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  1. H

    RCD test - Tripping 3rd RCD downline at half current

    Thanks for all the replies, make sense I did inform him it was a crazy setup, he said the builders done it all while building the garage. I did test the main RCD which passed fine, until I introduced the garage circuit - it then tripped at 40ms The cable run to the garage is about 25m...
  2. H

    RCD test - Tripping 3rd RCD downline at half current

    Any ideas on this guys? I was at a job today where the customers garage intermittantly trips out at the house DB. Tested the garage ring, end to end, linked out then insulation test - all ok When I done the 1st RCD test on half current, it tripped out the main RCD in the house - on half! Supply...
  3. H

    3 Ph Load test in server room

    Thanks for the replies. Yeah , he's looking to have it logged over at least a 12hr period. I have as clamp meter but he is looking for something more exact. thanks
  4. H

    3 Ph Load test in server room

    Hi guys I'm new to the forum, self employed installer. Recently done my 2391 but now have a customer who wants his server room load tested, 3 phase DB. The 2391 course didnt cover this obviously, and I have no experience of load / probe test kit. He is looking to log the load per phase, load on...

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