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  1. Ian1981

    Rcbo neutral and functional earths

    They are functional earths and should be coloured cream tho I think the colour has now changed to pink, they are white looking normally, they have definitely changed to a darker shade.
  2. Ian1981

    Rcbo neutral and functional earths

    Yeah the DB is housed in a cleaning cupboard. I do hate tie wraps on the conductors
  3. Ian1981

    Rcbo neutral and functional earths

    Well The DB is located in a cleaners cupboard which houses cleaning products, DB cover is correctly fitted etc. The twin and cpc cables are fine tho, although they are LSOH cables.
  4. Ian1981

    Rcbo neutral and functional earths

    Rcbos are operating and test within their perimeters. The discolouration is throughout their length. Rcbos are not overloaded and the odd one is still coloured cream , but not many.
  5. Ian1981

    Rcbo neutral and functional earths

    I can’t see evidence on the neutral leads, they are just an odd colour compared to the blue ones we all know and can see in the picture. The functional earths have suffered discolouration by I’d imagine, heat, them rcbos are warm to the touch. Ive asked Schneider to see if they had produced such...
  6. Ian1981

    Rcbo neutral and functional earths

    Thoughts on this please, functional earth leads obviously showing signs of heat damage, the greenish coloured neutral leads compared to the blue ones are coloured throughout their length, maybe heat has caused this?
  7. Ian1981

    Adiabatic equation help

    As said, 10mm is the minimum bonding conductor size, an existing 6mm tho doesn’t necessarily make an installation unsatisfactory. Your earthing conductor would also need to be 10mm minimum if it’s a combination of protective bonding conductor and main earthing conductor.
  8. Ian1981

    Adiabatic equation help

    It needs to comply with table 54.8, the adiabatic is not for sizing protective bonding conductors
  9. Ian1981

    Reference method

    How else is the cable installed in its entire run?
  10. Ian1981

    EICR - Unsatisfactory

    The building regulations require you to be 100mm from the hob, not 300mm plus it’s a building regulation for new builds and similar, nothing to do with bs7671 which deals with the suitability of the external influences etc For the picture and if no evidence of thermal damage it’s only a C3 at...
  11. Ian1981

    Sub main 125m in16mm with 80A 1361 over current device

    It’ll be sound if your just running a table lamp!
  12. Ian1981

    NICEIC Inspection next week!

    Rather than taking the attitude of, ‘it doesn’t matter if I don’t know they just want my money and I’m in’ take the time to brush up on your knowledge, learn the procedure of initial verification and testing , why we select equipment the way we do and actually impress the assessor, all the best...
  13. Ian1981

    Terminating armoured in meter box

    Yes a meter box is an enclosure, the regulations do not define if only a skilled or non skilled electrically person is required to open it with a key or tool and there are also internal barriers against access to live parts, so I don’t see basic insulation on show in a meter cabinet as non...
  14. Ian1981

    Any recommendations for a good quality Torque Screw driver set please?

    I’ve looked at the wrench for doing mccb’s, pricy but I suppose if you want to torque them, then that’s what you need.
  15. Ian1981

    Coding question - Twin and Earth Tails

    If it’s accessible then it’s a C2, basic insulation exposed outside of a suitable enclosure, basic insulation cannot be used on its own as a form of protection.
  16. Ian1981

    How do you deal with cancellations..?

    Too far man, too far:) Oops wrong person was meant for Buzz
  17. Ian1981

    How do you deal with cancellations..?

    Egg their house and blame it on teenagers
  18. Ian1981

    Garage board

    Both, record the Ze at the origin and the Zs of the distribution circuit installed, likewise with the PFC.
  19. Ian1981

    Niceic cert filling in on software programme

    You measure Ze at the origin not Zs , hence no Zs box for the origin. N-E IR tests are covered in the L-E column. L-E means all live conductors which includes the neutral tested to earth.
  20. Ian1981

    25mm tails why..?

    Flexi tails are a game changer, bendy bendy.

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