GB 7251.2-1997
Replaced
GB/T 31142-2014
Active
National standards
GB/T 31142-2014 Directives for selection and application of transfer switching equipment
GB/T 31142-2014 Directives for selection and application of transfer switching equipment
Basic Information
Standard Code:
GB/T 31142-2014
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:
2014-09-03
Implement Date:
2015-04-01
Pages:
43 pages
Scope
This standard specifies the product performance, technical parameters, and structural forms that should be paid attention to when selecting and using transfer switch electrical appliances (TSEs), as well as the environmental conditions during use.
This standard applies to the selection and use of TSEs with a rated voltage of no more than 1,000 V AC or 1,500 V DC.
TSEs are used for switching between two power sources to ensure continuous power supply to the load, and allow short-term interruptions in power supply to the load during TSE switching.
TSEs can also be used for switching between loads.
Development Information
Referenced Standards
GB/T 2423.4-2008 Environmental testing for electric and electronic products—Part 2:Test method—Test Db:Damp heat,cyclic(12 h+12 h cycle)
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/T 14048.1-2012 Low-voltage switchgear and controlgear—Part 1:General rules
GB/T 14048.3-2008 Low-voltage switchgear and controlgear—Part 3:Switches,disconnectors,switch-disconnectors and fuse-combination units
GB/T 14048.4-2010 Low-voltage switchgear and controlgear—Part 4-1:Contactors and motor-starters—Electromechanical contactors and motor-starters(Including motor protector)
GB/T 14048.11-2008 Low-voltage switchgear and controlgear—Part 6-1:multiple function equipment—Transfer switching equipment
GB/T 17626.13-2006 Electromagnetic compatibility—Testing and measurement techniques—Harmonics and interharmonics including mains signalling at a.c. power port,low frequency immunity test
GB/T 21208-2007 Low-voltage switchgear and controlgear—Controllers for drivers of stationary fire pumps
GB 50174-2008
GB/T 20645-2006 Specific environmental condition—Technical requirements of low-voltage apparatuses for plateau
GB/T 20645-2021 Specific environmental condition—Technical requirements of low-voltage apparatuses for plateau
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