What is BS EN 50069 about?
BS EN 50069 covers the requirements for the design, construction, testing, inspection, and certification of gas-filled enclosures for use specifically in high-voltage switchgear and control gear, or for associated gas-filled equipment.
BS EN 50069 applies to welded composite enclosures and wrought aluminium alloys. These enclosures are pressurized with dry air, inert gases, for example sulphur hexafluoride or nitrogen or a mixture of such gases, used in indoor and outdoor installations of high-voltage switchgear and control-gear with rated voltages above 1kV, where the gas is used principally for its dielectric and/or arc-quenching properties.
BS EN 50069 also covers enclosures of pressurized components such as the centre chamber of live tank switchgear, gas-insulated current transformers, etc.
Who is BS EN 50069 for?
BS EN 50069 on high-voltage switchgear and control gear is useful for:
- Manufacturers and suppliers of wind turbine blades
- Manufacturers and suppliers of switch gears and control gears
- Manufacturers of gas-insulated switchgear
- Testing houses/ service/certification providers for switch gears and control gears
- Entities dealing and ensuring efficiency of the system
Why should you use BS EN 50069?
Control gear refers to the electrical disconnect switches, fuses, and circuit breakers used to control, protect, and isolate electrical equipment.
BS EN 50069 states that the switchgear manufacturer is responsible for maintaining a consistent and adequate level of quality of the product. The enclosure manufacturer shall conduct adequate examinations to ensure that the materials, production, and testing comply with the standard.
BS EN 50069 describes complete criteria for material selection, analysis, calculation methods, test procedure requirements, manufacturing equipment, and welding process specifications as well as testing and certification.
Overall, BS EN 50069 guides users to use a structured methodology and a systems approach to support Gas-filled welded composite enclosures and wrought aluminium alloys and to accelerate the uptake of the next generation of energy-saving technologies. These guide users to use enabling technologies to move toward energy efficiency.