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首页> 外文会议>2015 IEEE Petroleum and Chemical Industry Committee Conference >Product standards requirements for explosionproof and flameproof tapered threaded connections
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Product standards requirements for explosionproof and flameproof tapered threaded connections

机译：防爆和防火锥形螺纹连接的产品标准要求

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Recent hazardous locations electrical product standards revisions have impacted the thread designs used for the explosion flame path in explosionproof equipment. These revisions are a result of the International Electrotechnical Commission (IEC) standards requirements impacting the product standards used in North America. The mating of threads in a hazardous location is a critical component to ensure both the integrity of the mechanical strength and ingress protection of the enclosure as well as the flame extinguishing performance of the male and female thread mating area. Newer hazardous locations product thread designs can appear to be much longer in thread availability. Inter-changeability of new design threads with older design threads can have a visual appearance of fewer threads of engagement as the longer thread length can result in the same amount of threads engaged as the older design with fewer available threads. However, not all threads are engaged into the female entry. This paper provides an overview of the industry standards revisions, the product design impacts, and the inter-mating of new thread designs compared with old thread designs. Graphic illustrations and photographs of these designs provide readers the guidance for applying hazardous locations electrical products into Class I environments. An overview of the design implications while maintaining National Electrical Code minimum thread engagement criteria is provided.
机译：最近的危险场所电气产品标准修订版影响了防爆设备中用于爆炸火焰通道的螺纹设计。这些修订是国际电工委员会（IEC）标准要求影响北美使用的产品标准的结果。危险位置的螺纹配合是确保机械强度和外壳进入保护的完整性以及外螺纹和内螺纹配合区域的灭火性能的关键组成部分。较新的危险场所产品螺纹设计在螺纹可用性方面似乎更长。新设计螺纹与旧设计螺纹的互换性可以使接合螺纹的外观看起来更清晰，因为较长的螺纹长度可以使接合的螺纹数量与较旧的设计相同，可用螺纹较少。但是，并非所有线程都已插入母头。本文概述了行业标准修订版，产品设计的影响以及新线程设计与旧线程设计之间的相互影响。这些设计的图形插图和照片为读者提供了将危险场所的电气产品应用于I类环境的指导。提供了对设计影响的概述，同时保持了国家电气法规的最小螺纹啮合标准。

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