lighting circuit

lighting circuit

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  1. W

    Fault on lighting circuit

    Bear with me because this is long. So got an intermittent fault on the upstairs lights. Trips the mcb after a few hours, getting a reading of 0.01 mega ohms between live and earth at the board, tested cable going to db from first switch and it’s clear. Tested the cable going from first switch to...
  2. O

    Earthing at a light switch

    My flat has been rewired, the old light switches have been replaced but the original metal box recessed into the wall and still in situ did not have an earth terminal. the electrician has renewed the wiring with twin and earth but just the earth loose with green sleeving over it. ie not...
  3. 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
  4. 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...
  5. 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...
  6. J

    Industrial lighting circuit

    Hi guys I have some industrial lighting circuits to wire in a workshop and was after some fresh ideas/suggestions as to how i could best do this. Have done a few of these before and in the past i have sometimes run radials in SWA cable to single gang socket outlets. The High Bay LED lighting...
  7. stemill

    Loop test fail on lighting circuit.

    I'm moving a socket installed on a lighting circuit (installed by previous owner who was a professional electrician so I assume he knew what he was doing). The socket is used only used for a lamp which is controlled by a wall switch. I've installed new/moved sockets previously and always check...
  8. D

    How to test RCD for lighting circuit

    I live in Australia; you can use a socket tester to test the RCD for the power outlet circuit. Plug device to a 3-pin wall socket, set testing mA to 30 on the device and press test button. What is the best way to test RCD on the lighting circuit – from an existing B22 or E27 lamp holder? (Not...
  9. L

    No earth in lighting circuit

    Hi, Just interested in learning what others do when faced with an old lighting installation where there is no earth and you’re installing a metal class 1 light fitting. I would assume you would have to run an earth in? Also, with class 2 fittings, is it the box where the cables are terminated...
  10. T

    Testing a multi point lighting circuit

    Hi Im an apprentice and just wanted to clarify domestic style wiring since i work industrial and don't deal with conventional wiring. in college and the AM2 the only exposure to testing lighting is of a single point that may be switched either one way 2 way or intermediate. that doesn't worry me...
  11. Rarbur

    Lighting circuit trips RCD but not MCB, can’t find E-N fault

    Long shot but thought I’d try, have a lighting circuit that trips the RCD as soon as the neutral touches the neutral bar for said RCD. Bypass that and it works fine just on an MCB so would think earth-neutral fault, but doing an IR test between N and E shows as a pass (>99M ohm). So unsure of...
  12. HappyHippyDad

    Solution to a C2 - No CPC on lighting circuit

    I've tried to research and form a plan without asking on here, but I'm just going around in circles. Just completed an EICR. The wiring ranges from new metric colours to old imperial cable. There are 2 lighting circuits, both containing class 1 fittings. Most of the fittings have a CPC, but...
  13. M

    Bathroom fan: do UK regs require connecting via lighting circuit?

    Hi, I've just had some electrical work completed in the bathroom; I've recently refurbished the bathroom, replacing the old electric shower with a mains/mixer. I had bought an inline fan and a separate humidistat/run-on timer module with the idea that it could be installed using the old...
  14. M

    24V dc lighting circuit

    I am having a flat roof constructed with solar panels over. As it is a cold, vented flat roof I will be having 175mm of Cellotex insulation immediately above the ceilings which I am reluctant to dig into to fit downlights (which I have never been the world's biggest fan of anyway). My thoughts...
  15. sparkydave85

    Can I install one lighting circuit for both Dali and normal switching lights?

    Can I install one lighting circuit for both Dali and normal switching lights?
  16. W

    GFCI in Closet keep tripping, found it was tied to overhead lighting circuit. Normal?

    Hello all! Newer house, original owner(Florida). no change to electrical system. Just found there was an outlet (GFCI) in the closet so I wanted to put a paper shredder in there but it didn't work because the GFCI was tripped. Would not reset so I changed it out, new GFCI will not set either. IN...
  17. D

    UK domestic lighting circuit. - What the........

    About me. Fastidious about wiring. Degree in Mechanical Engineering, extremely good spanner monkey (rebuilt engines, gear boxes). BUT I know my limits and what I am allowed to do according to Part P of the UK building regs etc. Just been in the loft to do some tidying and found a right rats...
  18. D

    Advice on using lighting circuit to power cctv (12v/3A)

    Hi All, so I have a outdoor cctv camera that you plug in - I'm thinking of attaching this to the soffit and going into the loft from there (very easy access). Can I just wire this into the lighting circuit, I've already done some work in the loft for various lights and an extractor fan so I...
  19. L

    Lighting circuit still live after breaker turned off

    Lighting circuit. 3 rooms. I turned the breaker off and in the last room of the circuit I checked the light switch to make sure lights didn’t come on. They didn’t. Anyway….the circuit still live at the fitting. The wire from the previous room loop. I then turned the rcb off on the side of...
  20. Dartlec

    Sockets on a lighting circuit - C3 or C2?

    Fun EICR at an HMO today, which was installed new 5 years ago (not particularly well!) Lots of niggly things that I'll sort, but in the kitchen cupboards were two unswitched sockets which confused me for a while. Turns out they are connected to the lighting circuit, switched by their own...

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