High-voltage switchgear and controlgear - Part 304: Design classes for indoor enclosed switchgear and controlgear for rated voltages above 1 kV up to and including 52 kV to be used in severe climatic conditions
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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.
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EN 60068-1:1994 Environmental testing - Part 1: General and guidance
EN 62271-1:2008 High-voltage switchgear and controlgear - Part 1: Common specifications
EN 62271-200:2004 High-voltage switchgear and controlgear - Part 200: AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV
EN 60068-1:1994 Environmental testing - Part 1: General and guidance
EN 62271-1:2008 High-voltage switchgear and controlgear - Part 1: Common specifications
EN 62271-200:2004 High-voltage switchgear and controlgear - Part 200: AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV
EN 62271-201:2006 High-voltage switchgear and controlgear - Part 201: AC insulation-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV
HD 588.1 S1:1991 High-voltage test techniques - Part 1: General definitions and test requirements