size

size

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  1. N

    Incoming size cable ??

    Hi everyone, On a job at the moment and trying to Work out cable size needed for property supply. Lots going on and struggle to work out potential loads of new build not built yet. Loads 2 x ring main around 15 sockets Lighting circuits consisting of around 60 spotlights and outside...
  2. the pict

    What size crimps

    RCBO fly neutral lead what should I be using and what supplier has them Pict
  3. S

    RV Park branch circuit feeder size

    I am working on a RV Park and I have a question. I plan on installing 4/0 quadraplex AL URD cable to 10 pedestals on a 200 amp circuit and downsizing the wire to 2/0 Quadraplex AL URD cable for the last 4 pedestals. I have calculated voltage drop and everything is below 4%. Table 310.16 says...
  4. gobananas

    aircon cable size

    hi....im running cable for a split type 1.5 hp aircon....i have a roll of english 2.5 twin & earth, is this ok for the job? im running it to the fusebox into 16A breaker.....the run is about 5 meters.....
  5. Artimuskillz

    Subpanel feeder breaker size?

    This is a solar tie in generating 22 amps max current, hence the 25a/2p breaker on the subpanel but is there any reason the breaker feeding the subpanel has to be an 80a/2p? Can it be a 50a/2p? Attachments IMG_0010.jpeg 514.6 KB · Views: 2
  6. D

    Supply Cable Size

    Client currently has a DB in his outhouse. It feeds a pool pump and an air source heat pump. It is currently being supplied using a 4mm T&E cable. He wants the DB moved to his garage. It will still supply the two pumps but also a socket circuit in the garage. Having done my cable calcs, 4mm will...
  7. J

    Calculate the appropriate size of the protective conductor exam question

    fault = 400 A Operating time of protective conductor = 0.15 s Constant k, for the material of the conductor = 134 a 1.5mm b 2.5mm c 4.0mm d 6.0mm Just want to make sure I've got this right,
  8. K

    Conduit size for 200 foot run to sub panel

    I am adding a 60 AMP subpanel for a detached garage/workshop with a 200 foot underground conduit run from the main panel to the sub panel. Planning to use schedule 40 PVC. I have consulted with a local electrical inspector and determined that I should use 2 2 2 4 Aluminum THHN/THWN. However he...
  9. finhudson16

    Seemingly under-rater MCB for wire size

    Hi All, I'm looking at installing an induction hob in my kitchen (upgrade from gas) and I gather that it can be added to the cooker circuit if there's enough capacity. In the fuse box and at the cooker end, the cooker circuit is wired in with 6sqmm cable, but only has a 16A MCB which I gather...
  10. H

    amp/ wire size noob ?

    when wiring a 240v 50 amp breaker, for example, does each hot wire have to be rated for 50 amps or 25 amps per wire? 100 amp breaker, 50 amps per wire or 100 per wire. I think I know the answer but not sure. thx.
  11. O

    Does SPD MCB size matter?

    Does this matter? I've fitted a Fusebox consumer unit and I didn't have enough 32A MCB's but too many 6A's. The SPD is fed from a 32A one, what's the deal with swapping them around. They are voltage operated not current operated so should be fine right?
  12. newfutile

    Cable reel size twin and earth

    Does anyone know the size (diameter) of a reel of 2.5 twin and cpc cable ? i want to put a pole in the van but I don’t have any reels with me here.
  13. S

    Service cut out 80 meters away from the installation. Is it OK and Cable Size

    Hi All, I have a client who is developing a plot of land for a single house. Currently, their 100 amp service cut-out is in a cubicle fed by overhead cable, however, this is in the way of the build. Rather than having the cubicle moved before the build and then again once the build is...
  14. T

    size of earth on 16mm mains tails

    Hi I have a domestic installation to rewire and the main incoming fuse is 80 amp so i am using 16mm double insulated tails, is the main earth size with this 16mm or 10mm ? Thanks
  15. D

    How to calculate an MCB size

    I am doing a campervan conversion and have a 16A/250V shore power connection coming into a consumer unit which has two breakers - one for the AC input into a Victron Multiplus inverter and the other to go to a plug socket for non inverter loads. I would like to know how to size the MCB for the...
  16. P

    SPD Conductor Size Question

    Hello, I have a Leviton 51120-1 SPD connected to a residential (120/240V) 200A breaker/service main panel – The 51120 is fed from (2qty) – 20A breakers in the service panel – All wires connected to the 51120 (L1&L2 hot, neut,& ground) are 12 AWG stranded conductors – The install instructions...
  17. Mr305worldwide

    How to find right size carbon brush for electric motor?

    Hi all. Im looking to replace the carbon brushes on the ABS electric motor in my car that no longer works correctly. Thing is, I don't know how to find the right size and I don't want to remove the motor from the car unless I have the part on hand. I'm looking on Amazon but it seems that there...
  18. P

    breaker size for electrical panel in a detached garage

    I want to verify if the breaker size is correct for the service going into my detached garage. I have 6 AWG cable going from my main panel in my house to a detached garage. The cable length is close to 100 feet from the main panel to the sub panel in the garage and a 60 amp 240V breaker from the...
  19. D

    Cable size for 9kW shower

    Hi, Same project as detailed in my other post (I want to run shower cables to the CU whilst the kitchen ceiling is disturbed). I'm going to install a 9kW shower, cable length will be 12m max from CU to shower switch. Cables will run in the cavity between between floors (between floor joists)...
  20. Z

    Main earth size on TN-S

    Hi guys. I was on EICR yesterday, where i found that the main earthing conductor is with very small csa- no more than 2.5cm2. Also they run the wire directly behind the CU, where it is twisted with 10mm2 and continues to the MET inside the board. Ze at the board is 0.28 ohms and seems to be ok...

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