| 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 >>.
|
| Committee |
CLC/TC 17AC
High-voltage switchgear and controlgear
|
| 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 |
|
