circuit

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  1. Michaelwgroves

    Boiler circuit 16A MCB

    I'm following a spark who used an existing Panel Heater circuit, for new gas boiler circuit 6 months ago. The panel heaters were removed, so it's now a dedicated boiler circuit. I'm doing an EICR. I've found a number of faults; 1. No grommet in Consumer unit knock out, used for gas bonding (It's...
  2. S

    Add extra 13A sockets to Cooker circuit.

    There is a severe lack of sockets in our kitchen. We have a cooker control switch with a single socket in it, but no cooker connected. Would it be possible to run extra 13A sockets off the cooker control circuit? If so, would this need to be done by an electrician to be complient with regs...
  3. W

    If you have 3 single core cables in conduit for a singular circuit would this be classed as bunched?

    Hi there, I'm Currently doing my design calcs for my college project and doing the actual Zs calculation. Formula is Zs= Ze (or Zdb) + (R1+R2) Then for (R1+R2) you find the (R1 +R2) per metre value in the On site guide appendix i - i1 , which for me line and cpc are both 1mm so its 36.20 . I...
  4. Rebwar

    Circuit Summary and load calculations, L3 design project

    Hi Could someone check my answers in the page aploaded please? I'm not sure about my answers according the notes number 1 to 4 and also the stated circuits. Thanks
  5. V

    Adding a socket to a garage circuit.

    Hi everyone, I've got a garage with a circuit that looks like this: I believe it's a radial circuit coming out of the MCB with a current rating of 20A. It goes in to a switch containing a 5A fuse (fused spur?). It then has two wires coming from it: one for a bulb, and the other for a socket...
  6. timhoward

    4mm shower circuit 8.5kw shower

    At a bread and butter job, loose socket, socket not working, change two lights. Sticking out rather like a sore thumb was this (I removed the wire to check size): I finished the other work, then said could I have a look at the shower as I've got a concern. It was 8.5kw shower. 6 sq mm cable at...
  7. MaintenanceSpark

    Separate bathroom circuit

    Hi guys. I'm a Trainee Maintenance Electrician so please excuse my ignorance on bathroom wiring etc. After reading this forum and watching youtube (Artisan, Bundy, CRJ Electrical) I've learnt that my bathroom should be RCD protected but the problem I have is that none of my lights in my house...
  8. _KaCe_

    Trouble shoot why a ground fault circuit breaker keeps tripping.

    I installed outdoor lighting and outlets. I finished this past year. I passed my inspection on April 2022. I was so pleased, BUT now the circuit the outlets are on has a problem... the circuit keeps tripping. Question 1: I was wondering if there's a way to test the circuit breaker itself? Then...
    • _KaCe_
    • Thread
    • breaker circuit circuit breaker fault ground keeps testing tripping trouble
    • Replies: 3
    • Forum: DIY Electrical Advice
  9. L

    Replace old fuse wires with circuit breaker?

    This appears in our Building & Pest report: "Safety switch installed, old fuse wire fuses still in use, recommend replace with circuit breakers." The home was built in the 1980s. Are old fuse wires dangerous? How dangerous are they? What are the risks of replacing with circuit breakers? Are...
  10. T

    Capacitor in AC circuit

    I have a question about a school circuit called a capacitor in an AC circuit. The capacitor is connected directly to the AC source and the phase shift is measured, which should be 90° voltage to current. My question is whether this phase shift will be 90° in every case or this also depends on...
  11. joshimoto

    UK Wiring new Hob / Cooker into circuit

    Hi folks, DIYer here, hoping for some advice before most likely calling in a spark. I'm looking to wire in new cooker and hob (separate units). Max draw 3.5kW and 7kW respectively. I believe the circuit is radial from consumer unit (32A RCD) to 45A DP switch plus socket. Have done diversity...
  12. Q

    Switching and isolation for cooker and hob on same circuit

    Evening all, I'm upgrading my kitchen electrics replacing the current gas hob for an induction hob. The oven was previously plugged into the kitchen ring. My thoughts are that with diversity and the fact both the oven and hob are on 13amp plugs or rated at less than that, then they could go on...
  13. B

    Does bathroom light circuit required to be a dedicated circuit?

    Does bathroom light circuit required to have dedicated circuit or is it ok to be wired to other light circuits? I am getting quotes for electricians and what to make sure they are doing the right thing. From my past experience most of a cheaper trades persons would cut a lot of corners and it...
  14. SEGOVIA123

    Garage and House Circuits—problems with circuit breaker tripping in Garage

    Hi My main feed comes into the garage, feeds into the meter and then out to another box with a 60AMP fuse then into the house consumer unit. There are tails feeding the consumer unit in the garage, which up until recently didn't have any RCD protection. As part of a recent...
  15. N

    Circuit numbering confusion?

    Just watched this and can't argue with his logic, but I'm yet to see a board numbered in this way... Anyone do this?
  16. mrkent

    UK Adding an additional light to an existing electrical ring circuit

    I have a working circuit setup connecting the CU to a switch and light. I want to add an additional light to this circuit, do it use the Brown or Black as live. See images attached of existing termination and loop.
    • mrkent
    • Thread
    • adding additional circuit electrical existing light ring ring circuit
    • Replies: 6
    • Forum: UK Electrical Forum
  17. E

    Outdoor and indoor lighting on same circuit

    Hi The ground floor of my house has two lighting circuits which are each protected by an MCB. One of those circuits is just indoor lights. The other circuit covers both indoor and outdoor lights. There is no RCD protection for either of these circuits. The problem with the circuit that covers...
  18. C

    How can i have power flowing in a circuit where 1 item works but rest of chain does not?

    There is power flowing. I have checked with multimeter. One light on the line works..even replaced the switch it is connected to. Rest of line still down. Been down for months since a large storm although no indications of lightening strike. Replaced breaker on Sunday...no dice. On Tuesday power...
  19. lozarus

    Melted my brain thinking about EIC for a circuit on a submain...

    Apologies if this is in the wrong section - appreciate it's more of an educational question. That said I have 2391 - but the classroom environment is very different to out there in the field and I'm only really starting out in my inspection & testing journey - so please understand if this seems...
  20. Dougie Reid

    Can a glow plug has no continuity & resistance but still short a circuit?

    I have an original 250w glow plug in my 8yr old pellet boiler that's used to light the pellets during the start up phase on my boiler. The boiler has been tripping the fuse on around 50-60% of the start-up cycles. Using a bit of trial & error I think I've narrowed it down to the glow plug :)...
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