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sizes

  1. 2

    Large cable protective device and enclosures

    Hi, thanks for reading this. Ive been asked to look at a job where the DNO connection (single phase 80A TT) is a long run to the final circuits. Small feeder box has been installed and the volt drop dictates 95mm cables are needed to take to another feederbox where the feeds into the building...
  2. D

    Cable sizes for fan oven and induction hob

    Hi all, looking for some clarification on MCB and cable sizes I need to run for a new kitchen. Cables will run through a combination of uninsulated platerboard ceiling, down the wall behind dot n dab plasterboard and in enclosed plaster where channels are repaired. The online cable size...
  3. B

    Calculate bonding sizes TT

    Hi, searched but still niggling problem need help on... Installation: - 4mm earth to earthing electrode (rod) Ra 42ohm Zdb 33ohm 1361 60A main fuse 16mm tails cant get acceptable result for using adiabatic as disconnection time too high (higher than 5 secs with that Zs reading) no frontline RCD...
  4. B

    Satellite mast aluminium tubing sizes. What will fit into what?

    Hi guys. This will be a straightforward answer for anyone who works with aluminium tubing on a regular basis. I don't I'm afraid hence my asking here. I know professionals would want to consider the time aspect but that isn't a concern for myself. And price is not critical but "silly price"...
  5. R

    wire sizes - what is standard

    hi all. I am new here and am doing some work on my house. I have a question regarding wire sizes; As far as I was aware the sizes are 1.5, 2.5 then 6.0 etc (I am assuming this is the area of copper) however I have just come across 4mm. dia. in my house. Is this an old standard no longer used ?
  6. J

    Help choosing wire sizes

    Hello! I have a 320 amp service (400 amps) in a main panel. I want to create a subpanel 1,000 feet away with a 200 amp service there. Can someone tell me what size wires to run, if aluminum or copper, and how many wires? For, say a 3% voltage drop? How would you do it? Thank you!
  7. C

    Wiring Off-road lights, need help on the wire sizes needed, going a little crazy here

    So im not terrible as electricasl but also not the greatest. I know how to wire up relays and fuses and all that stuff but the wiring sizes for these lights has me in a pickle. The Vehicle is a 1989 Jeep Grand Wagoneer and ive already upgraded its 78A alternator to 150A, with 100A at idle so...
  8. S

    For Sale Tri Rated Cable (Vaious Sizes & Colours)

    Hi all, I've got a load of old stock on tri-rated cable to shift: 0.5mm £7 per drum 300m x 0.5mm White 500m x 0.5mm Violet 100m x 0.5mm Yellow 0.75mm £9 per drum 100m x 0.75mm Red 1mm £10 per drum 200m x 1mm White 1.5mm £14 per drum 1000m x 1.5mm Violet 400m x 1.5mm White 200m x 1.5mm...
  9. S

    Busbar chamber cable sizes

    I’ve been asked to install a dedicated 32amp 3 phase supply for a passenger lift and need to tap off a 200 amp rated busbar chamber. The incoming supply to busbar is 200amp with 120mm SWA. Can I tap off this busbar with 10mm tails to a new 32amp switch fused isolator mounted to the side of the...
  10. L

    Immersion wiring and amp sizes

    set up for immersion goes like this for me.... Option 1) 16amp breaker > 2.5mm t&e to 20amp DP isolator > flex from this to immersion. But how is this set up..... Option 2). 16amp breaker > 2.5mm t&e to 13amp fcu > flex from this to immersion Are both fine?
  11. C

    Tail sizes from PV sub-board

    Evening all, just a quick question from a non electrician before you shout! Our systems are all installed using a sub DBB (rather than into the existing board). Normally we would fit using 25mm tails however a contract we are currently on say that 10mm tails can be used............any views?
  12. cliffed

    Conduit cabling sizes

    Helping out a fellow spark, 2nd fixing,nice school extension. Have the regs changed,concerning cpc sizes with cables. It’s all been specificed by consultant,the circuits are radials,which is a good thing. Bit confused about the sizing of the cpc,obviously single cabling,4.0mm live & neutral,the...
  13. M

    Web site / suppliers list of downlight hole cutout sizes

    Is there any resource anywhere or any point of reference where you can search for a downligt by hole cut-out size? Looking for non integrated gu10 fittings for existing 82mm holes. It takes forever going into the spec of each downlight
  14. C

    Electrical Bonding Sizes in Factory

    Hello All, We look after an old mill/factory and ive just been given the test remedials list another company did. A bit part of it is bonding to steelworks and big gas pipework. How do i determine size needed? Is there a formula/table to work off?
  15. W

    screws sizes using ...for

    sorry, but what is the common sized screws used for red wall plugs. i know by sight but not when looking in the catalogue. thanks.
  16. K

    Wire sizes and volts. Pls help.

    Hi guys im new here. Need some help and advices i will be thankful. I want to change the ceilng ligh okay now i have bought 3 pieces the problem is these ceiling have cheap thin copper wire its like car 12v wires or thinner i think its 0.5mm while the ceiling wire is thick and old i think its...
  17. G

    VIR Cables Current Carrying Capactiy

    Anyone know of any information out their on the current caring capacity of old VIR cables, looks like they are between 16mm-25mm, so any info on the older imperial sizes would be useful Thanks graham
  18. GMES

    SWA sizes

    GMES submitted a new resource: SWA sizes - CABLE SIZES Read more about this resource...
  19. H

    different sizes and how to record

    If testing a property which has a ring with 2.5mm/1mm t&e (old cable) and 2.5mm single core cables in conduit (addition), how would you record this on the EICR? As for the 1mm earth on the ring circuit, would this be a code 3?
  20. P

    Additional consumer unit in domestic property breaker sizes?

    I have a few questions about a couple of breaker sizes needed due to current draw and diversity. In place already is as usual; A main service fuse (100A) 25mm P&N tails to meter 25mm P&N tails from meter to CU 12 way CU split load What has been done is a garage conversion to kitchen...
    • P-Courty
    • Thread
    • additional breaker consumer consumer unit domestic property sizes unit
    • Replies: 45
    • Forum: Domestic Electrician Forum

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