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cable size

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  1. P

    Three phase cable size

    Can anyone tl ell me how to work out the size of an existing supply cable. It is a three phase supply into 200A fuses. The cable is buried in concrete ground and so I cannot see any markings on it. I've had a look at the cables upstream of the fuses and they look to be at least twice as larg as...
  2. J

    SWA Cable Size

    Hi guys, I'm looking to run a single phase 60 amp supply 250 meters away with 3 core SWA and run a separate earth conductor. Both to be in ducting underground what size cable should I use ?
  3. kkkkk

    2 Consumer Units run from one 100A DNO fuse - cable size?

    Hello all !! Situation - 100A DNO fuse in house no 1, running CU in house no 1 - home owner wishes CU in house no 2 to be run from the same DNO fuse, the CU in house no 2 has 3 x 6A lighting circuits and 2 x 32A ring circuits, and they want a shower to be installed, but haven't specified the...
  4. infinity

    cable size selection

    I'm just looking at a cable for a large install 50KW. With a 120M run, When doing the calcs in using 50mm swa underground with IB of 80A And getting a volt drop of 8.3V which is above the 1% allowed, What do you do in these circumstances? Surely I can't install a 240mm cable that's ridiculous!
  5. A

    Multi CU's off 3 phase DB cable size

    Hi I'm new to the electrical trade. Re-wired a few domestic property's and done odd few fault finding jobs. Today I came across a job, converting a 6 bed house into multiple flats (passed it on to a more qualified/experienced electrician). Just out of curiosity now, If I was to supply single...
  6. C

    Cable size and load calculations

    Hi all, I need some help with working out the correct cable size for some work I'm doing at the moment. I am currently working on testing Mobile units carrying out PIR and remedial works. I have already worked out my answer which I will keep to myself as not to invite negative comments, the...
  7. M

    cable size

    I need to install a 100 amp ccu, 230 metres away from the temporary supply for a building site, could anyone tell me the size of the swa that I should use. Single phase
  8. leep82

    induction hob cable size

    Ive been asked to install a new circuit for an induction hob. The customer doesnt have the appliance as of yet but after a little bit of searching i managed to find the technical info i was after. The total load is stated as 3.68kw, but it also states that there are 2 x burners rated at 1.4kw...
  9. A

    dc cable size

    hi all hope some one can help I need to work out what size dc cable to use for a 866vdc per sting over a 25/50 and 100meters have tried using the online caluactor but each panels is 65volts each also the company as also asked for a cable bend ratio have tried to find the dc voltdrop formula but...
  10. F

    Cable size

    Hi Hou need to run a supply to a piece of equipment which is rated at 63A SP, the run will mainly be underground in a duct and a 2c swa using the sheath as cpc. My cable calculator is telling me I need to use a 50mm swa as the length of run is 100m but the equipment terminals won't take 50mm so...
  11. J

    cable size and max load

    What is the max load a 6mm cable can take think the run is about 16 m clipped surface s w a cable 5 core
  12. E

    9kw Shower and cable size

    Im well aware that I'm being blind and not finding whats in front of me in the BGB but anyway! Was at a property today, haven't finished the test there yet but they have a 9kw shower being fed with 6mm. Run of 2-3 metres into the isolator in mt4 and then chased another 2 metres behind tiles to...
  13. D

    cable size calculations

    Can somebody please help me, what is the formula for calculating cable size, just a query not for anything in particular thankyou.
  14. T

    cable size help needed please

    Hi everyone. Im new here so sorry if this is in the wrong section. I have just set up on my own and been asked by a customer to install some socket outlets, lighting and electric heaters in a stable. Im goin to view the job on tuesday so ill know more about it then. But when speaking to the guy...
  15. B

    Cable size for these

    Got an induction hob (7.2kw) and an oven (3.68kw) to install in a kitchen You guys think 1 x 10mm T&E would be ok? Run is approx 10M under floor
  16. D

    Large Cable Size Help

    I have to install a cable from a new supply meter to an existing DB (no the DB cant be moved or the supply installed closer) The supply is 400V 3ph 400A The cable run is 120m long 30m of which is burried the rest of will be clipped direct. The design current is 280A but may go up to 380-400A in...
  17. S

    External Power cable size

    I have a Wiseman wireless controller installed that works 4 Water Features and 1 set of external light posts. The original supply was via 2.5mm armoured cable. We have had problems in the last few months of the power tripping. It bypasses the RCD it comes into and takes out the main fuse. I...
  18. M

    Cable size for single phase motor control panel

    Hi all, Your help would be appreciated. We are mainly domestic sparx so I havn't much experience with cable sizing for motors. On site, we need to supply a motor control panel which operates the sewage pump. There are in fact two pumps but I think they switch between periodically to prolong...
  19. C

    11kw shower cable size?

    For 11kw shower what cable size is required for 15m run?
  20. B

    min cable size for garage connect

    Hi guys I have a garage which has 2 double sockets, 1 spur for a electric door and 2 single 5 ft fluorescent lights what's would be the ideal cable size for a supply. As its currently powered by a 1.5 T&E radial run outside from the main board unprotected under decking and up the wall......not...

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