readings

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  1. W

    IR Readings

    Hi All Ive just in the process of doing a rewire and have been doing some circuit testing with my new megger 1710. On some circuits im getting IR readings of between 300 to 600 Mohm others and showing >999. My questions are: 1. should I be getting >999 on all circuits as it's a new rewire or...
  2. D

    Faultu isolation switch readings

    Hey peps. As on many occasions doing my electric shower repair rounds, I came across a faulty DP 40a pull cord shower isolation switch. Why it is I always get a reading of about 70v between L-N load side when these switches fail. It's always puzzled me why not 120v or 180v......nope always...
    • Ducksy
    • Thread
    • fault isolation readings switch
    • Replies: 3
    • Forum: UK Electrical Forum
  3. S

    Continuity of Final Ring circuit

    Hello chaps and chapettes, Continuity of final ring circuit I measured: L-L = 1.45 E-E = 0.8 but measuring N-N I got 108.8....???!!!!!! Any ideas..? Or are those readings good in my limited experience and consequently I'm an idiot. A out of date Cadbury's cream egg for the most sarcastic...
  4. M

    ELECSA Certification Scheme Ring final continuity readings and Elecsa assessment looming...

    Hi I have my Elecsa assessment in under two weeks and ive never felt so stressed in my life! I've changed my C.U. to use as my job as i thought it would be easier but im really struggling with the testing especially on the downstairs ring final sockets. Ive done end to ends and got Line 0.61ohms...
  5. A

    Ze readings change

    Hi all have a problem with zs readings on final circuit of 4.4 so tested ze which was also in the same region 4.00 tested r1 + r2 which were ok (dead test) 0.25 tested ze again now a reading of 0.37 tested socket again 0.68 tested again ten min later 2.7 went next door as the two houses...
  6. 1

    Memera 2000 RCD Question (A100HE)

    Hi Guys, Have seen some similar threads on these boards but still after some wisdom . . . At clients yesterday and completed tests on a lighting circuit that was moved to the RCD side of the board. Came to complete the RCD tests before packing up to go home and that is where it all began...
    • 1strangefish
    • Thread
    • before circuit memera question rcd readings results where
    • Replies: 4
    • Forum: UK Electrical Forum
  7. P

    Fault Find #7

    Call out to a house, double socket in the far end of the kitchen has stopped working. Questions to the home owner (my sister in-law btw):- Has a fuse blown? "Yes, this afternoon. I re-wired the fuse myself." Do all the other kitchen sockets work? "Yes, only the one that we plug the...
  8. A

    TT System testing and results

    Hi Guys, I have been testing for about a year and have come across my first tt system yesterday. I disconnected the earth and tested for Ze and got 8.67 ohms which I believe to be a great reading as osg allows up to 200 ohms. I couldn't do a Ra reading as the rod is under the house and...
  9. G

    high readings at (some) socket outlets

    I'll be pulling the circuit apart anyway.. However, Thought Id run it past the forum before I do. Been testing today prior to CU change soon. When testing one of the 2 RFC's at the house all was going well, until i got very high readings at about 4/5 of the socket outlets upstairs. I was...
  10. B

    High ZE readings

    Hello all, This is my first thread as joining the group to hopefully learn and possibly assist. I have been a industral engineer for many moons and started as a sprky with a 4 year apprenticeship (yes a long time ago!) - back in those days testing seemed easier and less complex than today but...
  11. J

    FLUKE 1652 Continuity Test

    Hello people. I'm a gold card holding spark with a commercial background (metal munchin'). Recently I've got a job 2nd fixing flats, no problems except i didn't have a test rig so i bought a Fluke 1652 one 2nd hand, had it calibrated and changed the batteries. The problem is with the...
  12. B

    RFC readings

    Hello Went to job yesterday socket on ring had burn out quite badly scared customer to death. First thing i found was a spur from socket in swa no glands just made of in socket out through wall feeding 8 latern lights on patio , water feature and a summer house 4 way cu which in turn fed 6...
  13. N

    TT SYSTEM. Zs readings confusing me.

    Howdy all. A friend of mine has recently bought a house and asked me to pop round and do a few tests just for piece of mind everything's ok. It's a TT system with 30mA split DB Ze(Ra) - 10.59 with all bonding disconnected When I got some Zs readings they were all coming up at around the 15...
  14. J

    Rcd x5 higher than x1 reading

    Hi all, just filling out some paperwork from an inspection a couple of weeks ago and just noticed that a x5 reading is 76.4 and x1 is 28.4-not sure if I've misplaced a decimal point or what.. Going to go back and recheck it tomorrow- how can x5 be higher?
  15. P

    Radial circuit too long

    Hi went to a job yesterday there was 3 ring mains so i thought, after testing them they were radials but were all terminated into 32 a mcbs 2 wire in them did R1 R2 TESTS and readings were high 3.2 ohms/ 1.9ohms these were the highest there are a further 4 radials which are around the 1.9 the...
    • pablo4321
    • Thread
    • circuit circuits long radial radial circuit radials readings too
    • Replies: 21
    • Forum: UK Electrical Forum
  16. M

    R1+R2 Readings - Advice

    Hi, Hoping someone can help. I went to a job today where the householder had sixteen downlights installed less than twelve months ago, (no test sheet or certificate for the install), the complaint being that bulbs (240V GU10) are always blowing. I pulled the downlights and checked connections...
  17. R

    earth bonding on conduit

    Just been to look at a CU change in a flat. The supply comes in a cupboard in a 32mm conduit (prob the imperial equivalent) and the earth has been taken off the conduit. Is it still acceptable to use this (assuming the readings are good) I know water pipes are a no no haven't come across this...
    • Robert Turnbull
    • Thread
    • bonding conductor conduit earth looks readings
    • Replies: 19
    • Forum: Electrician Talk
  18. I

    BIg difference between Inverter and Meter readings

    Went to look at a 10KW install today that was installed last june and company went bust. The Power one 3 phase inverter reads 4274Kwh's where the elster A1140 reads only 4066Kwh's I havent seen one with this much difference before is this an acceptable difference?
  19. M

    Weird Voltage to Earth Readings

    I will refer a weird voltage readings on my mate's workplace.. A newly installed transformer delta-wye, 440/380V will supply a TT power system. He measured 380V per phase on the secondary and 220V L-N.. But when he measured L3 to earth he measured 0V. L1 and L2 to earth is 380V and Neutral to...
    • Minetsky
    • Thread
    • attach earth readings secondary voltage volts weird
    • Replies: 8
    • Forum: UK Electrical Forum
  20. M

    Bizarre readings

    RFC step 1 tests :- l-l .31Ohms, n-n .31 Ohms, cpc-cpc 0 Ohms, repeated this numerous times and got same results. Remove crocodile clips from probes and touch cables directly and get sensible results. Repeated this exercise a few times as it didn't make sense to me but kept getting the same...

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