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EVS-EN IEC 62271-108:2021

High-voltage switchgear and controlgear - Part 108: High-voltage alternating current disconnecting circuit-breakers for rated voltages above 52 kV (IEC 62271-108:2020)

General information
Valid from 15.01.2021
Base Documents
EN IEC 62271-108:2020; IEC 62271-108:2020
Directives or regulations
None
Standard history
Status
Date
Type
Name
15.01.2021
Main
05.07.2006
Main
This part of IEC 62271 applies to high-voltage alternating current disconnecting circuitbreakers for operation at frequencies of 50 Hz and 60 Hz on systems having voltages above 52 kV. This document identifies which requirements of IEC 62271-1, IEC 62271-100:– and IEC 62271-102 are applicable. It also gives the additional requirements specific to these devices. This document covers single switching devices which perform the functions of both a circuitbreaker and a disconnector by means of contacts housed in a single enclosure, and in which the circuit-breaker contacts in the open position satisfy, or contribute to, the isolating requirements of the disconnector function. As there is interaction between the requirements of the separate functions, it is important to consider the standardization of requirements. This document details the requirements for a disconnecting circuit-breaker, identifying where these differ from the separate requirements of a discrete circuit-breaker and a disconnector.
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