circuits

  1. P

    Two or more circuits in a junction box (521.8.3)

    When looking up a reference on another thread I noticed rule 521.8.3 that says "Where two or more circuits are terminated in a single junction box this shall comply with BS EN 60670-22" and it got me wondering what BS EN 60670-22 actually says that has an implication for two or more circuits...
  2. P

    UK Lighting circuits

    Just interested to know the most common method of wiring lighting circuits. My dad always went down the JB route. I prefer looping in/out at the ceiling rose, but am finding many are now looping from switch to switch. Any thoughts chaps?
  3. N

    Correct grounding of metal junction box w/splices for 3 circuits

    I have 3 circuits (microwave, disposal, and dishwasher) entering a metal box where the THHN wire will be spliced to Romex. I spent half an hour reading 2020 NEC Article 250 but didn't see multiple circuits specifically addressed. To ground the box do I just need to pigtail off of one circuit's...
  4. J

    C&GLevel 2365 - mock circuits

    Hey everyone, I'm looking to start the city and guilds level 2 2365 course soon (home study). And just wondering what circuits I will be required to build. I've seen plenty of these GSH YouTube videos where the students have mocked up circuits on sheets of OSB so I wanna get practicing for the...
  5. Devil7

    Sub mains / distribution circuits

    Hi all, new here, just looking for a few pointers. I'm not doing this, just keeping my brain active in these weird times with things i've not learnt yet. How do you calculate cables etc for a single phase sub main (to a garage for instance) - is it the same as a cooker? Ib> In> etc etc?? TIA
  6. D

    How is this switch powered? I thought all circuits needed a neutral?

    Usual problem with smart switches - no neutral at the switch, been plenty of threads on it before. Fortunately managed to find some switches that don't need one. So the circuit's permanently 'complete' since the switch is permanently 'on', and actually power is going to the light, but not...
  7. I

    Borrowed neutral / RCD trips but circuits still live ?!

    I’m just a homeowner, so please forgive me if my question sounds stupid .... i think the lights in the hall of my small bungalow are using a borrowed neutral. I recently went to fit a new light on the ceiling in the hall using the existing connections and turned off the MCB that said “Hall...
  8. happysteve

    Restoring circuits after temporary "distress change"

    Am currently pondering the following situation: - Single phase PVC board, domestic, in an area where TN-C-S is the norm (underground supply etc). - Most circuits protected by 30mA RCD, except lights (B6 60898 MCBs). - Pre-checks before simple job (on garage circuit) reveal no earthing...
  9. CokeCanBrad

    UK Am2 Breaker Selection

    Hi I want too do my AM2 In the future. I want too know the breaker selection for the circuits in the AM2, an acceptable answer (for me.) will be from a recent am2 Passee (successful candidates only.). The circuits are as Follows:- D.O.L Starter, with motor. Carbon Monoxide Detector Ring Final...
  10. Iain Stewart

    How to plan a rewire and new consumer unit. How many circuits, what cost?

    Hi, we need some advice on our scenario with regards to our rewire plan. I will get this out of the way first... We are planning to put the house up for sale. I know people will say let the new buyer do the stuff but in our area there are a few houses for sale and they are all fairly up to...
  11. D

    New house unknown circuits

    Hi - I just moved into a new house. The box has a circuit labeled "Central Vac" and 2 labeled "Septic." The house does not have a central vacuum. I do have a septic system that as far as I know does not use a pump or any electrical power. Any idea why these circuits would be there?
  12. D

    Multiple Exterior Lighting Circuits

    Hi all, Having a brain fart... Looked at a job today, have multiple exterior lighting circuits (4x MCB'S). Can see why there is multiple, as previous electrician was worried about cable lengths etc as the property is quite large. But seem to have multiple Photocells and timers controlling...
  13. A

    No CPC in lighting circuits / Fire damage

    Good evening following a visual inspection in a property that had an electrical fire in the fuse board area obviously i could not actually test anything, but visually identified that the lighting circuits had no earth (not even cut back) now the insurance company ideally want a new...
  14. B

    Correct switches for 2 way pendant + bedside lamp circuits?

    Hi. First post here. Background I have a relative who is an electrician and is about to re-wire our home as a favour. I said that I will order and pay for all of the parts - so that they are here in on-site when he arrives to begin work. I have already ordered a Hager consumer unit; the 10...
    • BillMcLeod
    • Thread
    • 2 way circuit circuits correct lamp light pendant switches
    • Replies: 8
    • Forum: Lighting Forum
  15. T

    multiple circuits stopped getting power same time, replaced all, still no power??

    video explaining/showing problem View: https://youtu.be/VjtsPzzZYrQ this is a eaton cutler hammer circuit breaker. The house was built in 1969 but the breaker was upgraded to this eaton 9 years ago when i bought it. House uses mostly older outlets that are 2 prong, not 3 prong. HOuse does...
    • turnelectr
    • Thread
    • circuit breaker circuits getting multiple no power older power replaced still time
    • Replies: 10
    • Forum: UK Electrical Forum
  16. D

    AFFD's and new circuits

    Hi All, I'm a quilified electrician that's been office based for the last two years, I'm a little out of touch so please go easy if this is an obvious question! I'm having an extention on my home this year and been thinking about additions and it got me thinking, are AFFD's needed when...
  17. C

    Emergency circuits

    Ok, say you had a building that needed backup power. Does British Code require that the loads be subdivided onto different branches and automatic transfer switches based on type and priority?
  18. S

    Havin random breaker fault issues with my home where random circuits trip breaker with no pattern .

    So bought my house in june . When i moved in I hooked ac window unit in my bedroom it tripped the afci breaker for that circuit so I temporarily ran extension cord from spare room to my bedroom to solve the issue . After a week i decided to try hook ac up normally again . Never tripped breaker...
  19. P

    shared neutral in lighting circuits

    I need some help in deconstructing the following ( please see photos of upstairs downstairs switches ) as I don't know what the circuit diagram would look like in this case? It works perfectly well Is seems to be a shared neutral circuit but does not follow the normal convention as shown in the...
  20. C

    Circuits for Motors- how to in the UK?

    How do you size the MCB, wire and protection for a motor in the UK/Europe? How is it typically done? ............................................................................................................. If anyone is curious here how its done in the US: You size the conductor based...
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