CENELEC - EN 50052
High-voltage switchgear and controlgear - Gas-filled cast aluminium alloy enclosures
|Publication Date:||1 December 2016|
|ICS Code (High voltage switchgear and controlgear):||29.130.10|
This European Standard applies to cast aluminium alloy enclosures 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 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 and with gas-filled enclosures with design pressure higher than 300 kPa relative pressure (gauge);
- and with rated voltage above 52 kV.
The enclosures comprise parts of electrical equipment not necessarily limited to the following examples:
- 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.