Protection for >3m tails

[SJD]

So for example, if you have a meter tail with approx. 0.5mm or so of shiny copper visible at meter end e.g. because the insulation has been stripped back a little too far, I'm hearing this should be coded C1, and needs an emergency call out of the DNO (since I'm not allowed to open the meter myself to correct it)?

 

[Andy78]

Meters, henley blocks, and fuses are designed so that there is ample room to terminate and never leave any exposed copper. If there is any then it's a sloppy job and potentially dangerous.
It's up to you to assess whether it needs a call out or not. Exposed live parts would be worthy of a call out.

0.5mm might not let you get a finger onto it, but could a curious householder poking at the shiny stuff with a screwdriver to see what it is, get onto it ?

 

[Guest55]

connector blocks are IP XXB by virtue of construction.
youd be hard pushed to justify a C1 or even C2 if it was not in an enclosure but otherwise undamaged and correctly fitted.

just thought i'd throw that little spanner in ;-)

 

[Andy78]

connector blocks are IP XXB by virtue of construction.
youd be hard pushed to justify a C1 or even C2 if it was not in an enclosure but otherwise undamaged and correctly fitted.

just thought i'd throw that little spanner in ;-)

Ha ha, just for a change.
Ok I'll back up my choice by referring to the ESC EICR guidance which cites "terminations or connections without enclosure or barrier" as an example of a C1.
Also a connector block installed without enclosure would likely have exposed single insulation (C2) and inadequate cable restraint (C3).
In practice though I'd probably slap it inside a JB, and carry on. lol.