fluctuating

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  1. 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...
  2. E

    Cycling Voltage on light fixture

    I have a fan light fixture which I wired more than a year ago. It has three dimmable LED light bulbs on the bottom which recently started exhibiting strange behavior. Last week the lights started dimming and brightening on a regular cycle, roughly every 5 seconds. The lights will start our...
  3. A

    Intermittent fluctuating voltage

    We have a problem in my daughter’s new build house (2 years old). She noticed the problem started 2 weeks ago when her lights would flicker at random. The lights can be ceiling lights and table lamps so it’s affecting the lighting circuit and sockets both downstairs and upstairs. I have...
  4. B

    fluctuating resistants reading megger met 1710

    Hello I'm getting fluctuating resistants readings when using a megger mft 1710 meter, Does anyone know whats causing this / how to mend it. Ive tried taking it apart to have a look inside but can't even take it apart does anyone know how too (ps its not the same as the older testers)
  5. Gavin John Hyde

    fluctuating readings on a tt rod

    Been at a rural cottage today doing a pre install survey for a EV charger, House is 400 and something years old and situated on a hill with lots of rocky ground, mainly limestone based rocks. Owner tells me the rod is in his own words ' two joined together to make a long one' as he helped bang...
  6. S

    Electric shower temperature fluctuating

    Hi all plumber here... My customer complained about fluctuating temperature at the electric shower so I removed the said shower and replaced with a new one. They still have the problem, and a neighbour has suggested it may be "something to do with the fuse box" Is it possible that this could be...
  7. NDG Elecs

    Fluctuating IR reading.

    Hi One and All. Fault finding today. Narrowed it down to one leg of RFC between N&CPC. What puzzled me was the fluctuation in the IR test. Normally I find the reading stabilises after a short period (5-20 seconds). Today the reading was constantly jumping between 20Mohms with an occasional...
  8. T

    Fluctuating voltage on a lighting circuit - advice please!

    Evening all. I got called out to investigate a problem with a two-way switch on a landing light and I was expecting to find a DIY bodge with incorrectly wired 3-core. However, it was more interesting than that! Customer reported that when the light was off, after 5-10 minutes it would briefly...
    • The General
    • Thread
    • advice circuit fluctuating lighting lighting circuit please voltage volts
    • Replies: 26
    • Forum: Industrial Electricians' Talk
  9. D

    Fluctuating eli

    Right As the title really we got called to a local authority's central depot to look at a fault on a cable we sorted that but when testing after the repair I was getting a varying Eli between 0.05 up to 0.89 bu as there is a ups I thought that may have something to do with it so after speaking...
  10. J

    fluctuating IR readings

    i have completly forgot what this means some one give me a hint lol my mind has gone blank
  11. S

    Fluctuating voltage!

    Hi I hope this makes sense. Went to look at a job a few days ago, did a quick test on the incomer of a 3 phase supply TNC-S system (seperate from the main consumer board) got a Ze of 0.19, all good, went to test the seperate consumer board & got a Ze of 0.33 & a Zs at a few RCBO protected...
    • sparks72
    • Thread
    • aus earth fluctuating incomer property seperate voltage volts
    • Replies: 9
    • Forum: Australia

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