protection

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  1. T

    RCD Protection for submains

    Evening all We have been asked to do some redial work picked up by a testing company i a hostel. It has been picked up that is no RCD protection in the rooms There are 5 submain circuits that feed the 20 consumer units, 4 consumers units per submain (B32) Each room have a consumer unit which...
  2. Chinese Dave

    Protection to be used on a 5KW motor???

    Hi, I'm Dave and I was wandering if I could have help with something. If I were to wire a 5KW motor what means of protection should be incorporated into the inverter for compliance with BS 7671? Thanks! :)
  3. B

    RCBO protection type, to settle a debate

    Hi, My QS believes an RCBO provides fault protection only, and we have to enter N/A on the test certs for the additional protection. Is this correct? We deal with TN-C-S and TN-S domestic. I assumed it provided both Thanks!
  4. HappyHippyDad

    Does this require RCD protection?

    I have been asked to connect a 9kW kiln to the consumer unit. The consumer unit is in the garage and the kiln will also be in the garage. All the cable will be surface mounted, probably in conduit. It's a steeple series E consumer unit with spare ways on the non-RCD side and no spare ways on...
  5. Ian1981

    Overload protection to a central heating pump x2

    Is it a requirement to provide overload protection to a central heating pump rated at 2.77amps? I’m kinda under impression that an almost 3 amp pump jamming will get rather hot. I mentioned this to the heating installer who has requested we just installed 2 x isolators for the pumps through a...

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