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loop

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  1. S

    TT Ze reading- loop high or loop no trip?

    When measuring Ze on a TT that's RCD protected which is more accurate? Getting 27.1 on high current but 563 on no trip.
  2. Gary Tollison

    earth fault loop impedance

    Hello :) I'm confused about EFLI which I am guessing should be relatively straight-forward. I can't get my tired brain to figure out how to calculate the value for EFLI on system-side circuits? eg: what should the actual calculated value be for a 40A circuit, and how do I get that figure...
  3. Pete999

    Pete's Videos Earth loop impedance whats that then?

  4. N

    Earth loop meter required

    Can someone help me find a particular type of earth loop meter that I used to use years ago. It was the type that had a earth wander lead and probe. You plug in the meter to a socket, then touch the probe to the casing of the fixed appliance, you get an ELI reading I'm no longer a part P...
  5. R

    >2000 ohms on loop test?

    Hi guys, Was wondering if anyone could shed any light on why I would be getting >2000 ohms on my loop tests, on every circuit? I got .26 on the incoming reading, went to do the test on the cooker circuit and >2000, thought I'd try back at the consumer on the incoming and >2000 again, I'm using...
  6. Pete999

    Pete's Videos Earth Fault Loop Impedance, who needs it?

  7. B

    Domestic socket loop test puzzle.

    Hi, I don't know if anyone can help with this. A customer called me out saying that a British Gas boiler service had highlighted a socket showing >2000 on the EFLI test. I went to look and got 1.12 on one side of the (two gang) socket and >2000 on the other. I assumed it was a dodgy socket and...
  8. N

    Loop In/Out connections in light fitting

    I often come across bathroom lights or similar with the loop in/out connections brought into the light enclosure and connected using choc blocks (or in some cases just twisted and taped!). I rarely see heat resistant sleeving used, although I sometimes do. My question is, to be fully compliant...
  9. J

    Ceiling rose wiring

    Hi. I've been trying to change an overhead light and run into some confusion regards the wiring and I wondered if someone could advise please. I've currently got over my confusion by doing a like for like swap of the pendant, wiring the new light into the old ceiling rose terminals. I would...
  10. dogsknob

    Homemade loop checkbox

    Hi to all, This is my first post, I thought I aught to contribute as I often dip in for the wealth of information and interesting debate, please excuse me if this is in the wrong place or already been done. I had a hour or 2 spare so with a handfull of bits from the van I've put together a...
  11. happysteve

    Kewtech 106 And 107 Loop Tester

    happysteve submitted a new resource: Kewtech 106 and 107 loop tester - Plug-in socket tester, brief manual Read more about this resource...
  12. W

    Earth Loop / Dimmer

    Had a strange one today, would appreciate folks take on it. I'm probably missing something obvious!! Installing some downlights via metal dimmer switch. Earth loop impedance was 50 ohms at last light!, at switch it was about 1.5 ohms. Dimmer fully up, voltage at light around 230 . Bypass...
  13. A

    Very high earth loop readings

    Was out doing some defect repairs on a system with a few high earth loop readings. I had previously been on site and tested the circuits with the high readings. For one of the circuits I had a reading of 1.28 ohms for a C50 t/p mcb it was rather high. So the idea was to remove the mcb and...
  14. M

    Earth fault loop path

    Hi.....first of all I'd like to say thank you for allowing me to join the forum.....I'm a third year student and have giving a task of drawing a EARTH FAULTLOOP PATH FOR A COOKER CIRCUIT in a house. I'm stuck on the cooker circuit part....please please help. Cheers Mike
  15. H

    Automatic Swing Gate with Induction Loop

    Morning all, Fitting an automatic swing gate with induction loop tomorrow (with my uncle). My uncle knows what he's doing but this would be a first for me, just doing a bit of research today so I at least know what I'm looking at tomorrow. The device is by Roger although I couldn't tell you...
  16. T

    Fire Alarm Addressable Loop Testers for sale

    1 x Hochiki & 1 x Apollo Fire alarm loop testers for sale Hochiki Loop tested in excellent condition and well serviced by Hochiki, last service 1 new loop driver & batteries replaced. Will test and program all ESP devices including new EN Comes in case with all leads and charger Apollo Loop...
  17. N

    High earth loop impedance

    Hello all, I am studying to be an electrician but outside of the classroom I have little experience. A friend has bought a house and during the buying process had an eicr with unsatisfactory result. Reading the report it shows the ring and shower circuit to have high earth loop impedance. I...
  18. gazdkw82

    Earth fault loop impedance

    Iv been given the scenario: 6 circuit earth fault loop impedance values were recorded. Each circuit has type B cb. referring to the maximum values, show by calculation if these values are acceptable. so I can't do zs =ze+R1/R2 because they've not provided me with ze. doing some research it...
  19. sjhall

    Megger MTK320 Electrical Test Kit: MIT320 Insulation + LTW325 Loop + RCDT320

    Here we have a compete Megger 320 kit including all cables. Kit is in excellent working condition and was regularly calibrated and checked up until June last year when the calibration expired. I've not shopped around for calibration quotes but I paid from £70 to 90. . Rather than the...
  20. P

    Earth Loop too High

    Hi there Guys I am new to the UK and have just a quick question. When your earth loop reading I too high in the UK, can you proceed to do an earth/neutral bond before the consumer main switch or do you have to contact the applicable power utility company?

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