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  1. S

    Voltage between earth and switched line terminal on one way light switch

    After installing some LED fittings in a bathroom and disabling an electric shower circuit I carried out a check on the whole installation. All fine until I used my Di-LOG probe to probe the switch plate screws to check that I had not pinched any live wires in the light switch back boxes around...
  2. M

    diffrance between the red and green 17th edition books

    hello. im about to buy a 17th edition book i see 2 of them going kinda cheap but whats the between the red and green 17th edition books are they the same or different all together
  3. B

    3kw Immersion blowing sfcu 13a fuse about once a month...any ideas?

    On dedicated 16amp mcb Wired in 2.5t&e to sfcu (13a fuse) then 2.5mm heat resistant flex. Fuse has popped twice in last 8 weeks etc. Element R 18ohms. all seems ok? Should I just swap sfcu for 20amp double pole switch? haven't clamped to measure the draw yet as didn't have it with me. Cheers
    • bleach
    • Thread
    • between blowing element fuse ideas immersion protected switch
    • Replies: 21
    • Forum: UK Electrical Forum
  4. L

    EICR Supplementary bonding Question

    Hi all new to this forum but had a question regarding an EICR I have underway at the moment. It has so far failed miserably 50 C3's and about 10 C2's on day one of four. My main query is this it has metallic conduit fixed via self tappers into metallic walls and ceilings split into...
  5. J

    Difference between a Building and Household Electrician?

    Hi, I passed my 236 P1&2 many years ago and I only ever worked on buildings, so no twin & earth for me. Can anyone tell me if I would need to take any extra exams to do household work? Many Thanks Jason
  6. G

    Dead short between 3 conductors

    What reasons can anyone think of why a circuit would have a dead short across all 3 conductors ? so far I'm thinking - water damage - possible rodent / pest damage any more ?
  7. J

    230v between L-E, 0v between L-N

    230v between L-E, 0v between L-N Lighting circuit, 8 lights. Two lights working on the circuit and six not. The two working look like the first two going clockwise from the CCU. Is this likely to be a loose neutral somewhere? Or more likely that the switch live has been switched with the...
  8. A

    Earth to live resistance tripping rcd

    Hi I have a circuit to a septic tank sump pump, which is tripping the main RCD 30ma The only fault I can find is a 12K resistance between live and earth, I presume this is more that enough to trip the RCD, but was wondering at what resistance does the rcd trip with this kind of fault? Or is...
    • animox
    • Thread
    • between circuit control earth live rcd resistance tripping tripping rcd
    • Replies: 10
    • Forum: UK Electrical Forum
  9. S

    Isolator between meter and consumer unit

    Hi . I am new to this site. Can somebody give me advice to the following: What type of Isolator / switch is required to put between meter and consumer unit ( reason: upgrading consumer unit: crabtree star breaker 13 - way , new bus bar system) Thanks
    • sidneyspark
    • Thread
    • between consumer consumer unit isolator meter unit
    • Replies: 6
    • Forum: UK Electrical Forum
  10. W

    Puzzle over a lighting circuit with no CLC

    Wonder if anyone can help my poor brain on this one... Situation..domestic, house, 1955, full of every single elec DIY nightmares courtesy of owners in the 90s. Lighting circuits have no cpc, but in doing a DIY attic conversion at some point, previous owners put pretty metal lights up and a...
    • Wizbit
    • Thread
    • between circuit earth light lighting lighting circuit lights voltage
    • Replies: 21
    • Forum: UK Electrical Forum
  11. J

    Insulation test between 2 different circuits

    Hi scratching my head alittle today as of why when I test between two different circuit I was getting 55 meg ohms on L and N and 1700ohm on E. It is a horse stables and I can see one cable goto the the right hand side stables and the other stays in the left side stables, I thought it might...
    • Jimmyb
    • Thread
    • between circuit circuits different insulation reading right test
    • Replies: 8
    • Forum: UK Electrical Forum
  12. C

    110v transformer problem

    Was called to look at a 3phase 400/110v 10KVA transformer on a building site. The workers had been complaining their power tools ran slow. Found 230v on all 3 phases and 400v between all phases. Transformer output was 55v between phases. Healthy transformer on floor above, (which was on same...
    • Crosswire
    • Thread
    • 110v between phase phases problem supply transformer
    • Replies: 16
    • Forum: UK Electrical Forum
  13. R

    EICR and Supplementary Bonding.

    I have noticed recently on the forums various opinions on what does and doesn't warrant observation regarding bathroom bonding to previous 16th regulations, Would be interested to gather opinion on the following scenario..... 2 Bed 6th floor flat wired in PVC singles through in-situ pvc conduit...
  14. N

    Between A Rock And A Hard Place

    Okie peeps, this is my situation: I'm 28 years old, have my Level 3 2330 City & Guilds Certificate which I worked three years, part time at college to obtain. I tried to find myself work in the industry, but nobody would take me on as a trainee. I began work as an Alarm Engineer, and in the...
  15. J

    Confusion between RECC and MCS regarding sub contracting?

    Simple question, can an MCS company use non-MCS subbies and I get two different responses: Any views on the forum about this? From MCS via email: "Thank you for your enquiry. If a MCS certified company contracts another company ("Company B") to install the electronics, the company ("Company...
    • jerriais
    • Thread
    • between certified company confusion consumer mcs regarding section
    • Replies: 1
    • Forum: Green Lounge (Access Only)
  16. B

    stuck between a rock and a hard place

    Hi all, hope you can help me with this one. a few months ago I was going for it, my own work, my own business etc. However I got some temp work on brilliant money, so couldn't turn it down! Now I'm back to doing my own work and need some advice please! I've got a few small jobs to rattle out...
  17. T

    Insulation testing results

    Hi, Very new to this forum so excuse any faux pas's. Was wondering if anyone has come across this situation: Was doing some insulation testing as part of our planned maintenance and came across a motor that gave an odd result. Capstan Motor 440V/60Hz, 24kW, Star/Delta configuration. Removed...
  18. HappyHippyDad

    Continuity between neutral and earth?

    Hello all, I have just done a pre-works visit for a CU change and found continuity between neutral and earth!! This is a TT so I didn't think I needed to disconnect the main earth but after getting continuity between N-E I did, I also disconnected main bonding but still getting N-E continuity...
  19. W

    Distance between meter and cut out

    Could anybody tell me if there is a maximum distance between the main head and meter? thanks
    • Welshsparky
    • Thread
    • between distance meter out
    • Replies: 15
    • Forum: UK Electrical Forum
  20. N

    Link between N - CPC on fluorescent... what is it?

    Hello folks, I hope the picture shows ok. If it does not show, then basically there is a blue disc approx 25mm in diameter that may have a resistor or something in it. It is approx 4mm ' thick'. The blue disc is linking between neutral and earth on the fitting. Never noticed these before...

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