Wrought steel enclosures for gas-filled high-voltage switchgear and controlgear

Designation Number:
CSA C50068
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:

Via EN 50068:2018 

1 Scope  

This document applies to wrought steel enclosures and their welding. These enclosures are pressurized with 
dry air, inert gases, for example 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 (C128). It will provide the industry with latest international requirements

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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.