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  1. telectrix

    Max. Zs--- useful (maybe) tip

    stuck on site without OSG? want to know the max, Zs for a certain MCB? multiply the MCB rated current by 5, then divide into 230 = max. Zs. ( uncorrected) That is for 60898 type B. for C use x10, for D use x20. then x 0.8 for corrected value. e.g. 60898 type C , 16A ........ 230/(16 x...
  2. D

    2.5mm used for lighting circuit.....

    Hello chaps Did a visual safety check at a house today. All seems ok, except for the lighting circuit. Who ever installed/re-wired the system has used 2.5mm cable.....to me it seems a bit overkill, but could this be used to try and cover an issue that its previously had. Is this ok? Not...
  3. A

    Elecsa registration

    Hi all, just to let you know, I passed my assessment today with Elecsa. Nice chap, asked sensible questions and did not try to catch me out with trick questions. Somewhat relieved, after 2 years of trying to get a job in the industry, I can now work for myself, just have to find the work...
  4. N

    NICEIC Certification Scheme sub contractor joining niceic

    hi one of the gangs of sparks on site were working on are going for there part p. we are with elecsa they asked us who was best to join and what one has the most relaxed/easy on site asseament were all for elecsa but just wondered what everyone else thought??
  5. sythai

    large grommet..... maybe ?

    Evening all.... Just seeing if anyone has got any suggestions... Got a first fix to do and part of it is the containment for the hdmi leads from TV on wall down to unit below.... going in behind the wall... if that makes sense. Was going to stick a short length of 2" waste pipe in with a...
  6. L

    Last chance!! - well maybe one more if unable to sell :-)

    For sale 2 books from Unite red Electrical book The Electricians guide to Good electrical practice And the yellow one Electricians guide to inspection and testing Both unread and both for the incredible price of ....Wait for it.....I'm not asking £12 ...only £10 for the both!!! Yes you...
  7. kevyn

    Garage Office heating solutions

    Hi all, Got a job this morning doing an office within a garage/store. Main problem is keeping the damp out as the guy is putting his computer in there. He has partitioned off part off the garage and insulated it with kingspan. I was thinking along the lines of a tubular heater running of a...
  8. S

    Power shower query

    Hi everyone, just a quick question to answer if possible. On my way home this evening, I got a call from a customer who said their power shower was not working. I quickly passed by ( as its my little boys birthday and have guests round BBq etc etc ). I looked in the cupboard and I saw a...
  9. D

    Sorry your customers got no earth, Call back later

    Had a customer today with no earth, TNS The part of the clamp which the cable connects to had come away. Phoned EDF finally got to speak to someone who then transferred me to a recorded message that said... "I'm sorry we are unable to help you at this time please phone back at a later date"...
  10. B

    got a fault

    got a fault rcd tripped reset it, sockets tripping it stays on for about 5 to 8 hours then trips again any ideas going to look at it monday??
  11. L

    rcd probs

    recently went to a client house to investigate a trip main switch rcd. on getting the the client had already reset and everything was working just fine , 4 week later and go another call saying this time it had tripped through the night whilst everyone was sleeping . now ive tested rcd on both...
  12. S

    Public Awareness or not as the case maybe.

    I have read and posted various comments recently regarding bending the rules and regulations. I find it extremely annoying that the IEE change the regulations on a whim and we all have to tow the line. I am the first to admit that the safer things get for the end user then the better and i...
  13. D

    Trying to find a relay

    Hi, I'm trying to source a relay to replace one on a PCB board. The relay in question is a Tianbo HJQ-13F-2Z but I can't find any UK suppliers online. Does anyone know of a supplier or an alternative relay I could use? The relay is rated at 10A 240VAC 30VDC. Thanks Dorian
  14. L

    timeclock for heating mystery

    Was at clients house today testing an rcd when women ask if i could help her??? problem was she had a central heating time clock (drayton) and she finds her selfg oing through one a year she claims that after a certain length of time the auto function doesnt work and has to operate switch...
  15. S

    ELECSA Certification Scheme Design calculations and elecsa assemssment

    Hi All, I have my Elecsa assessment tomorow at 9am and was just looking through the requirements and it mentions about Design record keeping in the guide to conformances. Will the inspector need to see design calculations for my install and what is the best way of presenting this. Any help...
  16. A

    Tripping RCD

    Hi All My customer has just called to say her RCD main switch trips when the washing machine is on - only happens with the W/M and when it is approaching the spin cycle. Machine is 3 years old but has just been moved from her old house - no problems with it at the old house. Is it likely to be...
  17. A

    neutral earth fault split load cu

    been working with another spark today on a job where the rcd keeps tripping intermittentley all legs clear >299Mohms. Lighting is on non rcd side all clear apart from 1 c/ct down to 0.49Mohms the other spark reckons this was taking the rcd out i disagreed and just wanted some1 else to tell me...
  18. S

    Code 2 for "INSUFFICIENT SOCKETS FOR MODERN DAY LIVING"

    Hi everyone, I was emailed a job today, with a PIR attached. What I couldn't belive is that a ELECSA registed Electrician had written down as an observation. "INSUFFICIENT SOCKETS FOR MODERN DAY LIVING" Code 2 Any thoughts?? Andy
  19. M

    0.00ohms,looptest at board.

    hi,folks can anyone tell me why i get a loop value of 0.00 ohms at the supply to a sub dist board (incommer)but when i loop test at the sockets off the board i get what's expected 0.34 and so on. appreciate your knowlege guy's thanks mazo.:)
  20. S

    light switches in bathrooms -

    17th says that a lightswitch can be 0.6M from the bath/shower edge as long as it is suitable for its position. - Have any of you heard of anyone getting a shock from a light switch with wet hands?? The Switch is existing and obviously best to fit a pull switch ,- but customer knows not to touch...

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