{"id":9204,"date":"2019-02-05T12:58:16","date_gmt":"2019-02-05T04:58:16","guid":{"rendered":"https:\/\/blog.wika.cn\/zh\/?p=9204"},"modified":"2019-02-25T09:58:36","modified_gmt":"2019-02-25T01:58:36","slug":"ex-protection-the-most-common-ignition-protection-types-for-sensors-in-gas-hazardous-areas","status":"publish","type":"post","link":"https:\/\/blog.wika.cn\/zh\/knowhow\/ex-protection-the-most-common-ignition-protection-types-for-sensors-in-gas-hazardous-areas\/","title":{"rendered":"\u9632\u7206\u2014\u2014\u6c14\u4f53\u5371\u9669\u533a\u57df\u4f20\u611f\u5668\u6700\u5e38\u89c1\u7684\u5f15\u71c3\u6e90\u9632\u62a4\u7c7b\u578b"},"content":{"rendered":"

\u901a\u8fc7\u4e0d\u540c\u7684\uff0c\u7279\u5b9a\u7684\u8bbe\u8ba1\u7406\u5ff5\uff0c\u53ef\u5b9e\u73b0\u4f20\u611f\u5668\u5728\u5371\u9669\u533a\u57df\u4e2d\u7684\u4f7f\u7528\uff0c\u6b64\u7c7b\u8bbe\u8ba1\u6982\u5ff5\u88ab\u79f0\u4e3a\u9632\u7206\u578b\u8bbe\u8ba1\u3002\u4e0b\u6587\u4e2d\u5c06\u7b80\u8981\u4ecb\u7ecd\u6c14\u4f53\u5371\u9669\u533a\u57df\u4f20\u611f\u5668\u6700\u5e38\u89c1\u7684\u9632\u7206\u7c7b\u578b\u3002<\/strong><\/p>\n\n\n\n\n\n\n\n
\n

\u00a0 \u9632\u7206\u7c7b\u578b<\/strong><\/p>\n<\/td>\n

\n

\u9632\u62a4\u539f\u7406<\/strong><\/p>\n<\/td>\n

\n

\u4f7f\u7528\u533a\u57df<\/strong><\/p>\n<\/td>\n<\/tr>\n<\/thead>\n

\n

\u00a0\u9694\u7206 \u201cd\u201d<\/p>\n

\u00a0IEC 60079-1
\n\u00a0EN 60079-1
\n\u00a0UL 60079-1<\/p>\n<\/td>\n

\n

\n\u5728\u5916\u58f3\u5185\/\u4e0a\u91c7\u7528\u5f3a\u5316\u63aa\u65bd\uff0c\u9632\u6b62\u7535\u6c14\u4eea\u8868\u5185\u7684\u7206\u70b8\u8513\u5ef6\u5230\u5468\u56f4\u7206\u70b8\u6027\u73af\u5883\u4e2d\u3002<\/p>\n

 <\/p>\n<\/td>\n

\n

Ex da = 0, 1, 2\u533a<\/p>\n

Ex db = 1, 2\u533a<\/p>\n

Ex dc = 2\u533a<\/p>\n<\/td>\n<\/tr>\n

\n

\u00a0\u672c\u8d28\u5b89\u5168 \u201ci\u201d<\/p>\n

\u00a0IEC 60079-11
\n\u00a0EN 60079-11
\n\u00a0UL 60079-11<\/p>\n<\/td>\n

\n

\u9650\u5236\u7535\u6c14\u4eea\u8868\u7535\u8def\u5185\u7684\u80fd\u91cf\uff08\u529f\u7387\u3001\u7535\u6d41\u548c\u7535\u538b\uff09\uff0c\u786e\u4fdd\u706b\u82b1\u6216\u70ed\u6548\u5e94\u4e0d\u4f1a\u89e6\u53d1\u7206\u70b8\u6027\u73af\u5883\u88ab\u70b9\u71c3\u3002<\/p>\n<\/td>\n

\n

Ex ia = 0, 1, 2\u533a<\/p>\n

Ex ib = 1, 2\u533a<\/p>\n

Ex ic = 2\u533a<\/p>\n<\/td>\n<\/tr>\n

\n

\n\u00a0\u65e0\u706b\u82b1 \u201cnA\u201d<\/p>\n

\u00a0IEC 60079-15
\n\u00a0EN 60079-15
\n\u00a0UL 60079-15<\/p>\n<\/td>\n

\n

\u5728\u6b63\u5e38\u64cd\u4f5c\u4e2d\uff0c\u5728\u7ecf\u5b9a\u4e49\u548c\u6240\u63cf\u8ff0\u7684\u73af\u5883\u4e2d\uff0c\u7535\u6c14\u4eea\u8868\u4e0d\u5b58\u5728\u4efb\u4f55\u5f15\u71c3\u6e90\u3002<\/p>\n

 <\/p>\n<\/td>\n

\n

Ex nA = 2\u533a<\/p>\n

<\/figure>\n

 <\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

0, 1, 2\u533a\u5185\u4f7f\u7528\u7684\u9632\u7206\u7c7b\u578b<\/h2>\n

\u5bf9\u4e8eEx i \u201c\u672c\u8d28\u5b89\u5168\u201d\u578b\u9632\u7206\uff0c\u6211\u4eec\u6700\u5e38\u7528\u7684\u662f\u4f20\u611f\u5668\u9632\u7206\u7c7b\u578b\u3002\u5728\u80fd\u91cf\uff08\u529f\u7387\u3001\u7535\u6d41\u548c\u7535\u538b\uff09\u65b9\u9762\uff0c\u6b64\u7c7b\u7535\u6c14\u4eea\u8868\u7684\u7535\u8def\u7ecf\u7279\u522b\u8bbe\u8ba1\uff0c\u786e\u4fdd\u6240\u4f7f\u7528\u5143\u5668\u4ef6\u5185\u4e0d\u4f1a\u51fa\u73b0\u706b\u82b1\u6216\u70ed\u6548\u5e94\uff0c\u4ece\u800c\u907f\u514d\u5371\u9669\u73af\u5883\u88ab\u70b9\u71c3\u3002<\/p>\n

\u4f7f\u7528Ex d\u578b\u201c\u9694\u7206\u5916\u58f3\u201d\u9632\u7206\uff0c\u5141\u8bb8\u5728\u7535\u6c14\u4eea\u8868\u5185\u53d1\u751f\u7206\u70b8\u3002\u4f46\u662f\uff0c\u4eea\u8868\u7684\u7ed3\u6784\u8bbe\u8ba1\u80fd\u591f\u9632\u6b62\u7206\u70b8\u706b\u7130\u4ece\u4eea\u8868\u4e2d\u6ea2\u51fa\uff0c\u4ece\u800c\u907f\u514d\u5371\u9669\u73af\u5883\u88ab\u70b9\u71c3\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u901a\u8fc7\u9002\u5f53\u539a\u5ea6\u3001\u5408\u9002\u7684\u95f4\u9699\u5c3a\u5bf8\u548c\u9644\u52a0\u5b89\u88c5\u6307\u5b9a\u89c4\u683c\u7684\u5916\u58f3\u58c1\u9762\u6765\u5b9e\u73b0\u8be5\u529f\u80fd\u3002<\/p>\n

2\u533a\u5185\u4f7f\u7528\u7684\u9632\u7206\u7c7b\u578b<\/h2>\n

\u4e0a\u8ff0\u9632\u7206\u7c7b\u578b\u9002\u7528\u4e8e\u57280\u30011\u548c2\u533a\u5185\u4f7f\u7528\u7684\u7535\u6c14\u4eea\u8868\uff08\u4f20\u611f\u5668\uff09\uff0c\u4f46Ex nA \u201c\u65e0\u706b\u82b1\u201d\u578b\u9632\u7206\u7535\u6c14\u4eea\u8868\u4ec5\u9002\u7528\u4e8e2\u533a\u3002\u5982\u5176\u540d\u79f0\u4e00\u6837\uff0c\u6b64\u7c7b\u4eea\u8868\u65e0\u6cd5\u4ea7\u751f\u706b\u82b1\uff0c\u4e5f\u4e0d\u5305\u542b\u4efb\u4f55\u70ed\u8868\u9762\u70b9\u706b\u6e90\u3002\u4f46\u662f\uff0c\u8fd9\u53ea\u662f\u6b63\u5e38\u64cd\u4f5c\u7684\u60c5\u51b5\u3002\u7531\u4e8e\u57282\u533a\u5f88\u5c11\u4f1a\u51fa\u73b0\u7206\u70b8\u6027\u73af\u5883\uff0c\u4e14\u6b64\u7c7b\u73af\u5883\u6301\u7eed\u65f6\u95f4\u5f88\u77ed\uff0c\u6240\u4ee5\u4eea\u8868\u53d1\u751f\u6545\u969c\u65f6\u51fa\u73b0\u7206\u70b8\u6027\u73af\u5883\u7684\u51e0\u7387\u5f88\u4f4e\u3002<\/p>\n

\u9632\u7206\u7c7b\u578b\u7684\u9009\u62e9<\/h2>\n

\u4e0a\u6587\u6240\u8ff0\u4e3a\u6700\u5e38\u89c1\u7684\u4f20\u611f\u5668\u9632\u7206\u7c7b\u578b\uff0c\u5e76\u672a\u6db5\u76d6\u5168\u90e8\u5185\u5bb9\u3002\u7535\u6c14\u4eea\u8868\u9632\u7206\u7c7b\u578b\u7684\u9009\u62e9\u8fd8\u53d6\u51b3\u4e8e\u64cd\u4f5c\u4eba\u5458\u7684\u64cd\u4f5c\u89c4\u8303\u4ee5\u53ca\u5bf9\u76f8\u5173\u673a\u5668\u6216\u8bbe\u5907\u7684\u9632\u7206\u7406\u5ff5\u4e86\u89e3\u3002\u8fd9\u4e9b\u56e0\u7d20\u5728\u4e0d\u540c\u533a\u57df\u6709\u5f88\u5927\u7684\u4e0d\u540c\u3002\u4f8b\u5982\uff0c\u5728\u6b27\u6d32\uff0c\u6700\u5e38\u89c1\u7684\u662fEx i\u578b\u9632\u7206\uff0c\u4f46\u662f\u7f8e\u56fd\u6700\u5e38\u7528\u7684\u5219\u662fEx d\u578b\u9632\u7206\uff08\u5373\u201c\u9694\u7206\u5916\u58f3\u201d\uff09\u3002<\/p>\n

\u6ce8
\n<\/strong>\u5173\u4e8eEx d\u7684\u66f4\u591a\u4fe1\u606f\uff0c\u8bf7\u53c2\u9605\u535a\u6587\u201c\u4e3a\u4f55\u8c28\u614e\u9009\u62e9\u9632\u7206\u538b\u529b\u53d8\u9001\u5668\u5982\u6b64\u91cd\u8981\u2026<\/a>\u201d\u3002\u5173\u4e8eEx ia \u53ca Ex nA\u7684IS-3 ex\u9632\u7206\u578b\u538b\u529b\u4f20\u611f\u5668\u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u8bf7\u8bbf\u95ee\u5a01\u5361\uff08WIKA\uff09\u7f51\u7ad9<\/a>\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

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