CCC: Update GB-Standard 7251.12 2013 for Low-voltage switchgear and control gear assemblies

16. May 2014

On May 5, 2014 the CNCA (Certification and Accreditation Administration, Chinese: 中国 国家 认证 认可 监督 管理 委员会) issued an official announcement (number 12-2014), stating that a new GB-Standard 7251.12-2013 for Low-voltage switchgear and control gear assemblies was issued December 31, 2013. This new GB standard (GB stands for Guobiao, Chinese for National Standard) will be implemented on 13th January, 2015 and will replace the old GB-Standard 7251.1-2005. This update makes revisions to optimize recognized vulnerabilities of the GB Standard, better assuring public safety.

The revised GB standard defines specific requirements of power switchgear and control gear assemblies. This is relevant for assemblies with rated voltages not to exceed 1000v in case of Alternating Current (AC) or 1500v in case of Direct Current (DC). Also relevant, are the assemblies intended for the use in connection with the generation, transmission, distribution and conversion of electric energy, and for the control of electric energy powered equipment. It is significant for products designed for special uses, such as ships and rail vehicles for example. Since this new GB standard 7251.12 2013 is only available in Chinese, but it directly conforms to IEC 61439-2:2011.

Since the announcement of the new GB standard 7251.12-2013 regarding the mandatory CCC certification for low voltage and switchgear and control gear assemblies, the renewal of existing CCC certificates and new CCC certifications must be in compliance to “CNCA-01C-010: 2013 – Implementation Rules for Compulsory Certification of Electrical and Electronic Products – Low-voltage switchgear assembly”.

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