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  1. mark the spark2

    UK NIC certificate query

    An estate of 20 or so houses
  2. mark the spark2

    UK NIC certificate query

    Both the signatures (design, inspection and test) are the same date
  3. mark the spark2

    UK NIC certificate query

    I have just bought a new house and am looking at the electrical installation certificate. It is dated 17/06/19 but the certificate is done to 17th edition. I thought the 18th Edition came into force in Jan 2019? The only thing that highlighted this was my wife tried to switch the extractor fan...
  4. mark the spark2

    PV and Back up Generators

    Thanks for comments. The inverters are Fronius Symo.
  5. mark the spark2

    PV and Back up Generators

    Wow thanks that sounds interesting. I will see what is available for our MCCB main switch. Thanks
  6. mark the spark2

    PV and Back up Generators

    Thanks. I am not familiar with shunt trips could you explain how they work or what they do? Thanks again
  7. mark the spark2

    PV and Back up Generators

    Thanks for your help. Unfortunately we didn't need to fit one on this site the DNO are getting more relaxed about them.(sods law really as normally we do build and fit them). I think it will have to be a contactor with the coil being fed from the generator feed so that when it kicks in it knocks...
  8. mark the spark2

    PV and Back up Generators

    Hi I don't know if anyone can help but I was wondering if anyone has come up with any solutions to this problem. In that we have a 210kw pv system connected to the mains panel at a big office block and they have a back up generator with auto change over fitted so when the grid fails the...

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