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  1. R

    megger mft1502/2 reading 1 volt when no voltage applied

    hi, just after some advice regarding a megger 1502 that reads 1v on start up. could this just be a calibration issue (last calibration 11 months ago) or a possible fault. battery good 12.2v. many thanks. j
  2. D

    Mains bonding fail

    Hi . have a quick question, hope you can help me with A recent EICR found (amongst some other things ) that I have no mains bonding on the water supply. I have a stopcock at the end of the drive, but have never been able to locate an internal one (there was an extension built and short off...
  3. S

    High R1 & R2 reading

    Hi I was wondering if any one can help me. I've done a R1 and R2 reading on a lighting circuit and there is a high reading in the middle of the circuit. I would usually expect the highest reading at the end of line. Does any one know why this is happening thanks
  4. J

    High Zs reading!

    Guys, request advice. I was recently carrying out remedial work on 2x Ltg cts reported on EICR as having very high Zs value. When I retested the measured Zs was 44.8 and 42.6. These are on a TNC-S system and Crabtree C50 5a MCBs. These would appear to be readings expected of a TT System! I...
  5. S

    High reading on a R1 + R2 test on a ring main

    Hi I've done a ring main R1 and R2 test all my readings are around 0.15 ohms apart from one which is much higher at 0.83 it is not on a spur it is part of the ring any ideas or is this ok thanks
  6. J

    megger 1710 problem

    hi I have a megger 1710 and for some reason the earth loop reading for sockets keeps coming up 0.01 on any socket I test. Anyone ever had this problem?
  7. B

    one side of the 13a double socket is giving me a trip reading for zs

    hi im doing second fix on one of the re-wire house, down ring and today i was doing my zs test i tested all sockets but one side of the twin double socket is reading trip then the other side of the same socket is fine,im useing megger mft 1553(no trip) setting.pls help
  8. U

    Underfloor Heating

    Hi, Now I understand that this question may seem pointless, so humour me anyway... A lady had underfloor heating installed about 10 months ago along with her new kitchen... I was there for the kitchen install but didn't do the mats, there are two mats serving her kitchen and utility room...
  9. J

    Induction hob possible fault!

    Hi all, can anybody help me out? ive been investigating an intermittent fault that causes the bottom rcd of a 20 way dual rcd cu to trip approx every 8/10 days. (Really annoying fault to trace).. i used a mili amp clamp meter today to measure the leakage to earth from the bottom row and got a...
  10. S

    Loop test with fluke three wire ??

    Can anyone shed any light. Just done loop test with fluke L-N-E setting L-PE. Reading was 8.66 ohms. Have reported high reading to DNO who sent engineer out. He then tested two wire L-E and read 0.13 ohms. this iss not the first time with high reading on my tester and has recently been...
  11. N

    Eicr's

    Evening all, I'm reading up for 2395, when doing EICR'S and IR tests, when removing neons, lamps and sensitive equipment are things like electric showers, water heaters ect classed as sensitive. Do most people remove all these items or prefer to connect L+N together and test to earth at 250V...
  12. S

    11-12 volts reading across line and earth

    trying to trace an earth fault in a friends home today after the RCD in the single ring main suddenly and persistently started tripping why might I see 11 to 12 volts across line and earth on some sockets? are there any tips regarding finding the earth fault? have broken the ring and...

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