figure

  1. J

    NICEIC Certification Scheme Max demand on eic for niceic ---

    Morning i have calculated my max demand as 69.6a (sum of mcb's x 0.4) and on my eic i have n/v the main head fuse- but on the sticker it says 60/80a (i know it could actually be 60 or 80 or 100 inside) this is the job i am using for my niceic initial assessment will this be asked about by...
  2. N

    Am2 advice!

    Hi, before taking my am2 I read some very helpful threads from this site. So anyone reading this also preparing I hope this helps I got through my install and testing fine. However I failed the fault finding C2. passed C1. Whatever that means. I did all my tests at the board and struggled on...
  3. P

    Volt drop question

    Hi everyone, I am intending on working in the uk shortly, i am from ireland and dont have the uk regs presently. I am trying to prepare for the exmas i will face and the cable calculations/volt drop calculations are something i cannot remember doing here in ireland in my college time so my...
  4. ray-bentos

    Continuity on lighting circuit - weird results?

    Hi Running a quick test on a lighting circuit today, was doing R1 + R2 on downstair lights. Everything seemed OK, but upon trying to prove polarity by using switches obviously upon switching off the circuit goes open but when tried switching on again and testing again I got a wildly...
  5. jackhammerJIM

    volt drop calcs and 230 v

    why do we have to do the calcs to 230v when the supply never is 230v measured voltage at source is 248 volts at the site i am on at the moment , can somebody shed some logic on the idea before i start engineering an 18 volt drop into my cable sizes ( a joke of course but why not ? ) :ihih:
  6. driverman

    TT testing question

    Hi, Doing 2395 revision and doing a small temp builders supply therefore TT . Installed 2 x 13a sockets protected by 16amp breaker and 30ma RCD. Installed 1 x earth rod immediately by the meter / con-unit position. No other circuits. No additional main equipotential bonding as nothing there...
  7. T

    Socket figure of 8 !!!!

    Alright folks doing condition report and I have a ring circuit which on the figure of 8 test I am getting 0.17 at the db and at half the sockets on the ring, when I get to the furthest out room on the ring my reading jumps to 0.39 at about 8 sockets any ideas why this would be ??
  8. J

    Problems with Maximum Demand figure

    Hi guys I'm after a bit of help with working out my Max Demand normally in a domestic situation its fine but theres so many heaters and water heaters on this that I'm a bit confused. I have been asked to do a bit of commercial installation for a kitchen and toilets its a children's soft play...
  9. R

    Figure of 8 to kettle adaptor for Plasma TV needed!

    Hi, Can anyone please help me find the reverse of one of these: IEC Female Socket C14 to Figure of 8 Eight Male C7 Plug Adapter - PL11184 - kenable for HDMI Optical TOS Network Ethernet RJ45 Scart Audio Phono Jack USB Firewire 800 ADSL Cable Leads I'm looking to replace my LCD TV with a...
  10. T

    Pricing

    Can anyone give me an idea of costing for domestic installations per point i.e price per socket outlet, lighting point, mains/cc and earthing etc? New to being selfemployed so any help appreciated folks:hurray:
  11. S

    4mm radial circuit

    I've just been flicking through the regs to do some cable calcs for a job and noticed that a 4mm 2 core cable installed using method B (under floors etc) has a capacity of 30A. However it is ok to connect to a 32A MCB for a radial socket circuit. Don't know if its just me missing something...
  12. Y

    Try and figure this one out!!!

    Im at the fuse board and there is a fault with one of the lighting circuits. Cut a long story short when the Live is in the breaker the neutral becomes live aswell. So I presume its a short circuit, I isolate the power and test continuity between Live a Neutral (My tester is calibrated and I...
  13. J

    Kettle power cable to figure of 8

    Hi this weekend my wife and i made a spontaneous purchase and bought a new LED Samsung TV. The existing LG TV that is wall mounted in my living room has the wires channelled through the wall. The LG uses a power cable called a kettle power lead. The new Samsung has a figure of 8 power lead. So...
  14. C

    Help with C&G 2330-203 level 2 question - just can't figure it out!

    Hi, I'm revising for my level 2 203 exam which I'm due to sit on Wednesday. I'm struggling a bit trying to get my head round power factors and lagging and leading.. One of the practice questions I have is: What is the power factor of a circuit with a 4 ohms resistor and a 10 mH inductor? The...
  15. D

    Pricing

    Hi guys, would like your opinion on a hourly rate I can work my jobs to. I have been a sparky game in various areas for next part of twenty years, but have decided to narrow my range to domestic, I have recently joined Elecsa and passed my assessment with no problems, but am looking what pricing...
  16. M

    figure of 8 test

    Can someone please explain why we have to cross conductors from legs of a ring to perform figure of 8 test (r1+r2 or rn+r1) and why we can't just link those conductors from the same leg as it would also make a loop... Would I be right in thinking that you would get a more even reading across...
  17. F

    DECC reveals disappointing April installation figure

    DECC reveals disappointing April installation figures | Solar Power Portal As we all predicted ....
  18. TaffyDuck

    Voltage drop taken to extremes

    Just been asked to go and check out a new agricultural barn wired up by a builder. The barn is 350m from the house ( where they have fed it from a socket in the living room) and they have fed it with 1.5mm two core SWA." because its only a socket and a couple of lights".
  19. S

    r1+r2 on ring figure 8 readings

    My meter seems fine but when measuring r1+r2 the reading really seem to jump about from 0.31 up to 0.71 is this normal on sockets Why do the readings jump about on a ring figure 8. Test R1 end to end was 0.61 rn was same and r2 was about 1.66 x r1
  20. G

    Recognised methods of two way switch wiring /colour coding

    Following on from the thread on Two way and intermediate switching (and related conversations) I was wondering where the "recognition" of just one of the methods comes from how far it had spread. I've assumed preference stems from osg 7.4.4 as followed by Figure 7.3. No reference is...

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