circuit

  1. mattgriff88

    Can I remove switch to leave circuit permanently on?

    Hi, I have recently moved in to a house where there is a switch outside the bathroom that controls the power to the shaver socket. Never seen this before and every other shaver socket I have seen is permanently on. Can I safely remove this switch so the power to the shaver socket is always...
  2. 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...
  3. R

    DPDT switching branch circuit from one breaker to another?

    I’m planning a 240V welder circuit in a detached garage with a 100A sub panel. For the 160A or 180A output welders I’m looking at, the conductor can be #10, and a 30A breaker is probably OK, but a 40 would help the duty cycle. Conductor must handle welder's 1eff rating, breaker can be up to...
  4. JodyCowart

    2 Wire Copper circuit in older home

    Without running new wire or at least ground, next best is GFCI receptacles for limited protection. I know about a bootleg ground to fool a tester. I am not going there! Does each receptacle need a costly GFCI or can standard receptacles be used down stream on the load side of the first GFCI and...
  5. S

    Shower circuit tripping

    Shower circuit (40a mcb 10mm cable 8.5kw shower ) tripping after 5 mins RESET trips after 2 mins...changed shower /cable /isolator still tripping I'm stumped
  6. impish15

    Testing on internal light circuit

    Hi I know I have to do more testing but I just want to see if there is something I’m missing. Customer said light fitting in the loft was crushed causing the breaker to trip. I thought easy fault to rectify which was very naive of me. I arrived disconnected the damaged switch which was in...
  7. S

    Testing the wiring in an outdoor circuit

    Forgive me if this is easy to search - I was not able to find anything obvious here or on YouTube. I've got an outdoor circuit that has failed. Specifically, one outlet failed and then the second one went about a year later, with no trip of the breaker. How do I test the wiring to make sure it...
  8. hcanning2012

    Convert 50A to 20A circuit.

    Hi, I've a 50A circuit (looks like 6 gauge wire - see image) that used to service an old hot tub and I want to convert it to 20A 12/2 to service a garden shed instead. Add a light and outlet. I'm not an electrician. I've a panel outside where the hot tub was with 2x 50A fuses. Wondering how to...
  9. W

    Capacitor in loom - why?

    Hi Gurus, I found a capacitor/condensor in the wiring loom of a motorcycle. It's connected between the switched power circuit and earth. It has a broken connection that looks like it broke many years ago (rusty) but the bike runs perfectly well. I was wondering if anyone knew the purpose of such...
  10. K

    UK Is a new circuit board required?

    Hello, in preparation for renting out our home we have requested an Electrical Certificate and our electrician is doing a few minor tidy up jobs before the inspection takes place. He has just advised that we should get our circuit board replaced as it is in a plastic casing. The board is on...
  11. E

    an overload current is classified as an overcurrent occuring in a circuit which

    an overload current is classified as an overcurrent occuring in a circuit which is electrically sound has a fault between phase conductors has a fault between Neutral and Earth has a fault between line and earth
  12. 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...
  13. S

    Light circuit fault. 230v on l and n no light working

    Hi There is a lighting circuit fault in a property with the downstairs lighting circuit. I have tested the voltage and there is 230v on both line and neutral conductors going to the light pendnat although the pendant (any pendant) isnt showing light . no changes have been made to the lighting...
  14. T

    DIY: 20A oven installation on 40A circuit, can this be done?

    Here is my situation We have a dedicated oven circuit in our house with a 40A RCBO We have bought a dual fuel range cooker which states it has a nominal power of 4800W By my calculations this means it will draw max 20A The power cord of the oven is rated to 25A My question: Are we permitted...
  15. 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...
  16. E

    Several Lightbulbs Have Dimmed and Gone Out on the Same Circuit Breaker!

    Summary (TL;DR) Several lightbulbs in my home supplied by one circuit breaker dim over time and go out in about a year. Right now, the ceiling light in my living room won't turn on at all. It will turn on, go dim for 1-10 seconds, and then shut off completely. There are a host of other...
  17. A

    Help with Readings on circuit

    Hi Can anyone clear up or explain in a bit more detail what could potentially be causing the results I have. I have just tested a 32a ring main wired in 2.5mm twin on B32 Rcbo. There are 8 sockets on the ring and all are in plastic dado trunking in 2 offices. The readings I have are: L-L= 0.76...
  18. oscarelectrics

    Does a circuit board with an SPD protect against internal surges?

    Hello! I'm struggling to find an answer to this question online. I'm new here btw - I'm a DIYer with a physics degree Currently when my fridge motor turns off, I get a transient voltage spike on other devices plugged into the same circuit (i.e. an internal surge) If I upgraded my circuit...
  19. D

    NICEIC Certification Scheme New Circuit - NO RCDs

    A client wants an outdoor socket installing on a new circuit. The current installation doesn't have any RCDs for the other circuits. I would put the new circuit on an RCBO but I'm concerned about signing off the installation with the other circuits not protected by RCD. Anyone know what the...
  20. J

    Kitchen rewire - old ring main - new radial

    Hello, Last year I had some electrical work completed in my house (New CU, SWA for garage, downlights) I informed the electrician that I will be renovating the kitching at some point so he ran a new kitchen radial circuit for sockets and hob and oven circuit. These are on seperate RCBOs, which...

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