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Ring Main at Consumer unit

Former Community Member
Former Community Member
My daughter has just had an electrical safety check done and I suspect that the electrician has been over zeleous..

Would anyone care to comment.


There is no grommet where the meter tails enter the consumer unit and the outer insulation stops just short of the knockout.

He has graded this C1.   Now my opinion is that that does not present an  an immediate threat to the safety of personell

It needs fixing but surely only a C2?


More intriguing.  He gives a C3 to the ring circuit because the two legs enter the consumer unit through separate knock outs.  I can't find that in the regs


And finally an old chestnut which has been discussed before.   A C3 because two radial "circuits" are served by a single breaker..  I have always argued that the definition of a circuit is that it is served by a single breaker.  Certainly if both radials were brought to a junction box outside the CU and then connected to the breaker by a single cable it would meet the definition of a radial..


Thanks for your attention

Parents
  • Former Community Member
    0 Former Community Member
    His argument is that the time between the insulation failing and and the head fuse "popping" is sufficient for a severe shock to be delivered and that that is doubly dangerous when the shockee is standing on a chair.   Which is why I advised my daughter not to open the door of the cupboard containing the CU.  (Is 20mm of dry wood a good insulator?)


    On your second paragraph:  I must be fair to this inspector: He is not touting for work. as he assures that he has more work than he can cope with. 

    Buti t is clear that the EICR system is seriously flawed if the same installation can be both satisfactory or unsatisfactory according to who examines it on the same day.   It is interesting to compare this to the MoT test for cars where the standards are far less subjective.  And where, if you do think the Inspector is a rip off merchant there is a DVLA appeals procedure or it only costs £40 to get the test done again by honest John.   With an EICR failure there appears to be no appeal route and it is prohibitivly expensive  to get the inspection done again.


    Of course the whole business of frequent updates to the regulations  is a fraudsters charter.   I was once told that my 20 year old property needed a complete rewire because it didn't conform to the 18th edition.  Obviously I didn't fall for that but there are people who would.
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  • Former Community Member
    0 Former Community Member
    His argument is that the time between the insulation failing and and the head fuse "popping" is sufficient for a severe shock to be delivered and that that is doubly dangerous when the shockee is standing on a chair.   Which is why I advised my daughter not to open the door of the cupboard containing the CU.  (Is 20mm of dry wood a good insulator?)


    On your second paragraph:  I must be fair to this inspector: He is not touting for work. as he assures that he has more work than he can cope with. 

    Buti t is clear that the EICR system is seriously flawed if the same installation can be both satisfactory or unsatisfactory according to who examines it on the same day.   It is interesting to compare this to the MoT test for cars where the standards are far less subjective.  And where, if you do think the Inspector is a rip off merchant there is a DVLA appeals procedure or it only costs £40 to get the test done again by honest John.   With an EICR failure there appears to be no appeal route and it is prohibitivly expensive  to get the inspection done again.


    Of course the whole business of frequent updates to the regulations  is a fraudsters charter.   I was once told that my 20 year old property needed a complete rewire because it didn't conform to the 18th edition.  Obviously I didn't fall for that but there are people who would.
Children
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