标准摘要
[中文适用范围]： IEC 62271 的本部分适用于符合 IEC 62271-200 和 IEC 62271-201 的户内封闭开关设备和控制设备，旨在用于比 IEC 62271 规定的正常使用条件更严酷的冷凝和污染使用条件。 1.该技术规范涵盖任何绝缘体暴露于室内气候条件的设备。本技术规范中详述的测试主要旨在研究电气绝缘行为而不是设备腐蚀行为。然而，机械部件的性能，例如机构、联锁装置和外壳，也可以被记录。本技术规范提出了关于冷凝和污染的两级严酷使用条件的定义。它还提出了在特定条件下评估封闭式开关设备和控制设备性能的测试程序，以便得出关于它们在这些恶劣使用条件下的适用性的结论。在本技术规范中，术语“设备”根据“开关设备和控制设备的封闭组件”的范围使用（参见IEC 60050-441，定义441-12-O2）。注：本技术规范中描述的测试程序也可适用于户外设备的内部msulabon。 [外文原描述]： IEC/TS 62271-304:2008 applies to indoor enclosed switchgear and controlgear complying with IEC 62271-200 and IEC 62271-201, intended to be used in service conditions more severe with respect to condensation and pollution than the normal service conditions specified in IEC 62271-1. This technical specification covers equipment where any of the insulation is exposed to indoor climatic conditions. This first edition of IEC/TS 62271-304 cancels and replaces the first edition of IEC/TS 60932, published in 1988, and constitutes a technical revision. This revised document has been basically changed to be updated to today's use of high-voltage switchgear and controlgear up to 52 kV. The contents of the corrigendum of January 2010 have been included in this copy.
英文名称High-voltage switchgear and controlgear - Part 304: Design classes for indoor enclosed switchgear and controlgear for rated voltages above 1 kV up to and includuing 52 kV to be used in severe climatic conditions