distribution | Page 10

distribution

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  1. 1Justin

    Lighting distribution circuit OK?

    Is there any reason under 17th why a lighting circuit (notionally a radial) shouldn't have a "distribution" tapped off it part way along, rather than looping in at each switch or luminaire? - By this I mean a junction box, which then serves power to sets of luminaires and switches off to the...
  2. M

    IP ratings on 3 phase distribution board

    Hello all, I've just carried out the remedial works from a EICR on a small industrial unit ( I didn't carry out the EICR). The 3 phase board had tails entering through seperate holes on the bottom, which was coded as a 2 due to possible eddy currents. I remedied this by cutting out the gap...
  3. T

    burying high voltage cable

    hi can anyone tell me the regulations on burying hv cable, depth, ducting?, need to be covered, any markings, type of infill or anything else of that nature- thanks i cant find it in the regs book
  4. S

    PV fed into sub board...?

    Hi- not a PV spark just a normal one (!) but have a PV question if I may. A friend has had it installed, & is happy. I am quite familiar with the fixed wiring at the house & recall her mentioning that the PV equipment has been "connected to the fusebox upstairs in the airing cupboard". This is...
  5. P

    Distribution Board to IP44

    Hi Guys Who makes a 3ph DB to IP44 - Agricultural Use, please? Or do you stick a standard one in an IP44 enclosure? Thanks Pete
  6. F

    Ipsc and Ipfc at sub distribution board

    Hi, Hope someone can help. I need to test the prospective fault current at a garage distribution board (i.e. a sub board) but the no trip function of my tester will not work and trips the RCD which serves the garage circuit in the main board. As I understand it, the figure to take for...
  7. P

    Western Power Distribution Address?

    Hi Does anyone have the address for western power distribution that you send the G83 applications to, email or postal. Many thanks Tom
  8. G

    gas bond from local distribution board

    My engineer wants me to fit a gas bond from a local distribution board in an office but as we know it should be direct from the MET. What if the distribution board is moved or removed? Needless to say i wont be putting my name to it. This isnt right is it?? How can i make the best of a bad...
  9. S

    which DNO?

    ive just completed an install in huntingdon near cambs i just want to verify what the DNO of this area is? its my first install and want it done right!!
  10. P

    Retro fitting of dedicated fuse on main distribution board (4 flat conversion) ?

    All I suspect this was in the wrong section (this one seems to be theory / practice related for trade). Sorry about that - will put in the general section instead. Paul Briggs
  11. L

    Distribution circuit question

    I'm running a 30 metre length of three core 16mm armour to feed a garage conversion which could have a high loading. The cable will be run from the external meter box where I will split the meter tails via a Henley The problem is There is naff all room in the box and I can't fit a switched...
  12. M

    500kva supply and distribution ct extension

    Hi guys Its been a while since i have been here and i have a new problem. I am to supply and install a 500kva distribution over 2 stages, 250kva now and the rest in the next 5 years. I am going to use Eaton mem switchgear, a 800a buzbar with 630mm2 tails and a 400a mccb within a 12 way...
  13. J

    Distribution board in showeroom

    Hi guys, went to price a job today in a Hostel. When looking at the mains position i was shown to the room containing it and to my horror it is in the showeroom. As you can see from the picture , the Board itself has been boxed in with plywood and has a hasp on it it is 700mm away from the...
  14. D

    Replacement Distribution Boards

    We are down to replace various DB's on old type commercial buildings, having looked at the install, they are in a bad state of repair, does the replacement DB, require RCBO's for all lighting circuits due to the cabling concealed in walls etc. Or can you fit like for like as it's pre 17th or is...
  15. S

    New Circuit of Distribution Board But Can't Access Main Board

    Hi folks, adding new lighting circuit to distribution board in small rented commercial property. There's a dist board in this property however main board and point of origin are in an adjacent rented out small commercial building that is difficult to access. Landlord has keys etc but as it's...
  16. K

    Distribution.

    If any of you are interested in distribution and protection you may find this interesting. http://www.electrical-installation.org/enwiki/Scope_and_content_of_Wiki_EIG
  17. W

    Voltage drop allowances for distribution circuits

    has anyone got any good guidance or information on how they design/allowance for voltage drops for distribution circuits and also how they calculate the V/D for distributed load circuits such as ring/radial socket circuits and lighting circuits I cant really find anything in the usual books...
  18. I

    height of distribution board??

    Hi guys just a quick one, we all know the height requirements of part p being between 450mm-1200mm for standard equipment, but ive never heard of a standard height for a db. And all sparks i know just say its a common sense thing, so in existing buildings (part p free) i just tend to measure...
  19. L

    PV circuit Distribution or Final

    Does the dedicated circuit for a PV system count as a Distribution or a Final circuit? Looking at the spec for the inverter most disconnect times are specified as 5 secs which implies a distribution circuit. Clear Sky Solar Ltd
  20. ringer

    EICR on installations with multiple distribution boards

    Am confused by the two 'types' of EICR - i.e. for either single or multiple distribution boards Section N is confusing me the most - the 'single' version asks about supply details but the 'multiple' one doesn't :thinking: Am I right in thinking that you use the 'single' form(s) for the first...

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