NB/T 20225-2013Qualification of safety class electric connectors of nuclear power plants (English PDF)

NB/T 20225-2013 is the English-translated version of 核电厂安全级电气连接件鉴定.

NB/T 20225-2013 is the Chinese energy industry standard on the qualification of class 1E connection assemblies, that is, the safety class electric connectors used in nuclear power plants.

Qualification is the demonstration that such components will perform their safety function under the conditions they are expected to meet in service, and this standard is the reference for that demonstration.

It is placed under Chinese classification F60 and the international class 27.120.10, within the electrical group of the nuclear series. The documents it draws on are GB/T 12727-2002, GB/T 13625-1992 and EJ/T 705-2006. Issued on 8 June 2013, it has applied since 1 October 2013.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

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