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    2391 : 21#Exam Sample Question (Short Question)

    List three instrument tests which are undertaken to confirm the correct operation of a 30mA RCD installed to supplementary protection against direct contact.
  2. L

    2391 : 19#Exam Sample Question (Short Question)

    State the maximum disconnection time for the following a) 230 V equipment of a construction site with a TN supply b) 230 V equipment on a farm with a TN supply c) 230 V fixed street furniture
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