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NEK EN 50216-2:2002

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EN 50216-2 covers the gas and oil actuated relay (Buchholz relay) for liquid immersed power transformers and reactors with conservator for indoor or outdoor installation. The device is intended to detect – gas release from the unit to be protected, – oil surge from the tank to the conservator, – complete loss of oil in the conservator. This part of EN 50216 defines the – operating limits, – dimensions, – operational performance, – electrical characteristics, – dynamic characteristics. It applies to relays with dry contacts. It is not applicable to flameproof relays. Should environmental conditions and dynamic stress requirements differ from those detailed in clause 3 of EN 50216-1, EN 50216-2 may then be applied by agreement between purchaser and supplier for those parts which are not affected by such abnormal installation conditions. NOTE EN 50216-2 may be used as far as applicable for relays with mercury switches. Restrictions on the use of mercury devices may be imposed by national regulations.

Dokumentinformasjon

  • Standard fra NEK
  • Publisert:
  • Tilbaketrukket:
  • Utgave: 2002-01
  • Versjon: 1
  • Varetype: NAT
  • Products.Specs.pages
  • ICS 29.120.70
  • ICS 29.180
  • National Committee NEK/NK14

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