circuit

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  1. 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?
  2. 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...
  3. 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...
  4. T

    Working out the length of a ring finals circuit

    r1: 1.15 r2: 1.80 rn: 1.15 r1r2 0.69 To work out the length of a ring in 2.5mm twin would this be correct 0.69/(19.51/1000) = 35m or would you use the r1r2 before you divide it by 4?
  5. Brownie91

    Is SPD mandatory for a new circuit?

    Hi all I am after some advice on an installation I have coming up. Its a new TP+N circuit in SWA (13m run clipped direct) for a 22kW Tesla wall charger. I will be installing a Matt:e unit upstream to provide regs compliant RCD protection & Open Pen protection. My main question is do I need...
  6. 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...
  7. S

    Lighting circuit

    Hope someone can help, ran 3 spotlights and double switch all wired with 1.5mm twin and earth cable from my upstairs bedroom to switch ceiling rose and spotlights separate. The trouble am having is wiring them into old klopplin junction box, with only earth designation points, seems to be a free...
  8. 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...
  9. 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
  10. P

    new circuit in combustible CU and SPD question

    Hi fellow sparks, I've just started out on my own so I'm spending a lot of my time trying to find out the correct way of doing things of installations I havent done before by going through the regs and such. I've been sent this pic by a potential client showing their CU in the garage. The job...
  11. 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...
  12. 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...
    • Rob678
    • Thread
    • 10mm 2.5mm acceptable circuit pump shower type type b wired
    • Replies: 4
    • Forum: UK Electrical Forum
  13. 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...
  14. 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...
  15. gergex

    Losing power to whole house, not tripping circuit breaker?

    Hi, recently moved into 30 year old home. We were renovating it for a few months and didn't notice this issue. 3-4 times over last month the power has gone out to the entire home, without flipping any circuits. When we've been home for it (twice) it has only lasted a few seconds. I'm yet to ask...
    • gergex
    • Thread
    • ausie elec breaker circuit circuit breaker house power power to tripping whole
    • Replies: 3
    • Forum: Australia
  16. M

    Installing touch light switches on 3-way / 4-way circuit

    Hello, I'm replacing standard light switches in my hall and landing with touch switches (not smart, just touch on/off) like these from Amazon; Touch Electrical Light Wall Switch - LIVOLO 2023 New Version 1 Gang 3 Way Modern Tempered Glass Panel Single Pole Electrical Lamp Switch with Led...
  17. O

    UK RCD sockets on RCBO protected circuit

    hi all come across a new build commercial office where radial circuits feeding electrak power track was protected by 32A RCBO at dist board and the electrak tap off leads terminated into RCD under desk sockets why install RCD sockets when circuit is protected by 32A RCBO is this install correct...
  18. A

    Circuit breaker finder doesn't function correctly

    Hi everyone I bought the following device for the purpose of inspection and testing of DPs and its connecions: https://www.ebay.com/itm/266252623696 I used this device to inspect a building where i work and with the help of an engineer working on that location we were able to find that a...
  19. P

    Can I add PIV to lighting circuit with no RCD protection?

    As I've mainly done site work and moved into domestic recently, I'm a bit rusty on stuff like this, but if I'm adding a loft PIV unit to an existing lighting circuit via an unswitched fused spur, if the lighting circuit has no RCD protection am I allowed to install it? Same question for if...
  20. L

    Occasional tripping x one light circuit. But is a double feed the issue?

    DIY query Have narrowed down the source of an occasional trip to one light circuit which is a varilight v-pro master dimmer slave set up. This is one of 5 LED, low total wattage light circuits connected to one 6A RCBO breaker (so the issue could be a short or a ground leak). Zero problems...

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