Search results

Talk Electrician Forum

Help Support Talk Electrician Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
  1. apprentice87

    Short in socket - baffled

    You need to separate all the wires and work out exactly what is what now. IR testing too. john..
  2. apprentice87

    Upgrading home service from 60Amp to 100Amp

    The currently used DNO service cables are either 25 or 35mm CNE "hybrid" cables. The inner core is aluminium, just under 7mm DIAMETER, and the entire cable outer diameter is about 1/2" diameter.. [for a 25mm] the 35mm being slightly more.. Here are the single phase and three phase versions. john.
  3. apprentice87

    Upgrading home service from 60Amp to 100Amp

    It is 35mm2 cross sectional AREA. NOT NOT NOT the diameter of the cable... john..
  4. apprentice87

    Electric mains meter puzzle

    Whwn i went to see them, after the shitty attitude they decided to fit a new meter. The only person to have a meter change after about 3 days. [It was on 21 units by then.. john..
  5. apprentice87

    Electric mains meter puzzle

    Definitely reverse energy detection. I think they have given up on that now as the things used to flag this up all the time for no reason. [A meter reader told me] I had a new supply put in and the thing flagged it up after about one day. I went to see them and a right snotty prick informed me...
  6. apprentice87

    How to become a trade electrician

    Hi There, Even after you get this sorted, stick around. You write really well and i am SURE that i am not the only one that would like to see you stick around on the forum... john..
  7. apprentice87

    Help needed with issue discovered

    Why is L2 connected to the earth bar???? You need to isolate the ENTIRE installation NOW, and get a proper electrician in. You have already posted this on a public forum and if the HSE get involved you will be having huge fines and or jail. The choice is yours. Nobody on here is going to...
  8. apprentice87

    RFI From Inverter

    Years ago, the GPO would have put a dead stop to it.. john..
  9. apprentice87

    RFI From Inverter

    Could you not take all your findings to the british standards people and explain that the requirements need to be changed?? What about trading standards?? Mind you, they seem to only be interested in the little man, childish things like people selling fake cd's at car boot sales. In my own...
  10. apprentice87

    RFI From Inverter

    How are they able to import and sell the chinese crap if it does not comply with whatever "anti EMF" regs there are?? Does not "CE" marking indicate [or be supposed to indicate] that the stuff does comply with whatever regs?? john..
  11. apprentice87

    Plastic gas pipe to buried metal pipe...

    Hi there. I followed the link you provided and it is telling you total crap.. That calculation is totally wrong. When testing to see if a part is "extraneous" and hence needs bonding, you measure the resistance between the part and the MET as they describe, BUT, the MINIMUM reading is...
  12. apprentice87

    Am I expected to be competant in Extractor fan installs as a bs7671 electrician?

    I have a Hitachi one and mine certainly has. john..
  13. apprentice87

    RFI From Inverter

    What about this??
  14. apprentice87

    RFI From Inverter

    Shameful you should have to do all this... john...
  15. apprentice87

    Transformer welder: my puzzle

    Plasma cutting is what you want to worry about. My own Lincoln PC65 will cut 18mm plate with a current of 65A at a voltage of 106V. The open circuit voltage is a lethal 540V made even worse as you have HF start at about 10,000V.. john..
  16. apprentice87

    Transformer welder: my puzzle

    Hi Poni, The actual arc voltage when you are welding will be around the 18 to 40 volt mark, but the open circuit voltage will be a minimum 50V, but in the real world anything less than 80V, makes the set horrible to use, so that is the norm.. Pipe welding you want a good 90V due to the type of...
  17. apprentice87

    Transformer welder: my puzzle

    In theory.... In practice you will find a few [old] AC machines with an OCV of about 90v [so peaks of 127v] or even 100V OCV Very many DC machines have an OCV of 90V too. They will shock you ok!! This is why what everyone calls the "welding earth cable" is not, it is the "welding return...
  18. apprentice87

    Transformer welder: my puzzle

    Ok, a bit of a question from me!! How is it that the secondary windings of a welder are separate from the primary ones, AND, apart from the welders designed by "experts" many years ago, the secondary is not connected to the case of the machine in any way. [It is not earthed] So, the secondary...
  19. apprentice87

    Tuya circuit breaker

    Hey, come on.. He is trying to do the best thing or he would not be on here asking. It might be a class 2 appliance for all we know. I do think that it wants more looking into. Perhaps if Antek was to tell us exactly what sort of vending machine it is, make and model.. john..
  20. apprentice87

    RFI From Inverter

    Well, they ARE to blame as it is them emitting the interference. Be the same as if i decided to heat my house by burning car tyres and then claimed it was not me making the smoke. They are causing a public nuisance. Public nuisance is now a CRIMINAL offence... Read this adn hope it helps...
Top