Rules and Guidelines
Want to participate in the discussions? Please read our Community Rules and Guidelines. Need some help? Visit Support and Answers.

  • State Not Answered
  • Locked Locked
  • Replies 157 replies
  • Subscribers 32 subscribers
  • Views 10633 views
  • Users 0 members are here
Options
You may also be interested in
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

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
  • 0
    Chris Pearson:
    dcbwhaley:

    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?


    I agree - C1 would be for bare copper and potentially isolate or fix there and then, but either way, it needs to be fixed. IMHO tails should enter through a gland for security. The lack of the outer sheath troubles me more than the lack of a grommet.




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


    Does this mean that bare copper is visible and could be touched, or does it mean that the insulated and sheathed tail has its sheathing cut short and the inner insulation is showing, perhaps to identify the tail's function?


    I think that we need to be told.


    Z.


Reply
  • 0
    Chris Pearson:
    dcbwhaley:

    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?


    I agree - C1 would be for bare copper and potentially isolate or fix there and then, but either way, it needs to be fixed. IMHO tails should enter through a gland for security. The lack of the outer sheath troubles me more than the lack of a grommet.




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


    Does this mean that bare copper is visible and could be touched, or does it mean that the insulated and sheathed tail has its sheathing cut short and the inner insulation is showing, perhaps to identify the tail's function?


    I think that we need to be told.


    Z.


Children
No Data

Community Rules & Guidelines