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    Voltage drop problem not resolved with bigger cable

    Next thing on my list!! Cheers. 1571478876 Will do, it hasn’t been serviced in a couple of years either. I’ll check connections inside the heat pump in case there’s a problem there too.
  2. T

    Voltage drop problem not resolved with bigger cable

    I hear what you’re saying, I’m getting fed info from the client a bit piece meal. I replaced the cable as it should never have been on 6mm in the first place. I’m now uncovering more issues as I go along. Prime example I’ve got 16mm coming into the fuses, 6mm from the fuses to the meter, then...
  3. T

    Voltage drop problem not resolved with bigger cable

    Have just done some more measurements, volts at main consumer unit only 218 (this is phase 3 of the 3 phase system (heat pump is a single phase)) the other two phases are measuring 230. Measurements in the pump room - with pool pump only running 220v and 4.3 amps, with pool pump and heat pump...
  4. T

    Voltage drop problem not resolved with bigger cable

    Currently working on a job where the client was concerned about the swimming pool heat pump tripping the mcb (the mcb is more than adequate for the job). The heat pump 4kw and pool pump 1.2kw were drawing 27/28 amps with only 197 volts measured at the pump room. It’s about a 60 meter run. I...

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