GB 7251.2-1997 Replaced National standards force_standard

GB 7251.2-1997 Low-voltage switchgear and control gear assemblies—Part 2:Particular requirements for busbar trunking systems(busways)

Publish Date: 1997-12-30 Implement Date: 1998-10-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB 7251.2-1997

Standard Type: National standards

Standard Status: Replaced

is_force_gb: yes

CCS Name: Low-voltage distribution electrical equipment

ICS Name: Low-voltage switchgear and controllers

Publish Date: 1997-12-30

Implement Date: 1998-10-01

Pages: 11 pages

Development Information

Word Count: 19 Thousand words Pages: 11 pages

Same series standard

GB 7251.1-1997 Low-voltage switchgear and control gear assemblies—Part 1:Type-tested and partially type-tested assemblies GB 7251.3-1997 Low-voltage switchgear and control gear assemblies—Part 3:Particular requirements for low-voltage switchgear and control gear assemblies intended to be installed in places where unskilled persons have access for their use—Distribution boards

Superseded by the following standards

GB 7251.2-2006 Low-voltage switchgear and controlgear assemblies—Part 2:Particular requirements for busbar trunking systems (busways)

Adopt standards

IEC 439-2:1987

Related Standards

GB/T 11022-1999 Replaced

GB/T 11022-1999 Common specifications for high-voltage switchgear and control gear standards

Publish Date: 1999-10-10

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

Publish Date: 2002-10-08

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

Publish Date: 2002-10-08

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

Publish Date: 2002-10-08

GB 14048.4-2003 Replaced

GB 14048.4-2003 Low-voltage switchgear and controlgear—Electromechanical contactors and motor-starters

Publish Date: 2003-09-10

GB/T 19334-2003 Replaced

GB/T 19334-2003 Dimension of low-voltage switchgear and control gear—Standardized mounting on rails for mechanical support of electrical devices in switchgear and control gear installations

Publish Date: 2003-10-09