Test items
Rated voltage、 maximum working voltage、 rated limit breaking capacity、 inherent working time、 electrical life、 number of auxiliary contacts、 external dimensions、 operating voltage、 rated current、 rated insulation voltage、 breaking overvoltage、 current setting range、 mechanical life、 auxiliary contact capacity、 installation size、 etc p> Applicable scope: Neutral busbar circuit breaker、 neutral busbar grounding circuit breaker、 metal circuit conversion circuit breaker、 earth circuit conversion circuit breaker、 etc p> Relevant Testing Standards
GB/T 14824-2021 High Voltage AC Generator Circuit Breakers
GB/T 40777-2021 Household and Similar Purpose Circuit Breakers、 RCCBs RCBO automatic reclosing device (ARD) General Requirements
GB/T 39891-2021 Electrical Durability Test Methods for Circuit Breakers of 52kV and Above
GB/T 10963.2-2020 Electrical Accessories - Circuit Breakers for Overcurrent Protection in Household and Similar Places - Part 2: Circuit Breakers for AC and DC Applications
GB/T 10963.1-2020 Electrical Accessories - Circuit Breakers for Overcurrent Protection in Household and Similar Places - Part 1: Circuit Breakers for AC Applications
GB/T 14048.2-2020 Low Voltage Switchgear and Control Equipment Part 2: Circuit Breakers
GB/T 38328-2019 Common Technical Requirements for High Voltage DC Circuit Breakers for Flexible DC Systems
GB/T 37751.1-2019 Residual Current Operated Circuit Breakers for Household and Similar Purposes Part 1: Overview of Independent and Unit Modules for Residual Current Electrical Appliances Standards
GB/T 37751.31-2019 Residual Current Operated Circuit Breakers for Household and Similar Purposes Part 3-1: Unthreaded Type with Connection to External Copper Conductors Special Requirements for RCD of Wiring Terminals
GB/T 4473-2018 Synthetic Testing of High Voltage AC Circuit Breakers
GB/T 24838-2018 1100kV High Voltage AC Circuit Breakers
Precautions for Inspection Reports1. Report No& Ldquo; Special seal for research and testing; Rdquo; Invalid official seal、 invalid report without anti-counterfeiting QR code p> 2. The copied report was not re stamped; Ldquo; Special seal for research and testing; Rdquo; Or the official seal is invalid p> 3. The report is invalid without the signature of the main inspector、 reviewer、 or approver p> 4. The report is invalid if altered p> 5. If there are any objections to the testing report、 they should be raised within 15 days from the date of receiving the report. If the report is overdue、 it will not be accepted p>
The above article is a partial list. For more testing needs and details、 please consult the online consultant of the free consulting agency: 18501763637
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