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  1. M

    Connection between copper and titanium

    Hello, I am currently investigating how to connect copper busbars or cables to a titatium busbar on a DC voltage system. What are the requirements/standards?
  2. KeenPensioner

    110 V between L and CPC

    I am in training and decided to do some dead tests using my second hand Fluke MFT 1653B on an upstairs ring. I did the tests at a socket rather than at the CU. Results end to end L - L 0.74 ohms, end to end N-N 0.76 ohms, end to end cpc >2000 ohms. I checked all the sockets on the ring and...
  3. I

    Voltage Fluctuating between 170V and 330V

    Hi, I`ve been to a site today and noticed some units I`ve got have huge voltage drops. Voltage was fluctuating between 170V and 280V and on some units, I`ve had 330V. I went to the DB board: Between live and earth some circuits were showing 217V and other one were showing 270V. Between Neutral...
  4. A

    I did a VLF and IR test on my 33kv cable and IR resulted between 80 to 100Mega Ohms

    I did a VLF and IR test on my 33kv cable and IR resulted between 80 to 100Mega Ohms on all the phases and VLF between 0.270 to 0.470mA is the cable ok
  5. W

    Testing voltage between ignition and solenoid

    I'm trying to test if there's voltage between my ignition and the solenoid. The starter won't crank or click so figured I'd start here but am not sure if I'm doing this correctly. I have a male/female connector from the ignition to the solenoid. I disconnected this, connected a probe to the...
  6. Spoon

    Minimum distance between electrical enclosures

    Hi people, I'm having a brain fart moment. What is the minimum distance between enclosures, with doors that are facing each other? In EN60204-1:2006+A1:2009 section 11.5 said " In the case where such parts are present on both sides on the access way, the clear width shall be at least 1.5 m."...
  7. 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?
  8. dokkan1080

    Continuity between lives

    I think i might of asked this before but Here goes again, on my flat cu with the mcbs off if I use my voltage tester between a lighting circuit and socket radial I get continuity? Why is that? But of I power up one mcb the others don't get powered up.
  9. N

    rewire choosing between 2 unregistered firms to do the job

    Hello thanks for reading - I am having a 3 bed semi rewired and narrowed it down to 2 electricians. Both a not on any register as far as I can see. One will do the work in 3 days (3 people doing long days) and get it signed off under the Third Party Certification scheme The other says he...
  10. E

    Can I use H-Tap Compression connectors between main and sub panels?

    Hello all, I am new to this forum and had a question about installing a new panel. The previous owner had installed an Aluminum 3/0 2 AWG cable from main panel to the garage. I would like to install a 100 amp panel in my garage to add additional circuits for my house to install near my garage...
  11. 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...
  12. dokkan1080

    Continuity between live conductors

    On my cu at home I have a continuity reading between my ring final circuit and a radial circuit of 114ohms between live conductors. When I test continuity from each breaker. Why would that be? Break down of cable If I turn one off and leave the other on I don't get a voltage. At what point...
  13. S

    T&E between light switches, what are my options?

    Hey, my downstairs hallway light switch is a 2 gang but doesn't control my upstairs hallway light (and just a 1 way for the upstairs light). After inspecting, there is unconnected T&E thats runs to the upstairs light from the downstairs 2 gang switch. Now I know that can't be used as a 3 core...
  14. 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?
  15. E

    Jumper between two different receptacles.

    I am finishing my basement. Come across something I didn't see before. I have two different receptacles in my basement and each one has its own breaker at the breaker box. And there is cable running between these two receptacles. I would love to learn why there is a cable running between these...
  16. J

    UK Continuity Between Line and Earth

    Just tested the end to end resistance on a ring main at a socket outlet. Readings are spot on however when changing the crocodile clips I notice that I have around 600ohms of resistance between the Line and Earth conductors. The system is TT. What could be the cause of this?
  17. K

    180v between live/neutral but 240 between live/earth

    Hi all Downstairs lighting circuit isn’t working so tested voltage at each fitting and getting 180 live-neutral and 240 live-earth. Have checked continuity from board to each fitting and got a neutral all the way around the circuit so I’m a bit stumped on what the issue can be. There is access...
  18. Abbywho

    Anyone know the difference between a red and green wire, besides the fact that red is more dangerous?

    Does anyone know the differences between a ref and green wire?
  19. K

    UK Voltage between gas bond to neutral

    So up until this morning I thought I had seen most faults in an electrical installation, but this one today has me stumped and I’m not sure if I’m being stupid and the issue is staring me right in the face! long story short we went to a domestic property with a TNCS to install a supply to a...
  20. A

    Are LED bulbs better than CLF bulbs?

    Recently, I have decided to switch to LED lighting instead of any other old school lighting. Our government has taken the initiative of replacing old lights with energy-efficient LED bulbs. But there is still a debate about which lighting option is better, is it LED or CLF. Give me your...

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