size

  1. A

    Commando Socket Cable Size

    Hi I Don't Touch Industrial / Commercial Electrics As I've Never Worked On The Stuff! … I Have Asked A Electrician That Does Work In This Sector (Of Who I've Never Used Before) To Wire In 2x Commando Sockets For A Customer I Have... My Question Is Are The Cable Sizes / Breakers Adequate For...
  2. L

    Meanwell 12v 350w enclosed unit/What size flex

    Hi Guys & Girls, i have an enclosed Meanwell LRS-350 12V switching power supply and to get it up and running ,3 core flex has to be connected direct to the unit{bare wire} and the other end a 3 pin uk mains plug. So my question is as follows what size 3 core flex should i use to connect it all...
  3. B

    Oil Boiler cable size

    hi all, just after a bit of advice have had a oil boiler fitted in a outhouse the company also wired it up. They took a 3amp fused spur off the the immersion spur ran 1.5mm 4 core 14 meters to outside junction box 3 meters of armored cable to another junction box then 5 meters in the out house...
  4. L

    Size of this cable. Main cutout

    Is there a certain cable size which enters into the house into the main cut out? Or what are the most common? Can you tell me the size of the cable in photo. Thanks
  5. Adam_92

    1.5mm2 fp200 cpc size?

    probably a daft question to most of you, but in an 1.5mm fp200 is the cpc the same size or is it 1mm because my supervisor has told me it is the same as t&e but I’m pretty sure it is the same size :/ I’m trying to find it in the on-site guide.. Thanks Adam.
  6. D

    confirmation of earthing conductor size

    Hi Guys just a quick question but what the hell do I put in confirmation of earthing conductor size when the earth is the swa
  7. C

    Calculating the correct cpc size

    Good evening all, Some help with following would be much appreciated. A 20 Amp rcbo in a CU supplies an adaptable box on the outside wall of a house via 2.5mm2 T & E. From the adapatable box a short lenght of SWA supplies a couple of sockets and light in a shed. My question is does the 1.5mm2...
  8. G

    What size Fuses do I require?

    Hi, I have a three phase switch fuse supplying a 16A socket. In the specification provided it states the following: Design Current - 16A Main Protective Device 20A The circuit is fed from a C20 MCCB at the distribution board. What size of fuses should I be putting in the switch fuse? 16A...
  9. A

    Calculating Cable Size for Ring Circuit

    Hi All, I'm needing to calculate the cable size for a long ring main. Cable type will be SWA/LSF. The ring is feeding 5no Twin Sockets, on a 32A Type B RCBO, kicker is the length out and back is 300m. Using cable calculation tools can i half the length, 150m, half the current, 16A and allow 20%...
  10. R

    Size of inverter to run freezer ?

    I have a 240v freezer that is rated at 75w I want to run from my 12 v battery bank ( solar ) can anyone tell me what size watts inverter I will need to handle the surge on starting it up, and running it ? And do basic no frills fridge compressors require any particular sine wave to run ?
  11. P

    SWA size. 6mm ok or 10mm needed?

    Hi guys, any advice on what size of SWA should be burried for garage? Will be aprrox 15m long. Garage will have 6A lighting circuit 20A socket circuit and 32A power socket. Idealy 2core SWA as only one phase needed. IS 6mm ok or 10mm needed? THX.
  12. Les Macaulay

    Unusual cable size entered in a PIR

    While looking over a PIR for a domestic flat, the approved electrician has entered for the Cooker circuit a cable size of 10sqmm but has scored thro this and entered 8sqmm. For the shower circuit he has entered a cable size of 8sqmm (no score out). So he must have intended a size of 8sqmm, but...
  13. C

    protective bonding conductor size

    Hi guys, I've questioned something at my workplace and after receiving my answer I'm not overly convinced and would like some other experienced gods to chime in :) On a new install in an existing property today I went to bond the Water and noticed it was already done, clearly many moons ago...
  14. C

    info of cable size i found out

    https://www.dungannonelectrical.co.uk/dun1-shop/pdf/cable/SWA.pdf the above link is for the manufacturer SWA cable installed on a PME exported into a second building using a 50mm twin SWA where there is main bonding to water pipes in place at 10mm. the cable is 50mm 6943X 50 which is 74mm...
  15. C

    Swa sheath size too small

    an outbuilding is supplied by a 50mm twin SWA cable from a PME supply The assessor has told me to convert to a TT as the steel csa is too small, is there a way I can prove that surely a 50mm twin swa sheath is suitable to be a 16mm earth?
  16. M

    Wow the cost will be crazy

    If they think these will take off i recon they are wrong. Retro fitting them will always have problems as the wiring cannot be guarenteed. Fair enough in industrial but not domestic. At 211 for 1 unit. I seen a picture today of a cu with main switch and 8 of these and a spare 2 way space. Didn't...
  17. C

    Determining the size of multi-core armoured cable to use

    I would like to have insights from fellow Forum members on how to size multi-core ( 4 core PVC/SWA/PVC Armoured Cable) for buildings. For a example,what size of armoured cable can withstand 100Amps ( 3 Phase supply) . The building is 15m from the nearest electric pole where the armoured cable...
  18. Y

    Choosing a power supply, switch fuse size

    Hi all, I'm new here. I have qualified back in 1990 and worked only a few years in the trade. Now I'm back and I find myself a bit "rusty" and in need of a bit of help... I have to wire a complex of coldstores and I have to make a fuse boards for a part of them. I have 6no 10 amp MCBs, 2no 20...
  19. captaincaveman

    Apartment block main earth size

    Hi chaps, Could any of you help me out with this one please as I don't usually do apartment blocks and haven't come across this scenario before. Large apartment block built 2004. Looks like the tails enter the consumer unit via Armoured cabling with the armour being used as the main earth &...
  20. robd

    Minimum bonding size TNC-S

    Afternoon all, Just trying to clear something up, going through regs book at present. Basically have got a TNC-S/PME installation, 16mm tails, 60/80a main fuse (think it is 60A), 6mm bonding to water and 6mm coming from service head to block then into CU as main earth. Am I right that being...
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