BS EN IEC 62271‑108 discusses high-voltage switchgear and r and controlgear. BS EN IEC 62271‑108 applies to high voltage alternating current disconnecting circuit breakers for operation at frequencies of 50 Hz and 60 Hz on systems having voltages above 52 kV.
BS EN IEC 62271‑108 covers single switching devices which perform the functions of both a circuit-breaker and a disconnector by means of contacts housed in a single enclosure, and in which the circuit-breaker contacts in the open position satisfy, or contribute to, the isolating requirements of the disconnector function.
BS EN IEC 62271‑108 details the requirements for a disconnecting circuit-breaker, identifying where these differ from the separate requirements of a discrete circuit-breaker and a disconnector.
BS EN IEC 62271‑108 on high voltage alternating current switchgear and controlgear is useful for:
As the voltage level is high the arcing produced during switching operation is also extremely high. The high-voltage switchgear deals with the voltage which is above 52kV.
Circuit-breaker is a mechanical switching device, capable of making, carrying, and breaking currents under normal circuit conditions and making, carrying for a specified time, and breaking currents under specified abnormal circuit conditions such as those of short circuits.
As a user of BS EN IEC 62271‑108, you will be provided with the guidance on transport, storage, installation, operation instructions, maintenance, safety, and influence of the product on the environment.
BS EN IEC 62271‑108 gives general rules and common safety requirements for high-voltage alternating current disconnecting circuit-breakers and provides you the essential constructional, performance, and test requirements to enable the design, evaluation, and safe operation of these circuit breakers.
BS EN IEC 62271‑108 ensures you the quality and safety of the components and performance of the product by testing and verifying the characteristics necessary for high-voltage alternating current disconnecting circuit-breakers. You can attain electrical protection from thermal and mechanical stresses due to operating overloads.
With an efficient circuit breaker as per BS EN IEC 62271‑108, leakage of current can be detected, and operators can be guarded before any serious harm is done.
As a user of BS EN IEC 62271‑108, you will be able to establish a safe and reliable electric supply system in commercial or industrial facilities of varied sizes. In the event of a short-circuit or failure of the power system, efficient high-voltage alternating current disconnecting circuit-breakers will help eliminate damage to the equipment and prevent disruption to the end-user. The hazardous effects from excessive currents can also be mitigated with well-functioning circuit-breakers. Overall, adopting the global safety standards defined in BS EN IEC 62271‑108, can instil credibility and acceptance for your business.
BS EN IEC 62271‑108:2020 supersedes BS EN 62271‑108:2006, which is withdrawn. It includes:
EN 62271-108 Ed.2.0
IEC 62271-108 Ed.2.0