between

  1. 2

    Link between L1 on different one way light switches

    Took a 2 gang switch off a wall in a shop to investigate after workers had complained of crackling sounds and more recently tripping of the circuit. It appeared that there was a loose termination at the L1 terminal on the back of one of the switches. The unusual thing I discovered though was...
  2. S

    Post for the old man, anyone on here work for FH wheeler between 1966-1975

    My dad was wondering whether there was any sparks, mates, people who worked for FH wheeler which later became crown house engineering I believe between 1966 onwards. It would be great to here people's start to the industry and what's been the biggest change for them present to past. Look...
    • Sam cook
    • Thread
    • anyone between change electrical work industry old remember
    • Replies: 4
    • Forum: UK Electrical Forum
  3. S

    Electrical contractor stuck between right and Fire alarm contractor perspective

    Hello all I'm new to this forum and have recently joined due to a lot of threads here have been quite interesting and many have very good answers from knowledgeable people. I've been sparking for 12 years and spent my apprenticeship with my fathers electrical company. My appretership was quite...
    • Sam cook
    • Thread
    • alarm battery between circuit company contractor electrical electrical contractor fire fire alarm lighting right stuck
    • Replies: 17
    • Forum: Commercial Electrical Advice
  4. infinity

    Extending Data cable over 270M

    HI all, We have a customer who has 2 x 50 kWp solar arrays (one with SMA inverters; the other Delta) with a 50 kW export limit. He currently has a Cluster Controller / Energy Meter set up and working fine to limit one of his 50 kWp arrays (SMA) to zero export. The customer would now like to move...
  5. buzzlightyear

    new 18th regs, coming soon to your nearest cinema soon !

    more monies down the drain .
  6. D

    LED GU10 bulbs still glowing when turned off

    Hi Guys, Just need a little advice if possible. I have recently fitted 6 GU10 Downlights 230V on a customers landing with 5W Cool LED GU10's. When he turns off his light one light is still slightly on. I know this has something to do with the two way switching for the landing and a bit of...
  7. P

    Explain the difference between a transformer and auto-transformer

    Hi there, I understand that a transformer is used to either step up or step down the supply voltage. I know that the basic principle is that if there are more windings in the primary coil than the secondary coil then, the voltage is stepped down and if there a more windings in the secondary coil...
  8. A

    3 phase quarry pump

    Latest fact finding mission for you gurus to help me learn about Todays problem was a quarry pump not running, guy went out and meggared the cable and pump and found one of the two 10mm cables was down on the black phase. So while cable was ordered up and being delivered he was called...
  9. F

    Voltage through earth to desk

    I built a metal desk with wood top. I just wired in a 500W heat lamp on the desk. 13A plug goes to a single metalclad socket via 1.5mm2 3 core cable. Same cable then goes from socket to 1 way metalclad switch. Same cable then goes from switch to heat lamp. Earths are all connected to each...
    • Fergus Macdonald
    • Thread
    • between cable earth metal socket through voltage
    • Replies: 26
    • Forum: UK Electrical Forum
  10. P

    What is the difference between Electric Charge and Electric Current

    I understand that electric current is the flow of charge or electrons. would I be right in saying that electric charge is the ability of matter to experience force, such as attract and repulsion.
  11. G

    Potential difference between Earth and Neutral

    Has anyone ever encountered a fault with a RCD which causes a potential on earth in respect to neutral? I am a trainee electrician, working with an experienced electrician. We encountered a fault today, earth had a potential of 238V in respect to Neutral and a 0 V potential in respect to...
  12. M

    Low voltage between live and neutral

    Hello, ive just been to look at a job with a light not working, after checking found voltage between live and neutral is 170v, between live and earth is 230v, is it just a case of a neutral issue, eg, loose connection, water ingress any suggestions would be great, cheers
    • Marks Electrics
    • Thread
    • between lighting live loose low voltage neutral testing voltage
    • Replies: 15
    • Forum: UK Electrical Forum
  13. G

    volt sticks

    Hi folks,i Admin over at the plumbing forum,quick question regarding volt sticks,in this case a Fluke brand,now i fault find boilers so am very conversant with a multi meter ,however i use a volt stick to check boiler cases and pipework,on checking the spec on the fluke they go down to 100v,as...
    • gas man
    • Thread
    • between boiler check earth pipework volt
    • Replies: 42
    • Forum: UK Electrical Forum
  14. captaincaveman

    50 volts between nuetral & earth - Lighting/ fluescents

    Hello beautiful people. Quick one for anyone who may have an idea: Attended job today with a room with 2x 5ft fluescents not working and found 50v between N-E. I did basic tests on the fittings (continuity, ir, etc) - all ok. main earth and everything else ok. Checked the light nearest the...
  15. M

    Reverse polarity when PV inverter switched on!?

    Hi all Very strange situation this evening. I installed a PV system around a year ago and has been working fine. Called out today as the generation meter had stopped increasing. Customers been away and only arrived back today. Western Power have recently put up a new pole in the customers...
  16. T

    Electrician Jobs Full time Electricans and Plumbers wanted in Jersey

    Full time qualified electricians and plumbers wanted in Jersey. Driving License required. Rates between £16-20 per hour. Full time contracts.
    • TechoJoe
    • Thread
    • between contracts full time plumbers qualified required time wanted
    • Replies: 7
    • Forum: Electricians Jobs
  17. G

    Problem neutrals

    Problem with neutral. The other day we had a problem with a circuit not working correctly. The circuit is a radial,wired in 4mm singles,in metal trunking powering 4 switched fused Spurs. The circuit had previously been dead tested,with no apparent problems. However when the circuit was...
  18. Karin

    Potential Difference Between Neutral And Earth

    evening guys, i think i'm gonna need this one spelled out to me a little if anyone can help. everytime i think i've worked it out i just start to doubt myself and go in circles! double pole isolation is required for TT but not TN systems where neutral can be said to be reliably connected to...
  19. J

    240v Between Live And Plasterboard Wall

    came across a strange one today. Had a 3 core cable to a gas boiler and there was a fault on the boiler so when tested got 145v across the live and switch wire. Disconnected the switch wire at one end and still got 145v. Thought bad insulation so replaced cable. Still there ! Touched the end it...
  20. P

    AM2 - anyone recently done it?

    Hey all, Well ive just booked my AM2 but i have to say i'm pretty nervous about now lol. Has anyone recently done it, how did you find it? I think my main concern is the solar element in the heating plan, as not sure what to expect there and probably the fault finding as ive not done much...
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