readings

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  1. E

    Continuity Issues on Meggers

    1720s across the company have developed ****loads of continuity issues over the last couple of years, mine (6-8 months old) has started recently, continuity jumping all over the place etc. Now, mine was functioning perfectly on a job a couple of days ago, in a sheltered place which was like a...
  2. S

    readings?

    Good day. I have recently been involved in an EICR on a property with 15 DB's. The average PFC appears as 90A and the average Ze is 2.9 The system is TN-S I suspect there is an earth fault somewhere which would explain the Ze but why the PFC reading? Each DB is isolated by a BS88 80A or 100A...
  3. S

    How to work out average earth electrode value

    Hi guys, im doing revision for 2394 and got a question on getting the average ohms value for an earth electrode test. the readings obtained were 179,181 and 185ohms and they asked for the average. i have checked GN3 but it ain't clear. can anyone give me a method of how to work this out. cheers.
    • Sb8389
    • Thread
    • average cheers earth electrical work electrode out question readings value
    • Replies: 2
    • Forum: UK Electrical Forum
  4. M

    Reviewing test sheets

    Good evening all ! I've been reviewing test sheets lately off sub contracting electricians not in a official capacity as of yet and there are a few items I have noted but would like peoples thoughts. 1. Cooker wired in 6.0 T+E Ref method 101 32a Rcbo surely a Code 2 but no mention in test...
  5. B

    high readings (maybe)

    hi all just to let you know im still training as a spark after the last course i did turned out to be a piece of s**t with not much practical and today i was on a job with my uncle whos my mentor and we got a zs reading from a number of sockets of 106 ohms and when i questioned it i was...
  6. H

    Weird readings!

    Hi I was testing a ring circuit and got some weird r1 r2 readings and just wondered if any one could shed a bit of light as to why as I am a bit puzzled. It is a periodic test! 13 sockets on ring one of which is spur, 2.5 / 1.0 twin and earth! end to ends done at socket as board a bit messy! r1...
  7. N

    0.00 ohms r1+r2 on radial circuit?

    Hi all, I've tested several radial circuits and only getting 0.00 ohms on the r+r2 test (zero'd leads) 2 of the radials only supplies one socket each and are approx. 3 metres in total length. (zs 0.25 and 0.21) Another radial only supplies one socket and is appox. 5m in length. (zs 0.35) The...
  8. S

    Continuity readings unstable using Megger MFT 1730

    Has anyone experienced issues with continuity readings fluctuating on a Megger 1730 MFT when the test leads rotate/move in the instrument as is the unavoidable condition when actually using the tester? I can null the leads but thereafter the reading with the leads connected to each other can...
    • Sting Ray
    • Thread
    • continuity instrument issue leads megger mft readings using
    • Replies: 11
    • Forum: UK Electrical Forum
  9. D

    suspected faulty 6.6kva transformer

    I think I have a faulty 66kva transformer but have little to no experience with them (delta star I believe) Call out due to reported problems from some of the tenants (offices that are rented within part of the building) some RCD protected ring final circuits disconnecting. Investigated at the...
  10. S

    Funny readings continuity of protective conductors

    I'm doing an continuity test on a lighting circuit and I'm getting funny readings I'm putting on test lead on earth and one on switch live then I'm getting a reading of around 1.4 ohms but then when I'm checking the polarity it's shooting up to around 93 ohms but not breaking the circuit as you...
  11. T

    Strange readings when connecting up wall light

    So I'm doing a job and when connecting up a wall light to a single 1.5mm T+E it does not work, there is another wall light that is connected up to another single T+E cable, however this 9one does work. when testing the cable coming out of the wall when connected into a connector block with no...
    • Tomparry94
    • Thread
    • connecting light readings strange wall
    • Replies: 25
    • Forum: UK Electrical Forum
  12. M

    Insualtuion Resistance - individual circuits V bank of MCBs & RCD readings

    Tested each of 9 new circuits in usual way of L.O.C. and IR, all in theory ok ... CCU is a Hagar split-load dual RCD. 1-4 on RCD1 / 5 - 9 on RCD2 Aware that no requirement for "collective" IR on EIC, just individual circuits. When tested from the outgoing L of the RCD2 to MCB busbar (all...
  13. spud1

    High Earth Fault Loop Impedance readings caused by RCDs

    Hi everybody, I have encountered a problem with EFL (Zs) testing a couple of times recently. I have had unusually high readings for the length of circuit and earthing system type and the increase in impedance seems to be coming from resistance across the line pole of the RCD in the consumer...
  14. N

    High end to end values plus three cables in one circuit

    Hi guys A little advice here would be much appreciated , it's been a long head ache day! Had a ring circuit in a house today with high readings end to end on all three , they where in there 40s , 50s and 60s but got a good r1 + r2 and a good Zs , is this normal to be able to have high end to...
  15. L

    fluke 1652c continuity readings

    Does anyone else have problems with there continuity readings my readings never seem to be stable for example a newly installed ring end to end resistance on neutral and line ill get .46 and then a reading of .04 on line end to end the leads are always nulled and I even check readings on calcard...
  16. M

    Ze Zs and R1&R2 readings of 0.00 ohms.

    A measured test shows a reading of 0.00 ohms. I have always when got this reading recorded it as 0.00 ohms on any test results sheet. As I have always believed it is a reading and must be recorded as such, I have also seen it written somewhere in either the NiCEiC Inspection and Testing Book or...
  17. J

    Megger 1730 erratic readings

    I recently bought a megger 1730 and i`m getting some weird earth loop readings using the no trip function. I know they can be a little higher at times when taking a "no trip" reading as my old 1552 was always a little higher too but these seemed well out... I only got the meter this week (Used...
    • Jaxo
    • Thread
    • earth little megger readings these
    • Replies: 2
    • Forum: UK Electrical Forum
  18. M

    Hate my new job!

    Just landed a new job. It's only been 4 days and I'm about to quit today. The role involves working on gas meters (wall testing). They want me to manually take readings from 20 gas meters on a wall. Each meter has about 15 data information which i need to type into a tablet held by my left...
  19. H

    Trip readings too high on ground fault relay with Toroid sensor......Help?

    Hi there, Have been carrying out testing on some 3 phase sub-DB's that have outgoing supplies to 3-phase DB's for accommodation blocks. My problem is to do with readings I'm getting on a ground fault relay which has been set to 300mA. Basically, the incoming cable to the Sub DB ( 4-core 25mm...
  20. jackhammerJIM

    Surprised by todays readings

    Went to look at wiring a biomass boiler today ... boiler and buffer tank located in a breeze block out building sat on concrete pad . PME earthing system , existing supply to outbuilding in 25mm 3core swa . ALL the pipework was in place (copper and steel pipe) connecting buffer tank and...

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