circuit

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  1. O

    Oven circuit query.

    Hi all, I have a 2200W oven I think that equates to 2.2Kw, on its own dedicated circuit from the consumer unit, the breaker is 32A, the cabling from the CU to the 50A isolator switch and to the oven is I believe 6mm, the L & N are stranded but not the earth. However because the oven comes with...
  2. david74

    Why does it cycle resistance on an open circuit?

    I have a light that trips the 5A fuse. It trips it regardless if there is bulb in it. And regardless of which neutral wire switch is on (it has two). And it did trip the fuse once after I disconnected the fitting (to eliminate it). Then I hooked a tester to it and for some reason it has stopped...
  3. U

    Pottery wheel circuit board

    Hi, I have an old pottery wheel that i am desperately trying to fix. Does anyone know what any of these parts are/ do ? any help would be really apprecaited.
  4. RogerC

    Trip problem.

    Modern ext attached to old redbrick. Kitchen circuit won't stay on. New trip fitted, all appliances unplugged, all sockets removed and de-wired. Still trips, remove circuit earth from common earth strip. It does not trip. Old style red and black cable on one wall but not sure where the builders...
  5. S

    Do dishwashers and washing machines in a new build now require a separate circuit each and an isolator?

    Was wondering if new regulations require a separate circuit each and an isolator?
    • Sparks1974
    • Thread
    • build circuit isolator machines new new build require separate washing
    • Replies: 7
    • Forum: Ireland
  6. W

    Spurring of ring final circuit

    Is it okay to spur off a ring in 4mm to serve 4 x sockets, without a fcu before the first socket??
  7. W

    Final circuit OCPD

    Hi guys, EICR Have a 125a cammando socket protected by a 100amp 100ma RCCB at the unit and it’s OCPD is the fuses in the cut out rated at 100a. Everything is within 3 meters. System is TT. Firstly is this rating of RCCB and supply suitable for socket? If not how would it be coded...
  8. aesmith

    RCD Needed on Circuit to Solar Inverter (UK)?

    Hi, Our solar inverter is connected to a dedicated circuit from an RCBO in a CU in our garage. The RCBO was chosen, supplied and installed by the solar installers. The cable runs up from the CU in plastic trunking, goes through a concrete block wall to the next room, then is clipped to the...
  9. B

    ACA mock test question wrong?

    When I was doing the ACA exam mock test I have been looking at this question and think it’s wrong? A final circuit supplying a 2 kW boiling water tap is wired using 2.5mm2 PVC insulated copper conductors with a 1.5mm2 circuit protective conductor, and is 15 m long. The installation has a Ze of...
  10. G

    UK Should combi boiler be on dedicated circuit.

    (DIYer first time post) I Purchased a property in 2021 which had just had a full rewire by a reputable company(allegedly) a month before i moved in, previous owner organised and paid for this. I recently changed my bathroom extractor fan and was surprised to find the fan, bedroom lights, and...
  11. B

    Adding spur to radial circuit

    Evening all, I’m hoping for a bit of advice on radial circuits. My utility room is supplied by a sub-CU from an MCB on the main CU. The sockets in the utility room are wired on a 20amp radial from the sub-CU. I would like another socket adding - is it acceptable to run 2.5mm cable from an...
  12. N

    UK Circuit with 3 switches and 4 lights no longer working

    Hi all. We have a complex circuit in our house which I believe has been wired incorrectly. Despite that, it has been working until I changed two light fittings at the weekend (these are temporary and will be replaced with new lights after decorating). This is how it's configured, with both...
  13. S

    Ring final circuit results.

    Hey guys as some of you will know I'm studying electrical installation at York college. I've been trying to get some practice in with my MFT. My results were for the ring circuit. r1. 0.65 rn. 0.65 r2 1.06 Sockets. I was getting in the range of 0.31 ohms and 0.33. I had to open the sockets...
  14. FlashGordon

    Automotive (bike lights wiring circuit)

    So, I am a relative beginner (only fiddle when needed and usually following clear instructions or diagrams) when it comes to 12v switches and relays, but I am needing some help with a set of switches and a micro relay I purchased from Amazon (those who purchase here know most stuff comes with...
  15. Brownie91

    5.0 Distribution circuit section, N/A on paperwork?

    Hi all, This may be a silly question but here goes. When completing an inspection report for a small domestic installation (EICR not install). Would you mark all tick boxes under 5.0 Distribution circuits as N/A seeing at this is for a circuit/wiring feeding another distribution board? Thanks
  16. T

    Stuttering short circuit in a single circuit (several sockets)? How to identify short circuit?

    Hello. There is a persistent short circuit on a circuit (a fuse switch). All plugs have been unplugged. All sockets are free. I have continuous beeping continuity and “30 Ohm” resistance on several sockets. I also have 30 ohms on one outlet, but a stuttering beep. Can I narrow it down by...
  17. V

    My outlet is on two circuits at once...

    I have an ancient home with knob and tube wiring, and a breaker box from the 70s. It's all a mess, with circuits powering random things on opposite ends of the house. The breaker box has breakers with multiple wires spliced or coming out of the stud and all the neutral studs are overloaded with...
  18. tony9i9i9i

    Proving power circuit is fine?

    I have a customer saying her TV keeps going off, I've been to visit 3 times, and the circuit has tested fine, with good continuity on the ring, and the voltage is bang on. I removed and few covers and all looked fine, the terminals were correctly tightened. Not complaining about anything else on...
  19. 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...
  20. P

    12 volt bulbs on 240 volt circuit

    Hi just seen the bulbs on my outdoor Xmas lights are 12 volt 3 watt on 240 volt circuit. How can they be working? They do!

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