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  1. Jay Sparks

    Cables in parallel formula

    Hi Guys Quick one for you. A cable that is 25M long and has a resistance of 2.3 m ohms/M ( milli ohms per metre ). A second Identical cable is to installed in parallel with this conductor. What is the total resistance of the two conductors connected in parallel? 1st conductor: 25 x 2.3 =...
  2. L

    Is this total load correct?

    Guys I'm putting 9 x 35W GU4 downlighters in my parents bungalow all on one switch, they are SELV 12V As I have good access to the loft I'm going to put them on their own circuit, I'm just trying to work out the total load in Amps If the voltage is 12 and wattage 35 then I get it to...
  3. Kamikaze

    Obviously a man in total control and dedicated to his profession!

    http://www.youtube.com/watch?v=CSuvvQrgmBM
  4. T

    Total Re-Wire, Steels and cables

    Hi all cant find anything in the regs on this one so guess it purely experience... Im on my a re-wire where they have decided to gut the place and completely rearrange everything. I returned to site today to start work and they have installed a number of steels (rsj's) around the place making...
  5. D

    total circuit impedance????

    if anyone could help me with this i would really appreciate it. Q. A series a.c circuit has a resistance of 3ohms and an inductor of 0.0127 H connected across a supply frequency of 50hz. What it the total circuit impedance? the answer is 5ohms but i have no idea how to work it out...
  6. W

    ring circuit test

    Hi all just wanted to confirm as got the nic man and anything that comes up, want to be confident in the answer. Am i right saying that the r1 & r2 reading on a reading circuit should be ruffly the quarter of the end to end readings added up ie L2L=0.26 N2N=0.26 L2L=0.43 TOTAL = 0.95...
  7. S

    hi all newbie total newbie

    hi all newbie total newbie,,, jus thought i'd say hi, recently tried the accesss to trades fiasco,,,,, i'm feeling ikkle issed off with it all,,,, anyway how are you all doing
  8. carl9254

    Total Rewire

    Hello, just started out on my own, done a few jobs already. A mate has just bought a house and its wired in aluminium, so he has asked me to rewire, after speaking to a couple of electricians i know they said go for it and any advice needed they will gladly give me, its a terrace 2 up 2 down...
  9. M

    Lcm, booster, photo cell key switch

    Hi Done tube work wired lights and photo cell, the key switch, Lcm and power booster done by another guy, switched on lights ok but they are very dim and take 1 hour to warm up, photo cell not working? Around 13-14 lights on a long run, if the lights were from the board via a key switch things...
  10. F

    Hi all, total noob here.

    Hi all, I really glad to have found this site. My background is in music-tech and computing - so lot's of wiring, some, networking, soldering and a couple of fried components - but mostly as hobbies. I'd really like to throw myself into something technical and electronics is at the...
  11. S

    calculating total load on a consumer unit

    this probably is a daft question and the answer maybe staring me in the face, but im going to have to ask. ive got a 32A ring for kitchen, 32A ring for rest of flat, 45A mcb for shower, 16A for boiler, 6 A for lights, 16A for cooker = 147A i have a bs1361 100A main incoming fuse. Would i have...
  12. S

    What do i need in total to be a fully qualified Spark?

    Hi i've got the following :- NVQ Level 2 C&G 2330 Level 2 I'm currently doing my 3 day 17th Edition Course And going to do my C&G 2230 Level 3 course in September What else would i need? Thanks
  13. J

    Not a total novice, but just qualified

    Hi all,not a total novice but only just passed 17th and part p. I used to work for an electrician when i was 16 and did all aspects of the domestic and commercial work but none of the theory or testing. I worked with this man for about 10 months before he decided to change jobs. As a result i...
  14. S

    working out Kva etc!

    Hi guys n gals, wondering if anyone knows the best method of working something out: if ive got a 3 phase supply, rated at 45Kva then how many amps do i have in total and per phase? does square root of 3 come into anywhere? also be handy to have the above solved and equated into KW's as...
  15. Dan

    Total Electrical Training - Course in Harlow

    Please leave feedback if you've been on this electrical course.

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