readings

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  1. L

    fluke 1652c continuity readings

    Hi all I keep having problems with my fluke the continuity readings are all over the shop never stable I always check my readings on a calcard before testing and when nulled I get correct reading i will test it on calcard 5 minutes later and it's half an ohm out so never know if I am getting an...
  2. D

    High zs readings low ze readings

    Hello I've recently been called to a job regarding high earth fault loop readings through out the house they've got an old style mk consumer unit with a 30ma 60a main switch mk LN5760 the supply side of the rcd had good readings and but the load side readings were more than double that of the...
  3. D

    RCDs raising zs values

    Was at a property toady which I've done previous work before including fuseboard change. All i did today was change a few socket plates over for new ones. Took some Zs readings and noticed they were very near the limit of being acceptable ie: 0.92, 0.98 etc. Took a Ze at the board with main...
  4. G

    Acceptable readings for a NEW installation

    OK peeps I have just tested an 185 4 core SWA, and have got readings of 40 Megs on L2 to earth and L3 to earth. Although this is accepatable according to the regs, I feel it is unacceptable as a NEW installation, and indeed there is evidence of water on some of the switchgear, which clearly...
  5. S

    Socket ring readings. R1+R2 approx half r1, r2

    I havent come across this before, wondered if its common and what it signifies in the ring. Remeasured 3 times and got within 20mohms or so each time so pretty sure its not a zeroing the meter thing. 2.5:1.5 TW/E ring. I went around all of downstairs rooms, did min of few sockets in each room...
  6. D

    EICR - high readings

    I am part way through a condition report for a customer. The house is generally in good condition but the electrical installation is quite old. Although the rings are properly installed as ring final circuits, the 2.5 mm t and e cable is stranded and the Cpc appears to be 1 mm rather than 1.5...
    • dan7202
    • Thread
    • eicr generally readings rings
    • Replies: 15
    • Forum: UK Electrical Forum
  7. 0

    Zs readings on TT system

    Hi there, In the process of testing a large property. TT system. Ra is 58.4 ohms so all good. But starting to test Zs and getting readings of 0.18 on sockets? Why would this be?
  8. R

    Ze on 3phase industrial?

    Evening guys, I`m working on a small industrial unit at the moment. Most of my work is domestic and have not come across this before when doing commercial or industrial. The main supply is coming up through the floor and into the main 3 phase service head......along with this is what I would say...
  9. M

    Different continuity R1 and RN readings on ring

    Changing a CCU and reconnecting existing wiring (twin and earth) = did a N - CPC IR test for earth leaks prior to dismantling the old (BS3036) unit for obvious new RCD trips; all ok. However, on ring circuit the continuity end-to-end readings of the R1 and Rn are 0.3 ohms different; 0.41 on...
  10. R

    no cpc continuity on ring final, strange readings !

    Good Evening all, Been at a property today starting intial tests for a board change tommorow. There are two ring circuits, on one of the ring circuits i had an open circuit on the cpc. Live and neutral where fine 0.4/0.4. I started to locate the break by splitting the legs and joining the live...
  11. B

    Rcd

    Just done a eicr on a property,socket outlets on one circuit on rcd testing at 5x is 42ms,what are you meant to do as readings on 1x is within the limits.as the 5x exceed limits.
  12. S

    fluke mft

    Forgive me but I can't search existing threads as the app just crashes each time. I'm looking at fluke mft's and would like to know which is best, why and of any issues. I did have one years ago but it did give some odd readings now and then and don't really want that again. Those who can't...
    • sledgehammer
    • Thread
    • can't don't fluke mft quote readings
    • Replies: 6
    • Forum: UK Electrical Forum
  13. Simonslimline

    ELI on no trip with Megger MFT

    Does anyone have issues with this test and how accurate is a No trip test? I find my readings seem to change a fair bit testing the same circuit a few times. This is using a 1730.
  14. B

    Megger 1553

    Hi, I use the megger 1553 tester, Now i have herd that yoiu can get the software that automatically transfers the info onto the certs and then prints.. Anyone use it and if so is it good and how does it work?
  15. O

    Customer dispute with supplier

    So, I've got a customer, who according to their supplier, owes them £1700. Given they use about 7-10 units per day this seems more than a little odd, but the supplier doesn't seem to want to know. They hadn't had an "actual" reading for 2 years, nor had the client given one. So what can they...
    • Octopus
    • Thread
    • actual customer reading readings supplier years
    • Replies: 31
    • Forum: UK Electrical Forum
  16. HappyHippyDad

    Low IR readings on lighting circuit - 0.654 Mohms

    I have spent quite a bit of time today trying to understand why I am only getting 0.654Mohms on the upstairs lighting between Live and neutral (at 250V)!!! L-N 0.654 Mohms N-E 25.11 Mohms L-E 24.7 Mohms I get almost the same when measured at 500V (cant remember exactly but about 0.6Mohms) I...
  17. T

    high Zs on 110v

    hi all, In a bit of a pickle ,got niceic audit imminent ,and i have some exccesive readings from a 110v transformer backed up by 60898 type c 16amps mcb acording to BS7671 pg 61 41.6 max is 0.34 .can change to a type B to get max 0.69. these reading s are from another tester ,who...
  18. B

    r1+r2 readings

    Im sure this has been covered before, but Im after peoples views, I am 100 percent confused by the reg that states zs may be calculated using ze plus r1 r2, but r1 r2 cannot be calculated using zs minus ze, naturally I test my r1 r2 and zs. But once I've tested my zs on a periodic for example I...
  19. cliffed

    rcbos

    like your opinions on this ,jus finished a school extension ,everything fine except a couple of loop impedances readings on lighting circuit.These exceeded the appropriate limits,in the regs.All are protected by rcbo"s 10 amp c type,the electrical engineer wants it corrected to comply to regs.We...
  20. L

    Fault finding questions

    1. I carried out a x1 rcd test on a 30ma rcd and the time came in at 44ms with doesn't comply with the circuit disconnecting by 0.4ms. What is the problem? Old/faulty rcd? X5 was 13ms. 2. Done my continuity test on a ring and all continuity was proved. However my neutrals end to end was 0.61...

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