figure

  1. 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...
    • Patrick Griffin
    • Thread
    • cable figure question remember tables volt drop volts
    • Replies: 14
    • Forum: UK Electrical Forum
  2. 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...
  3. 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:
  4. 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...
  5. 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 ??
  6. 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...
    • Jon Hodgson
    • Thread
    • demand figure maximum problems
    • Replies: 20
    • Forum: UK Electrical Forum
  7. 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...
    • robgb
    • Thread
    • adaptor figure kettle needed plasma
    • Replies: 24
    • Forum: UK Electrical Forum
  8. 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:
  9. 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...
  10. 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...
  11. 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...
    • jimbo1234
    • Thread
    • cable figure kettle power
    • Replies: 4
    • Forum: UK Electrical Forum
  12. 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...
    • chris.rigby
    • Thread
    • c&g can't figure help level level 2 out question
    • Replies: 8
    • Forum: UK Electrical Forum
  13. 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...
    • Dazzol2009
    • Thread
    • charge costs figure hours pricing
    • Replies: 4
    • Forum: UK Electrical Forum
  14. 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...
  15. F

    DECC reveals disappointing April installation figure

    DECC reveals disappointing April installation figures | Solar Power Portal As we all predicted ....
  16. 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".
    • TaffyDuck
    • Thread
    • aus figure problem socket taken voltage voltage drop volts
    • Replies: 22
    • Forum: Australia
  17. 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
  18. P

    Wind uplift

    Ok chaps how do u approach the wind uplift calcs? ive not produced any yet!!!! but no i need to start!!is there any software that can sort it!! i no senior members have the brain to sort it via BRE but just want honest opionons on what u lot do!i cant be the only one trusting in 25yrs of knowing...
  19. J

    how to work out r1+rn (and R1and R2)from end to end readings

    How can I work out the P-N figure of eight readings and the R1and R2 readings from the end to end readings of the ring cct. This is because our certs are typed up as we go along on site, and I only do the end to end tests on the ring. Can anyone help pls.
  20. S

    Insulation Resistance Test with Fluke 1652

    I'm using a Fluke 1652c as my MFT. When I do the Insulation resistance tests at 500v - sometimes the result is displayed immediatley i.e >500 Megohms , other times the resistance seems to climb slowly, peaking around a figure. As this figure is generally massively in excess of the required 2...
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