minimum

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  1. S

    minimum cpc sizes

    Just running thro some design calcs for minimum cpc size and im getting some unrealistic readings. Example 1.5mm c.s.a live and 4.mm cpc on a lighting circuit?? circuit is Zdb = 0.083 Circuit 1L1 Assuming we can use 1.5mm cpc R1 + R2 = (12.10 + 12.10) x 1.2 x 3.57 / 1000 = 0.10ohms...
  2. E

    Regulations for minimum distances from water based appliances/general questions.

    Hi, I have a few questions regarding the requirements for items such as meters and fuse boards and the minimum distance they can be from boilers/water tanks/washing machines. First question, the existing fuse board is located in a pantry of size 1500mm x 1300mm. The fuse board is from 1977...
  3. N

    Jcc led7 lighting

    Hi Guys, im after some advise. I'm currently completing a job where I have installed a vast amount of Jcc led7 Downlights. The client got trailing edge dimmers which I have found out are made by varilight. The have minimum wattage of 40 watts which in some rooms is causing the light to turn off...
    • NickJohnson
    • Thread
    • client jcc led lighting minimum resistor wattage
    • Replies: 1
    • Forum: UK Electrical Forum
  4. nowaypedro

    PL Insurance

    First post so please be gentle Just took out £2M PL insurance with Simply Business today. Price was good (less than £100). Process was easy with no hidden restrictions (i.e. 3phase) and also no gimmicks (i.e free tool cover and PI insurance). Better still - if you say i recommended you we...
  5. M

    Minimum distance for an FSU from a hob.

    Is there any difference in minimum distance for an fsu from a hob than a Socket. I know it's 300mm for sockets but can't find if its different for FSU's. thanks a lot.
  6. Tuttle

    Minimum protective conductor size

    CU replacement ... existing ring mains (on 30A 3036 fuses) are wired in 2.5mm T&E with a 1.0mm cpc :sad_smile: I'm looking at Table B7 in the OSG which seems to say to me that the minimum protective conductor size is 1.5mm for a fault level up to 3kA on a class 3, 32A breaker. I've got a max...
  7. N

    EICR's and minimum qualifications

    Hi, I'm looking for some advice. I had a phone call today from a company asking me whether I'd be interested in performing some EICR's for them which they supply to the public. I am aware that someone considered a 'competent' person can perform these but what is the minimum qualification that...
  8. S

    how long before we're on minimum wage?

    i've just been browsing the job sites and i came across this. has anyone seen a job advert offering less than £9 an hour for an industrial/commercial electrician who can install, test and commission? bloody binmen get around 25k - for a 37 hour week. Electrician x2 - Housing Services...
    • shagbite
    • Thread
    • before long minimum wage we're
    • Replies: 20
    • Forum: Business Related
  9. Spoon

    Minimum working space around electrical equipment

    Hello people I need a bit of help confirming Minimum Working Space around electrical enclosures. For example: 10A 1PH 230V enclosure mounted on a structure with a hand rail in front of it, in an EC country. What I have been using for the minimum distance between the enclosure and the hand...
  10. A

    builder needs advice on what minimum requirements required

    I have a guy thats just started with us who used to work for a father and son electrical firm. The father and son were part p trained and they would get this guy to carry out a lot of the work and then test it themselves etc and issue the certificate. He has now come to work for me. He is more...
  11. B

    need help but realised there's a minimum posting amount prior to posting pics!

    That made me sad, spent a while formulating a request with pics and them it said i couldn't I have to post 6 posts first.....
    • bikerjodie
    • Thread
    • amount minimum need help posting there's
    • Replies: 4
    • Forum: UK Electrical Forum
  12. H

    Breakers & Cable Sizes

    Evening all, Currently studying Electrical, quick question. Is there a page in the onsite guide which tells you the minimum size per breakers ?? Thanks in advance
  13. M

    Non Con on Annual Assessemnt - Minimum Irradiance Levels on String Tests???

    Hi, on our annual pv assesement we had a NC due to the irradiance level when testing the strings being recorded at 58 W/m2, so reasonably dull/overcast i guess but not exactly dark. I never knew that the minimum level has to be 200w/m2, does anyone know where this is documented please?? Our...
  14. D

    Minor Works and Meter Tails

    When installing lights would you change meter tails from 16mm to 25mm. Customer doesn't want to pay for upgrade main service fuse is 60a
  15. I

    Minimum cpc for class 3 energy limiting MCB

    just been looking at table 2d p104 OSG re minimum cpc sizes for class 3 energy limiting mcb (BS60898-1,-2 confused as to why it states that a minimum cpc of 1.5mm2 is required for a type B MCB with a fault level < or = to 3kA minimum cpc of 2.5mm2 is required for a type B MCB with a fault...
    • ianphilip007
    • Thread
    • class cpc energy mcb minimum
    • Replies: 1
    • Forum: UK Electrical Forum
  16. C

    what is the minimum cable you can use for a100A single phase ccu

    hello sparks, what is the minimum cable you can use for a100A single phase ccu, the meter is out the front of the house and the ccu is 10m inside the house cable must come in under house duct? please solve this argument im having. - - - Updated - - - and should it be armered
    • chris-
    • Thread
    • cable minimum phase single single phase
    • Replies: 4
    • Forum: UK Electrical Forum
  17. O

    National Minimum Wage

    Just been on the DirectGov website there, and I find the NMW disgusting! The thought that an apprentice can be paid £2.60ph (the apprentice rate, for apprentices under 19 or 19 or over and in the first year of their apprenticeship) is shocking. That means that if they're working a 40 hour week...
  18. Tuttle

    Main Protective Bonding (Domestic CU Change, TN-S supply)

    I've gone around in circles several times on this and I'm still not completely sure what the answer is ... generally speaking, when changing a domestic CU in a house that has a TN-S supply and 6mm2 main bonding (which is in good condition) is it necessary to upgrade the main bonding to 10mm2? I...
    • Tuttle
    • Thread
    • bonding change conductor conductors domestic earthing main minimum protective supply tn-s
    • Replies: 4
    • Forum: Domestic Electrician Forum
  19. M

    Dimmer rating not making sense

    Went to a house the other day as dining room lights not working. 4 x 40/50w gu10's on a dimmer, dimmer faulty. Looking round the house there was an incredible amount of incandescent lighting mostly on dimmers so I suggested to customer that it may be worth spending an extra couple of £'s on the...
    • mhar
    • Thread
    • dimmer instructions making minimum rating sense suitable
    • Replies: 5
    • Forum: UK Electrical Forum
  20. H

    Part P registration Level 3 diploma minimum for entry 2013

    Has anyone read the NAPIT write-up regarding the minimum requirements to join a Part P scheme in 2013? Just had a little read and it was proposed (as we all know) from January 2012 that the minimum requirement would be a level 3 Diploma in Domestic installation. But is was also proposed (which I...
    • highspark
    • Thread
    • diploma entry level level 3 minimum part part p registration
    • Replies: 5
    • Forum: Australia

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