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Electrical Fault Finding B

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  • 1. Multiple Choice
    1 minute
    1 pt
    Image

    The accessory pictured is often used in testing when conducting test using what particular method?

    Test method 2

    Test method 1

    Continuity of ring final conductors

    Test method 3

  • 2. Multiple Choice
    1 minute
    1 pt

    The Ze is to be measured as part of the initial verification process, what instrument should be used for this task?

    An earth fault loop impedance tester

    An insulation resistance tester

    An RCD tester

    A low resistance ohmmeter

  • 3. Multiple Choice
    1 minute
    1 pt

    The maximum value of earth electrode resistance for a TT installation protected by a 500mA RCD is given by BS7671 as

    1660Ω

    500Ω

    160Ω

    100 Ω

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