service head | Page 3

service head

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  1. E

    Cast Iron Service head???

    Went to a job today. Upon opening cupboard to service head. I am faced with what can only be described as a cast iron service head. Never seen one like this before! Its of a large square shape with tails coming out the top. No sign of fuse. Disn't investigate if there was any way to open it...
  2. G

    Replacement service head

    Just done a consumer unit change in a domestic property. PSSC was 2.4kA, PEFC was 880A. The problem is that the service head is a 30A BS3036 with a Short circuit capacity of 1kA. Recorded this on the certificate advising the customer to contact the supply company to have the service head...
  3. C

    Service head location

    A client wants the service head on the first floor of a building as they have a policy to install their electrical equipment above ground floor level as a security measure. This would mean that the cable would not have protection where it enters the building but only back at the sub station...
  4. B

    3 phase service head and no earth

    Evening chaps, I've been out to a property to do some work (CU and shower circuits) and there's a 3 phase supply but no earth or main bonding. (only one phase in use, single phase meter) The perplexing thing is that I got a Ze of 1.17 Ohms at the board, as I removed every means of earthing...

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