consumer unit

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  1. H

    Old black box near consumer unit

    Hi, My electrics keep tripping.. this black box in the picture seems to be the culprit. Slight touch of it and it trips. The electrician suggested removing this and connecting two main cables from main switch to the consumer unit with connectors. He said this black box is very old and not...
  2. K

    Recessed consumer unit

    Hi guys A customer wants a new surface mounted consumer unit installed. Their current unit is recessed. The cables are not long enough to come out into rear of new board. Any suggestions would be great. 👍
  3. M

    Advice on safety of new Consumer Unit Install

    Hi all, new to posting but been reading for years. I inherited a house from my grandmother who passed in 2021, I intend to renovate and rent out, step by step, job by job as money allows. Getting the property ready to rent has uncovered a fair few jobs needed to bring it out of the 1970's I...
  4. K

    UK Any suggestions for feed to consumer unit?

    Hi guys. Been to look at a job today to replace old wylex board. Feed to unit seen in pictures fed from garage. It 16mm twin and earth. I’m unable to access cables entering board so would struggle to replace with swa.
  5. V

    Protecting a 2nd consumer unit

    Done this loads of times before, but this situation is quite unique so bare with me. I've been asked to cable up an out building at a country park which is about 30m from another out building which has mains supply already installed from a main building some distance away via a 10mm SWA buried...
  6. K

    Relocation of consumer unit

    Hi guys I’ve been requested to replace a consumer unit but will need relocating lower within a tight cupboard. I will be installing a box with din rail and terminals etc and running new cables to new unit. Problem I have is that the meter and isolator is mounted on a board. The only way to...
  7. S

    New circuit in plastic consumer unit. Yes or no?

    I work with someone who really isn't happy installing new circuits into plastic consumer units. Sometimes he refuses to do it if the board in question isn't in a great state or if the existing wiring is spaghetti junction. Obviously the regs state that it's fine to add if the board conforms to...
  8. S

    SWA Cable for run between switched fuse isolator and consumer unit

    Hi all, I am looking to replace an existing CU (ground floor) and put it in a new position (first floor). The existing CU is on the inside of a wall to the meter cabinet (which is on the other - external - side of the wall). The existing cabling between these two devices is not SWA/armoured...
  9. J

    New Consumer Unit Fireproof Stuffing Glands

    I recently had an electrician install a new consumer unit in my cellar. A second electrician, who is subcontracted by my bathroom fitter to carry out electrical work in the bathroom, has said that the cable entry to the fuseboard should be sealed with either fire resistant stuffing glands or...
  10. J

    joining two feeds into one consumer unit.

    I have two 40A swa cables from my main house consumer unit. This consumer unit serves the whole house and the two swa cables serve two consumer units in an extension. One is upstairs and has very little demand and one is downstairs with a higher demand. My question is: Can I add the upstairs swa...
  11. D

    Main Earthing in Consumer Unit

    I am due to carry out an electrical job in a third floor flat. Incoming supply is TN-S. Cannot locate a main earthing conductor inside the CU on the earth bar, just the individual circuits CPCs. There are two earths clamped to the bottom of the metal CU, one disappearing down some metal...
  12. V

    New consumer unit - Necessary to replace existing grey tails ?

    Hi, I'm getting conflicting stories about this, I wonder if someone could put this to bed once and for all. I'm replacing a consumer unit in the next few days, and it currently has the common grey tails going from the isolator to the existing consumer unit, one is ,marked "L" then other marked...
  13. N

    Upgrading an existing consumer unit with RCBOs

    hi there I have a plastic consumer unit that was installed about 8 years ago - inside is the standard array with RCD. Im planning to switch to RCBOs (and cost wise I actually bought a fully populated consumer unit as it works out a lot cheaper ) my question is to comply and get through a...
  14. eleanor jones

    Consumer unit left main switch ?

    Which consumer units have left main switch?
  15. P

    What test to carry out before consumer unit change?

    What test should I carry out before changing a consumer unit to ensure that it is eligible for one? I’m guessing R1 + R2 to make sure it has cpc at circuits. Say for lighting do I check every single light fitting or...? IR test I’m assuming of course so there are no trips. I’m not a testing...
  16. P

    Consumer unit top knockout

    Does the consumer units top knockouts need to have stuffing glands installed even if a 50x50 trunking will cover the holes? Or is it sufficient to use a grommet or grommet strip if a rectangular hole is cut? The stuffing gland will maintain the IP rating but that will be maintained by the...
  17. R

    Smart Meters that can be installed at the Consumer Unit

    Smart Meters that can be installed at the Consumer Unit. For situations where a tenant wants the facility but the landlord doesn't want a a smart meter on their premises. Does anyone know of such a device? I'm thinking of something that can be installed outside of the CU monitoring the line...
  18. E

    Dated Consumer unit whats the fuse for

    I saw this dated Wylex CU the other day and not sure what this separate fuseway was for; does anyone know I've never see one like this before !
  19. N

    new consumer unit certification

    What certification do I need when replacing a consumer unit ? Here are the details. I am semi retired (electrician) and work for a company as the maintenance man which rents out flats as serviced accommodation, we are currently in the process of having the flats (25 of them) tested (fixed...
  20. BenSparky8

    New Garage Consumer Unit

    Hi guys, Just a quick one. I’m installing a garage board in, planning on a 6mm SWA supply coming from a 32a MCB. The DB I’m feeding from is a split load board. My question is, what is the best way to move over the current MCBs to allow me to put in a MCB that’s not on any of the RCDs (as I...

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