GB 7251.2-1997
Replaced
GB/T 7251.2-2023
Active
National standards
GB/T 7251.2-2023 Low-voltage switchgear and controlgear assemblies—Part 2:Power switchgear and controlgear assemblies
GB/T 7251.2-2023 Low-voltage switchgear and controlgear assemblies—Part 2:Power switchgear and controlgear assemblies
Price:
$ 131
Basic Information
Standard Code:
GB/T 7251.2-2023
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Low-voltage distribution electrical equipment
ICS Name:
Low-voltage switchgear and controllers
Publish Date:
2023-08-06
Implement Date:
2024-03-01
Pages:
45 pages
Scope
This document specifies the specific requirements for complete power switchgear and control equipment (referred to as "PSC-complete equipment" in this document, see 3.1.101), as follows:
——Complete equipment with a rated voltage of no more than 1,000 V AC or 1,500 V DC;
——Complete equipment with a rated frequency of no more than 1,000 Hz at the input terminal;
Note 1: Frequencies exceeding 1 kHz are considered high-frequency and require additional requirements for insulation coordination, see GB/T 16935.1—2008, section 5.3.3.2.5.
——Complete equipment for indoor and outdoor use;
——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 and data processing;
——Complete equipment designed for special use conditions, such as those used on ships and locomotives, provided they meet the relevant specific requirements.
Note 2: IEC 60092-302-2 includes supplementary requirements for marine complete equipment.
This document applies to complete equipment used in photovoltaic design (PVA). The characteristics, specific use conditions, and requirements of PVA are described in Appendices DD, EE, and FF.
This document provides supplementary requirements for PSC-complete equipment used as part of machine electrical equipment and possibly applicable in addition to the requirements given in IEC 60204-1.
This document applies to complete equipment designed, manufactured, and verified once or completely standardized for mass production.
The production and/or assembly may not be carried out by the original manufacturer (see GB/T 7251.1—2023, section 3.10.1).
This document does not apply to individual devices, such as circuit breakers and fuse switches; nor does it apply to fully assembled components, such as motor starters, pow
Development Information
Same series standard
Replace the following standards
Referenced Standards
CISPR 32:2015
CISPR 32:2015/AMD1:2019
GB/T 5226.1-2019 Electrical safety of machinery—Electrical equipment of machines—Part 1:General requirements
GB/T 7251.1-2023 Low-voltage switchgear and controlgear assemblies—Part 1:General rules
GB/T 14048.3-2017 Low-voltage switchgear and controlgear—Part 3:Switches,disconnectors，switch-disconnectors and fuse-combination units
IEC 61140
IEC 62262
IEC TR 60890
Adopt standards
IEC 61439-2:2020
Related Standards
GB/T 11022-1999
Replaced
GB/T 11022-1999 Common specifications for high-voltage switchgear and control gear standards
GB/T 18858.1-2002
Replaced
GB/T 18858.1-2002 Low-voltage switchgear and control gear Controller-device interface(CDIs)—Part 1:General rules
GB/T 18858.3-2002
Replaced
GB/T 18858.3-2002 Low-voltage switchgear and control gear—Controller-Device interface(CDI)—Part 3:Device Net
GB/Z 18859-2002
Replaced
GB/Z 18859-2002 Enclosed low-voltage switchgear and controlgear Assemblies—Guide for testing under conditions of arcing due to internal fault
GB 14048.4-2003
Replaced