carrying

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  1. 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...
  2. N

    Question on carrying out Zs testing. Please Help.

    When carrying out Zs test for a particular circuit lets say Socket, what happens to the RCD protecing that circuit does it have to be ON or OFF? I know that the socket under test must be On and I know it is a live test. Many Thanks.
  3. M

    Carrying to much & cost of fuel

    Hi Wonder how much extra fuel we all use by carrying crap around? had a sort out today and my god i was shocked seeing it all out of the car (Megane Estate) 8 Stanley organisers all pretty full . screws, wagos, choc block, plugs, drills wood, metal, masonary. 1 18v Drill Driver 1 18v Hammer...
  4. A

    "Unqualified Electricians" carrying out EICRs

    The article doesn't mention what qualifications this 'electrician' had, but it seems he had filled in the EICR incorrectly, providing values for circuits which didn't exist, then the QS was given 46 EICRs to check at once, and missed the mistakes. Should the CPS prosecute? Discuss...
    • Adam W
    • Thread
    • carrying eicr eicrs electric electrical electricians out
    • Replies: 29
    • Forum: UK Electrical Forum
  5. A

    BS 3036 fuses on Ring Main.

    Hi, I am looking for a bit of advice on the Regs relating to BS 3036 fuses on a ring main, as I do not agree with the comments made on a PIR. The defect states that the conductors are too small for the protective device due to the 0.725 factor. The circuit is wired in 2.5mm2 singles in...
  6. J

    Fuse Downgrading

    Is it acceptable to leave a 2 core 10mm2 MICC cable supplying an upstairs flat on a 100A suppliers fuse? (Maxing demand is acceptable and disconnection times are within tolerance.)
  7. 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?
  8. 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.
    • spud1
    • Thread
    • 2.5mm aus cable capacity carrying current current carrying capacity flexible
    • Replies: 7
    • Forum: Australia
  9. 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...
    • schoe
    • Thread
    • aus capacity carrying current current carrying capacity
    • Replies: 18
    • Forum: Australia
  10. L

    decreaseing current carrying capacity

    how does one decrease the current carrying capacity of a cable
    • lofty84
    • Thread
    • aus capacity carrying current current carrying capacity
    • Replies: 9
    • Forum: Australia
  11. R

    Catenery carrying Cat5e

    Morning all, Is there any requirement to earth the catenery of the above situation? I can't see any reason to, so was just wondering what others had to say. Thank you
    • Richard
    • Thread
    • aus carrying
    • Replies: 3
    • Forum: Australia
  12. 5

    retrospective work.

    when carrying out a PIR before an address is rented out, there are always the issues of original wiring being sub standard for current regs. examples being earthing, special locations, RCD's smoke detectors to state just a few.i always make a point of upgrading the earthing, and do my best to...
    • 5544
    • Thread
    • aus carrying current edition electrical work retrospective standard work
    • Replies: 9
    • Forum: Australia
  13. N

    Who does just a Zs when carrying out a periodic on a lighting circuit

    Just answered a question on another post ,and it dawned on me , yippee the brain kicked into gear , i have read on loads of posts that people say doing an inspection just calculate the R1R2 by doing a Zs and taking away the Ze , i have never liked this method and heres a reason why ...
  14. S

    Puzzled by kitchen toaster - learner's question about flexible cables

    Hello all I was wondering if anyone could help me understand why our toaster came with a 0.75 sq mm flexible cable with 13A BS1362 fuse on the plug. In class we've learnt that the rating of a protective device has to be lower than the current carrying capacity of the cable it protects. But...
  15. 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...
  16. C

    Current carrying capacities and vold drop for copper conductors

    Hi Help please with the above. Using on site guide Im stuck on Cc as I cant find rating factor for 42A type B breaker or is it 1? Many thanks Cider
  17. D

    Carrying out Minor works !

    Doing a kitchen refurb at the moment which includes changing pendant for spots and moving / adding sockets which I gather is classed as minor works! Existing Kitchen circuit feeds whole house not just kitchen and is not on rcd/rcbo! As work carried out is only minor works, for it to have a cert...
  18. 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...
  19. 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...
  20. D

    Current carrying capacity,3 core, SWA buried

    Garage install using 4.0mm SWA 3core, clipped direct 10m then buried underground 10m. Would 4.0mm SWA be sufficient to carry at most 38 amp? (32amp ring + 6amp lights) Looking in regs (page 280) I'm not sure what to use 6.0mm or 4.0mm, as for 3core it states maximum current carrying...
    • DoBBY
    • Thread
    • aus buried carrying core current swa
    • Replies: 3
    • Forum: Australia

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