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  1. P

    Difference between 250v/500v insulation resistance and 15ma/200ma continuity test?

    Hi I hope everyone is all well. I’ve built a rig at home on some ply to do some testing and fault finding to prepare for my exam and just learn in general… I put 100v then 250v through L & N through a B22 led lamp and also the spur neon to see what reading I would get. They were both the same...
    • ppelec100
    • Thread
    • between continuity difference insulation insulation resistance resistance test
    • Replies: 5
    • Forum: UK Electrical Forum
  2. S

    Why did test lamps show 0V between live side and dead side?

    I removed a fuse and before reinserting did the following tests using test lamps. Live side - Neutral = 230V, Dead side - Neutral = 0V, Live side - Dead side = 0V. I then used a multimeter to check these results as I was expecting a potential difference of 230V between Supply side and dead side...
  3. HappyHippyDad

    Difference between 1p+N and double pole RCD

    I need to replace a Hagar RCD (model number CN284U). This is a type AC RCD and I wish to replace it with a type A. The model number for the Type A equivalent is CNA584U. They are both 100mA, 100A, S type. The only difference being is that the Type A RCD is referred to as 1P + N rather than...
  4. littlespark

    Xbox consoles. What’s the difference?

    Not used this part of the forum much. My girls have got for Christmas, or the middle ones birthday in January, every Just Dance game since they came out. We used to get them on the Wii, then the Xbox one. This year however, it’s only available on Xbox series X or series S, not the Xbox one...
  5. K

    difference between semi flush and flush service panels?

    I am upgrading an old 100A semi flush outdoor overhead panel to 200A solar ready, panel. Was looking at Square D SC2040M200PF, but this appears to be designed for bottom feed- with option for top feed. Does not appear ideal, and my installer says might be a real PITA. I am not seeing many...
  6. T

    THHN vs Romex behind drywall - why the difference

    THHN is supposed to be enclosed in conduit when behind drywall. Romex does not have the same requirement. Romex is "basically" THHN encased by a secondary sheath. Does this sheath really make that much difference such that THHN must be in conduit but Romex does not? Does that thin layer of...
  7. timhoward

    Extending earth rods making minimal difference?

    Today I found a 466 ohm Ze. That's actually a new upper record for me. I assume the rod was completely corroded through. So started to bang in some new 5/8ths rods. 1 rod - 180 ohms. 2 rods - 95 ohms. 3 rods - 93 ohms. Hmm. 4 rods - 92 ohms! Grrrrr. I gave up then as I'd run out of rods. I...
  8. J

    Difference between FSU and 3 pin plug, both with 5 amp fuse for LED downlights?

    Is there an obvious reason why I can't just fit a plug onto my LED soffit downlights, fitted with a 5amp fuse and plug it into a socket rather than install a 5amp fsu? I'm fine with the plug being permanently plugged in as the socket gets no use anyhow. TIA
  9. K

    Does 1 Amp make that big of a difference in glass fuses?

    Hello, I have a Chinese 90w laser engraver, and recently the power supply went out. While operating, I heard a pop, and when I disassembled, I found one of the transistors had shorted with a black mark. I have since replaced this power supply, and replaced the fuse that is located in the...
  10. B

    Difference between Hager RCB's

    What is the difference between a Hager MT132 and MTN132 circuit breaker? (apart from the fact that one has an 'N' on it and the other doesn't). I need to fit (or get fitted if I can ever get a lecky) an MT132. Thanks Brian
  11. M

    Difference between ON and OFF intervention in the tsd of an ACB trip module

    Hi All, I'm trying to learn about discrimination and I came accross the LSIG characteristics of an Air Circuit Breaker. Howecerm there is something I really cannot understand about the Tsd. What's the difference between ON and OFF in the intervention? Thank you in advance
  12. E

    Electrician's mate vs improver vs electrician - what's the difference?

    I see mates jobs asking for quals and duties to include pulling cables, termination, chasing, patching, snagging, fixing issues, basically everything except testing and inspection. So what is a mate really and how is it different from a bonafide electrician? Is it just the qualifications...
  13. W

    Difference in scrap price between pvc insulated twin & stripped cable.

    I’ve got a hell of a lot of scrap cable in my garage. I know it would take a long time but is it financially beneficial to strip the cable or does it not make much difference?
  14. Rockingit

    Difference in a resistive and non-resistive spark plug?

    So I'm home servicing one of my Stihl machines (2 stroke brushcutter) and my local dealer apologised that technically it should take an R (resistive) type plug but they're hard to get at the moment and a non would work fine - what's the difference?? NGK BPM6A -v- BPM6(R)A
  15. C

    Difference between Eaton's residential & commercial duplex receptacles?

    I am having trouble determining the significant differences between Eaton's residential & commercial duplex receptacles: Model #270W-10-LW (https://www.lowes.com/pd/Eaton-White-15-Amp-Duplex-Outlet-Residential-10-Pack-Outlet/1001438408) Model #BR15W-10-LW...
  16. S

    Difference in spec for these D3V microswitches?

    Hi. Just replaced the second door microswitch in my Sharp R959 combi/microwave oven - there's three there in total; the first went a couple of years back, and the third is still ok. That's not a problem - it's been great machine for many years, and has only ever required a new TT motor, oven...
  17. timhoward

    Insulation resistance difference both ends of ring final cct

    Initial fault was RCD tripping, narrowed down to a ring final cct. IR tests on that cct with all loads removed were showing almost zero between neutral and cpc. So I broke the ring apart and eventually found the nail through a cable, and got that all sorted. Now its testing ok in as much as...
  18. R

    Can a difference in phase voltages cause a motor to fail?

    Here is the background: A new Grundfos 3 phase sump pump was installed in a bore hole to pump groundwater to a holding tank. After 6 weeks the motor failed, the installer measured the voltage of the 3 phases which at the time were P1-237v P2-250v P3-233v and suggested this was the likely cause...
  19. B

    What is the difference between the LCL and C&G Part P qualification?

    hi studying for Part P and the exam board from my course is LCL, is this a problem?
  20. Lister1987

    L3 2365 v L3 8202 - difference

    Anyone know much about the difference between the 2 courses? My local college has dropped L3 2365 in favour for L3 8202 and I want to get myself familiar with the course. The books I have cover 8202, 2365 and 5357 so not needing new books.
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