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DH (2005) 09: Yorkshire Switchgear 11kV FMS/FMS2 oil switch. Mark IV.

  • Document type:
    DH Estates and Facilities alert
  • Author:
    DH Estates and Facilities directorate
  • Published date:
    6 July 2005
  • Primary audience:
    Professionals
  • Publication format:
    Electronic only
  • Gateway reference:
    5202
  • Series number:
    DH (2005) 09
  • Pages:
    7
  • Copyright holder:
    Crown

A report has been received of a disruptive failure where a Yorkshire Switchgear FMS Oil switch containing Mk IV isolating contacts was involved. The failure was found to be at the isolating contacts, with what appeared to be an 'in-tank' event.

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