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neutral

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  1. C

    Shock from neutral when changing light fitting - why?

    Hi All, I was changing a light fitting (something I've done many times before). Since it was a switched live to the ceiling fitting I had left the circuit still live (I know but no comments about that please!). Touched the neutral and got a small shock. So used a test screwdriver to see if...
  2. G

    Cloth wiring outlet box load wires got disconnected, how to identify hot and neutral

    Hello all, I have an outlet box in my house built in the 1920s that I am changing to a GFCI. The wiring is cloth wiring so I have a hot and a neutral. On this outlet box I have the hot and neutral line wires coming in from the bottom, and on the top I have 2 load wires which go up to the...
  3. C

    Use neutral as switched live

    Hi: I have 5 lights in the ceiling in my living room. Currently all 5 go to a single box in the attic with some home automation dimmers in the box, and there is a single power in to that box. 6 wires to the box. I want to remove the 5 dimmers in the box, and replace with 5 lights switches in a...
  4. captaincaveman

    Anyone ever come across a neutral using the earth on purpose?

    Just interested in peoples thinking on using the neutral through the earthing system like I came across today. I've come across many wrong polarities tripping mcbs before but not this. The outside front door light live conductor was wired into the lightswitch inside but the neutral was wired...
  5. S

    Smart Thermostat Recommendation - Live and Neutral Wires Only

    Good Evening Everyone Was looking to replace both my old Danfoss mechanical thermostats with a smart thermostat. Was wondering if anyone had recommendations for the following set-up (circuit is 240v). There are 2 solenoids, one for upstairs and one for downstairs, and a thermostat each for...
  6. C

    Neutral fault with LED light fixtures

    Hi everyone, I'm new to the industry(Qualified a few months ago). I have a client with 6 LED light fixtures on the same circuit/breaker, 3 are working fine and 3 seem to have a neutral fault(230v live to earth,+/-90v neutral to earth and +/-130v live to neutral). The rest of the installation...
  7. D

    Determining if wire is neutral

    My wall box has two switches with two black wires connected to each. It also has four white wires on a single nut, not otherwise connected. Are these neutral wires? If not sure, how can I test?
  8. J

    Floating Neutral and Metal back box - OK?

    My Champion generator is set up (according to the manual) as having a floating neutral. The plan was to run a 16A commando hook up cable from the generator, to supply the house via a 4 gang extension cable taken from the hook-up, to power class 2 devices in the house However, instead of...
  9. Shaun H

    Came across this, classic example of question no fused neutral

  10. S

    Open neutral on residential outlets

    I have three outlets (that I can find) that are showing open neutral. I have 80v across hot and neutral, 120v at hot to ground and 28v neutral to ground. I also have one switch to a light that I think is on this circuit that is not working. If I pull the switch and wire it directly (white to...
  11. Calebp43

    Neutral current in a single phase installation confusion

    In a 3 phase system the neutral carries current that is unbalanced. Okay. So in a single phase domestic household the neutral carries the same current as the live otherwise the RCD will trip. So does that mean if we have a perfectly balanced 3 phase system then if I go to one of the phases and...
  12. J

    Double pole or Single pole + Neutral for domestic extension supply?

    I've been carrying out quite a few domestic extension first fixes recently which involves providing a power supply installed from the properties mains. I have always just Henley blocked from the properties main consumer unit tails into a 63/80/100A BS-88 fuse Main switch board then from the...
  13. L

    Shared neutral supplying subpanel

    Newbie to this forum here. I have a question that I need to resolve fairly soon. I have 10/3 from a dual pole 30A breaker using one side of the breaker from the main panel that is direct burial wire going to a junction box outside the house. I need to supply a sub panel to a building. Can I use...
  14. V

    Neutral Conductor Size - Main Switch to Neutral Bar

    Don't come across this very often - but I've had a CU delivered for a caravan job (not static btw), and it's been supplied with a neutral conductor from the main switch to the neutral bar! Definitely an oversight, but I've got plenty of singles cable in stock, so rather than send it back, I...
  15. R

    UK Neutral to Earth is live (230v) in my distribution board?!

    Has anyone experienced this before? The neutral bar is live.. nothing had tripped and everything works fine in the property. any ideas?
  16. J

    Generac GP8000e/Need to be grounded? Remove Neutral?

    I have a Generac GP8000e generator that I plan on back feeding the main panel of my home with the portable generator, power inlet box L14-30a and breaker. First, I will install an interlock between the utility main breaker and the generator back feed breaker. I will only use the L14-30...
  17. R

    3-blade 240VAC Dryer Socket, Where is the Ground or Where is the Neutral?

    My California dryer wall socket has 3 blades shown in picture. I measured across bottom 2 blades = 240VAC. I measured top L-blade with one of the bottom blade = 120V. Is the L-blade a neutral? If yes, why no Ground blade? If the L-blade is Ground instead, then why no Neutral blade? I tried...
  18. Raptor0014

    Is this a fused neutral cutout?

    I’ve not seen one of these before and i have a memory of them needing to be upgraded by the DNO. Just wondering as well what the BSEN is for it. Is it 1361 or 88-3
  19. G

    Arcing on neutral when isolated

    This one is baffling us. A supply and DB have been installed . A section board feeds the DB via a 95mm 4 core swa with no separate earth, only the armouring as CPC. Outgoing circuits are connected at the DB and SOME in the field A 4mm neutral wire came into contact with some totally un earthed...
  20. R

    Neutral and ground separated in Main panel

    Why would neutrals and grounds be separated in a main panel? This is a new build with GFCI breakers for the range and dryer; does that have something To do with it?

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