Thoughts on heat-shrink tubing with internal adhesive liner for isolator poles?

[TheArcMan]

Now and again I nip a tiny faction too much off the incoming lines inserted into the isolator. As routine I heat-shrink over. However recently noticed the boss prefers to use adhesive lined shrink. Any thoughts regarding adhesive-lined shrinks being used on 100A isolator lines?

 

[westward10]

Sounds a bizarre thing to do. What is exposed the copper conductor or inner insulation assuming this is PVC/PVC.

 

[davesparks]

Cut the conductor down a little bit to make it sit properly

 

[TheArcMan]

7 strand 25mm, already having spent ages routing and shaping. In most cases I do trim the conductors and no problem. In the few cases where I'm routing in, a slight trim will make the turn-in too tight or just give me a head trying to get the bend in, always dependant on where the lines are coming in. Straight in from north or south never an issue, but in the west/east cases I end up shrinking, to be fair we're only ever talking about a mill of shiny copper, but forcing that mill out in an already shaped bend requires serious weetabix.

But putting the above aside. I know in HV cases they do use adhesive lined shrinking, though never seen it personally in LV. Saw the old guy doing it on a couple of occassions and thought I'd ask what others thoughts are on this. Nothing in the regs I can see regarding adhesive-lined shrinks.

 

[mainline]

7 strand 25mm, already having spent ages routing and shaping. In most cases I do trim the conductors and no problem. In the few cases where I'm routing in, a slight trim will make the turn-in too tight or just give me a head trying to get the bend in, always dependant on where the lines are coming in. Straight in from north or south never an issue, but in the west/east cases I end up shrinking, to be fair we're only ever talking about a mill of shiny copper, but forcing that mill out in an already shaped bend requires serious weetabix.

But putting the above aside. I know in HV cases they do use adhesive lined shrinking, though never seen it personally in LV. Saw the old guy doing it on a couple of occassions and thought I'd ask what others thoughts are on this. Nothing in the regs I can see regarding adhesive-lined shrinks.

Glue lined or Bonded shrink wrap tubing is thicker than standard heat shrink, it is designed to be a secure and permanent method of insulating heavier wires, whilst standard heat shrink can if required be cut off, the glue lined heat shrink can't.

 

[TheArcMan]

Glue lined or Bonded shrink wrap tubing is thicker than standard heat shrink, it is designed to be a secure and permanent method of insulating heavier wires, whilst standard heat shrink can if required be cut off, the glue lined heat shrink can't.

Right. Definitley is a thicker stronger more abrasion resistant looking material, also needs more heat to melt, the one he uses does anyway.

Of course I've seen it used in industrial environments, seen it at a few rural commercial jobs, where sealing from the elements is a priority so many connections tend to be adhesive shrinked. Just never seen it done in a typical residential environment, and thought maybe there is a reason for it. I presume the 'permanent' aspect is probably why.... though one could add 'cost' onto that too, the stuff he uses costs a fair amount.