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  1. timo1

    Bit of help with a TT installation please...

    Hi, i'd appreciate a bit of help with this one if poss. Went to look at a job on a TT installation, property was a single story bungalow and has since been developed with another floor. As usual everything has been immaculately decorated, floors laid etc..and no thought given to the electrical...
  2. R

    Small industrial quote!

    Hi guys, gotta price a supply to a water heater and run a supply to 3 double sockets in a small room in a unit. It's a 3 phase board, no RCD protection. The DB is just outside the room in question.All cabling is gonna be surface. Can I put in PVC trunking and do both circuits have to be RCD...
  3. S

    Kitchen Appliance circuit

    Designing a kitchen appliance circuit, i plan to feed a bank of grid switches with a 6mm T&E fed via a 32A MCB, then each switch will have a 2.5mm cable to a fcu supplying an under counter appliance. My main question is, is it ok to change down to 2.5mm and then feeding the FCU? As the cable...
  4. G

    RCD Plugs

    Can anyone tell me a PRACTICAL reason for installing RCD plugs to class 2 site equipment, and how do i PAT test the actual appliance without removing the RCD plug?
  5. A

    RCD protection for PV?

    Does a PV system have to be RCD protected? I did a number of PV installations with a very experianced electrician who said that the PV system had to be RCD protected, but I'm not sure. The AC cable will not be burried in a wall and it's not going into a bathroom, or outside, or suppling a...
  6. richy3333

    Lights spurred off a FRC and protected by a 32A MCB

    Working on an installation today. Noticed a circuit which is not connected to my work (different circuit). 1.5mm T&E (Ref method A) for upstairs lights fed off (I presume a hidden JB as nothing is visible) a FRC and protected by a 32A MCB. It's not been fused down, at least no FCU visible. No...
  7. C

    RCD & Lighting cct

    do lighting circuits need to be protected by RCD if the cable to the switch is buried in the wall?
  8. M

    rcd or not to rcd, that is the question

    Just a very quick one, New Cooker Circuit, rcd or not, Alteration to Cooker Circuit, rcd or not Please quote regulation. Thanks
  9. E

    changing cooker switch

    Hi guys. Called in to change a cooker switch for a customer this aft, its just old and tired. When inside it, i found a spur off the terminals, which i traced to a single SO (no SO on cooker switch). The SO is for the microwave. Customer has no probs with fuse blowing. Its on 6mm, with a 30A...
  10. R

    RCBO Or No RCBO that is the question

    Hi Guys, Looked at a job today. Basement flat. CU Has a Circuit feeding a small CU in the upstairs shop cable is a 16mm T&E on a 40 amp mcb. Rest of circuits on RCBO's. Question is Should this cable feeding shop be RCD protected? Does this become commercial? The Board in the shop is RCD...
  11. A

    Illuminated mirror with shaver socket

    Hi Guys Been asked to price install of illuminated mirror with shaver socket in bathroom, would normally wire into lighting circuit with RCD protection, however consumer unit only part rcd protected, you guessed no rcd on any lighting circuits, but upstairs ring circuit RCD protected, with...
  12. K

    RCD protected?

    Hi guys, I need a little advice - have attached photo... I need to upgrade this fuseboard to Current regulations - customer cannot afford to replace CU with 17th edition split load board. can I move the RCCB to next to the main switch to protect all the circuits? Or can I add another RCCB...
  13. G

    Light Switch Inside Bathroom

    Am I correct in saying that a light switch (or even a socket for that matter) can now be installed inside the bathroom as long as the circuit is protected by an RCD and also it is outside Zone 1? Thanks for feedback
  14. ringer

    Surge protected extension leads trip rcds

    Spent hours today tracing a NE fault (IR=0.29Mohms) on ring main. Unplugged everything I could and then split the ring down. Eventually narrowed it down to three double sockets which seem to be on a spur. Different colours at start and end of spur so no doubt a jb under the floor somewhere...
  15. edexlab

    Adding non Rcd protected circuit to split consumer unit

    I've a possible job coming up where I'd need to add a circuit to a domestic property which has several spare ways both protected by 30mA rcd's the circuit I will be installing can't go on a 30mA rcd and will be surface ,usually in conduit/trunking and so I'll get a split load kit for it and add...
  16. W

    crabtree starbreaker

    hi,im after a little advice.a 5+5 consumer unit(star breaker),5 protected and 5 unprotected.the board has 3 un protected circuits ie 2 spare ways and 5 rcd protected circuits no spare ways.my problem is i need to add a new protected circuit.is it possible to move the rcd unit to allow an extra...
  17. M

    Rcd tripping in offices

    Hi there. I have been investigating a job where I am struggling to find any thing wrong with the wiring/installation. It is a dual CGD split board with the non rcd circuits on top and the rcd protected circuits below. The constant problem is that when the lights are switched on at the switch...
  18. I

    AVO MEGGER Lt5 Maual?

    Hi every one i am looking for info ie. manual for a Megger loop tester. I have bought it and i don't expect it to do too much but would like to find out a bit more on what it can and can not be used on? I am under the impression that this meter will not work when a circuit is RCD protected, i...
  19. E

    ZS on final sub circuit

    Lads Have measured R1 + R2 and get a total of .45 ohms, when I test the ring with my tester I get 2.1ohms, the unit was calibrated last week, any ideas?
  20. H

    RCD Protection or not????

    Hi, got a 3 phase transformer on a construction site (office refurb) fed by 6mm swa, form an old 3 phase d/b. Should the swa to the transformer be rcd protected or not, the regs are not really clear on this? The cable is tied up and taped with caution markings. Thanks Craig

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