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  1. P

    Spur and lighting cct off a FCU protected spur?

    I am looking to install power and light into what was a "coal house" that is going to be used to hold a small domestic chest freezer. The room itself is part of the fabric of the house, but is only accessible by an external door. The wiring run will be direct through the kitchen wall into the...
  2. B

    Air conditioning installation - supply options

    Hello, We are having 2 wall mounted split system air conditioners installed. These come supplied with a 13amp plug which will power both the internal and external units. I would like to wire these in for a more permanent and neat installation. Our consumer board only has a single "RCD...
  3. E

    Rcbo On A Busbar Protected By Rcb

    Hi just looking for your opinions on putting an RCBO on as busbar protected by an RCD, the reason i ask is the manufacturer doesnt make a 45A MCB but does make a 45A RCBO. or leave the circuit on a 40A MCB even though the manufacturer of the oven asks for a 45A supply?
  4. R

    Kitchen island sockets

    Hello. I have a new kitchen going in with a island in the middle. A 10mm t&e (protected by a 40A mcb) has been laid under kitchen floor for the hob that's going on it. No other cables can be run to it now. Trouble is I would now like two double sockets on it. Can this be done? I thought...
    • robmw
    • Thread
    • cable circuit island kitchen protected short socket sockets
    • Replies: 7
    • Forum: UK Electrical Forum
  5. D

    EICR code

    I'm doing a EICR on a caravan site. Came across 5 circuits each supplying about 13 16A socket outlets. All are protected by 63 A mcbs and all wired in 6mm twin armoured cable buried underground. The cable rating for the cable is 46A with the ref installed etc. Im undecided if I should code 3...
  6. Z

    Simple question regarding Non RCD protected SWA run from CU

    As the title suggests, I'm running a submain. The space in which I have to work at the supply end is extremely limited though. The CU at the supply where the SWA needs to terminate is mounted on the inside of the external wall in the porch. Ideally, I'd just run the SWA through the wall and up...
    • ZEDEZ
    • Thread
    • cable protected question rcd regarding simple swa through where
    • Replies: 2
    • Forum: UK Electrical Forum
  7. B

    Zs to high on MCCB Protected circuit?

    Hello to the experts of the forum! I am currently checking an installation and the measured r1+r2 of the cable (4c 70mm swa of 550mtrs) is 0.8Ohms using the armourings as the cpc. Ive checked with schneider and the max Zs is 0.38 Ohms (5s disconnection time). This installation is new and i'm...
  8. Hellmooth

    Running new lighting circuit earth

    Hi quick question, got a newly wired lighting circuit that has had the earths chopped, would be easier for me to run a new earth alongside, is there a minimum size of earth if ran in singles and not protected by an outer sheath, got 4mm in my head but not sure where from!
    • Hellmooth
    • Thread
    • cable circuit earth lighting lighting circuit minimum new protected running
    • Replies: 39
    • Forum: UK Electrical Forum
  9. J

    copy of 16th ed- requirments for rcd protection

    has anyone got a link/pdf of the requirements for rcd protection in the 16th ed -more for socket outlets ***sorry if its 25-30 years old- it would be 15th ed right****
  10. N

    Safe isolation of individual RCD protected circuits

    is it impossible on RCD protected circuits ? Reason I ask. I was doing some minor work in my house, spur off ring final. Turned off applicable MCB, checked at the socket with the voltage tester, no voltage. Soon as I started conecting the spur the rcd tripped. I guess this is normal, how do...
  11. S

    Garage Sockets

    Im looking to add 4 new sockets into a garage, there is no live sockets or anything to come off In the garage already so Im looking for something the otherside of the wall to come off of to get my live connection. I have located a socket indoors which already has two wires already going to it...
    • soborski2015
    • Thread
    • already breaker circuit garage protected running socket sockets
    • Replies: 17
    • Forum: DIY Electrical Advice
  12. H

    commercial dsitribution board change leaving existing circuits non rcd protected

    I am changing a commercial distribution board like for like, Can someone confirm im correct? Ive only allowed rcd (rcbo) protection for new circuits or circuits im working on, and noting in my installation cert, that those existing lighting circuits don't comply with amendment 3 regarding rcd...
  13. A

    2.5mm2 ring main protected by 20amp breakers

    So an old colleague of mine stipulates that ring main should be protected by 20 amp breakers. Why you ask? Well he said because a piece of 2.5mm2 can only take circa 26 amps and if the ring main broke at any point it would effectively make it two radials, and it would be protected by a 32 amp...
    • atm84
    • Thread
    • breaker breakers main protected radials ring ring main
    • Replies: 31
    • Forum: UK Electrical Forum
  14. E

    Maximum Zs for distribution circuits protected by 60947-2 MCCB's

    Anyone know where I can view up to date reference documents etc to acquire the Maximum Zs for distribution circuits protected by 60947-2 MCCB's? Regards David
  15. Dave OCD

    Supply for Combi Boiler - RCD required ?

    Allright chaps I have to connect a new Combi this Saturday morning, intending to fit a 3 amp fused switched FCU and take the supply off a handy socket [about 2 feet away and on a RFC not a spur] The consumer unit is an old MEM with cartridge fuses and there's no RCD, [TNCS system with Ze of...
  16. N

    Everything RCD protected?

    Hi all, My understanding is that everything should be RCD protected now, as it is unlikely that all the criteria is met for it to not need RCD protection. I went to my friends house the other day and the consumer unit had a periodic inspection and test carried out by the local council last...
    • Noob2013
    • Thread
    • everything other protected protection rcd
    • Replies: 10
    • Forum: UK Electrical Forum
  17. D

    Armour cable ran to garage on 16a breaker

    Hi Everyone, I have armour cable running from my house to my garage in a new build, it is connected to 2.5 that connects to my consumer unit, can i put a socket before armour cable for my wifes new battery hoover without any adverse effects? its protected by a 16a breaker then runs to garage...
  18. M

    cooker tt no rcd

    hi extended a 32 amp cooker circuit, adding a cooker switch and outlet plate. extended as it is a 7kw range cooker now situated in fireplace. old cooker now not going to be used. problem is its on a 16th edition board and is on tt. the cooker and lighting are non rcd protected. ideal...
    • midgetman
    • Thread
    • cable cooker ideal imageshack no rcd protected rcd
    • Replies: 27
    • Forum: UK Electrical Forum
  19. S

    rcd or no rcd ?

    Does a 16 amp commando socket installed in swa in a warehouse need to be rcd protected ?
  20. sparksburnout

    Zs out of spec on an RCD protected circuit

    Please accept my apologies if this is in the wrong category, and also my ignorance as I feel I should know this but I think the heat has confused me. In the theoretical scenario where you are doing an EICR on an RCD protected circuit, but the Zs for that circuit is actually (just, say) out of...

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