High-voltage switchgear and controlgear - Gas-filled welded composite enclosures of cast and wrought aluminium alloys
STANDARD published on 1.4.2019
Designation standards: ČSN EN 50069
Classification mark: 357179
Catalog number: 507065
Publication date standards: 1.4.2019
The number of pages: 20
Approximate weight : 60 g (0.13 lbs)
Country: Czech technical standard
Category: Technical standards ČSN
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 voltage