Welded composite enclosures of cast and wrought aluminium alloys for gas-filled high-voltage switchgear and controlgear

Designation Number:
CSA C50069
Standard Type:
National Standard of Canada - Adoption of International Standard
Standard Development Activity:
New Edition
ICS code(s):
29.130.10
29.035.99
Status:
Proceeding to development
SDO Comment Period Start Date:
SDO Comment Period End Date:
Posted On:

Scope:

Scope: 
Via EN 50069:2018 
1 Scope  
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 or outdoor 
installations of high-voltage switchgear and controlgear with rated voltages above 1kV, where the gas is used 
principally for the dielectric and/or arc-quenching properties with rated voltages: 

- above 1kV and up to and including 52 kV and with gas-filled enclosures 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 pressurized components such as the centre chamber of live tank switchgear, gas-
insulated current transformers, etc. 

Project need:

To maintain alignment with CENELEC international requirements (new 2018 edition of adoption). This proposed New Edition is being developed at the request of the Technical Committee on Switchgear and Controlgear. It will provide the industry with latest international requirements.

Note: The information provided above was obtained by the Standards Council of Canada (SCC) and is provided as part of a centralized, transparent notification system for new standards development. The system allows SCC-accredited Standards Development Organizations (SDOs), and members of the public, to be informed of new work in Canadian standards development, and allows SCC-accredited SDOs to identify and resolve potential duplication of standards and effort.

Individual SDOs are responsible for the content and accuracy of the information presented here. The text is presented in the language in which it was provided to SCC.