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likely

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  1. P

    High Zs Reading on Megger MFT 1552

    Can somebody help me please? I'm just finishing a rewire, and I've installed a GF radial cicuit in a large domestic property and am in the process of testing it. It's a new radial circuit, 2.5 T&E, 13 sockets, 20A type B breaker on an RCD protected board. My R1&R2 = 1.40 and Ze = 0.20, so my...
  2. D

    Why checking that the circuit is dead is so important.

    I was given a job to rewire a portacabins sockets, straight forward job replace 2.5mm2 twin+cpc radial with 4mm2. As always follow safe isolation procedure, other electrician I am working with says 'why are you wasting your time doing that?'. I test the socket under the ccu and its still live...
  3. P

    what is the Most likely fault reason for Transient overvoltage on the supply?

    hi guys, could you give me some help to see if im on the right track with this questions: what is the Most likely fault reason for Transient overvoltage on the supply? I was going to say they are usually caused by electromagnetic induction when switching on or off inductive loads (such as...
  4. P

    what is the MOST likely cause of high resistance when testing continuity of cpc

    hi guys, what is the MOST likely cause of high resistance when testing continuity of cpc? I know likely reasons could be loose terminations, bad terminations (e.g not all wiring strands in connection), dirty connectings, ect But what would you say is the MOST likely reason for the high...
  5. H

    Megger 1720

    Right think I have enough of this machine thinking very hard and long about going back to Fluke. Can anyone tell me a reason for me getting a calculated Zs: Ze+(R1+R2) of 0.68ohms then getting a measured Zs of 0.94ohms which is considerable higher than my calculated Zs, now I know it still...
  6. M

    Is this likely to be a problem?

    Well folks, I have my annual assessment booked for march, and next week I intend to cancel it. I also haven't renewed my REALmembership (I was waiting to see what happened with the DECC announcement) I have an install booked for a weeks time. Is it likely to be a problem that I don't have REAL...
  7. H

    Warranty and Insurance for systems

    We're hoping to provide a good, reasonable cost PV system. How do we cover a panel failure? Yes it's covered by the manufacturer for how ever many years. So yes, we can get a panel under warranty but erecting scaffold, locating the faulty panel and then installing the replacement will probably...
  8. Rockingit

    Anyone know the (likely) tightest bend radius for 25/3 SWA?

    Title says it all, really! Any contributions welcome, it's the usual trick of quarts and pint pots.......
  9. S

    3 phase supply + 3 seperate ground mounted systems = 3 systems (3 FiTs)

    We have a customer that wants three seperate ground mounted systems. It is a farm which has a three phase supply with each phase supplying a seperate dwelling. With it being a farm the it is only on one set of deeds. The set up is that the father lives in the main farm house with his sons...
  10. G

    Customer finance

    As a new MCS company trying to get work we have just had a meeting with a finance company rep offering us a 2 year contract to put a link on our website to give customers the option of paying for a system on finance in return they will then give us 1% of the total finance the customer has signed...
  11. H

    am I likely to get a job if I do these 2 courses I know it must be hard in the curren

    Hi V New to this forum am I likely to get a job if I do these 2 courses I know it must be hard in the current climatea what are the chances of getting a job I live in Halstead North essex: 2393 Building Regs for Electrical Installation in Dwellings PART P 2382-10 - 17th Edition Course I am...
  12. B

    Heating help Rointe heaters any good???

    Hello.Heating my flat (1bed) is becoming too expensive with the old heaters I have,and I think I need to replace them.I have heard of these Rointe heaters and the manufactors claims they are supposed to be the best on the market,but I dont know if the claims about them are true.They are very...
  13. D

    Joining Napit....Help

    Setting up my own firm, was wondering what sort of money its going to cost to join NAPIT. Just had a short conversation with one of their phone operatives who couldn't give me a quote of how much it's likely to cost. She just said it depends, we'll send you an information pack out. Basically...
  14. C

    Washing Machine Tripping RCD??

    Hi all, My brother has not long called me and has informed me that the washing machine keeps tripping the RCD. Just wondered the inspection procedure to narrow down the actuall fault? Any info would be much appreciated. Chris
  15. H

    Generator for Santa ?

    If we use a small generator to power existing (fitted in 1940's) chrissy lights on a made up sleigh onto which children will be stepping in order to collect their Santa sweeties, we will be earthing the chassis and using a ground spike to ensure there is no potential difference between the mass...
  16. D

    LED and electronic transformers

    Subcategory - Lighting Hi, I have recently been experimenting with LED replacements for halogen 12 volt downlights. The instruction state NOT to be used with an electronic 12 v transformer, however I find they work very well using an electronic transformer if the load is sufficient, (ie...
  17. M

    JIB Electrotechnical Certification Scheme (ECS) Likely JIB grade?

    Hi, I'm hoping someone could give me an idea of what JIB grade I'm likely to be? So far I've completed: - 2330 L2 - AM2 - NVQ (studying 2330 L3) - Have one years experience as mate. Any help will be much appreciated! Cheers, Mark
  18. B

    Is it likely to be a light ring circuit?

    In the process of changing a CU Ive discovered the lighting circuits are using 2x 1mm Twin and Earth though Iv not invetigated fully at this time is this likely to be a ring light circuit, if so is this common and how should this circuit be tested??? If not is it likely to be a radial using 2x...
  19. C

    Motors and Generators

    Could anyone tell me where I might find a reference or guide for trouble shooting AC and DC motors and generators.I'm looking for some type of checklist. Someone told me that years ago they saw one that listed the most likely problem" if the motor is doing this, then these would be the most...

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