GB/T 7251.12-2013 Low-voltage switchgear and controlgear assemblies—Part 2:Power switchgear and controlgear assemblies
GB/T 7251.12-2013 Low-voltage switchgear and controlgear assemblies—Part 2:Power switchgear and controlgear assemblies
Basic Information
Scope
This part of GB 7251 specifies the specific requirements for complete power switching and control equipment (PSC complete equipment) as follows:
—— Complete equipment with a rated voltage of not more than 1,000 V AC or 1,500 V DC;
—— Fixed or mobile complete equipment with or without a casing;
—— Complete equipment intended for use with equipment for power generation, transmission, distribution, and energy conversion, as well as equipment for controlling energy consumption;
—— [ZK(#] Complete equipment designed for special use conditions, such as that used on ships and locomotives, as long as they meet the relevant specific requirements;
—— Complete equipment designed for the electrical equipment of machines. The IEC 60204 series of standards includes supplementary requirements for complete equipment that constitutes a component of a machine. [ZK)]
This part applies to complete equipment that is designed, manufactured, and verified on a one-time basis, or to completely standardized mass-produced complete equipment.
The manufacturer of the equipment may not be the original manufacturer (see 3.10.1).
This part does not apply to individual devices and fully assembled components that comply with their respective product standards, such as motor starters, knife fuse switches, electronic equipment, etc. This part does not apply to specific types of complete equipment in other parts of GB 7251. The complete equipment covered by this part will not be covered by standards in other parts.