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  1. bartkusal

    continuity on ring main

    You most probably mixed uo with that. It is 1.67 greater cpc the line on 2.2x1.5 T&E. 1.732 is square root of 3 in 3phase calculations...
  2. bartkusal

    Old Houses and location of services.

    I think from the first 2 sentences, it is clear that OP is not an electrician, instead he is running the project, who did see the potential risks in the above scenario which is not always the case with us electricians, and it seems that he is really well qualified and inteligent man for his...
  3. bartkusal

    testing end to ends in a ring circuit

    very good point Murdoch
  4. bartkusal

    applying diversity

    I think we missed something in the OP. When you do by OSG, you not going by the fuse size, you going by the load size, so for cooker you apply all that 30% and everything to the load not fuse, unless it really draws 30A as you say, but that means your cooker is 6.9kW, is that correct. And shower...
  5. bartkusal

    thinking of training with train 4 trade skills

    I wonder is anyone see 3 and a half year difference between posts 8 and 9, the OP is probably finishing his level 5 engineering diploma by now...
  6. bartkusal

    Is this Fuse Box Legal?

    It looks like it is two rings from the updated pic, and the cable from chock block to CU seems like 4mm2 (unless its just thicker conductor insulation), so it wouldnt be that bad in that sence really, still load of crap....
  7. bartkusal

    Is this Fuse Box Legal?

    That is ring main mate, the first 3 terminals on the chock block, amazing....fire......fire.....fire.....:41:
  8. bartkusal

    10.5kw shower wired in 10mm twin n earth on a 40A breaker a problem

    It seems like you on the limits here mate, all depends on reference method the cable is installed. There is no way it will catch a fire,using lower rating mcb you just increased protection for the cable, builder talking nonsense, if anything , if you increased mcb to 45A , you increase the risk...
  9. bartkusal

    Cooker on its own ring

    Hi Ed, try to catch up wiht Ohm's Law, circuits in paralel. will clear things up, not dificult, you will fly through...
  10. bartkusal

    Mcb or rcbo ?

    That’s it, I knew something is not right here it looked like you had a go at me for me saying that 1 h. has 60 min and you proving to me that it has 3600 s. I was with you in the post 19 100%, just could not understand what you was on about that statute law thing afterwards. Absolutely...
  11. bartkusal

    Mcb or rcbo ?

    Absolutely...
  12. bartkusal

    polarity argument at work

    I thought the argument was finished, many opinions , main consensus was that keep consistent throughout or match manufacturers lighting systems, and regards you, I think it don’t mater, you still going to "rape" your pure lads on site :6:, feel sorry for them. lol...... I think you are a very...
  13. bartkusal

    3 phase electricity

    Surely, if there is a 3phase board, you have 3phase suply, probably 2 phases blanked as said before. Fierly simple then. P1- 2flats, P2- 2flats, P3 - 1flat and comunal areas
  14. bartkusal

    Mcb or rcbo ?

    Skilled person - a person with technical knowledge or sufficient experience to enable him/her to avoid dangers which electricity may create.
  15. bartkusal

    Mcb or rcbo ?

    Disagree on this. you cant class a shop worker as skilled or supervised person. Skilled is electrician, supervised is supervised by skilled person, that is electrician. And then comes the resident engineer,if there is one you dont need rcd anywhere, but that has to be agreed on design stage of...
  16. bartkusal

    polarity argument at work

    Exactly, if the lighting system throughout uses perm live as black , so am I, you always been told look at manufacturers, it makes sence to keep the same. This Dereck guy acts very srangely, perhaps he had a hard day I suppose.........
  17. bartkusal

    Thread made for the snobby stuck up sparks on here

    I do understand what you saying, but it ends up again, who you answer the questions to, if you post a thgread, you are new, you introduce yourselfe, and in your case I bet if you done that, you never had any bad replies i believe, but as I said you cant just give the answers to 5 week wonders...
  18. bartkusal

    Thread made for the snobby stuck up sparks on here

    Skyba, it all depends who you answer the question to.............
  19. bartkusal

    Thread made for the snobby stuck up sparks on here

    Makes me wonder why this thread was really started, what is real OP position on this . Looks like he created the thread without explaining his exact opinion, dont want to question his achievments, most probably that he is a briliant spark, but what is this human rights thing about? At times...
  20. bartkusal

    Thread made for the snobby stuck up sparks on here

    I am talking about 5 week guys who probably start 50% of the posts here, and believe , they are working in peoples homes, and then you get students with no manners or right attitude ( not all). If you ask politely and respectfuly and with letting everyone know what level you at, you will get no...
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