\u8f9b\u666e\u68ee 884-2 \u58f0\u7ea7\u8ba1\uff08\u4ee5\u4e0b\u7b80\u79f0 884-2 \u6216\u4eea\u5668\uff09\u662f\u4e00\u79cd\u4fbf\u643a\u5f0f\u901a\u7528\u58f0\u7ea7\u8ba1\uff0c\u80fd\u591f\u5728 40 \u5230 140 \u5206\u8d1d\u7684\u8303\u56f4\u5185\u8fdb\u884c\u7cbe\u786e\u7684\u58f0\u7ea7\u6d4b\u91cf\u3002\u8fd9\u5305\u62ec\u4ece\u5b89\u9759\u4f4f\u5b85\u5230\u75bc\u75db\u9608\u503c\u4ee5\u5916\u7684\u566a\u58f0\u7ea7\u3002\u8be5\u5206\u8d1d\u8303\u56f4\u7b26\u5408\u73b0\u884c\u7684\u8054\u90a6\u3001\u5dde\u548c\u5730\u65b9\u566a\u58f0\u6cd5\u89c4\u8981\u6c42\uff0c\u5305\u62ec\u5b89\u5168\u548c\u73af\u5883\u566a\u58f0\u68c0\u67e5\u3002<\/p>\n
884-2 \u7b26\u5408\u7f8e\u56fd\u56fd\u5bb6\u6807\u51c6\u5b66\u4f1a (ANSI) S1.4 - 1983 \u6807\u51c6\u89c4\u8303 \"S2A \u578b\u901a\u7528\u58f0\u7ea7\u8ba1\u548c\u56fd\u9645\u7535\u5de5\u59d4\u5458\u4f1a (IEC) 651 \"\u7684\u8981\u6c42\u3002\u9664\u4e86\u76f4\u63a5\u6d4b\u91cf\u51b2\u51fb\uff08\u8109\u51b2\uff09\u566a\u58f0\u5916\uff0c\u8be5\u4eea\u5668\u8fd8\u53ef\u7528\u4e8e\u6d4b\u91cf\u5de5\u4e1a\u566a\u58f0\u7ea7\uff0c\u4ee5\u7b26\u5408 1970 \u5e74\u300a\u804c\u4e1a\u5b89\u5168\u4e0e\u5065\u5eb7\u6cd5\u6848\u300b\uff08OSHA\uff09\u548c\u300a\u6c83\u5c14\u4ec0-\u5e0c\u5229\u6cd5\u6848\u300b\u7684\u89c4\u5b9a\u3002<\/p>\n
884-2 \u53ef\u4ee5\u624b\u6301\u8fdb\u884c\u5feb\u901f\u6d4b\u8bd5\uff0c\u4e5f\u53ef\u4ee5\u5b89\u88c5\u5728\u4e09\u811a\u67b6\u4e0a\u8fdb\u884c\u957f\u65f6\u95f4\u6d4b\u91cf\u3002\u4eea\u5668\u5916\u58f3\u7531\u9ad8\u6297\u51b2\u51fb\u6a21\u5851\u5851\u6599\u5236\u6210\uff0c\u4f20\u58f0\u5668\u4e00\u7aef\u7684\u8f6e\u5ed3\u7279\u522b\u6e05\u6670\uff0c\u53ef\u6700\u5927\u9650\u5ea6\u5730\u51cf\u5c11\u88ab\u6d4b\u58f0\u80fd\u573a\u7684\u53cd\u5c04\u3002<\/p>\n
884-2 \u914d\u5907\u6709\u91cf\u7a0b\u9009\u62e9\u5f00\u5173\uff0c\u53ef\u5c06\u6307\u793a\u4eea\u5668\u7684 0 dB \u70b9\u4e0e\u6240\u9009\u91cf\u7a0b\u76f8\u5bf9\u5e94\u3002\u4f8b\u5982\uff0c\u5f53\u91cf\u7a0b\u5f00\u5173\u8bbe\u7f6e\u4e3a 70 \u65f6\uff0c\u9ed1\u8272\u5f27\u7ebf\u4e0a\u7684\u96f6 (0) \u70b9\u7b49\u4e8e 70 dB\u3002\u53ef\u901a\u8fc7\u5f00\u5173\u9009\u62e9\u4eea\u8868\u7684\u5feb\u901f\u6216\u6162\u901f\u54cd\u5e94\u3002<\/p>\n
884-2 \u63d0\u4f9b\u4e09\u79cd\u4e0e\u8f93\u5165\u58f0\u7ea7\u6210\u6bd4\u4f8b\u7684\u8f93\u51fa\uff1a\u6709\u6548\u503c\u8f93\u51fa\u3001\u5206\u8d1d\u8f93\u51fa\u4ee5\u53ca\u4e0e\u8f9b\u666e\u68ee 898 \u500d\u9891\u7a0b\u5e26\u6ee4\u6ce2\u5668\u517c\u5bb9\u7684\u5916\u90e8\u6ee4\u6ce2\u5668\u8f93\u51fa\u3002<\/p>\n
\u4e70\u5bb6\u987b\u77e5<\/p>\n
1.\u5173\u4e8e\u4ea7\u54c1<\/p>\n
\u7531\u4e8e\u5e02\u573a\u6ce2\u52a8\u3001\u6c47\u7387\u53d8\u52a8\u7b49\u56e0\u7d20\uff0c\u4ea7\u54c1\u4ef7\u683c\u53ca\u4ea7\u54c1\u5c5e\u6027\u4ec5\u4f9b\u53c2\u8003\uff1b\u5177\u4f53\u4ea7\u54c1\u8981\u6c42\u4ee5\u5ba2\u6237\u8981\u6c42\u4e3a\u51c6\uff0c\u4ef7\u683c\u4ee5\u6c9f\u901a\u62a5\u4ef7\u4e3a\u51c6\u3002\u672c\u7f51\u7ad9\u6240\u6709\u4ea7\u54c1\u4ef7\u683c\u4e0d\u4f5c\u4e3a\u4ea4\u6613\u4ef7\u683c\uff0c\u4ec5\u4f9b\u53c2\u8003\uff01<\/p>\n
2.\u5173\u4e8e\u5546\u6807\u7248\u6743<\/p>\n
\u4e0e\u672c\u7f51\u7ad9\u76f8\u5173\u7684\u6240\u6709\u516c\u53f8\u540d\u79f0\u3001\u5546\u6807\u3001\u6807\u8bc6\u3001\u4ea7\u54c1\u56fe\u7247\u3001\u4ea7\u54c1\u8bf4\u660e\u3001\u4ea7\u54c1\u54c1\u724c\u540d\u79f0\u7b49\uff0c\u4ee5\u53ca\u5546\u6807\u7248\u6743\u7b49\u6240\u6709\u77e5\u8bc6\u4ea7\u6743\u5747\u5f52\u76f8\u5e94\u54c1\u724c\u6240\u6709\uff1b\u672c\u7f51\u7ad9\u4ec5\u4e3a\u65b9\u4fbf\u7528\u6237\u8bc6\u522b\u4ea7\u54c1\u800c\u8bbe\u3002
\n\u8bf7\u4ed4\u7ec6\u9605\u8bfb\u4e70\u65b9\u8bf4\u660e\uff0c\u4ee5\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u7ea0\u7eb7\u3002<\/p>\n
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