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Discuss No cpc to lighting circuit, no rcd protection 50 year old wiring in the Electrical Forum area at ElectrciansForums.co.uk.

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  1. Vortigern
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    Vortigern Electrician's Arms

    Location:
    England
    Business Name:
    F.H. Electrical
    Hi just thought I'd throw this out here for a bit of light entertainment after the @Marvo@Marvo thread (phew!)
    So brother in law asked me to look at EICR which returned unsatisfactory. I have not looked at the installation to ascertain as to Class 1 or 2 fittings in the premises are installed. The bonding seems ok but is not verified on the water which is strange it got a tick. Or seen the DB so can't comment as yet. But there are a few things that are questionable like time for disconnection and C1 for no cpc. Also the box ticked there are no items adversely affecting electrical safety! Would be fascinating to know how he got the PFC considering Ze is .35 and PFC is 1.8Ka. Wondered what your thoughts are. Can't wait to have a look will post some piccys. Not to worry though he is NICEIC approved contractor IMG_3398.JPG IMG_3397.JPG . He/They did not want to remove lamps to test L-N IR again odd.
     
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  2. Murdoch
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    Murdoch Electrician's Arms

    Location:
    Woking
    When were smoke detectors added to EICR's?

    50 year old wiring with that high IR?
     
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  3. westward10
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    westward10 In echoed steps I walk across an empty dream. Electrician's Arms

    Location:
    Northamptonshire
    That has been done by someone who is not competent to complete an EICR. You state facts and not recommendations.
     
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  4. Bob Geldoff1234
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    Bob Geldoff1234 Regular EF Member

    How long ago was the inspection? All NIC/EIC certification is done online and has been for a few years now.A hand written one is old school;)
     
  5. Leesparkykent
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    Leesparkykent You Rock Gmes Staff Member Trusted Advisor

    Location:
    Kent
    PFC could be 1.8KA due to bonding. Obviously PFC is tested with the main earthing conductor connected. The bonding could be causing a lower impedance and the lower the impedance the higher the fault current.
     
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  6. Karin
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    Karin Trainee Trainee Access

    Location:
    Kent
    i'd be suprised if any IR testing was done there! seems he forgot he'd already recommended a C1 rewire of the lighting circuits as he was scribbling +200 in every box.. :rolleyes:
     
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  7. anthonybragg
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    anthonybragg Electrician's Arms

    Location:
    NORTHAMPTON
    Business Name:
    CHARLTEC ELECTRICAL LTD
    Yes, but their still used by some contractors.
     
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  8. gutterball
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    gutterball Electrician's Arms

    Location:
    Fife
    Agree with the smoke alarms you can't comment on some thing that ain't there. would you comment that there's no electric shower, or no light outside the front door?
     
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  9. Vortigern
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    Vortigern Electrician's Arms

    Location:
    England
    Business Name:
    F.H. Electrical
    06/2016
     
  10. Vortigern
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    Vortigern Electrician's Arms

    Location:
    England
    Business Name:
    F.H. Electrical
    Yes and with 60898 B type! and mixed wiring.
     
  11. anthonybragg
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    anthonybragg Electrician's Arms

    Location:
    NORTHAMPTON
    Business Name:
    CHARLTEC ELECTRICAL LTD
    How long ago did the installation methods change from numerical to alphabetical.
     
  12. Wilko
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    Wilko Electrician's Arms

    Location:
    Berkshire
    Business Name:
    Wilko Electrics
    Bonding would help, but to get from 0.35 Ohms to the PFC required 240/1800 = 0.133 Ohms (say) the bonding would need to be about 0.22 Ohms by its good self . Which beats my best TT by a bit, I'm just jealous.
     
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  13. Bob Geldoff1234
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    Bob Geldoff1234 Regular EF Member

    He has put max disconnection times as 5 seconds in some boxes(which should be 0.4) and then 0.4 in others.Also reference method as 'I'.Is there an 'I'?.This guy doesn't know how to test and shouldn't be filling these forms out. Also C1 for no lighting earth? C2 at best.
     
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  14. Midwest
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    Midwest Electrician's Arms

    Location:
    Oxfordshire
    Rewire, its 50 years old. If I could get rewired I would. Stop worrying about 1.8 that 2.2 that, the cable is past its use by date by 30 years. I'd code defcon 1.
     
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  15. Dave OCD
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    Dave OCD Electrician's Arms

    Location:
    Cornwall
    Business Name:
    Hendry Electrical Services
    But many cables I've tested over 50 years old have checked out very well, usually the stranded imperial tinned copper with nice thick PVC/PVC insulation and sheath. They don't make it like they used to as Pete/Tel might say. :)
     
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  16. telectrix
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    telectrix Scouser and Proud of It Trusted Advisor

    Location:
    cheshire/staffordshire
    Business Name:
    Telectrix
    some 50 year old cable is in better condition than the crap we buy now. Dang goddam that OCD, getting in before me. :)
     
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  17. Leesparkykent
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    Leesparkykent You Rock Gmes Staff Member Trusted Advisor

    Location:
    Kent
    Did you ever see that thread on here where a member achieved a Ra <1 ohm....Think
    It cost the company he was doing It for around 4K. IIRC there were multiple rods on top of each other on the corners of the building and a bare copper tape or similar exothermic welded to the rods. I can't seem to find the thread or even the member who posted it.
     
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  18. Wilko
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    Wilko Electrician's Arms

    Location:
    Berkshire
    Business Name:
    Wilko Electrics
    I'm going to put up my best TT result soon (need a pic of the reading or its just a fishing story). Used the site for assessment recently. "Would you like me to do a Ze?" I innocently asked the Assessor :rolleyes:
     
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  19. westward10
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    westward10 In echoed steps I walk across an empty dream. Electrician's Arms

    Location:
    Northamptonshire
    95% of the wiring in my house is 47 years old all tests out fine, in fact doing a bit of alteration tomorrow with the upstairs lighting with my obsolete black and red T&E.
     
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  20. Leesparkykent
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    Leesparkykent You Rock Gmes Staff Member Trusted Advisor

    Location:
    Kent
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  21. westward10
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    westward10 In echoed steps I walk across an empty dream. Electrician's Arms

    Location:
    Northamptonshire
    I am going to reassign room designations for the duration of the works.
     
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  22. Wilko
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    Wilko Electrician's Arms

    Location:
    Berkshire
    Business Name:
    Wilko Electrics
    Done your RA?

    IMG_0796.JPG
     
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  23. HandySparks
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    HandySparks Trusted Advisor

    Location:
    Hampshire
    Business Name:
    Neish Electrical Services
    Guess you could reassign the bath as an extra large bidet. :D
     
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  24. westward10
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    westward10 In echoed steps I walk across an empty dream. Electrician's Arms

    Location:
    Northamptonshire
  25. westward10
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    westward10 In echoed steps I walk across an empty dream. Electrician's Arms

    Location:
    Northamptonshire
    Hung an old wash board over the side, a bar of carbolic at the end.
     
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  26. Des 56
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    Des 56 Trusted Advisor

    Location:
    Gliese 581C
    The comments box states lighting requires cpc
    The test schedule begs to differ
     
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  27. Midwest
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    Midwest Electrician's Arms

    Location:
    Oxfordshire
    Of course the other issue that normally impacts on domestic wiring/installations that's over 50 years old, is that its been attacked by weekend warriors or DIY'ers for the last 50 years. This normally manifest itself in RFC's being chopped up, with hidden jb's aplenty, connector strips at lighting points with hot lamps frying the cables and various faceplate changes ruining cable ends, especially in kitchens which have been replaced three times over, etc, etc.

    Now if you could get the electrical equivalent of a short back & sides, to tidy things up, then perhaps? I've seen a few house purchases, where the new owner has spent thousands on new bathrooms & kitchens, replaced an ageing boiler and associated furred up pipes, but don't seem to want do the obvious thing of sorting out the impending doom below the floorboards.

    A IR test might suggest things are hunky dory, but a rewire often reveals the whole sorry state of things. If I was to buy an old'ish house, I'd set aside some money to rewire, not matter what some meter told me. :)
     
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  28. Vortigern
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    Vortigern Electrician's Arms

    Location:
    England
    Business Name:
    F.H. Electrical
    Excuse my ignorance but why do you say that?
     
  29. westward10
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    westward10 In echoed steps I walk across an empty dream. Electrician's Arms

    Location:
    Northamptonshire
    The schedule indicates a 1.0 cpc but the IR and Zs readings are omitted or overwritten as N/A. So I assume the circuits predominantly do not have cpcs even though there is one at the CU?
     
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  30. Vortigern
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    Vortigern Electrician's Arms

    Location:
    England
    Business Name:
    F.H. Electrical
    Ah right! Doh! You know I was looking and looking to find what that comment meant and missed it. Oh dear! I am so glad I threw it out to you lot.
     
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  31. Wilko
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    Wilko Electrician's Arms

    Location:
    Berkshire
    Business Name:
    Wilko Electrics
    Hopefully indicates cpc present and correct at CU but cut back at light point :)
     
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