fault

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  1. P

    Socket tester showing fault

    Hi, So I noticed a burned out socket, the wires also pretty burned, and back of socket was also, I replaced with a new socket. Put a socket tester on and it was showing a E fault on pretty much all down stairs sockets. BUT soons I put the oven plug back into its socket the socket tester then...
  2. C

    MV Fault Loop

    I've been thinking, do disconnection times apply to MV? Say a fault occurs on the MV system. This would result in 3kv from the MV neutral to remote earth. In theory this voltage would end up on the LV neutral, enter the structure, cross over to the MET in a TN-C-S supply and then energize all...
  3. I

    Tips for Intermittent Fault Finding

    Good evening! Majority of the work I've done over the past 10 year or so has been new build full rewires and rewires of existing premises and because of this there are very rarely any faults to be found when carrying out the testing of the installations. In a very short space of time, I've had...
  4. Michaelp

    Megger MFT1721 FUS fault code

    Today i had the megger dropped from a meter height and is now showing the FUS code. Checked the fuses, Both are good. Contacts look very good. New batteries installed but still get the same code. I did the reset just in case but no results. This Megger is not in the warranty, is quite old and...
  5. W

    Immersor stat fault

    Thermal cut out kept going on immersor stat so changed the stat over, now the new one keeps having the same issue. Any ideas on what it could be?? Could be another faulty stat but I highly doubt that
  6. A

    Hotpoint Oven SA2 540 HIX with Clock Fault and F12 Fault

    I have a Hotpoint SA2 540 HIX with possibly 2 faults The clock keeps going to reset mode and the display sometimes shows F12 The F12 clears if I turn the oven On then Off again. The clock reset is an annoyance, however if I have Auto On set it will cancel it out. Any Ideas?
  7. J

    Prospective fault at the end of circuits

    Does anyone perform a prospective short circuit and, where no RCD / RCCBO, a prospective Fault Current test on the end of circuits on inspection and tests? I get we do ZS, but how do we know that the CPC or Line conductors are man enough for fault currents of X duration? S2K2 => I2 T? Cheers...
  8. littlespark

    Something wrong.. can’t trace fault

    Went to look at this shower today. Customer says it’s not heating up. Tried everything, and I can’t find the problem...... Can anyone suggest what could be wrong?? ?????????? Had you going there, didn’t I. elderly customers very happy with me going out on a Saturday to replace this...
  9. J

    Overcurrent fault tripped two MCBs

    So customer reporting she plugged in a faulty LED light and it tripped both upstairs and downstairs lighting MCBs indicating that the circuits are connected (the board has no RCDs - yet). Before I go and do a CU change to RCBOs I need to identify the source of this fault. I'm interested to hear...
  10. H

    RCD FAULT

    Hello, I’ve just been to a job and their RCD has it’s moments and trips throughout the day but doesn’t on other days. When I was there I tested all appliances and put everything on but couldn’t get it to trip. Very weird. I noticed the test button on the RCD wasn’t working AND was getting...
  11. G

    New Home Construction with Tripping Arc Fault Breakers

    Greetings All: I am new to this forum and hope I am in the correct sub-group. We are nearly completed with our new home construction...just a couple weeks from moving in. The 200Amp service panel has 4, sometimes 5 arc fault breakers that repeatedly trip at random times. There are NO...
  12. M

    Intermittent socket fault

    I'm having a very strange issue with some sockets. They're in my garage and are running from a 13amp switched fused spur off a 30amp radial circuit. There are 4 double sockets and appeared to be working fine. Then suddenly they stopped, no breaker went on the consumer unit so I assumed the fuse...
  13. wsoppitt

    What sequence to identify intermittent fault causing rcd to trip .

    Guys / Girls. How do you tackle an intermittant fault that only occurs once or twice every few weeks. What is the sequence you would use to identify and locate the issue.
  14. W

    Arc Fault Detection going global ...

    Well I ventured out into the kungflu today and one of the other items picked up was Professional Electrician for December. So I’m having a cuppa and reading, as I do. The article on p33 is about Amendment 2 to the 18th Edition. All good so far. Then I read that they are proposing all socket...
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