Recent content by Mattman

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  1. M

    Consumer units

    Hi guys. Just need pulling into check on this one. I’ve been asked to wire an extension including new lights and sockets and SD’s ran from existing circuits in the house. Now his mains was fitted in ‘15; a split load RCD mains, located in a hallway of plastic construction. I’ve always...
  2. M

    Halogen Hob Problems

    Yeah I’ve been reading up on some of the kit dumping small currents to earth for various reasons. The trouble is, the issue is happening so irregularly - I’ve IR tested it with all loads connected to see if there’s evidence of a short somewhere but it’s clear on all accounts. The customer is...
  3. M

    Halogen Hob Problems

    God, this site really bombards you with ads, I’ve been posting half written responses all over because I’ve lost myself! ? Yeah, looks like a leakage tester is best way forward - saves me going back anymore. Just a quick few things I probably wasn’t clear on... The ring is dedicated to that...
  4. M

    Halogen Hob Problems

    Hmm, I was thinking that a while back but I was a 3kw
  5. M

    Halogen Hob Problems

    3kw
  6. M

    Halogen Hob Problems

    Hi all! so I a chippy I work with installed a little kitchen, all appliances supplied from howdens - this particular brand is Lamona. existing 32A ring was extended to pick up a few items (mini extractor, built in microwave, the hob and a countertop twin socket. Circuit tested out fine - a...
  7. M

    Classification of Busbar Trunking

    Honestly, I’m not sure if it’s particulars. It has 70 tap-off points, with each tap-off containing 3 inserts for BS88 fuses. They’re direct wired to the tap off as opposed to the ‘plug in’ tap-off that contains its own switchgear and is simply pushed into the terminals.
  8. M

    Classification of Busbar Trunking

    No problem, it’s a bit of an open one! The way I see it is that the busbar is a circuit, not a distribution board - however due to the amount of sub-circuits it could warrant its own sheet. I believed that any recording for busbar circuit should be taken from the farthest point as this would...
  9. M

    Recording of 3-Phase Circuits

    By ‘hypothetical’ I’m referring to an imaginary situation as opposed to questioning its existence entirely, sorry if that wasn’t clear. I’ve got a good idea of how to proceed now, including your own contribution. Thanks for your help
  10. M

    Recording of 3-Phase Circuits

    Sorry about that! Stumbling my way through the format a bit here I see where you’re coming from, but of a hypothetical 2x 15a BS88’s and 1x 20a BS88 the only one we’re interested in is the 20a, surely? As this provides greater limitations on that circuit. Thanks for the replies!
  11. M

    Recording of 3-Phase Circuits

    How? In I’m leaning that way too. So if a three phase circuit is supplied by a triple pole breaker then it’s acceptable for a single line, if it can’t be isolated by one breaker/fuse then individual lines for the circuit. Seems convoluted though...
  12. M

    Recording of 3-Phase Circuits

    I would personally record the highest rating and make an observation on the other two? If it was IV then you would have to put it right from the outset but the most detrimental in terms of ADS and breaking times would (hypothetically) be the highest of the three.
  13. M

    Classification of Busbar Trunking

    Thanks for the reply! So would you consider the tap-offs not to need recording? Similar to a plug on a socket circuit?
  14. M

    Recording of 3-Phase Circuits

    This was my thought. It seemed a waste of time and paper, coupled with the concept that we are only interested in the highest or lowest (depending on the test) for each circuit.
  15. M

    Recording of 3-Phase Circuits

    Hi all! So, I was filling out a test sheet for a number of 3-phase circuits we did an EICR on. For years whenever a 3-phase circuit exists I have recorded them on a single line (eg. 1/TP or 1/L123) and recorded the highest or lowest value applicable to that particular test regardless of...
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