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circuit

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  1. C

    External halogen light wired directly to hallway light circuit - No isolater / switch

    Hello All, I hope that asking this does not annoy too many Members who think that the answer should be obvious to me: Last night at my next door neighbour`s house who is away on holiday for the next 12 days one of his external halogen PIR controlled lights above the front door came on and...
  2. 1

    12v Auto circuit solution sort! Dodge Ram1500

    Dodge Ram 1500 Gen 4 rear lights conversion (CAD import); Problem. When I brake my rear brake light come on but so do my indicator lights (they don't flash at this time). So I have a wire along it travels a brake signal and a turn signal, when either of those functions are operated. This wire...
  3. K

    Circuit design calculation

    I have a question i hope someone can just give me a little clarification on . When carrying out preliminary cable design for a given circuit we use this formula = ( milliohms per metre x Length x multiplier Factor for maximum operating temperature ). Do we still need to use the the maximum...
  5. stepheng74

    Pir light circuit on 24/7

    I have just turned up at my parent house and they've tried to replace the old pir sensor but now the floodlight is on 24/7. I've no multimeter and no idea which is switchedlive. can I just take out one of the live feeds and put it in Lout, and if it's still on 24/7 try the other live instead...
  6. W

    Using existing oven circuit for 2 ovens

    Hi, Can 2 double ovens both 6.3kw (12.6kw combined) go onto an existing circuit which is 10mm2 t&e, 45a DP switch, 10m length into a 32a MCB at CU? Haven’t employed an electrician yet to be able to calculate and want to buy the 2 ovens with our new kitchen on the finance. Really hoping one of...
  7. S

    Definition of own circuit

    H5 relating to an immersion heating over 15 litres of water says: Should be supplied by their own separate circuit. No mention of sub circuits, nothing. A final ring with 13A mcb off the ring, then a 20A switched-cord outlet connection unit complies. It then has its own separate circuit. A...
  9. R

    How to track down a bad neutral in a home electrical circuit

    Ok, please be aware that I am a 'do-it-yourself-er,' so if this isn't the right place to be posting this thread, let me know where I should be posting it. The other day, my wife plugged in the vacuum cleaner and the whole living room circuit went dead. I figured that it was just either a...
  10. S

    LED strip light load on 5amp circuit

    Hello, Newbie here. Tried to find the answer through searching, apologies if I've missed it. We are refurbing our house. I want to install RGBW LED lightning. 3 zones: A) Round the lantern roof light, B) Kitchen cabinets and Island C), Snug room (TV and cabinets) I would like them switched...
  11. D

    Two Pages for circuit details and test results

    Why is there now two pages, one for "GENERIC SCHEDULE OF CIRCUIT DETAILS" and one for "GENERIC SCHEDULE OF TEST RESULTS" before it was all on the same page GENERIC SCHEDULE OF TEST RESULTS", which had "CIRCUIT DETAILS", on it, this means writing the cicuits twice?
  13. I

    EICR Failed - Open circuit / No continuity

    Hi, I had an EICR done and it failed on one item which was a C2 and that was in our utility room. From what I was told there is an open circuit and no continuity. It took a long while but after questions asked, it was ascertained that the previous owner had an old boiler in the utility room...
  14. M

    Brand new washing machine tripping circuit

    Help please, we've had a brand new Bosch washing machine delivered twice now and both times it's tripping the circuit as soon as it starts the cycle (not when it's initially turned on). The old machine never had a similar problem. We've tried other appliances in the socket and it works. Using...
  15. E

    Can’t find but on what defines a ‘new circuit’

    Hi, I previously read this but can’t find it. I have drilled some holes but haven’t found it yet. Before I instal the wires I thought I’d check nothing had changed but did not bookmark it. I’m installing 4 solar panels (max 18V DC or 21.6V DC open circuit) in parallel to a solar panel...
  17. N

    Need Help with wiring circuit for lights

    Good Morning need some advice please. Yesterday went to change a light fitting in hallway. There are two ceiling lights in the hall controlled by 2 switches at opposite ends of the hall. On removing one light there was the remains of a ceiling rose under the fitting. I noted the position of the...
  18. Spike1947

    Adding another circuit !

    Have a 63A RCD 5 Way box, with a 45A MCB, feds by 16mm2 tails, this in then feeding into a isolator via 10mm2 T&E, that then supplies the feed to a 6.5KW heater that is used prob once a month for 10 min intervals max. Question: I have a spare 63A RCB + 20A MCB box, Can I take another feed...
  19. dgstrange

    Legality of using a lighting circuit to power an observatory?

    I have a lighting circuit cable (1mm) powering a telescope (12 volts) in an observatory total draw 84 watts drawn from a transformer. There is a 6 amp fuse in the consumer unit. This was installed in 1998 by a qualified electrician. Is this still legal or should it be upgraded? Thanks
  21. 2

    Lighting circuit advice please!!!

    Hello all. So I am sure the expertise on this forum will be able to decode this very easily. But it has completely baffled me. I'm in training so forgive the ignorance. Doing a bit of dead testing on a lighting circuit downstairs. Came across this at a light fitting. Appears that the colours...
  22. R

    Pump wired in 2.5mm on a shower circuit 10mm on Type B 40 acceptable ?

    Good evening all, I’m currently part way through my apprenticeship and we are working on IB, IN, IZ and IT and volt drop today. And it got me thinking I have seen a circumstance at work, where: A shower has been wired in 10mm T+E on a 40A breaker. But then from the shower isolator switch a 2.5mm...
  23. S

    RV Park branch circuit feeder size

    I am working on a RV Park and I have a question. I plan on installing 4/0 quadraplex AL URD cable to 10 pedestals on a 200 amp circuit and downsizing the wire to 2/0 Quadraplex AL URD cable for the last 4 pedestals. I have calculated voltage drop and everything is below 4%. Table 310.16 says...
  25. S

    40a circuit breaker6mm t+e

    I have had my kitchen rewired and plastered. I have had a 6mm t+e on a dedicated 32a circuit for a 60cm electric cooker. In hindsight, had i known at the time, i would have asked for a10mm cable to future proof the installation. The cables run from the consumer unit in the attached garage, into...
  26. TheCountSpark123

    If you can't split a circuit?

    I am a retired electrician and I've been out of the game for a while. My son asked me a question the other day and I wasn't too sure how to answer it so thought you lot might. He wants to use rails to supply 5 modules, each module will have 40 small actuators that operate at 24VDC at 0.9As...

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