T/CEEIA 548-2021 Active Group standards

T/CEEIA 548-2021 Low-voltage Circuit Breakers Application Guide Part 1: Temperature Reduction Factor Capacity

Publish Date: 2021-12-20 Implement Date: 2021-12-20 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/CEEIA 548-2021

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Switch

Publish Date: 2021-12-20

Implement Date: 2021-12-20

Scope

Scope: This document specifies the test conditions, equipment requirements, and specific test methods for the temperature derating coefficient of circuit breakers, and establishes the relationship between the temperature rise of the circuit breaker's terminal and the operating current, as well as the relationship between the ambient temperature and the operating current. This document is applicable to circuit breakers with rated voltages not exceeding 1,000 V AC (for circuit breakers with rated voltages higher than 1,000 V AC but not exceeding 1,500 V AC, refer to the implementation), or circuit breakers with electronic trip devices in 1,500 V DC circuits. Other circuit breakers may also refer to this document for guidance. Main technical content: This document specifies the test conditions, equipment requirements, and specific test methods for the temperature derating coefficient of circuit breakers, and establishes the relationship between the temperature rise of the circuit breaker's terminal and the operating current, as well as the relationship between the ambient temperature and the operating current. This document is applicable to circuit breakers with rated voltages not exceeding 1,000 V AC (for circuit breakers with rated voltages higher than 1,000 V AC but not exceeding 1,500 V AC, refer to the implementation), or circuit breakers with electronic trip devices in 1,500 V DC circuits. Other circuit breakers may also refer to this document for guidance.