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GB 7251.2-2006 Replaced National standards force_standard

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

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

Publish Date: 2006-08-25 Implement Date: 2007-03-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB 7251.2-2006
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: 2006-08-25
Implement Date: 2007-03-01
Pages: 25 pages

Scope

Add the following paragraph: This part applies to the busbar trunking system (BTS) and auxiliary facilities for power supply and distribution in residential areas, commercial areas, public places, agricultural and industrial buildings. This part also applies to busbar trunking systems equipped with communication and/or control systems, or busbar systems that provide lighting through tap-changers, but does not apply to power supply line systems that comply with GB/T 13961—2003. The busbar trunking systems described in this part (including various length units and bending units) are considered type-tested complete equipment (TTA) if they have been tested in accordance with Chapter 8 of this part. Tap-changers can be considered partial type-tested complete equipment (PTTA).

Development Information

Word Count: 44 Thousand words Pages: 25 pages

Same series standard

GB/T 7251.3-2006 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 GB/T 7251.4-2006 Low-voltage switchgear and control gear assemblies—Part 4:Particular requirements for assemblies for construction sites(ACS)

Replace the following standards

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

Superseded by the following standards

GB/T 7251.6-2015 Low-voltage switchgear and controlgear assemblies—Part 6:Busbar trunking systems(busways)

Referenced Standards

GB/T 5169.10-1997 Fire hazard testing for electric and electronic products—Test methods—Glow-wire test methods—General GB/T 5169.11-1997 Fire hazard testing for electric and electronic products—Test methods—Glow-wire end-product test and guidance GB/T 5169.12-1999 Fire hazard testing for electric and electronic products—Test methods-Glow-wire flammability test on materials GB/T 5169.13-1999 Fire hazard testing for electric and electronic products—Test methods-Glow-wire ignitability test on materials GB 7251.1-2005 Low-voltage switchgear and control gear assemblies—Part 1:Type-tested and partially type-tested assemblies GB 13961-2003 Safety requirements for electrical supply track systems for luminaires GB 14048.2-2001 Low-voltage switchgear and controlgear—Low-voltage circuit breakers GB/T 18380.3-2001 Tests on electric cables under fire conditions—Part 3:Tests on bunched wires or cables IEC 60269-4 IEC 60269-5 IEC 60909:1988 ISO 834-1:1999 GB 13539.1-2002 Low-voltage fuses—Part 1:General requirements GB 13539.1-2008 Low-voltage fuses—Part 1:General requirements GB/T 13539.1-2015 Low-voltage fuses—Part 1:General requirements GB/T 13539.2-2002 Low-voltage fuses—Part 2:Supplementary requirements for fuses for use by authorized persons(fuses mainly for industrial application) GB/T 13539.2-2008 Low-voltage fuses—Part 2:Supplementary requirements for fuses for use by authorized persons(fuses mainly for industrial application)—Examples of standardized systems of fuses A to I GB/T 13539.2-2015 Low-voltage fuses—Part 2:Supplementary requirements for fuses for use by authorized persons(fuses mainly for industrial application)—Examples of standardized systems of fuses A to K GB 13539.3-1999 Low-voltage fuses—Part 3:Supplementary requirements for fuses for use by unskilled person (fuses for mainly for household and similar apllication) GB/T 13539.3-2008 Low-voltage fuses—Part 3:Supplementary requirements for fuses for use by unskilled persons(fuses mainly for household and similar applications)—Examples of standardized systems of fuses A to F GB/T 13539.3-2017 Low-voltage fuses—Part 3:Supplementary requirements for fuses for use by unskilled persons (fuses mainly for household and similar applications)— Examples of standardized systems of fuses A to F

Adopt standards

IEC 60439-2:2000

Related Standards

GB 7251.2-1997 Replaced

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
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
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