Recent content by james KEI

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  1. J

    Conduit bender wanted

    Hi everyone I'm after a conduit bender, shortie or similar. I'm in Kent so can collect so far if not postage. Thanks James
  2. J

    max demand and diversity

    Yes that's the one! I did my 2391-20 (old 2400) last year so we needed it for that
  3. J

    max demand and diversity

    Table 3.4 g factors table pg34 Figure 3.4 coincidence g factor graph pg33 In the electrical installation design guide
  4. J

    max demand and diversity

    Hi doc It's planning for a house to be converted in to two flats so nothing there as yet. True, but as there is no eco7 there's nothin to stop them turning them on in the day. Unless I introduce my own version with a time clock and contactors. Has noone come across this situation before? Thanks
  5. J

    max demand and diversity

    Hi Thanks for the replies. Sidewinder-can you tell me why you say to use 0.4? In the designers guide there's a graph (don't have it to hand) and it gives you the g factors depending on the possible coincidence all all loads. As there's to be NO economy 7 and the storage heaters will be off the...
  6. J

    max demand and diversity

    hi all just wanted to get some opinions. got a place being converted in to two flats and everything will be electric! new edf supplie(s) to go in and so need to know what max demand in kva is for edf to evaluate. just one flat electric shower 10kw electric oven/hob 8kw electric water htr...
  7. J

    new tester

    hey all, my tester broke, so i'm looking at new ones. when i read through the spec' i keep seeing L-PE & N-PE, may sound silly and i'll probably regret it but what does the PE stand for. I've forgotten!! thanks james
  8. J

    feed to DB has earth through a seperate bush to L&N????????

    here is a picture i took on my phone at the time so may not be great quality you can see the submain cpc enters in the left bush and the L+N in the right bush (from the meter) ---------- Post Auto-Merged at 20:10 ---------- Previous post was made at 20:01 ---------- in my opinion although...
  9. J

    feed to DB has earth through a seperate bush to L&N????????

    Hi ppl, A DB sitting on metal trunking, it's 25mm bush/lock ringed on the trunking, the submain feeding it has L+N through it's own bush and the Earth goes through a seperate bush with the circuits coming off that board. I remember one of the comapny's i used to work for pulling this up on...
  10. J

    3871s & cabinet lts

    Special Location, I sincerely apologise, sorry From your comparisons I can see what you mean about the EIC for changing them in which case it makes me question wether to do them or not. I agree that ultimately a new DB is the best route for safety etc bit I was trying to help them out with a...
  11. J

    3871s & cabinet lts

    Ok I get that now, with your comparison to the 300 away from sink guidance. I'm still thinking of the Story/theory of Joe Bloggs standing in the bath full of water changing the light bulb way of thinking I was tought at college. In your favour I guess I could also go along the lines of replacing...
  12. J

    3871s & cabinet lts

    I'm only asking a question. A 240v light fitting sitting 500mm directly above the sink with mains pressure water (potentially lots of splash) where they do the washing up, wet hands. Rings alarm bells with me. IP because I don't think I can relocate the the cable, just after some suggestions...
  13. J

    3871s & cabinet lts

    hey all, two questions 1 - person has an old rewireable fuse board, can't afford upgrade so will fit the Wylex retrofit 3871s. just wondering how i should cert' this? 2 - kitchen under cupboard lts. currently are the old clear glass tube fluro style. one cabinet is dead above the sink and...
  14. J

    Change to 3 phase?

    There's a g factor you can apply for diversity, it's in the design guide, once you've applied diversity you can then apply the g which is 0.6-0.8 I thin. Look it up
  15. J

    Change to 3 phase?

    Isn't there a g factor for diversity too? You could use electric showers but pumped versions like Aqualisa rather than '10KW power showers' Wouldn't the garden office ring count as another ring and drop the load on that too after diversity Maybe suggest the water version of underfloor heating...
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