BS EN 50052:2016

What is BS EN 50052‒ Gas-filled cast aluminium alloy enclosures about? 

BS EN 50052 is an international standard that covers guidelines for the high-voltage switchgear and controlgear.  

BS EN 50052 applies to cast the aluminium alloy enclosures pressurized with dry air, inert gases, like 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.  

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), with rated voltage above 52 kV 

BS EN 50052 also covers enclosures of pressurized components such as the centre chamber of live tank switchgear, gas-insulated current transformers, etc.  

Who is BS EN 50052‒ Gas-filled cast aluminium alloy enclosures for? 

BS EN 50052‒ Gas-filled cast aluminium alloy enclosures is useful for: 

• Manufacturers and suppliers of the enclosers and gas-insulated switchgear  
• Dealers and distributors of the enclosers and gas-insulated switchgear 
• Designers of the enclosers and gas-insulated switchgear 
• Test/ service providers for the enclosers and gas-insulated switchgear  

Why should you use BS EN 50052‒ Gas-filled cast aluminium alloy enclosures? 

Enclosers are part of gas-insulated metal-enclosed switchgear, retaining the insulating gas under the prescribed conditions, helping to ensure maximum service continuity, reducing the risk of moisture and dust entering the enclosures which may endanger the safe electrical operation of the switchgear.  

BS EN 50052 covers the requirements for the design, construction, testing, inspection, and certification of gas-filled enclosures for use specifically in high-voltage switchgear and controlgear, for associated gas-filled equipment, which is necessary to maintain safety, the rated insulation level, protecting the equipment against external influences, etc. 

BS EN 50052 is intended to help you with the design of the enclosure and the production of the gas-insulated switchgear for ensuring to achieve and maintain a consistent and adequate quality of the product. 

BS EN 50052 leads you to sufficient examinations, carried out to ensure that the materials, production, and testing comply in all respects with the requirements of the global standard. It helps you to fulfill your responsibility to exercise quality assurance procedures, so as to ensure the safety of the equipment as well as provide high degree protection to the personnel. 

What’s changed since the last update?  

BS EN 50052:2016 supersedes BS 6878:1988+A2:1993, which is withdrawn.