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EVS-EN 50069:2018

High-voltage switchgear and controlgear - Gas-filled welded composite enclosures of cast and wrought aluminium alloys

General information
Valid from 16.11.2018
Base Documents
EN 50069:2018
Directives or regulations
None

Standard history

Status
Date
Type
Name
16.11.2018
Main
03.04.2009
Corrigendum
01.01.2003
Main
This document applies to welded composite enclosures of cast and wrought aluminium alloy pressurized with dry air, inert gases (e.g. sulphur hexafluoride or nitrogen or a mixture of such gases), used in indoor and outdoor installations of high-voltage switchgear and controlgear with rated voltages above 1 kV, where the gas is used principally for its dielectric and/or arc-quenching properties with rated voltages:
-  above 1 kV and up to and including 52 kV concerning gas-filled compartments with design pressure higher than 300 kPa relative pressure (gauge);
-  above 52 kV concerning all gas-filled compartments.
The enclosures comprise parts of electrical equipment not necessarily limited to the following examples:
-  circuit-breakers;
-  switch-disconnectors;
-  disconnectors;
-  earthing switches;
-  current transformers;
-  voltage transformers;
-  surge arrestors;
-  busbars and connections;
-  etc.
The scope also covers enclosures of pressurized components such as the centre chamber of live tank switchgear, gas-insulated current transformers, etc.
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