GB/Z 25842.2-2012 Active National standards

GB/Z 25842.2-2012 Low-voltage switchgear and controlgear—Over-current protective devices—Part 2:Selectivity under over-current conditions

GB/Z 25842.2-2012 Low-voltage switchgear and controlgear—Over-current protective devices—Part 2:Selectivity under over-current conditions

Publish Date: 2012-11-05 Implement Date: 2013-02-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/Z 25842.2-2012
Standard Type: National standards
Standard Status: Active
is_force_gb: no
CCS Name: Low-voltage electrical equipment
ICS Name: Integrated switch devices and controllers
Publish Date: 2012-11-05
Implement Date: 2013-02-01
Pages: 26 pages

Scope

This guidance technical document specifies the definitions of relevant terms.
This guidance technical document is applicable to the selection guidelines for overcurrent protection devices between low-voltage switchgear and control equipment, and provides some application examples.

Development Information

Word Count: 48 Thousand words Pages: 26 pages

Referenced Standards

GB/T 10963.1-2005 Electrical accessories—Circuit-breakers for overcurrent protection for household and similar installation—Part 1:Circuit-breakers for a.c. operation GB 13539.1-2008 Low-voltage fuses—Part 1:General requirements 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 13539.3-2008 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 14048.2-2008 Low-voltage switchgear and controlgear—Part 2:Circuit-breakers GB 14048.6-2008 Low-voltage switchgear and controlgear—Part 4-2:Contactors and motor-starters—AC semiconductor motor controllers and starters(including soft-starter) GB/Z 25842.1-2010 Low-voltage switchgear and controlgear—Overcurrent protective devices—Part 1:Application of short-circuit ratings IEC 60947-1:2007 IEC 60255(所有部分) IEC 60269-4 IEC 60269-5:2010 IEC 60947-4-1 IEC 61008-1 IEC 61009-1 GB 14048.9-1998 Low-voltage switchgear and controlgear Multiple function equipment Section 2:Control and protective switching devices(or equipment)(CPS) GB/T 14048.9-2008 Low-voltage switchgear and controlgear—Part 6-2:Multiple function equipment—Control and protective switching devices(or equipment)(CPS) GB/T 14048.9-2024 Low-voltage switchgear and controlgear—Part 6-2:Multiple function equipment—Control and protective switching devices(or equipment)(CPS)

Adopt standards

IEC/TR 61912-2:2009

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