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neutral

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  1. jtorral

    Help with shared neutral and wiring for disposal

    Hi My house apparently is wired in an old fashioned way with what I believe is called a shared neutral ??? Dont really know. But my breakers are special they turn two circuits off at a time and instead of a black wire only, one breaker has a black and the other a red. So, I need to hookup a...
  2. M

    20amp RCBO neutral fly wire only 1.5mm

    Why does a 20amp RCBO come with only a 1.5mm neutral flywire when you are driving a 2.5mm power circuit. Aren't you creating a choke, & potential voltage drop. I appreciate it can carry 20amps but it doesn't make sense to me
  3. F

    Wiring lights neutral

    Hello folks I am attempting to wire some new Down-lights in my new house , I have wired a few sets up before in previous home however the cables going into my ceiling rose seem to be missing live cables and not like the standard Twin & earth i have connected before . I can see that there is a...
  4. M

    Can I Do This? Power smart switch with no neutral.

    I've Seen this question asked and answered dozens of times. But never like this. I have a switch that requires a neutral. I do NOT actually have to switch AC power. Yes switch was designed to switch ACc but it's not nnessary for my case. My switch is just going to communicate over wifi to be...
  5. Tmcdiscord

    How to make sure the wire I used for my smart switch is neutral?

    I'm new to this forum, I live in Saudi Arabia. I just installed a smart light switch that requires a neutral line, as in this picture : when I opened the switch light outlet I found a black wire capped inside and not used, I used a voltage detector on the black wire and there was no voltage...
  6. HappyHippyDad

    What are the dangers of poor insulation resistance results between neutral and earth?

    What are the dangers of poor insulation resistance results (i.e <1Mohm) between neutral and earth? If all other tests are ok, what are the dangers of the above? My thoughts are it may indicate a breakdown of the insulation somewhere. However, what are the dangers of this breakdown between...
  7. F

    Neutral from secondary side of a transformer

    I had a question regarding the neutral wire on the secondary side of a transformer. When connecting H2 and H3 in series, H1 and H4 can be fed 480V to step it down to 120V. On the secondary side, I understand having to connect X4 and X2 together, and X3 and X1 together, putting them in parallel...
  8. D

    Borrowed Neutral/Mains humming?

    Moved into a refurbed flat a couple of years ago and there were a few suspect things about the electrical work which I’ve not got round to rectifying yet. I swapped out all the lighting myself over time (funny how all of the installed lamps were incandescent) and noticed that the Bathroom LEDs...
  9. G

    Finding the correct neutral to pull in a DB

    So, I can’t turn off the board, can’t really turn off circuits except the one I am replacing with an RCBO. It’s all singles in trunking no sheaths to trace back to find the appropriate L and CPC, and obviously, nothing is labelled and they definitely aren’t in the correct neutral terminals...
  10. D

    Smart wifi switch install with neutral wire

    Hello all My house is built 2005. I was trying to install ge smart switch which has 4 wire load ground neutral and line. Ge says it’s simple diy install. When I remove my existing switch I am not able to identify the neutral wire which according to ge video is white. How do I find neutral wire...
  11. R

    Ground & Neutral Placement in a Panel

    I am pretty sure I know the answer to these questions, but because this isn’t my own panel, I wanted to double-check. I am installing a single 20amp circuit into this panel in Florida and it seems that the ground/neutral bars are full. I believe that you can only put a single neutral under any...
  12. B

    Neutral wire to the house fell

    Seeking advice. My neutral wire from the transformer fell during a storm. This is at a cottage and luckily I was there when it happened. The surge move around the house and popped light bulbs and the GFI's in the kitchen and bath basically exploded and popped a breaker in the panel. I turned...
  13. R

    Light removal, with connected neutral

    I'm looking to disconnect a two lights from a lighting circuit while leaving the main light connected. I can remove the second switched live to the two lights at the 2gang switch however the neutral is in a Jb under the floor boards somewhere. Is it acceptable to leave the neutral, earth and...
  14. M

    Fused Spur 190v between Earth and Neutral ??

    Hiya Guys, I have a gas central heating boiler that is not switching on at all. It's connected to a clock timer and then to a fused spur. Boiler technician was out today to say the boiler is fine and I need an electrician, hence this post ! He said we have cross polarity on the fused spur. He...
  15. B

    2 Phase and neutral supply ??

    Hi All Question regarding 2 phase supplies. Came across this at a farm house, supply is in 3 phase and neutral to the main dist board, then from the 3 phase board at the farm house out to the garage is a 4 core SWA. They have taken 2 phases and neutral from a 63amp double pole MCB at the farm...
  16. S

    Can I connect the neutral and ground when wiring a 3 wire cable to a 4 wire outlet?

    I recently purchased a steam sterilizer with a PID controller and I'm trying to figure out how to power it safely. The sterilizer requires 240v but the PID (if I understand it correctly) uses the return 120v on the neutral wire. My problem is that I have an old house and the neutral and ground...
  17. R

    Neutral to earth fault affecting both RCDs

    Hello everyone, I'm newly registered having read the boards from the shadows for a while. I have a question about neutral to earth faults and RCDs. I have read around this as much as I can but being relatively newly qualified my experience isn't as much as the collective members here so I...
  18. BiddeldyBwah

    32a three phase isolator neutral bar?

    Came across one of these today at work. Had L1 L2 L3 and switched Neutral, but also had an N link bar inside. Just wondering what it's for?
  19. Anthony Deakin

    Line carrying voltage, neutral no voltage

    Hi all, I have been trying to work out why all the up stair sockets have voltage coming into the line but none of the neutrals. The ring is on a 16amp mcb. Any ideas why? Thank you in advance
  20. M

    Live and Neutral connection in outdoor lamp

    Hello, I'm DIYer. I purchased a lamp but it didn't come with any instructions. Can anyone help me figuring out where to connect L and N? Please see that attached image.

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