美洲特定NEC和CEC

北美电气装置的标准参考文件是美国国家电气规程（NEC）和加拿大电气规程（CEC）。

重要的是要了解，在普通、潮湿和危险（或分类）场所使用的电气设备必须由认可的认证机构“列出”，以便在预期场所使用。危险场所包括易燃、可燃或可燃物质可能以危险量出现的区域。

The technical specifications of both CEC and NEC are very similar, however there are slight differences and it is important to have an understanding of the differences and this is why CMP has technical experts in both codes that are able to assist engineers with selecting the right product for the right environment.

Both the NEC and CEC codes allow two methods of categorising Hazardous Locations, which are Class and Division, and Class and Zone. A key difference between NEC & CEC is since 1998 the CEC requires that any new installations shall have area classification applied under the Class and Zone concept.

可通过下面的链接查看各个类别、分区和分区的典型密封方法，有关更多信息，请联系您的CMP地区办事处。

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