carrying | Page 3

carrying

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  1. Gazthesparky

    Carrying out electrical work / testing in Scotland

    Hi all Been around for a few weeks but this is my first post so thought I would say hello just after some advice from some sparks in Scotland. I use to work for a large NIC firm in England doing installation and periodic inspections. I know you have to be registered with a scheme to comply...
  2. B

    Doncaster firesure current carrying capasity

    Hi all Been on Doncaster website and can not find the capacity for a 2.5mm 2core firesure. I am assuming this is because the match the installation methods of a T+E. does any one have the relevant info. Cheers Beaver
  3. 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...
  4. J

    Verifying earthing of a property before carrying out any work!

    HI... Would i right in saying that it is important to first check that a property is earthed sufficiently and that readings are within what they should be for T-N-C-S, T-N-S, TT systems. Upon discovering a house has no main earth route back to star point would it be correct to say that no work...
  5. 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.
  6. 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...
  7. 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.
  8. 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...
  9. 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...
  10. 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...
  11. 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.)
  12. 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?
  13. 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.
  14. 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...
  15. L

    decreaseing current carrying capacity

    how does one decrease the current carrying capacity of a cable
  16. 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
  17. 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...
  18. 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 ...
  19. 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...
  20. 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...

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