IEC 62271-200 is an international standard published by the International Electrotechnical Commission (IEC) that addresses the specifications for high-voltage switchgear and controlgear assemblies. As of my last knowledge update in January 2022, the standard is titled "High-voltage switchgear and controlgear – Part 200: AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV."
Here are key aspects covered by IEC 62271-200:
Scope: The standard outlines the scope, definitions, and general requirements applicable to AC metal-enclosed switchgear and controlgear assemblies.
Rated Voltage: IEC 62271-200 is specifically designed for equipment with rated voltages above 1 kV and up to and including 52 kV, focusing on medium-voltage applications.
Design and Construction: The standard provides detailed requirements for the design and construction of metal-enclosed switchgear, covering aspects such as insulation, busbars, circuit breakers, disconnectors, and other essential components.
Testing: IEC 62271-200 includes provisions for type testing, routine testing, and acceptance testing to ensure the quality and performance of the switchgear and controlgear assemblies.
Temperature Rise Limits: The standard specifies limits for temperature rise during normal and short-circuit conditions to ensure the safe and reliable operation of the equipment.
Short-Circuit Withstand Strength: Requirements for the short-circuit withstand strength of the switchgear assemblies are outlined to ensure their capability to withstand fault currents.
Protection Against Internal Arc Faults: Provisions for protection against internal arc faults, ensuring that the equipment can withstand and contain the effects of an internal arcing event.
Environmental Conditions: IEC 62271-200 considers environmental conditions, such as temperature, humidity, and altitude, to which the switchgear may be subjected during its service life.
Documentation: The standard includes requirements for documentation, including information related to the design, testing, and operation of the switchgear and controlgear assemblies.
It's important to note that standards are periodically updated, and revisions may occur. For the most current and accurate information, it is recommended to refer to the latest edition of IEC 62271-200 or consult the IEC website for any updates or amendments that may have occurred since my last knowledge update.
