Standard

NEK EN 50089:1992

Withdrawn

Note: This standard has a new edition: NEK EN 50089:2022

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Abstract

This standard applies to cast resin partitions pressurized with inert gases, for example sulfur hexafluoride or a mixture of gases such as sulfur hexafluoride and nitrogen used in indoor or outdoor installations of high-voltage switchgear and controlgear, where the gas is used principally for its dielectric and/or arc-quenching properties, with rated coltages - 1kV and up to and including 52 kV and with gas-filled compartments with design pressure greater than 3 bar (gauge); and with rated voltage 72,5 kV and above. The partitions comprise pressurized barriers in electrical equipment not necessarily limited to the following examples: circuit breakers, switch disconnectors, earthing switches, current transformers, voltage transformers, surge arrestors, busbars and connections, cable connections. This standard does not apply to high-voltage bushings (see HD 358 83 (IEC 517)

Document information

  • Standard from NEK
  • Published:
  • Withdrawn:
  • Edition: 1992-05
  • Version: 1
  • Document type: NAT
  • ICS 29.130.10
  • National Committee NEK/NK17

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