EN 50216-2 : 2002 AMD 1 2002

1 Scope
2 Normative references
3 Service conditions
  3.1 Maximum inclination
  3.2 Operating pressure
  3.3 Sensitivity of the relay contacts to magnetic
      fields
  3.4 Special mechanical conditions
4 Dimensions
5 Operational performance
  5.1 Alarm and trip contacts
  5.2 Oil loss from tank
  5.3 Latching of trip element
6 Electrical characteristics of switch
  6.1 Switch type
  6.2 Rated currents
  6.3 Breaking and making capacity
7 Mechanical requirements
  7.1 Terminal box
  7.2 Testing facility
  7.3 Gas sampling
  7.4 Draining device
  7.5 Presence of gas in the relay
  7.6 Mounting arrangement
  7.7 Pressure and vacuum
8 Nameplate
9 Tests
  9.1 Routine tests
  9.2 Type tests

Gives the gas and oil actuated relay (Buchholz relay) for liquid immersed power transformers and reactors with conservator for indoor or outdoor installation.