neutrals

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  1. MaintenanceSpark

    When do Neutrals need to be switched?

    Sorry if this is a silly question but I can’t get an answer from colleagues as it’s a “I dunno”. So I thought I’d ask here! Some of our TPN DB’s have a 3 pole main switch with a block for the neutral. Other TPN DB’s we have here have a 4 pole main switch which switches the neutral. It’s the...
  2. G

    UK Steel Tape Armour and Reduced Neutrals

    Hi, someone has ordered Steel Tape Armoured cable instead of SWA. Can I use this armour as a CPC the same as SWA or not and if so is there a table so that I can check the figures. Secondly, correct me if I am wrong but 3ph with a reduced neutral should only be used on a balanced load ie a...
  3. G

    Reduced Neutral Sizing

    Hi, just want to check something. I am on a facility which has a 4 core 70mm non armoured feed from the transformer, coming into the DB at the other end it is now a 4 core 25mm non armoured cable (obviously it has a joint somewhere) and the earth conductor is from an unknown source, but both of...
  4. H

    Light fitting: two neutrals and two lives coming out the wall.

    Hey there! I am fitting four lights in my kitchen and have come across two issues (pictures attached - this is really the best quality I could do, sorry). 1: the light fitting takes one live (brown) and one neutral (blue) wire in a white junction that goes inside the fitting. In two of the...
    • hspottinger
    • Thread
    • coming fitting light neutrals out wall
    • Replies: 4
    • Forum: DIY Electrical Advice
  5. Lukaszbjj

    Extending neutrals with WAGO's in the socket

    Hi the other day I opened the socket just to find out that 2 neutral wires were damaged with visible copper so I decided to cut them short and put in WAGO 221 and extend just one cable that went back to the socket, and now Im thinking if it's correct or maybe should I extend each wire...
  6. Rockingit

    Neutrals at switch drops

    So a brief foray into domestic has me slightly bemused…. Neutrals at switches. Easy enough if you’re wiring loop at switch, but if you have good reason to loop at light then logically all you need do is drop 6243 as your switch cable, simples. Except…. What about on a 2way / int run where...
  7. P

    3 phase and borrowed neutrals?

    Hi everyone, I want to repurpose an old cable that was previously used to power a 3-phase machine. The cable is 4L1.5 micc, and I don't want to replace it unless I really have to, as the cable run is convoluted/inaccessible to say the least. It was obviously installed before many other things...
  8. Raptor0014

    Finding borrowed neutrals

    Evening all. I did an EICR recently and then changed a consumer unit. As part of the EICR process I take off around 25% of all accessories to check terminations etc. Property was well maintained and EICR was satisfactory with a few C3s. Board was a split load single RCD board. Light and...
  9. Z

    All neutrals connected at one point - two rcds.

    Hi guys. Fuseboard looks fine, but all neutrals are connected at one point outside the fuseboard. That way both rcds trip on fault on any of the circuirs.How would yiu code that? P.s. also no glanding and cables rubbing on the sharp edges of CU? Thanks
  10. H

    Baynet fitting with two neutrals

    Good Evening, I'm having a bit of grief wiring up a new light. The light that come down had an old style bayonet fitting, which had one live connector and two other connectors (new lights only have two connectors. Can anyone help? All the lives (red went to one connector, two blacks went to...
  11. Aaron b

    Isolating neutrals, working live?

    Hi, where only single pole isolation is achievable and a shutdown is problematic, what is the best practice with neutrals when connecting and disconnecting circuits? I understand that all live conductors should be isolated and we shouldn't work live, but out of the class room it is not always...
  12. HappyHippyDad

    What is going on with this cut out and the neutrals.

    I have just (kind of) completed an EICR. It was the worst house I have ever been in. They are horders plus the house was filthy. I was unable to get to certain areas. I realise there are a number of fails (c2's) with the picture but my question is regarding the 2 x 10mm tails coming out of the...
  13. N

    Are shared neutrals allowed in USA in 2021?

    Planning a layout for new kitchen with (2) two 120‑volt circuits wired with (1) one three‑wire cable connected to a double‑pole circuit breaker. Is this: A) Allowed B) Not Allowed Black powers one circuit Red powers other circuit Green neutral serves both Ground not shown ps Image doesnt show...
    • nyDIYelectric1
    • Thread
    • allowed codes neutrals screwfix usa wiring
    • Replies: 9
    • Forum: UK Electrical Forum
  14. T

    Tie wrapping RCBO neutrals.

    Hi guys, if 16 RCBO neutrals are tie wrapped together for neatness, are there any thermal considerations such as grouping factors to be taken into account?
  15. H

    Understanding isolated (unbonded) neutrals and grounds in panels/subpanels

    I have a question regarding the isolation of grounds and neutrals in a subpanel. First, please bear with me as I describe what I see in the panels associated with my home. I live in a mobile home. My meter feeds directly into a 200-amp cutoff panel. Within that panel are two, 100-amp breakers...
  16. D

    Help me understand why my house is switched on neutrals?

    Good evening everyone, I'm hoping one of you professionals can help me understand what is going on with my home wiring and confirm my thought process. We bough a home in July, built in 1993. As we have painted and remodeled I have been replacing switches and cover plates as to be expected. When...
    • DIY4life
    • Thread
    • house neutrals switched understand
    • Replies: 12
    • Forum: DIY Electrical Advice
  17. T

    AM2 lighting circuit - confusion

    I know this has probably been asked a dozen times on this forum but I just want to make sure that I'm doing this the correct way before going into my exam. I got told that in the am2 I need to have neutrals at every switch in connecters. I have never done it this at work hence the confusion...
    • Theapprenticesparky123
    • Thread
    • am2 circuit confusion lighting lighting circuit neutrals switches
    • Replies: 18
    • Forum: UK Electrical Forum
  18. G

    Multi-core neutrals and earth

    Hi, I am currently training to become an electrician. I have passed all relevant C&G level 2 exams along with C&G level 3 inspection and testing and principles of electrical science. I have been asked to help design some garden circuits but been given specific instruction on how the circuits...
  19. J

    2way switch with neutrals at each point

    Hi, I know there are many ways to achieve this. I just wanted to know that the diagram I have drawn for this 2way switch would work. Just having neutrals at each point, for future smart switches. Thanks and merry crimbo
    • Jakegood
    • Thread
    • 2way neutrals point switch
    • Replies: 7
    • Forum: The Welcome Forum
  20. S

    Switched Neutrals or not

    This question is purely out of interest, I'm a substation apprentice while we do some LV installation work its not much and no design work fitting only. But today I've been helping a sparkie friend do some work(just attaching conduit to wall no actually wiring) for local community group. So...

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