current carrying capacity | Page 2

current carrying capacity

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  1. G

    a ltttle help please current carrying capacity DC cables commercial 6-800V DC

    righto chaps and chappesses, I'm currently devising a spreadsheet to calculate the cable size needed for various sizes of cable for use on the DC circuits of commercial jobs where the DC voltage cable be 6-800V. The reason being that a different spark has reported that an SWA cable we'd...
  2. P

    current carrying capacity

    In the red Osg is t&e table 6f ? Ie flat cable? I notice that table 6 e1 has two core and three core non armoured would this cover t&e or is this for flex only. We havnt covered this in college Thanks for any help given. Craig.
  3. S

    Current carrying capacity of ring circuit

    I am happy with calculating current carrying capacity for straight runs of cable. I am not to sure how the imact of a ring effects the cable calcs? Its hard to see what the possible loads might be. As of this do you take the center point and use maximum demand? So for example on a 35 meter ring...
  4. yellowvanman

    SY Cable - current carrying capacity

    Anyone know which table in the BGB can be used for SY current ratings or can direct me to a relevant table?
  5. spud1

    Current carrying capacity of 2.5mm flexible cable

    Hi Guys if anyone has a regs book to hand please can you give me the current carrying capacity of 2.5mm flexible cable clipped direct, single phase.
  6. S

    Tabulated current carrying capacity

    Hi all can some one help me out with this, It = In divided ccxcixcgxca I have a 32 amp mcb divided by cc 1 x cg 0.80 x ca 1.03 = 38.8 amps current carrying capacity. What would the tabulated current carrying capacity be, as it should be higher than the current carrying capacity. Hope...
  7. L

    decreaseing current carrying capacity

    how does one decrease the current carrying capacity of a cable
  8. 1

    Derating factors and current carrying capacity of pv cable

    Does anyone know which table I should be looking in to calculate the current carrying capacity of 4mm PV cable and also how to do the derating calc for the Non conformities in my MCS inspection? I installed a 6 panel Mitsubushi system with the +ve and -ve legs of the string measuring 15m each...
  9. P

    current carrying capacity of SWA cables

    Im working in africa right now, I have 2 sets of regs, SANS (South African national Standard) and BS7671;2008... anyway to cut a long story short, both regs state different current carrying capacity for eg 70mm 4 core buried direct, a huge difference, I know the BS7671;2008 regs as my own, and...
  10. F

    current carrying capacity

    Can anyone tell me the current carrying capacity of a 400 mm copper, insulated flex with non armored sheath , manufacturer has supplied a table(4f1a) but says two single core cable , rating them at 644A. the cable number from the manufacturer is 1227798371. Just so you know it will be a group...
  11. P

    current carrying capacity -2nd opinion

    Hi if you are are running 6mm T&E in plastic trunking fastened to masonry what installation method is this? I would normally use table 4D5 of the brb for T&E but nothing there quite fits so would 4D2A, ref method B and 38amps be the best fit - cheers.
  12. S

    Current carrying capacity and volt drop calc

    Hey all. Hope that this post is relevant to this section. Got a call this morning from my colleague who is on a large industrial job at the mo. He has asked me to calculate and come up with a suitable cable size that is forming part of a distribution circuit. I also need a suitable fuse size...

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