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Publication details

Publication CODE Title
NBN EN IEC 62271-103:2023 (2023-11) HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 103: ALTERNATING CURRENT SWITCHES FOR RATED VOLTAGES ABOVE 1 kV UP TO AND INCLUDING 52 kV
 
Price Excl. VAT Total number of pages, tables and drawings
16.00 € 4.
Description
IEC 62271-103:2021 is applicable to three-phase, alternating current switches and switch-disconnectors for their switching function, having making and breaking current ratings, for indoor and outdoor installations, for rated voltages above 1 kV up to and including 52 kV and for rated frequencies from 162/3 Hz up to and including 60 Hz. This document is also applicable to single-pole switches used on three-phase systems. This second edition cancels and replaces the first edition published in 2011. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - this document has been aligned with IEC 62271-1:2017 and IEC 62271-102:2018; - clarifications regarding the behaviour of the switch during breaking tests regarding current interruption and restrikes have been added; - conditions of the switch after making and breaking tests have been clarified; - a new informative Annex B intended to provide guidance for the calculation of Ief1 and Ief2 has been added; - new rules for the combination of 50 Hz and 60 Hz switching tests have been defined and a new table (Table 7) has been added; - tests with specified TRV have been modified to be in accordance with the practice described in IEC 62271-100; - the behaviour of the switch during breaking tests has been clarified and boundaries for restrike allowance have been defined; - explanations for short-circuit making tests have been added; - vacuum integrity check after mechanical operations has been defined; - all test voltages for single-phase capacitive testing have been grouped under 7.101.7.3.2 and have been confirmed by simulation and calculation.
Class  C
Available files
Not available under electronic format.
The publication in paper format can be ordered << here >>.
Status
Status IEC PUBLICATION
Situation Currently active
Replaces  NBN EN 62271-103:2011
Origin
Committee CLC/TC 17AC
High-voltage switchgear and controlgear
Approval
BEC Approval 2021-06-15
NBN Approval 2023-11-15
NBN Status New
Date of ratification (d.o.r.) 2021-06-15
Date of announcement (d.o.a.) 2024-02-10
Date of publication (d.o.p.) 2024-05-10
Date of withdrawal former edition (d.o.w.) 2026-11-10
IEC file modification date 2023-11-10