we will be changing our consumer unit in the near future, it is unlikely that there's enough cable on the ends of some circuits for them to reach the required terminals in the new unit.
Of particular concern is a ring main that was added to the existing unit some years ago, it is unlikely that the cpc of the (say)outgoing leg is long enough to reach the earthing terminal in the new unit, I'm interested in knowing what is considered industry best practice in this scenario.
I'm perfectly aware that a terminal block and a length of appropriate sized and sheathed wire can extend the cpc but is this a "textbook" practice or should a junction box be added to the leg and a new bit of t/e run from the jb to the unit.
similarly what would be considered best practice if all of the existing circuits' ends fell short in this manner
just interested in knowing the best practice solution to such problems
and yes i do know the work is notifiable and that the installation will need to be tested/certifcated etc
Of particular concern is a ring main that was added to the existing unit some years ago, it is unlikely that the cpc of the (say)outgoing leg is long enough to reach the earthing terminal in the new unit, I'm interested in knowing what is considered industry best practice in this scenario.
I'm perfectly aware that a terminal block and a length of appropriate sized and sheathed wire can extend the cpc but is this a "textbook" practice or should a junction box be added to the leg and a new bit of t/e run from the jb to the unit.
similarly what would be considered best practice if all of the existing circuits' ends fell short in this manner
just interested in knowing the best practice solution to such problems
and yes i do know the work is notifiable and that the installation will need to be tested/certifcated etc