u70b9\u4e0d\u540c<\/text>\n<text x=\"60\" y=\"108\" fill=\"#adc4ce\" font-family=\"Arial\" font-size=\"20\">\u957f\u8ddd\u79bb\u4eea\u8868\u56de\u8def\u4e0d\u662f\u53ea\u770b\u201c300\/500 V\u201d\uff1b\u7535\u963b\u3001\u7535\u5bb9\u3001\u5c4f\u853d\u3001\u4e32\u6270\u548c grounding \u90fd\u4f1a\u5f71\u54cd\u6d4b\u91cf\u8d28\u91cf\u3002<\/text>\n<g font-family=\"Arial\" fill=\"#eaf6f8\">\n<rect x=\"70\" y=\"190\" width=\"400\" height=\"650\" rx=\"18\" fill=\"#0b222d\" stroke=\"#55dff7\" stroke-width=\"5\"\/><text x=\"125\" y=\"250\" font-size=\"27\" fill=\"#55dff7\" font-weight=\"700\">4\u201320 mA \/ HART<\/text><path d=\"M125 480H410\" stroke=\"#d88d47\" stroke-width=\"20\"\/><circle cx=\"150\" cy=\"480\" r=\"48\" fill=\"#173541\" stroke=\"#55dff7\" stroke-width=\"7\"\/><circle cx=\"385\" cy=\"480\" r=\"48\" fill=\"#173541\" stroke=\"#a6ded9\" stroke-width=\"7\"\/><text x=\"105\" y=\"690\" font-size=\"18\">\u5173\u6ce8\uff1aloop R\u3001barrier drop\u3001C\u3001EMI<\/text>\n<rect x=\"510\" y=\"190\" width=\"400\" height=\"650\" rx=\"18\" fill=\"#0b222d\" stroke=\"#f0c865\" stroke-width=\"5\"\/><text x=\"595\" y=\"250\" font-size=\"27\" fill=\"#f0c865\" font-weight=\"700\">RTD \/ TC<\/text><path d=\"M575 450 C640 390 720 520 845 440\" fill=\"none\" stroke=\"#d88d47\" stroke-width=\"12\"\/><text x=\"555\" y=\"690\" font-size=\"18\">\u5173\u6ce8\uff1a\u00b5V\/mV \u566a\u58f0\u3001\u6750\u6599\u3001\u4e09\/\u56db\u7ebf\u5236\u3001\u5c4f\u853d<\/text>\n<rect x=\"950\" y=\"190\" width=\"400\" height=\"650\" rx=\"18\" fill=\"#0b222d\" stroke=\"#a6ded9\" stroke-width=\"5\"\/><text x=\"1015\" y=\"250\" font-size=\"27\" fill=\"#a6ded9\" font-weight=\"700\">Pulse \/ Encoder<\/text><path d=\"M1015 525V410H1095V525H1175V410H1255V525\" fill=\"none\" stroke=\"#55dff7\" stroke-width=\"12\"\/><text x=\"995\" y=\"690\" font-size=\"18\">\u5173\u6ce8\uff1arise time\u3001C\u3001impedance\u3001pair twist<\/text>\n<rect x=\"1390\" y=\"190\" width=\"440\" height=\"650\" rx=\"18\" fill=\"#0b222d\" stroke=\"#ff9297\" stroke-width=\"5\"\/><text x=\"1460\" y=\"250\" font-size=\"27\" fill=\"#ff9297\" font-weight=\"700\">Intrinsic Safety<\/text><rect x=\"1460\" y=\"400\" width=\"130\" height=\"120\" fill=\"#173541\" stroke=\"#55dff7\" stroke-width=\"6\"\/><text x=\"1490\" y=\"468\" font-size=\"20\">Barrier<\/text><path d=\"M1590 460H1760\" stroke=\"#d88d47\" stroke-width=\"16\"\/><text x=\"1435\" y=\"690\" font-size=\"18\">\u5173\u6ce8\uff1aCo\/Lo \u4e0e cable C\/L budget\u3001\u9694\u79bb\u3001\u6587\u4ef6<\/text>\n<rect x=\"90\" y=\"910\" width=\"1720\" height=\"100\" rx=\"12\" fill=\"#081b24\" stroke=\"#315b6f\"\/><text x=\"125\" y=\"950\" font-size=\"20\" fill=\"#bfe5a5\">\u5de5\u7a0b\u89c4\u5219\uff1a\u5148\u6839\u636e\u4eea\u8868\u8f93\u51fa\u963b\u6297\u3001receiver\/barrier \u53c2\u6570\u548c\u5141\u8bb8\u8bef\u5dee\u5efa\u7acb\u201c\u56de\u8def\u9884\u7b97\u201d\uff0c\u518d\u9009\u622a\u9762\u548c\u5c4f\u853d\uff1b\u4e0d\u80fd\u53ea\u6309 pair \u6570\u62a5\u4ef7\u3002<\/text>\n<\/g><\/svg><div class=\"svg-caption\">Figure 3 \u2014 \u4e0d\u540c\u4eea\u8868\u4fe1\u53f7\u5bf9\u5e94\u4e0d\u540c\u7684\u7535\u7f06\u5173\u952e\u6307\u6807\u3002<\/div><\/div>\n\n\n<section id=\"is\"><h2>8. \u672c\u5b89\u56de\u8def\uff1a\u84dd\u8272\u62a4\u5957\u4e0d\u662f\u201c\u672c\u5b89\u8ba4\u8bc1\u201d<\/h2>\n<p>IEC 60079-14:2024 \u662f\u5f53\u524d\u7206\u70b8\u6027\u73af\u5883\u7535\u6c14\u5b89\u88c5\u8bbe\u8ba1\u3001\u8bbe\u5907\u9009\u62e9\u3001\u5b89\u88c5\u548c\u521d\u59cb\u68c0\u67e5\u6807\u51c6\u3002\u5bf9 intrinsically safe circuit\uff0c\u7535\u7f06\u662f\u6574\u4e2a entity-parameter \/ system assessment \u7684\u4e00\u90e8\u5206\uff0c\u800c\u4e0d\u662f\u72ec\u7acb\u9760\u989c\u8272\u83b7\u5f97 Ex i \u5c5e\u6027\u3002<a href=\"https:\/\/webstore.iec.ch\/en\/publication\/66049\" target=\"_blank\" rel=\"nofollow noopener\">[IEC 60079-14:2024]<\/a><\/p>\n<div class=\"grid\">\n<div class=\"box\"><h3>Cable capacitance budget<\/h3><p>\u56de\u8def\u5141\u8bb8\u7684\u5916\u90e8\u7535\u5bb9 Co\uff08\u6216\u5bf9\u5e94\u7cfb\u7edf\u53c2\u6570\uff09\u9700\u8981\u8986\u76d6 cable + terminals + surge protection \u7b49\u603b\u7535\u5bb9\u30021 km \u7684 115 pF\/m \u7535\u7f06\u4ec5 cable \u90e8\u5206\u5c31\u7ea6 115 nF\u3002<\/p><\/div>\n<div class=\"box\"><h3>Inductance budget<\/h3><p>\u540c\u6837\u9700\u8981\u6ee1\u8db3 Lo \/ Lcable \u7684\u9650\u5236\u3002\u4e0d\u80fd\u4ec5\u4ee5 L\/R ratio \u76f4\u63a5\u66ff\u4ee3 barrier datasheet \u8981\u6c42\uff0c\u5e94\u4f9d\u636e\u5236\u9020\u5546\u7ed9\u51fa\u7684 cable L\u3001L\/R \u6216 installation assessment \u65b9\u6cd5\u3002<\/p><\/div>\n<div class=\"box\"><h3>Segregation<\/h3><p>IS \u4e0e non-IS wiring \u7684\u9694\u79bb\u3001terminal arrangement\u3001\u63a5\u5730\u548c\u6807\u8bc6\u5c5e\u4e8e\u5b8c\u6574\u5b89\u88c5\u8bbe\u8ba1\u3002\u8f7b\u84dd\u8272\u5916\u62a4\u5957\u901a\u5e38\u7528\u4e8e\u8bc6\u522b\uff0c\u4f46\u989c\u8272\u672c\u8eab\u4e0d\u521b\u9020\u672c\u5b89\u5b89\u5168\u6027\u3002<\/p><\/div>\n<div class=\"box\"><h3>Ex documentation<\/h3><p>\u5e94\u4fdd\u5b58 barrier\/isolator\u3001field device\u3001cable parameter\u3001junction box\u3001gland\u3001surge device \u548c\u56de\u8def\u8ba1\u7b97\u8bb0\u5f55\uff0c\u4fbf\u4e8e initial inspection \u4e0e\u540e\u7eed\u53d8\u66f4\u7ba1\u7406\u3002<\/p><\/div>\n<\/div>\n<p class=\"warn\"><strong>\u5c24\u5176\u5728 1\u20132 km \u957f\u8ddd\u79bb\uff1a<\/strong>PVC-style \u8f83\u9ad8\u7535\u5bb9\u53ef\u80fd\u6bd4 conductor resistance \u66f4\u65e9\u8017\u5c3d\u672c\u5b89 C budget\u3002\u6b64\u65f6\u6362\u66f4\u7c97\u622a\u9762\u5e76\u4e0d\u80fd\u89e3\u51b3\u95ee\u9898\uff1b\u5e94\u4f18\u5148\u8bc4\u4f30\u4f4e\u7535\u5bb9 PE\/XLPE-style construction \u6216\u6539\u53d8 barrier\/isolator \u65b9\u6848\u3002<\/p>\n<\/section>\n\n<section id=\"grounding\"><h2>9. Instrument screen grounding\uff1a\u5355\u7aef\u8fd8\u662f\u53cc\u7aef\uff1f\u4e0d\u80fd\u4e00\u53e5\u8bdd\u56de\u7b54<\/h2>\n<div class=\"scroll\"><table><caption>\u5c4f\u853d\u63a5\u5730\u7684\u5de5\u7a0b\u51b3\u7b56<\/caption><thead><tr><th>\u573a\u666f<\/th><th>\u5e38\u89c1\u505a\u6cd5<\/th><th>\u539f\u56e0<\/th><th>\u9700\u8981\u907f\u514d<\/th><\/tr><\/thead><tbody>\n<tr><td class=\"key\">\u4f4e\u9891\u6a21\u62df\u91cf \/ 4\u201320mA<\/td><td>\u5e38\u89c1\u4e3a control-room \u4fa7\u5355\u70b9\u5c4f\u853d\u63a5\u5730<\/td><td>\u51cf\u5c11\u4f4e\u9891 ground-loop current<\/td><td>\u73b0\u573a\u7aef\u65e0\u610f\u4e0e\u673a\u58f3\u518d\u6b21\u63a5\u5730\u5f62\u6210\u73af\u8def<\/td><\/tr>\n<tr><td class=\"key\">ICAM \u591a pair<\/td><td>individual drains \u6309 channel \u7ba1\u7406\uff1bcollective screen \u6309 EMC \u8bbe\u8ba1<\/td><td>\u7ef4\u6301 pair-to-pair isolation<\/td><td>\u628a\u6240\u6709 individual screens \u5728 field box \u968f\u610f\u77ed\u63a5<\/td><\/tr>\n<tr><td class=\"key\">\u9ad8\u9891\/\u6570\u5b57 EMC<\/td><td>\u53ef\u80fd\u9700\u8981\u4f4e\u963b\u6297\u3001360\u00b0\u3001\u591a\u70b9\/\u53cc\u7aef\u9ad8\u9891 bonding<\/td><td>\u9ad8\u9891\u4e0b\u4e00\u6839\u957f drain wire \u7535\u611f\u8fc7\u5927<\/td><td>\u673a\u68b0\u7167\u642c\u4f4e\u9891\u201c\u5355\u7aef\u63a5\u5730\u201d\u89c4\u5219<\/td><\/tr>\n<tr><td class=\"key\">SIS \/ IS<\/td><td>\u670d\u4ece safety manual\u3001barrier \u548c site grounding philosophy<\/td><td>\u529f\u80fd\u5b89\u5168\u548c Ex \u5b89\u5168\u4f18\u5148<\/td><td>\u73b0\u573a\u4e2a\u4eba\u7ecf\u9a8c\u8986\u76d6\u9879\u76ee grounding document<\/td><\/tr>\n<\/tbody><\/table><\/div>\n<p>\u4e00\u4e2a\u5b9e\u7528\u7684\u8bbe\u8ba1\u539f\u5219\u662f\uff1a\u628a <strong>screen function\u3001PE\/protective earth\u3001signal reference 0V \u548c armour earth<\/strong> \u5f53\u4f5c\u56db\u4e2a\u4e0d\u540c\u5bf9\u8c61\u5904\u7406\u3002\u5b83\u4eec\u5728\u67d0\u4e9b\u70b9\u53ef\u4ee5\u6309\u8bbe\u8ba1\u8fde\u63a5\uff0c\u4f46\u4e0d\u80fd\u56e0\u4e3a\u201c\u90fd\u662f\u5730\u201d\u5c31\u4efb\u610f\u6df7\u63a5\u3002<\/p>\n<\/section>\n\n<section id=\"compare\"><h2>10. PE\u3001PVC\u3001XLPE\/LSZH\uff1a\u540c\u6837\u53eb BS5308\uff0c\u4fe1\u53f7\u6027\u80fd\u53ef\u80fd\u5dee\u5f88\u591a<\/h2>\n<div class=\"scroll\"><table><caption>\u6750\u6599\u8def\u7ebf\u5bf9\u6bd4<\/caption><thead><tr><th>\u8def\u7ebf<\/th><th>\u4e3b\u8981\u4f18\u52bf<\/th><th>\u4fe1\u53f7\u7279\u6027<\/th><th>\u6d88\u9632\/\u73af\u5883<\/th><th>\u5178\u578b\u9009\u62e9<\/th><\/tr><\/thead><tbody>\n<tr><td class=\"key\">PE insulated<\/td><td>\u4f4e\u4ecb\u7535\u5e38\u6570\u3001\u4f4e\u7535\u5bb9\u3001\u8f83\u9ad8\u7edd\u7f18\u7535\u963b<\/td><td>\u957f\u8ddd\u79bb\u3001\u4f4e\u7535\u5e73\u3001\u672c\u5b89 C budget \u66f4\u6709\u5229<\/td><td>\u5916\u62a4\u5957\/\u963b\u71c3\u9700\u6309\u5177\u4f53\u6784\u9020\u786e\u8ba4<\/td><td>petrochemical instrumentation\u3001\u957f\u7ebf\u6a21\u62df\u91cf<\/td><\/tr>\n<tr><td class=\"key\">PVC insulated<\/td><td>\u6210\u719f\u3001\u7ecf\u6d4e\u3001\u52a0\u5de5\u65b9\u4fbf<\/td><td>\u516c\u5f00 benchmark \u7535\u5bb9\u660e\u663e\u66f4\u9ad8<\/td><td>PVC \u71c3\u70e7\u70df\/\u5364\u7d20\u6027\u80fd\u4e0e LSZH \u4e0d\u540c<\/td><td>\u4e00\u822c\u5de5\u4e1a\u56fa\u5b9a\u63a7\u5236<\/td><\/tr>\n<tr><td class=\"key\">XLPE + LSZH project variant<\/td><td>\u70ed\u6027\u80fd\u3001LSZH\u3001\u673a\u68b0\u7a33\u5b9a\u6027\u8f83\u597d<\/td><td>\u53ef\u8bbe\u8ba1\u4e3a\u4f4e\u7535\u5bb9 instrumentation construction<\/td><td>\u9700\u660e\u786e IEC 60332 \/ 60754 \/ 61034 \/ CPR \u7b49<\/td><td>\u73b0\u4ee3\u57fa\u7840\u8bbe\u65bd\u3001\u63a7\u5236\u5ba4\u3001\u6e2f\u53e3<\/td><\/tr>\n<tr><td class=\"key\">Mica + XLPE \/ silicone fire-resistant variant<\/td><td>\u589e\u52a0 fire survival route<\/td><td>\u7535\u5bb9\/\u67d4\u6027\u53ef\u80fd\u4e0e\u6807\u51c6 PE route \u4e0d\u540c<\/td><td>\u5fc5\u987b\u6309\u5177\u4f53 fire test \u8bc1\u660e circuit integrity<\/td><td>ESD\/SIS\/emergency critical signal<\/td><\/tr>\n<\/tbody><\/table><\/div>\n<\/section>\n\n<section id=\"port\"><h2>11. \u6e2f\u53e3\u3001\u77ff\u5c71\u3001\u77f3\u5316\u4e0e\u8fc7\u7a0b\u63a7\u5236\u4e2d\u7684\u5178\u578b\u4f7f\u7528\u4f4d\u7f6e<\/h2>\n<div class=\"app-grid\">\n<div class=\"app\"><h3>DCS \/ PLC field I\/O<\/h3><p>\u4ece marshalling cabinet \u5230 field JB\uff0c\u518d\u5230 transmitter \u7684 multipair trunk \u548c pair spur\uff0c\u662f BS5308-style \u6700\u5178\u578b\u7684\u5e94\u7528\u3002<\/p><\/div>\n<div class=\"app\"><h3>SIS \/ ESD<\/h3><p>\u9700\u8981\u66f4\u4e25\u683c channel segregation\u3001screen management\u3001route segregation \u4e0e fire\/survivability requirement\uff0c\u4e0d\u80fd\u4e0e\u666e\u901a process signal \u5b8c\u5168\u540c\u7ea7\u5904\u7406\u3002<\/p><\/div>\n<div class=\"app\"><h3>\u6e2f\u53e3 conveyor<\/h3><p>\u901f\u5ea6\u3001\u8dd1\u504f\u3001\u62c9\u7ef3\u3001\u6599\u4f4d\u3001\u8f74\u627f\u6e29\u5ea6\u3001\u632f\u52a8\u548c chute switch \u90fd\u9700\u8981\u53ef\u9760 instrumentation cable\uff1b\u56fa\u5b9a\u6865\u67b6\u6bb5\u53ef\u4f7f\u7528 Type 1\/2-style\u3002<\/p><\/div>\n<div class=\"app\"><h3>\u77ff\u5c71 pump \/ dewatering<\/h3><p>\u6db2\u4f4d\u3001\u538b\u529b\u3001\u6e29\u5ea6\u3001\u6c14\u4f53\u68c0\u6d4b\u548c\u6cf5\u72b6\u6001\u5e38\u8ddd\u63a7\u5236\u5ba4\u5f88\u8fdc\uff0c\u4f4e\u7535\u5bb9\u4e0e\u673a\u68b0\u4fdd\u62a4\u4f1a\u76f4\u63a5\u5f71\u54cd\u7535\u7f06\u8def\u7ebf\u9009\u62e9\u3002<\/p><\/div>\n<div class=\"app\"><h3>Tank farm \/ loading arm<\/h3><p>\u6d41\u91cf\u3001\u538b\u529b\u3001\u9600\u4f4d\u3001\u6e29\u5ea6\u548c ESD \u56de\u8def\u5e38\u4f4d\u4e8e hazardous area\uff0c\u672c\u5b89\u6216\u9694\u7206\u7cfb\u7edf\u7684\u5b8c\u6574 loop documentation \u6bd4\u201c\u7535\u7f06\u989c\u8272\u201d\u66f4\u91cd\u8981\u3002<\/p><\/div>\n<div class=\"app\"><h3>Analyser \/ metering<\/h3><p>\u4f4e\u7535\u5e73\u6216\u8109\u51b2\u4fe1\u53f7\u66f4\u5173\u6ce8 screen\u3001pair lay\u3001capacitance\u3001impedance \u548c separation from VFD\/power cable\u3002<\/p><\/div>\n<\/div>\n<\/section>\n\n\n<div class=\"svg\"><svg viewBox=\"0 0 1900 1150\" role=\"img\" aria-label=\"Instrumentation cable applications in ports mining and process plants\">\n<rect width=\"1900\" height=\"1150\" fill=\"#06131b\"\/><text x=\"60\" y=\"65\" fill=\"#55dff7\" font-family=\"Arial\" font-size=\"38\" font-weight=\"700\">\u6e2f\u53e3\u3001\u77ff\u5c71\u4e0e\u6d41\u7a0b\u5de5\u4e1a\uff1aBS 5308-style \u4eea\u8868\u7535\u7f06\u5b9e\u9645\u8fde\u63a5\u4ec0\u4e48\uff1f<\/text>\n<text x=\"60\" y=\"108\" fill=\"#adc4ce\" font-family=\"Arial\" font-size=\"20\">DCS \/ PLC \/ ESD \/ SIS \u4e0e\u73b0\u573a transmitter\u3001valve\u3001analyser\u3001weighing\u3001temperature\u3001level\u3001pressure \u7684\u56fa\u5b9a\u4fe1\u53f7\u94fe\u3002<\/text>\n<g font-family=\"Arial\" fill=\"#eaf6f8\">\n<rect x=\"70\" y=\"190\" width=\"530\" height=\"730\" rx=\"18\" fill=\"#0b222d\" stroke=\"#55dff7\" stroke-width=\"5\"\/><text x=\"140\" y=\"250\" font-size=\"28\" fill=\"#55dff7\" font-weight=\"700\">Process plant \/ tank farm<\/text><rect x=\"130\" y=\"420\" width=\"155\" height=\"210\" fill=\"#294950\" stroke=\"#d9edf0\" stroke-width=\"6\"\/><rect x=\"350\" y=\"390\" width=\"150\" height=\"240\" rx=\"70\" fill=\"#173541\" stroke=\"#a6ded9\" stroke-width=\"7\"\/><path d=\"M285 520H350\" stroke=\"#d88d47\" stroke-width=\"18\"\/><text x=\"115\" y=\"800\" font-size=\"18\">pressure \/ flow \/ level \/ valve position \/ ESD<\/text>\n<rect x=\"685\" y=\"190\" width=\"530\" height=\"730\" rx=\"18\" fill=\"#0b222d\" stroke=\"#f0c865\" stroke-width=\"5\"\/><text x=\"770\" y=\"250\" font-size=\"28\" fill=\"#f0c865\" font-weight=\"700\">Port conveyor \/ shiploader<\/text><path d=\"M750 650H1140\" stroke=\"#d9edf0\" stroke-width=\"20\"\/><circle cx=\"820\" cy=\"650\" r=\"42\" fill=\"#173541\" stroke=\"#55dff7\" stroke-width=\"6\"\/><circle cx=\"1080\" cy=\"650\" r=\"42\" fill=\"#173541\" stroke=\"#55dff7\" stroke-width=\"6\"\/><rect x=\"870\" y=\"400\" width=\"180\" height=\"100\" fill=\"#294950\"\/><path d=\"M960 500V610\" stroke=\"#d88d47\" stroke-width=\"16\"\/><text x=\"730\" y=\"800\" font-size=\"18\">belt speed \/ chute level \/ pull-cord \/ vibration \/ limit switch<\/text>\n<rect x=\"1300\" y=\"190\" width=\"530\" height=\"730\" rx=\"18\" fill=\"#0b222d\" stroke=\"#a6ded9\" stroke-width=\"5\"\/><text x=\"1400\" y=\"250\" font-size=\"28\" fill=\"#a6ded9\" font-weight=\"700\">Mining \/ dewatering<\/text><path d=\"M1360 650 L1460 420 L1570 650 L1680 370 L1770 650\" fill=\"none\" stroke=\"#6d8791\" stroke-width=\"20\"\/><rect x=\"1430\" y=\"690\" width=\"290\" height=\"85\" fill=\"#294950\" stroke=\"#55dff7\" stroke-width=\"6\"\/><text x=\"1350\" y=\"840\" font-size=\"18\">pump status \/ sump level \/ bearing temp \/ gas \/ pressure<\/text>\n<rect x=\"90\" y=\"985\" width=\"1720\" height=\"95\" rx=\"12\" fill=\"#081b24\" stroke=\"#315b6f\"\/><text x=\"125\" y=\"1025\" font-size=\"20\" fill=\"#ffcf9c\">\u56fa\u5b9a field junction box \u2192 marshalling cabinet \u6bb5\u9002\u5408 BS 5308-style\uff1b\u968f\u5cb8\u6865 trolley\u3001\u5377\u7b52\u6216\u79fb\u52a8\u8bbe\u5907\u53cd\u590d\u8fd0\u52a8\u7684\u4eea\u8868\u56de\u8def\u5e94\u6539\u7528\u98de\u7eaf\u9ad8\u67d4\u6027 screened control\/instrument cable\u3002<\/text>\n<\/g><\/svg><div class=\"svg-caption\">Figure 4 \u2014 \u56fa\u5b9a\u4eea\u8868\u4e92\u8fde\u5728\u6e2f\u53e3\u3001\u77ff\u5c71\u4e0e\u6d41\u7a0b\u5de5\u4e1a\u7684\u5178\u578b\u4f4d\u7f6e\u3002<\/div><\/div>\n\n\n<section id=\"dynamic\"><h2>12. Feichun \u98de\u7eaf\u9ad8\u67d4\u6027\u4eea\u8868\u7535\u7f06\uff1a\u62d6\u94fe\u3001\u62d6\u4ee4\u3001\u5377\u7b52\u4e3a\u4ec0\u4e48\u5fc5\u987b\u5355\u72ec\u8bbe\u8ba1<\/h2>\n<p>\u6e2f\u673a\u4e0e\u79fb\u52a8\u77ff\u5c71\u8bbe\u5907\u7ecf\u5e38\u9700\u8981\u8ba9 4\u201320 mA\u3001encoder\u3001Profibus\/fieldbus\u3001limit switch\u3001temperature \u548c safety signals \u968f\u8bbe\u5907\u4e00\u8d77\u8fd0\u52a8\u3002\u6b64\u65f6\u201c\u7b26\u5408 BS5308 \u7684 signal architecture\u201d\u53ea\u89e3\u51b3\u7535\u6c14\u90e8\u5206\uff0c<strong>\u4e0d\u89e3\u51b3\u767e\u4e07\u7ea7\u5f2f\u66f2\u5faa\u73af\u3001\u62c9\u529b\u3001\u626d\u8f6c\u548c\u78e8\u635f<\/strong>\u3002<\/p>\n<div class=\"grid\">\n<div class=\"box\"><h3>Fine-stranded conductor<\/h3><p>\u4f7f\u7528\u771f\u6b63\u4e3a\u5faa\u73af\u5f2f\u66f2\u8bbe\u8ba1\u7684\u7ec6\u5355\u4e1d\u3001\u591a\u675f\u7ede\u5408\u5bfc\u4f53\uff0c\u63a7\u5236 strand migration \u548c\u5c40\u90e8\u5e94\u53d8\uff1b\u4e0d\u80fd\u4ec5\u770b\u5230 Class 5 \u5c31\u5224\u5b9a\u4e3a drag-chain rated\u3002<\/p><\/div>\n<div class=\"box\"><h3>Short \/ controlled lay<\/h3><p>pair lay\u3001bundle lay \u548c\u5c4f\u853d\u5c42\u642d\u63a5\u65b9\u5411\u5171\u540c\u51b3\u5b9a\u52a8\u6001\u65f6\u7684 torsional balance \u4e0e electrical stability\u3002<\/p><\/div>\n<div class=\"box\"><h3>Dynamic screen<\/h3><p>\u666e\u901a Al\/PET foil \u5728\u53cd\u590d\u5f2f\u6298\u4e0b\u53ef\u80fd\u75b2\u52b3\u5f00\u88c2\uff1b\u52a8\u6001\u8bbe\u8ba1\u53ef\u91c7\u7528\u4f18\u5316 foil\u3001braid \u6216 composite screen\uff0c\u5e76\u6d4b\u8bd5\u5faa\u73af\u540e\u7684\u5c4f\u853d\u8fde\u7eed\u6027\u3002<\/p><\/div>\n<div class=\"box\"><h3>Tensile member<\/h3><p>\u5cb8\u6865\u5377\u7b52\u3001\u5782\u76f4 festoon \u4e0e\u77ff\u5c71\u62d6\u66f3\u9700\u8981\u72ec\u7acb\u627f\u529b\u8def\u5f84\uff0c\u907f\u514d transmitter pair \u548c terminal \u627f\u53d7\u6301\u7eed\u673a\u68b0\u5f20\u529b\u3002<\/p><\/div>\n<div class=\"box\"><h3>Abrasion sheath<\/h3><p>\u62d6\u94fe\u3001\u6ed1\u8f6e\u3001\u7164\u7c89\u3001\u77ff\u77f3\u7c89\u548c\u76d0\u96fe\u73af\u5883\u8981\u6c42\u62a4\u5957\u540c\u65f6\u517c\u987e\u78e8\u8017\u3001\u6cb9\u3001UV\u3001\u4f4e\u6e29\u3001\u963b\u71c3\u548c\u8868\u9762\u6469\u64e6\u7279\u6027\u3002<\/p><\/div>\n<div class=\"box\"><h3>Signal-after-flex test<\/h3><p>\u98de\u7eaf\u52a8\u6001\u4eea\u8868\u7535\u7f06\u7684\u9a8c\u8bc1\u91cd\u70b9\u4e0d\u4ec5\u662f\u201c\u4e0d\u65ad\u82af\u201d\uff0c\u8fd8\u8981\u5728\u5faa\u73af\u540e\u590d\u6d4b conductor R\u3001insulation R\u3001capacitance\u3001screen continuity \u548c crosstalk\u3002<\/p><\/div>\n<\/div>\n<p class=\"note ok\"><strong>\u98de\u7eaf\u7684\u5dee\u5f02\u5316\u4ef7\u503c\uff1a<\/strong>\u628a instrumentation electrical design \u4e0e mechanical motion design \u5408\u5e76\uff1a\u5148\u786e\u5b9a C\/R\/EMC\/IS budget\uff0c\u518d\u6839\u636e drag-chain\u3001festoon\u3001reeling\u3001torsion\u3001travel speed \u548c cycle count \u8bbe\u8ba1\u52a8\u6001\u7ed3\u6784\uff0c\u800c\u4e0d\u662f\u62ff\u56fa\u5b9a\u4eea\u8868\u7535\u7f06\u76f4\u63a5\u4e0a\u673a\u3002<\/p>\n<\/section>\n\n\n<div class=\"svg\"><svg viewBox=\"0 0 1900 1080\" role=\"img\" aria-label=\"Fixed instrumentation cable versus dynamic cable applications\">\n<rect width=\"1900\" height=\"1080\" fill=\"#06131b\"\/><text x=\"60\" y=\"65\" fill=\"#55dff7\" font-family=\"Arial\" font-size=\"38\" font-weight=\"700\">\u56fa\u5b9a\u4eea\u8868\u7ebf\u4e0e\u52a8\u6001\u4eea\u8868\u7ebf\uff1a\u98de\u7eaf\u7684\u8bbe\u8ba1\u8fb9\u754c<\/text>\n<text x=\"60\" y=\"108\" fill=\"#adc4ce\" font-family=\"Arial\" font-size=\"20\">\u540c\u6837\u4f20 4\u201320 mA \u6216 digital signal\uff0c\u673a\u68b0\u5bff\u547d\u8bbe\u8ba1\u53ef\u4ee5\u5b8c\u5168\u4e0d\u540c\u3002<\/text>\n<g font-family=\"Arial\" fill=\"#eaf6f8\">\n<rect x=\"75\" y=\"190\" width=\"780\" height=\"710\" rx=\"20\" fill=\"#0b222d\" stroke=\"#55dff7\" stroke-width=\"5\"\/><text x=\"145\" y=\"250\" font-size=\"30\" fill=\"#55dff7\" font-weight=\"700\">BS 5308-style \u00b7 Fixed<\/text><rect x=\"150\" y=\"420\" width=\"170\" height=\"150\" fill=\"#294950\" stroke=\"#d9edf0\" stroke-width=\"6\"\/><rect x=\"625\" y=\"420\" width=\"160\" height=\"150\" fill=\"#294950\" stroke=\"#d9edf0\" stroke-width=\"6\"\/><path d=\"M320 495H625\" stroke=\"#d88d47\" stroke-width=\"22\"\/><text x=\"140\" y=\"700\" font-size=\"19\">\u63a7\u5236\u53d8\u91cf\uff1aC \/ R \/ L\/R \/ screen \/ armour \/ fire \/ environment<\/text>\n<text x=\"140\" y=\"750\" font-size=\"19\">\u5178\u578b\uff1atray\u3001conduit\u3001direct burial\u3001fixed gland entry<\/text>\n<rect x=\"1040\" y=\"190\" width=\"785\" height=\"710\" rx=\"20\" fill=\"#0b222d\" stroke=\"#a6ded9\" stroke-width=\"5\"\/><text x=\"1110\" y=\"250\" font-size=\"30\" fill=\"#a6ded9\" font-weight=\"700\">Feichun Dynamic Instrument Cable<\/text>\n<path d=\"M1110 555H1280 Q1390 555 1390 445 Q1390 350 1510 350 H1770\" fill=\"none\" stroke=\"#334b57\" stroke-width=\"75\" stroke-dasharray=\"50 20\"\/><path d=\"M1110 555H1280 Q1390 555 1390 445 Q1390 350 1510 350 H1770\" fill=\"none\" stroke=\"#d88d47\" stroke-width=\"23\"\/>\n<text x=\"1100\" y=\"700\" font-size=\"19\">\u589e\u52a0\u63a7\u5236\uff1afine-stranded conductor \/ lay \/ tensile member<\/text><text x=\"1100\" y=\"742\" font-size=\"19\">bending cycles \/ torsion \/ acceleration \/ abrasion \/ drag-chain<\/text>\n<rect x=\"90\" y=\"955\" width=\"1720\" height=\"70\" rx=\"10\" fill=\"#081b24\" stroke=\"#315b6f\"\/><text x=\"125\" y=\"998\" font-size=\"20\" fill=\"#ff9297\">\u7981\u6b62\u903b\u8f91\uff1a\u4e0d\u80fd\u56e0\u4e3a\u67d0 BS5308 \u4ea7\u54c1\u91c7\u7528 Class 5 conductor\uff0c\u5c31\u76f4\u63a5\u5ba3\u79f0\u5176\u9002\u5408\u8fde\u7eed\u62d6\u94fe\u6216\u5377\u7b52\uff1b\u52a8\u6001\u8d44\u683c\u5fc5\u987b\u7531\u5b8c\u6574 cable construction + cycle test \u5efa\u7acb\u3002<\/text>\n<\/g><\/svg><div class=\"svg-caption\">Figure 5 \u2014 \u98de\u7eaf\u56fa\u5b9a\u4eea\u8868\u7535\u7f06\u4e0e\u9ad8\u67d4\u6027\u52a8\u6001\u4eea\u8868\u7535\u7f06\u7684\u5de5\u7a0b\u5206\u754c\u3002<\/div><\/div>\n\n\n<section id=\"fire\"><h2>13. LSZH \u4e0e Fire Resistant Instrument Cable\uff1a\u4e24\u4e2a\u4e0d\u540c\u76ee\u6807<\/h2>\n<p>BSI \u5bf9 PAS 5308-1 \u7684\u8bf4\u660e\u660e\u786e\u6307\u51fa\uff1aPAS \u672c\u8eab<strong>\u4e0d\u8986\u76d6 fire performance<\/strong>\uff0c\u4f46\u9879\u76ee\u53ef\u80fd\u53e6\u5916\u8981\u6c42 reaction to fire\uff08\u4f4e\u70df\u3001\u4f4e\u8150\u8680\u3001\u963b\u71c3\uff09\u6216 resistance to fire\uff08circuit integrity\uff09\u3002\u56e0\u6b64\u73b0\u4ee3\u201cBS5308 Mica\/XLPE\/LSZH fire-resistant cable\u201d\u5e94\u89c6\u4e3a\u589e\u52a0\u4e86\u660e\u786e fire barrier \u548c\u76f8\u5173\u706b\u707e\u6d4b\u8bd5\u7684\u9879\u76ee\u4ea7\u54c1\uff0c\u800c\u4e0d\u662f\u539f\u6807\u51c6\u81ea\u52a8\u63d0\u4f9b\u7684\u80fd\u529b\u3002<\/p>\n<div class=\"compare-grid\">\n<div class=\"compare\"><h3>LSZH<\/h3><p>\u91cd\u70b9\u662f\u70df\u3001\u5364\u7d20\/\u9178\u6027\u6c14\u4f53\u4e0e\u8150\u8680\u6027\uff0c\u4ee5\u53ca\u963b\u71c3\u7b49\u7ea7\uff1b\u76ee\u6807\u662f\u6539\u5584\u4eba\u5458\u758f\u6563\u548c\u8bbe\u5907\u4e8c\u6b21\u8150\u8680\u98ce\u9669\u3002<\/p><\/div>\n<div class=\"compare\"><h3>Fire resistant<\/h3><p>\u91cd\u70b9\u662f\u5728\u89c4\u5b9a\u706b\u7130\u3001\u673a\u68b0\u51b2\u51fb\u3001\u6c34\u55b7\u6dcb\u7b49\u6761\u4ef6\u4e0b\u7ee7\u7eed\u4f20\u8f93\u5173\u952e\u63a7\u5236\/\u62a5\u8b66\u4fe1\u53f7\uff1b\u5fc5\u987b\u5f15\u7528\u5177\u4f53\u6d4b\u8bd5\u6807\u51c6\u548c\u6301\u7eed\u65f6\u95f4\u3002<\/p><\/div>\n<div class=\"compare\"><h3>SIS\/ESD<\/h3><p>\u5982\u679c\u5b89\u5168\u529f\u80fd\u4f9d\u8d56\u73b0\u573a\u7535\u7f06\u5728\u706b\u707e\u671f\u95f4\u4fdd\u6301\u56de\u8def\u5b8c\u6574\uff0c\u5e94\u7531 functional safety + fire strategy \u5171\u540c\u5b9a\u4e49\u8981\u6c42\u3002<\/p><\/div>\n<div class=\"compare\"><h3>Mica layer<\/h3><p>\u4e91\u6bcd\u5e26\u5e38\u7528\u4e8e\u5f62\u6210\u9ad8\u6e29\u7535\u7edd\u7f18\u5c4f\u969c\uff0c\u4f46\u6210\u54c1\u7535\u7f06\u662f\u5426\u201c\u8010\u706b\u201d\u4ecd\u5fc5\u987b\u901a\u8fc7\u5bf9\u5e94\u6210\u54c1\u6d4b\u8bd5\uff0c\u4e0d\u80fd\u53ea\u770b\u6750\u6599\u3002<\/p><\/div>\n<\/div>\n<\/section>\n\n<section id=\"compliance\"><h2>14. \u98de\u7eaf\u7535\u7f06\u7684\u8ba4\u8bc1\u4e0e\u5168\u7403\u9879\u76ee\u652f\u6301<\/h2>\n<p>\u98de\u7eaf\u7535\u7f06\u53ef\u56f4\u7ed5\u9879\u76ee\u8981\u6c42\u914d\u7f6e\u9002\u7528\u7684 <strong>ATEX\u3001IECEx\u3001VDE\u3001CE\u3001UKCA\u3001EAC \u4ee5\u53ca Russian Fire Safety Certificate<\/strong> \u6587\u4ef6\u8def\u5f84\uff0c\u7528\u4e8e\u91cd\u5de5\u4e1a\u3001\u77ff\u5c71\u3001\u6e2f\u673a\u3001\u77f3\u5316\u3001\u63a7\u5236\u4e0e\u5b89\u5168\u4eea\u8868\u7cfb\u7edf\u3002\u8ba4\u8bc1\u8303\u56f4\u5fc5\u987b\u4e0e\u5177\u4f53 cable construction\u3001gland\/accessory\u3001hazardous-area installation \u548c\u76ee\u7684\u5e02\u573a\u4e00\u81f4\u3002<\/p>\n<div class=\"cards\">\n<div class=\"card\"><div class=\"value\">IECEx<\/div><div>Ex \u8bbe\u5907\/\u7ec4\u4ef6\/\u603b\u6210\u9700\u8981\u53ef\u6838\u9a8c\u7684\u7b2c\u4e09\u65b9\u8bc1\u4e66\uff1b\u7535\u7f06\u56de\u8def\u8fd8\u8981\u6ee1\u8db3 installation\/system assessment\u3002<\/div><\/div>\n<div class=\"card gold\"><div class=\"value\">ATEX<\/div><div>\u7528\u4e8e\u6b27\u76df\u7206\u70b8\u6027\u73af\u5883\u8bbe\u5907\/\u4fdd\u62a4\u7cfb\u7edf\u7684\u6cd5\u89c4\u6846\u67b6\uff1b\u4e0d\u80fd\u628a\u666e\u901a\u84dd\u8272\u4eea\u8868\u7535\u7f06\u5ba3\u4f20\u6210\u72ec\u7acb ATEX protection concept\u3002<\/div><\/div>\n<div class=\"card green\"><div class=\"value\">VDE \/ CE \/ UKCA<\/div><div>\u6309\u5b9e\u9645\u4ea7\u54c1\u6807\u51c6\u4e0e\u9500\u552e\u5e02\u573a\u63d0\u4f9b\u9002\u7528\u7684\u6d4b\u8bd5\/\u7b26\u5408\u6027\u6587\u4ef6\u3002<\/div><\/div>\n<div class=\"card red\"><div class=\"value\">EAC \/ RF Fire<\/div><div>\u6b27\u4e9a\u4e0e\u4fc4\u7f57\u65af\u9879\u76ee\u6309\u578b\u53f7\u3001\u8bc1\u4e66\u8303\u56f4\u3001\u5236\u9020\u5730\u70b9\u548c\u6d88\u9632\u8981\u6c42\u9010\u9879\u6838\u9a8c\u3002<\/div><\/div>\n<\/div>\n<p>IECEx \u5b98\u65b9\u5f3a\u8c03\u8ba4\u8bc1\u5e94\u901a\u8fc7\u5176 Online Certificate System \u6838\u9a8c\uff1bIEC 60079-14:2024 \u5219\u628a hazardous-area electrical installation \u7684\u8bbe\u8ba1\u3001\u8bbe\u5907\u9009\u62e9\u3001\u5b89\u88c5\u548c\u521d\u59cb\u68c0\u67e5\u7eb3\u5165\u5b8c\u6574\u8981\u6c42\u3002<a href=\"https:\/\/www.iecex.com\/certified-equipment-scheme\/overview\/\" target=\"_blank\" rel=\"nofollow noopener\">[IECEx]<\/a> <a href=\"https:\/\/webstore.iec.ch\/en\/publication\/66049\" target=\"_blank\" rel=\"nofollow noopener\">[IEC 60079-14]<\/a><\/p>\n<\/section>\n\n<section id=\"installation\"><h2>15. \u5b89\u88c5\u4e0e\u7aef\u63a5\uff1a\u6027\u80fd\u5f80\u5f80\u5728\u6700\u540e 50 mm \u88ab\u7834\u574f<\/h2>\n<div class=\"grid\">\n<div class=\"box\"><h3>\u4fdd\u6301 pair twist<\/h3><p>\u8fdb terminal \u524d\u4e0d\u8981\u8fc7\u65e9\u89e3\u7ede\u3002pair \u88ab\u5c55\u5f00\u8fc7\u957f\u4f1a\u589e\u52a0\u9762\u79ef\u3001\u5171\u6a21\u8026\u5408\u548c pair-to-pair crosstalk\u3002<\/p><\/div>\n<div class=\"box\"><h3>ICAM drain management<\/h3><p>\u6bcf\u4e2a individual drain \u5fc5\u987b\u6709\u6e05\u6670\u7f16\u53f7\u548c termination philosophy\uff0c\u4e0d\u80fd\u4e3a\u4e86\u65bd\u5de5\u65b9\u4fbf\u5168\u90e8\u5728 field junction box \u6df7\u63a5\u3002<\/p><\/div>\n<div class=\"box\"><h3>360\u00b0 vs pigtail<\/h3><p>\u4f4e\u9891\u6a21\u62df screen \u548c\u9ad8\u9891 EMC screen \u7684\u7aef\u63a5\u65b9\u6cd5\u53ef\u80fd\u4e0d\u540c\uff1bpigtail \u5728\u9ad8\u9891\u4f1a\u8868\u73b0\u51fa\u660e\u663e\u7535\u611f\u3002<\/p><\/div>\n<div class=\"box\"><h3>SWA gland<\/h3><p>Type 2 \u7684 gland \u5fc5\u987b\u540c\u65f6\u5339\u914d outer sheath OD \u548c armour range\uff0c\u5e76\u4fdd\u8bc1\u673a\u68b0\u5939\u6301\u548c earth continuity\u3002<\/p><\/div>\n<div class=\"box\"><h3>\u4e0e\u52a8\u529b\u7535\u7f06\u5206\u79bb<\/h3><p>\u907f\u514d\u957f\u8ddd\u79bb\u4e0e VFD motor cable\u3001\u9ad8 di\/dt switching line \u5e73\u884c\uff1b\u4e0d\u53ef\u907f\u514d\u4ea4\u53c9\u65f6\u4f18\u5148\u63a5\u8fd1 90\u00b0\u3002<\/p><\/div>\n<div class=\"box\"><h3>Megger voltage<\/h3><p>\u4eea\u8868\u5361\u4ef6\u3001barrier\u3001surge protector \u53ef\u80fd\u4e0d\u5141\u8bb8\u76f4\u63a5\u627f\u53d7\u9ad8\u538b\u7edd\u7f18\u6d4b\u8bd5\uff1b\u6d4b\u8bd5\u524d\u5e94\u65ad\u5f00\u654f\u611f\u7535\u5b50\u8bbe\u5907\u5e76\u9075\u5b88\u8bbe\u5907\u8bf4\u660e\u4e66\u3002<\/p><\/div>\n<\/div>\n<\/section>\n\n<section id=\"fmea\"><h2>16. \u5178\u578b\u5931\u6548\u6a21\u5f0f\u4e0e\u8bca\u65ad<\/h2>\n<div class=\"fmea-grid\">\n<div class=\"fmea\"><h3>4\u201320mA \u9971\u548c\/\u4e0d\u8db3<\/h3><p>\u957f\u7ebf\u538b\u964d + barrier drop \u4f7f transmitter headroom \u4e0d\u8db3\u3002\u63a7\u5236\uff1aworst-case loop voltage budget\u3002<\/p><\/div>\n<div class=\"fmea\"><h3>\u6a21\u62df\u91cf\u968f\u673a\u6f02\u79fb<\/h3><p>screen floating\u3001\u53cc\u7aef\u4f4e\u9891 ground loop \u6216\u9760\u8fd1 VFD\u3002\u63a7\u5236\uff1a\u5206\u79bb\u8def\u7531\u3001\u68c0\u67e5\u5c4f\u853d\u63a5\u5730\u4e0e common-mode voltage\u3002<\/p><\/div>\n<div class=\"fmea\"><h3>\u901a\u9053\u95f4\u4e32\u6270<\/h3><p>CAM \u7528\u4e8e\u8fc7\u9ad8\u5bc6\u5ea6\u4f4e\u7535\u5e73\u4fe1\u53f7\u3001pair \u89e3\u7ede\u8fc7\u957f\u6216 ICAM individual screens \u9519\u63a5\u3002\u63a7\u5236\uff1aICAM + \u6b63\u786e\u7aef\u63a5\u3002<\/p><\/div>\n<div class=\"fmea\"><h3>IS \u56de\u8def\u8ba4\u8bc1\u5931\u8d25<\/h3><p>\u7535\u7f06 C\/L \u6ca1\u7eb3\u5165 entity calculation\uff0c\u6216\u6539\u957f\u7ebf\u8def\u540e\u672a\u91cd\u65b0\u6838\u7b97\u3002\u63a7\u5236\uff1achange management + loop dossier\u3002<\/p><\/div>\n<div class=\"fmea\"><h3>\u57cb\u5730\u673a\u68b0\u635f\u4f24<\/h3><p>Type 1 \u65e0\u94e0\u88c5\u7528\u4e8e\u9ad8\u98ce\u9669\u8def\u7ebf\u3002\u63a7\u5236\uff1aType 2 \/ conduit \/ tray protection\u3002<\/p><\/div>\n<div class=\"fmea\"><h3>\u52a8\u6001\u65ad\u82af<\/h3><p>\u56fa\u5b9a BS5308 cable \u7528\u4e8e\u62d6\u94fe\/\u5377\u7b52\u3002\u63a7\u5236\uff1a\u98de\u7eaf\u4e13\u7528 dynamic instrumentation construction\u3002<\/p><\/div>\n<div class=\"fmea\"><h3>\u5c4f\u853d\u5931\u53bb\u8fde\u7eed\u6027<\/h3><p>Al\/PET \u53cd\u590d\u5f2f\u6298\u6216 drain wire \u5728\u7aef\u63a5\u5904\u75b2\u52b3\u3002\u63a7\u5236\uff1acontinuity trend + dynamic screen design\u3002<\/p><\/div>\n<div class=\"fmea\"><h3>\u706b\u707e\u7b56\u7565\u4e0d\u5339\u914d<\/h3><p>\u628a LSZH \u5f53\u4f5c fire resistant\u3002\u63a7\u5236\uff1a\u660e\u786e reaction-to-fire \u4e0e circuit-integrity \u4e24\u5957\u6307\u6807\u3002<\/p><\/div>\n<\/div>\n<\/section>\n\n<section id=\"faq\"><h2>17. FAQ\uff1a\u5de5\u7a0b\u5e08\u6700\u5e38\u641c\u7d22\u7684 BS 5308 \u95ee\u9898<\/h2>\n<div class=\"grid\">\n<div class=\"box\"><h3>BS 5308 \u73b0\u5728\u8fd8\u6709\u6548\u5417\uff1f<\/h3><p>\u539f BS 5308 \u5df2\u64a4\u9500\uff1bPAS 5308-1\/-2 \u4e5f\u4e8e 2024-04-03 \u64a4\u9500\u3002\u5f53\u524d BSI \u5217\u51fa\u7684 instrumentation\/control cable \u5206\u89c4\u8303\u662f BS EN 50288-7:2005\uff08Current, Under Review\uff09\u3002<\/p><\/div>\n<div class=\"box\"><h3>Part 1 \u548c Part 2 \u6700\u5927\u533a\u522b\uff1f<\/h3><p>\u4f20\u7edf\u4f53\u7cfb\u91cc Part 1 \u662f PE insulation\uff0cPart 2 \u662f PVC insulation\u3002\u73b0\u4ee3\u5e02\u573a\u884d\u751f XLPE\/LSZH \u7b49\u6784\u9020\u5e94\u5355\u72ec\u8bf4\u660e\u3002<\/p><\/div>\n<div class=\"box\"><h3>Type 1 \u548c Type 2\uff1f<\/h3><p>Type 1 \u662f\u975e\u94e0\u88c5\uff1bType 2 \u589e\u52a0 SWA \u7b49\u673a\u68b0\u4fdd\u62a4\uff0c\u66f4\u9002\u5408\u5916\u90e8\u673a\u68b0\u98ce\u9669\u8f83\u9ad8\u7684\u56fa\u5b9a\u8def\u7ebf\u3002<\/p><\/div>\n<div class=\"box\"><h3>CAM \u4e0e ICAM \u600e\u4e48\u9009\uff1f<\/h3><p>\u5916\u90e8 EMI \u4e3a\u4e3b\u3001\u4fe1\u53f7\u540c\u8d28\u65f6 CAM \u901a\u5e38\u8db3\u591f\uff1b\u4f4e\u7535\u5e73\u591a\u56de\u8def\u3001\u4e32\u6270\u654f\u611f\u6216\u5b89\u5168\u4eea\u8868\u5bc6\u96c6\u65f6\u4f18\u5148\u8bc4\u4f30 ICAM\u3002<\/p><\/div>\n<div class=\"box\"><h3>\u4e3a\u4ec0\u4e48 PE \u6bd4 PVC \u66f4\u9002\u5408\u957f\u8ddd\u79bb\uff1f<\/h3><p>\u516c\u5f00 benchmark \u663e\u793a PE-style mutual capacitance \u660e\u663e\u4f4e\u4e8e PVC-style\uff0c\u901a\u5e38\u4e5f\u5177\u6709\u66f4\u9ad8\u7edd\u7f18\u7535\u963b\uff0c\u5bf9 long-run analogue\/IS \u66f4\u6709\u5229\u3002<\/p><\/div>\n<div class=\"box\"><h3>0.5mm\u00b2 \u4f20 4\u201320mA \u53ef\u4ee5 1km \u5417\uff1f<\/h3><p>\u4ec5\u5bfc\u7ebf 20mA \u538b\u964d\u7ea6 1.56V\uff1b\u662f\u5426\u53ef\u7528\u8fd8\u53d6\u51b3\u4e8e supply\u3001transmitter\u3001barrier\u3001receiver \u548c\u6e29\u5ea6\u4e0b\u7535\u963b\u7684\u5b8c\u6574 voltage budget\u3002<\/p><\/div>\n<div class=\"box\"><h3>\u84dd\u8272 cable \u5c31\u662f intrinsically safe \u5417\uff1f<\/h3><p>\u4e0d\u662f\u3002\u989c\u8272\u7528\u4e8e\u8bc6\u522b\uff1b\u672c\u5b89\u5b89\u5168\u6027\u6765\u81ea barrier\/device entity parameters\u3001cable C\/L\u3001\u9694\u79bb\u3001\u5b89\u88c5\u4e0e\u6587\u4ef6\u7684\u5b8c\u6574\u7cfb\u7edf\u3002<\/p><\/div>\n<div class=\"box\"><h3>\u5c4f\u853d\u5e94\u8be5\u5355\u7aef\u8fd8\u662f\u53cc\u7aef\u63a5\u5730\uff1f<\/h3><p>\u4f4e\u9891\u6a21\u62df\u5e38\u7528\u5355\u70b9\u63a5\u5730\uff0c\u9ad8\u9891 EMC \u53ef\u80fd\u9700\u8981\u53cc\u7aef\/\u591a\u70b9\u4f4e\u963b\u6297 bonding\u3002\u5fc5\u987b\u9075\u5faa\u9879\u76ee grounding philosophy\uff0c\u800c\u975e\u4e00\u53e5\u901a\u7528\u89c4\u5219\u3002<\/p><\/div>\n<div class=\"box\"><h3>BS5308 \u80fd\u8fdb\u62d6\u94fe\/\u5377\u7b52\u5417\uff1f<\/h3><p>\u4e0d\u80fd\u4ec5\u51ed\u8be5\u6807\u51c6\u3002\u9700\u8981\u4e13\u95e8 high-flex instrumentation cable\uff0c\u5e76\u9a8c\u8bc1 bending cycle\u3001torsion\u3001tension\u3001screen continuity \u4e0e\u7535\u6c14\u53c2\u6570\u6f02\u79fb\u3002<\/p><\/div>\n<\/div>\n<\/section>\n\n<section id=\"sources\"><h2>18. \u4e3b\u8981\u516c\u5f00\u6280\u672f\u8d44\u6599<\/h2>\n<ul class=\"source-list\">\n<li><a href=\"https:\/\/knowledge.bsigroup.com\/products\/control-and-instrumentation-cables-specification-for-polyethylene-insulated-cables\" target=\"_blank\" rel=\"nofollow noopener\">BSI \u2014 PAS 5308-1:2009<\/a>\uff1aPE insulated control\/instrumentation cable\uff0c\u5df2\u4e8e 2024-04-03 \u64a4\u9500\u3002<\/li>\n<li><a href=\"https:\/\/knowledge.bsigroup.com\/products\/control-and-instrumentation-cables-specification-for-pvc-insulated-cables\" target=\"_blank\" rel=\"nofollow noopener\">BSI \u2014 PAS 5308-2:2009<\/a>\uff1aPVC insulated control\/instrumentation cable\uff0c\u5df2\u4e8e 2024-04-03 \u64a4\u9500\uff1b300\/500 V \u8fb9\u754c\u3002<\/li>\n<li><a href=\"https:\/\/knowledge.bsigroup.com\/products\/multi-element-metallic-cables-used-in-analogue-and-digital-communication-and-control-sectional-specification-for-instrumentation-and-control-cables\" target=\"_blank\" rel=\"nofollow noopener\">BSI \u2014 BS EN 50288-7:2005<\/a>\uff1a\u5f53\u524d instrumentation\/control multi-element cable sectional specification\u3002<\/li>\n<li><a href=\"https:\/\/knowledge.bsigroup.com\/products\/multi-element-metallic-cables-used-in-analogue-and-digital-communication-and-control-generic-specification\" target=\"_blank\" rel=\"nofollow noopener\">BSI \u2014 BS EN 50288-1:2013<\/a>\uff1amulti-element metallic cable generic specification\u3002<\/li>\n<li><a href=\"https:\/\/www.elandcables.com\/electrical-cable-and-accessories\/cables-by-standard\/bs5308-cable\" target=\"_blank\" rel=\"nofollow noopener\">Eland \u2014 BS5308\/PAS5308 market cross-reference<\/a>\uff1alegacy\/current \u5e02\u573a\u540d\u79f0\u4e0e Part 1\/2 \u8def\u7ebf\u3002<\/li>\n<li><a href=\"https:\/\/www.elandcables.com\/cables\/bs5308-pas5308-part-1-type-1-cables\" target=\"_blank\" rel=\"nofollow noopener\">Eland \u2014 Part 1 Type 1<\/a>\uff1aCAM\/ICAM\u3001PE\/XLPE\/LSZH \u4e0e\u5e38\u89c1 0.5\u20132.5mm\u00b2 \/ pair configurations\u3002<\/li>\n<li><a href=\"https:\/\/www.elandcables.com\/cables\/bs5308-pas-5308-part-1-type-2-cables\" target=\"_blank\" rel=\"nofollow noopener\">Eland \u2014 Part 1 Type 2<\/a>\uff1aSWA armoured construction \u4e0e common sizes\u3002<\/li>\n<li><a href=\"https:\/\/www.elandcables.com\/cables\/bs5308-pas-5308-part-2-type-1-2-cables\" target=\"_blank\" rel=\"nofollow noopener\">Eland \u2014 Part 2 Type 1\/2<\/a>\uff1aPVC insulated CAM\/ICAM\/SWA construction\u3002<\/li>\n<li><a href=\"https:\/\/webstore.iec.ch\/en\/publication\/66049\" target=\"_blank\" rel=\"nofollow noopener\">IEC \u2014 IEC 60079-14:2024<\/a>\uff1a\u7206\u70b8\u6027\u73af\u5883\u7535\u6c14\u5b89\u88c5\u8bbe\u8ba1\u3001\u9009\u62e9\u3001\u5b89\u88c5\u4e0e\u521d\u59cb\u68c0\u67e5\u3002<\/li>\n<li><a href=\"https:\/\/www.iecex.com\/certified-equipment-scheme\/overview\/\" target=\"_blank\" rel=\"nofollow noopener\">IECEx Certified Equipment Scheme<\/a>\uff1aEx equipment\/component\/assembly \u7b2c\u4e09\u65b9\u8ba4\u8bc1\u6846\u67b6\u3002<\/li>\n<\/ul>\n<div class=\"warn\"><strong>\u5de5\u7a0b\u514d\u8d23\u58f0\u660e\uff1a<\/strong>\u672c\u6587\u7528\u4e8e\u641c\u7d22\u3001\u6280\u672f\u9884\u9009\u3001EPC \u6f84\u6e05\u548c legacy replacement \u5206\u6790\u3002BS\/PAS 5308 \u5df2\u64a4\u9500\uff1b\u65b0\u9879\u76ee\u5e94\u6839\u636e BS EN 50288-7\u3001\u9879\u76ee\u89c4\u8303\u3001\u5177\u4f53 approved datasheet\u3001hazardous-area design\u3001functional safety\u3001fire strategy \u548c\u5f53\u5730\u6cd5\u89c4\u5b8c\u6210\u6700\u7ec8\u9009\u578b\u3002\u516c\u5f00 benchmark \u6570\u636e\u4e0d\u80fd\u66ff\u4ee3\u98de\u7eaf\u6b63\u5f0f\u4ea7\u54c1\u4fdd\u8bc1\u503c\u3002<\/div>\n<\/section>\n\n<footer><div class=\"wrap\"><div class=\"footer-grid\">\n<div><h2>Feichun Cable \u98de\u7eaf\u7535\u7f06 \u2014 \u5de5\u7a0b\u6280\u672f\u8054\u7cfb<\/h2><p>\u7528\u4e8e BS 5308 legacy replacement\u3001BS EN 50288-7 \u4eea\u8868\u7535\u7f06\u3001CAM\/ICAM\u3001SWA\u3001LSZH\u3001IS \u56de\u8def\u4e0e\u6e2f\u673a\/\u77ff\u5c71\u9ad8\u67d4\u6027\u52a8\u6001\u4eea\u8868\u7535\u7f06\u5f00\u53d1\u3002<\/p>\n<div class=\"contact\"><div><strong>Email<\/strong><br><a href=\"\/cdn-cgi\/l\/email-protection#d581b0b6bd95b3b0bcb6bda0bbb6b4b7b9b0a6fbb6bab8\"><span class=\"__cf_email__\" data-cfemail=\"97c3f2f4ffd7f1f2fef4ffe2f9f4f6f5fbf2e4b9f4f8fa\">[email protected]<\/span><\/a><\/div><div><strong>Phone<\/strong><br>+86 13855123218<\/div><\/div><\/div>\n<div><h3>Document boundary<\/h3><p class=\"small\">\u672c\u9875\u9762\u4fdd\u7559 \u201cBS 5308 Instrument Cable\u201d \u4f5c\u4e3a\u56fd\u9645\u5de5\u7a0b\u641c\u7d22\u548c legacy drawing \u4ea4\u53c9\u5f15\u7528\uff1b\u4e0d\u5c06\u5df2\u64a4\u9500\u7684 BS\/PAS 5308 \u9519\u5199\u4e3a\u73b0\u884c\u6807\u51c6\u3002<\/p><p class=\"small\">\u00a9 Feichun Cable \u98de\u7eaf\u7535\u7f06 \u00b7 BS 5308 Instrument Cable Series \u00b7 06 August 2026<\/p><\/div>\n<\/div><\/div><\/footer>\n\n<\/main><script data-cfasync=\"false\" src=\"\/cdn-cgi\/scripts\/5c5dd728\/cloudflare-static\/email-decode.min.js\"><\/script><\/body><\/html>\n","protected":false},"excerpt":{"rendered":"BS 5308 \u4ecd\u7136\u662f\u56fd\u9645 EPC\u3001\u77f3\u5316\u3001\u6e2f\u53e3\u548c\u77ff\u5c71\u9879\u76ee\u91cc\u975e\u5e38\u5e38\u89c1\u7684\u4eea\u8868\u7535\u7f06\u641c\u7d22\u8bcd\uff0c\u4f46\u5b83\u5df2\u7ecf\u4e0d\u662f\u5f53\u524d\u82f1\u56fd\u65b0\u9879\u76ee\u7684\u73b0\u884c\u6807\u51c6\u53f7\u3002\u5386\u53f2 BS 5308 \u540e\u6765\u7531 PAS 5308 \u5ef6\u7eed\u8be6\u7ec6\u5c3a\u5bf8\u548c\u66f4\u9ad8\u5de5\u4f5c\u7535\u538b\u573a\u666f\uff1bPAS 5308-1:2009 \u4e0e PAS 5308-2:2009 \u53c8\u5728 2024 \u5e74 4 \u6708 3 \u65e5\u64a4\u9500\u3002\u5f53\u524d BSI \u628a BS EN 50288-7:2005 \u5217\u4e3a Current, Under Review\u3002","protected":false},"author":1,"featured_media":25710,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"csco_singular_sidebar":"left","csco_page_header_type":"title","csco_page_load_nextpost":"","footnotes":""},"categories":[13249,66,56],"tags":[16,111,17],"class_list":["post-25708","post","type-post","status-publish","format-standard","has-post-thumbnail","category-bs-british-standard-cable","category-common-problems-encountered-in-cable-applications","category-reeling-cable","tag-din-vde-0250","tag-mining-cable","tag-reeling-cable","cs-entry"],"_links":{"self":[{"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/25708","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/comments?post=25708"}],"version-history":[{"count":2,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/25708\/revisions"}],"predecessor-version":[{"id":25720,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/posts\/25708\/revisions\/25720"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/media\/25710"}],"wp:attachment":[{"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/media?parent=25708"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/categories?post=25708"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/feichuncables.com\/blog\/wp-json\/wp\/v2\/tags?post=25708"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}

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