GB/T 14048.2-2020 Active National standards

GB/T 14048.2-2020 Low-voltage switchgear and controlgear—Part 2:Circuit-breakers

GB/T 14048.2-2020 Low-voltage switchgear and controlgear—Part 2:Circuit-breakers

Publish Date: 2020-09-29 Implement Date: 2021-04-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Price: $ 270

Basic Information

Standard Code: GB/T 14048.2-2020

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Low-voltage distribution electrical equipment

ICS Name: Switch

Publish Date: 2020-09-29

Implement Date: 2021-04-01

Pages: 224 pages

Scope

This part of GB/T 14048 specifies the terms and definitions, classification, characteristics, product data and information, normal operation, installation and transportation conditions, structural and performance requirements, and tests for circuit breakers.
This part applies to circuit breakers used to connect to circuits with a rated voltage not exceeding 1,000 V AC or 1,500 V DC, and installed and operated by professionally trained and skilled personnel. This part also specifies additional requirements for circuit breakers with fuses.
Circuit breakers with a rated voltage higher than 1,000 V AC but not exceeding 1,500 V AC can be tested according to this part.
This part applies to any circuit breakers with any rated current, any structural type, or any intended use.
The requirements for circuit breakers used for grounding protection are included in Appendix B.
The additional requirements for electronic overcurrent protection circuit breakers are included in Appendix F.
The additional requirements for circuit breakers used in IT systems are included in Appendix H.
The requirements and test methods for electromagnetic compatibility of circuit breakers are included in Appendix J.
The requirements for circuit breakers without overcurrent protection are included in Appendix L.
The requirements for residual current device modules (without internal current breaking devices) are included in Appendix M.
The requirements and test methods for electromagnetic compatibility of circuit breaker accessories are included in Appendix N.
The requirements for instantaneous trip circuit breakers (ICBs) are included in Appendix O.
The requirements and test methods for DC circuit breakers used in photovoltaic (PV) systems are included in Appendix P.
The requirements and test methods for residual current protection circuit breakers with automatic reclosing function are included in Appendix R.
The supplem

Development Information

Word Count: 430 Thousand words Pages: 224 pages

Same series standard

GB/T 14048.4-2020 Low-voltage switchgear and controlgear—Part 4-1:Contactors and motor-starters—Electromechanical contactors and motor-starters(Including motor protector)

Replace the following standards

GB/T 14048.2-2008 Low-voltage switchgear and controlgear—Part 2:Circuit-breakers

Referenced Standards

GB/T 13539.1-2015 Low-voltage fuses—Part 1:General requirements GB/T 14048.1-2012 Low-voltage switchgear and controlgear—Part 1:General rules GB/T 16927.4-2014 High voltage and high current test techniques—Part 4: Definitions and requirements for test currents and measuring systems GB/T 16935.1-2008 Insulation coordination for equipment within low-voltage systems—Part 1:Principles,requirements and tests GB/T 17045-2008 Protection against electric shock—Common aspects for installation and equipment GB/T 17626.2-2018 Electromagnetic compatibility—Testing and measurement techniques—Electrostatic discharge immunity test GB/T 17626.3-2016 Electromagnetic compatibility—Testing and measurement techniques—Radiated,radio-frequency,electromagnetic field immunity test GB/T 17626.4-2018 Electromagnetic compatibility—Testing and measurement techniques—Electrical fast transient/burstimmunity test GB/T 17626.5-2019 Electromagnetic compatibility—Testing and measurement techniques—Surge immunity test GB/T 17626.6-2017 Electromagnetic compatibility—Testing and measurement techniques—Immunity to conducted disturbances,induced by radio-frequency fields CISPR 32:2015 GB/T 2423.4-1993 Basic environmental testing procedures for electric and electronic products—Test Db:Damp heat, cyclic 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 2423.22-2002 Environmental testing for electric and electronic products—Part 2:Test methods Test N:Change of temperature GB/T 2423.22-2012 Environmental testing—Part 2:Test methods—Test N:Change of temperature GB/T 3956-1997 Conductors of insulated cables GB/T 3956-2008 Conductors of insulated cables GB 4824-2004 Industrial, scientific and medical(ISM) radio-frequency equipment—Electromagnetic disturbance characteristics—Limits and methods of measurement GB 4824-2013 Industrial,scientific and medical(ISM) radio-frequency equipment—Disturbance characteristics—Limits and methods of measurement GB 4824-2019 Industrial,scientific and medical equipment—Radio-frequency disturbance characteristics—Limits and methods of measurement GB 14048.4-2003 Low-voltage switchgear and controlgear—Electromechanical contactors and motor-starters 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 14048.4-2020 Low-voltage switchgear and controlgear—Part 4-1:Contactors and motor-starters—Electromechanical contactors and motor-starters(Including motor protector) GB/T 17626.11-1999 Electromagnetic compatibility—Testing and measurement techniques—Voltage dips, short interruptions and voltage variations immunity tests GB/T 17626.11-2008 Electromagnetic compatibility—Testing and measurement techniques—Voltage dips,short interruptions and voltage variations immunity tests GB/T 17626.11-2023 Electromagnetic compatibility—Testing and measurement techniques—Part 11:Voltage dips, short interruptions and voltage variations immunity tests for equipment with input current up to 16 A per phase GB/T 32499-2016 Connecting devices—Devices for the connection of aluminium conductors in clamping units of any material and copper conductors in aluminium bodied clamping units GB 4824-2025 Industrial, scientific and medical equipment—Radio-frequency disturbance characteristics—Limits and methods of measurement

Adopt standards

IEC 60947-2:2019

Related Standards

GB/T 13862-1992 Abolished

GB/T 13862-1992 Basic testing methods of switches for appliance

Publish Date: 1992-11-12

GB/T 14280-1993 Abolished

GB/T 14280-1993 Thermal time delay switch, Generic specification of

Publish Date: 1993-04-03

GB/T 14281-1993 Abolished

GB/T 14281-1993 Thermostatic switch, Generic specification of

Publish Date: 1993-04-03

GB/T 14810-1993 Replaced

GB/T 14810-1993 AC high voltage switches for rated voltages of 110kV and above

Publish Date: 1993-12-28

GB 15092.2-1994 Replaced

GB 15092.2-1994 Switches for appliances—Part 2:Particular requirements for cord switches

Publish Date: 1994-06-30

GB 15092.3-1998 Replaced

GB 15092.3-1998 Switches for appliances Part 2:Particular requirements for change-over selectors

Publish Date: 1998-08-17