sizes | Page 2

sizes

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  1. 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...
  2. S

    Meter cable sizes

    What size double insulated meter tails & main earth cable should we use for a new 200 amp 3 phase supply
  3. A

    Nifty tool for working out awkward angle sizes

    Hey guys, I'm currently working in a stupid building where everything is at 7 degrees, not a straight span for more than 5m. we have had to cut all our trunking/tray/lighting trunking to match the curve of the building. The annoying thing was figuring out how much to take out to get the 7...
  4. T

    Wire sizes when adding RCD to consumer unit

    Hi, I am splitting the consumer unit to add 2off 63A RCD's. What is the L+N cable size from the main 100A isolator to each RCD? Tony
  5. S

    minimum cpc sizes

    Just running thro some design calcs for minimum cpc size and im getting some unrealistic readings. Example 1.5mm c.s.a live and 4.mm cpc on a lighting circuit?? circuit is Zdb = 0.083 Circuit 1L1 Assuming we can use 1.5mm cpc R1 + R2 = (12.10 + 12.10) x 1.2 x 3.57 / 1000 = 0.10ohms...
  6. B

    Cable sizes

    Hi all I was just wondering if anyone know s of a product that allows me to measure small cable sizes approx 50mm to 0.75mm I already own a micrometer and I know I could fill up my toolkit with loads of cuttings of cable.but to be honest it's not not really a viable option the reason I am asking...
  7. Marvo

    Steel conduit wall thickness

    I'm hoping a few of the older members might remember this. I need to know what the standard wall thickness used to be for the very old type threaded steel conduit (20 and 25mm equivalents). I'm guessing the diameter and wall thickness was in imperial sizes so I also need to know what the...
  8. P

    3 phase cable calc and fuse sizes for motors

    Hi am currently employed as testing and inspection on a industrial site just wondered if you could give me some advise What it is I got a 110 kw motor 180 amp 100 m run full load now I got a 75 mm cable supplying it . I have checked table 4d4a in the regs as it is 3 core armoured . Ref method E...
  9. P

    3 phase motor calcs cable sizes etc

    Hi am currently employed as testing and inspection on a industrial site just wondered if you could give me some advise What it is I got a 110 kw motor 180 amp 100 m run full load now I got a 75 mm cable supplying it . I have checked table 4d4a in the regs as it is 3 core armoured . Ref method E...
  10. P

    3 phase motor calcs and fuse sizes

    Hi am currently employed as testing and inspection on a industrial site just wondered if you could give me some advise What it is I got a 110 kw motor 180 amp 100 m run full load now I got a 75 mm cable supplying it . I have checked table 4d4a in the regs as it is 3 core armoured . Ref method E...
  11. L

    What sizes of heat shrink?

    Hi, Could someone please advise me on what size (diameter?) of heat shrink is best to go over the red, blue and yellow insulated crimps for use when extending 1, 1.5, 2.5 & 6mm T&E? Also what size heatshrink would you put over the lot to cover the 3 staggered crimps, inner cables and...
  12. B

    Equivelent CPC sizes for metal trunking

    Hi Im looking for a table that gived the equivelent cpc that a metal trunking would provide. many thanks,
  13. D

    For sale tools and materials huddersfield can ship

    I have given up working for myself and am working for a contractors now, I am having a clear out, sensible offers please All can be collected from Huddersfield but I can ship as my company have a UPS account, I cant split it dont have the time all tools are less than 2 years old and in very good...
  14. billyblade

    Diamond core drills

    Hi everyone. I represent a company who manufacture and distribute drilling and trade solutions which are particularly popular with electricians. I'll not name them so as not to advertise on here.:smiley2: We have a dry diamond core drill kit in our portfolio which sells very well but i feel that...
  15. B

    Panels Sizes.....

    Morning guys..... Looking for some help..... Quoting for a job on a garage roof. Couple looking for a 4kpw system. However our usual panels are just slightly too wide....1082 by 1575. We need to find a panel no bigger than 980 by 1575. Any ideas... Cheers
  16. P

    Cpc cable sizes on metal clad garage sockets

    I am installing some metal clad surface mounted sockets in a garage for the first time. Do I need to earth the box to the earth terminal with a separate cable and also would i use the same CPC size as the circuit cable. Thanks
  17. H

    Breakers & Cable Sizes

    Evening all, Currently studying Electrical, quick question. Is there a page in the onsite guide which tells you the minimum size per breakers ?? Thanks in advance
  18. L

    Tail sizes - max demand suggests too small

    Fellas Im just writing up the 5 flats I inspected last week, all the service heads/fuses are new to within 3 years, the cut out fuses are all 100A and tails all 16mm, I know discretion is sometimes needed in this area, on some flats the Max demand reaches 90-100A whilst in others 65-75A, would...
  19. Top Cat

    Little table for CPC sizes in 2 & 3 conductor cables

    Do not know if this has been done before but i find it useful as am always forgetting. 1.0mm cable has 1.0mm CPC 1.5mm cable has 1.0mm CPC 2.5mm cable has 1.5mm CPC 4.0mm cable has 1.5mm CPC 6.0mm cable has 2.5mm CPC 10.0mm cable has 4.0mm CPC 16.0mm cable has 6.0mm CPC
  20. M

    Cpc sizes

    Is the main reason for having proportional sized cpcs for cables to ensure incase of fault they dont over heat and burn. Say using a 1mm earth for a 25mm sub main in a hyperthetical fault would overheat very quickly? Also "hyperthetically" if you were to use the earth in the neutral terminal...

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