circuits

  1. D

    UK Radial Circuits Wired in 4mm and 32A MCB

    Guys needvadvice please I was asked to carry out an annual inspction of a DB recently There are 12 in number radial circuits suppling sockets wired in 4mm singles protected by 32A mcb the cables are enclosed in metal trunking and supply 13a socket outlets , are the mcbs now overated as the...
  2. M-B-Electrical-Services

    Recommended reading for motor control circuits

    Hi all. Just a quick one really. Some of my work has started to creep into the industrial sector and, as such, I'll need to do a bit of research in order for me to be able to fulfil my client's needs. The specific sector is Fire Sprinkler Systems so it'll be single/poly phase compressors...
  3. L

    Ring circuits to be retired?

    Could the 30% leakage requirement on rcd, s, combined with the inevitable increase in kitchen appliances with intentional leakage built in, force designers to replace rings with radial circuits?
  4. H

    Multiple circuits passing through an AC isolator

    Multiple circuits passing through an AC isolator what code is this on a U.K E.I.C.R?
  5. I

    Distributing kitchen appliances between circuits

    We're renovating our kitchen, and I have parts of the wall open and can rewire circuits right now if needed. We currently have three 20A circuits serving the kitchen, as follows: *Circuit 1: fridge, microwave, toaster, outlets. *Circuit 2: disposal, beverage cooler (5 cu. ft. mini fridge)...
  6. R

    How Many Circuits for basement

    I’m working to wire my basement. I’ve been researching codes, pulled my permit, and have discussed my project with the inspector. With this being a basement I know I will need GFI breakers. First question, can I put lights on these same circuits? Second how should I break up my circuits...
  7. F

    How many circuits do I have

    I want to get an EICR on my house, the cost seems to be based on how many circuits I have - what do I do to find out how many circuits I have?
  8. D

    Adding a dimmer to light switch controlled by two circuits

    I have a light switch in the island in my kitchen which powers two chandeliers located above the island. In order to cut the power on/off for this light switch I must cut off two circuit breakers (numbers 25 and 29) located in the breaker box. Also controlled by breakers 25 & 29 is the front...
  9. G

    Curr/Volt profile in circuits with Drop-in T8 LED Replacements vs normal T8 Fluorescent?

    Hi, I'm troubleshooting a 'smart switch' issue which is connected to an existing fluorescent 4' 2-bulb (T8) fixture where I have replaced the fluorescent tubes with LED drop-in LED T8 tubes (no re-wiring necessary, so ballast is still in the circuit). Vendor indicates that the switch may be...
  10. Calebp43

    What size cable do you use for new lighting circuits?

    So im a third year apprentice and should be qualified next year (whoopee). One thing has always made me curious and that is what cable size should we be using to rewire or in a new build for lighting in 2021? OF COURSE this depends on the load and how it's installed etc but in general what size...
  11. M

    Control one light from two circuits

    I have four exterior 110v light fixtures in the front of my house in series on a single switch. On a different circuit, I have six 110v back yard light fixtures in parallel on a single switch. I want to add another light fixture on the side of the house that will turn on if either or both...
  12. J

    Lighting circuits and having multiple legs of of a ceiling rose

    I have two questions regarding lighting circuits. The first in is , is it bad practice to put two lighting circuits on on breaker? The second is similar but can you ‘spur’ of a ceiling rose which is mid run of the circuit as many times as you want considering VD and maximum current draw/Zs...
  13. M

    Can 4 30A circuits run a heater with 2 60A inputs?

    Pictured is the L1/L2 terminal block of a 28kW tankless heater. The heater has 4 30A heating circuits connected to the terminal block, two leads per terminal. The other side of the terminal is supposed to be fed by 2 60A circuits, each powering 2 heater circuits. Is there any concern about...
  14. K

    Wiring Off-grid circuits to a solar generator?

    Hi all. I'm looking for advice on how best (i.e. 1- not a fire hazard, 2- meets code) to connect a solar generator to wiring for an offgrid cabin. Cabin (not yet built) will be 200-500 square feet. Only anticipate needing 3 circuits- 1 for a mini-fridge/freezer, 1 for a few overhead...
  15. E

    Low voltage over several circuits?

    I extended a bedroom in my basement and had to move a couple outlets from the knocked down wall to the new wall. After, I was sanding down the drywall mud and forgot to completely shut the door of the main panel (which is in the corner of the room). Soon after, I went upstairs and noticed the...
  16. N

    When working on circuits do you isolate whole board or just the final circuits using MCBs ?

    When working on circuits do you isolate whole board or just the final circuits using MCBs ? Or is there any instances when the whole board has to be isolated even if you are working on few final circuits? Thanks.
  17. D

    Which of my circuits are RCD protected?

    I'm not a spark, this question may be a bit of a giveaway, but wondering which of the circuits on my board are RCD protected based on this pic? Is it just the circuits which the RCD is immediately to the right of? Thanks NOTE: I don't plan on doing any work near this CU, I'm not qualified...
  18. A

    Band 1 & 2 circuits in the same enclosure

    This question relates to 528.1 of the wiring regs (proximity to electrical services). It states that these bands will be kept separate unless one of 6 different methods are adopted. The two exceptions im most interested in are below: 1) Every cable or conductor is insulated for the highest...
  19. S

    UK Second empty meter cabinet for a consumer unit to feed several garden circuits. Can a standard metal csu be fitt

    I have a customer who has installed a second empty meter cabinet for a consumer unit to feed several garden circuits. Can a standard metal csu be fitted in here, does it have to be in an ip65 enclosure also or can a ip65 plastic csu be used. I get csu has to be non combustible within a dwelling...
    • sidekick
    • Thread
    • cabinet circuits consumer consumer unit garden metal meter second standard unit
    • Replies: 2
    • Forum: UK Electrical Forum
  20. G

    Can 2 separate circuits be used on an emergency light,?

    Can 2 separate circuits be used for an emergency light, one for the switch leg and the other for the constant power for the battery, or does it have to be the same circuit?

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