- Reaction score
- 157
Meter on internal garage wall, and CU just the other side internal to the house.
Currently there is no mechanical protection on the ex. tails where they go straight through the wall.
I need to fit replacement tails. Can I safely assume it's OK and normal provided that I keep them in zone where they are now (ie underneath the CU in this case), then earthed steel conduit through the wall not required? I would use plastic conduit to protect from whatever is inside wall.
As it's a garage and so a fire wall, I take it that 527.2.3 if a conduit is <= 30mm internal dia no no special fire rated sealing needed.
Edit: - I just realized (checked my pics from trip 1) that tails enter wall on the meter/garage side not lined up beneath the meter, about 150 mm off to the side. As wall is thicker than 100mm, then zone does not go through to other side, and hence unprotected tails technically not in zone when they enter wall from the meter cupboard. - Am I being pedantic?
Currently there is no mechanical protection on the ex. tails where they go straight through the wall.
I need to fit replacement tails. Can I safely assume it's OK and normal provided that I keep them in zone where they are now (ie underneath the CU in this case), then earthed steel conduit through the wall not required? I would use plastic conduit to protect from whatever is inside wall.
As it's a garage and so a fire wall, I take it that 527.2.3 if a conduit is <= 30mm internal dia no no special fire rated sealing needed.
Edit: - I just realized (checked my pics from trip 1) that tails enter wall on the meter/garage side not lined up beneath the meter, about 150 mm off to the side. As wall is thicker than 100mm, then zone does not go through to other side, and hence unprotected tails technically not in zone when they enter wall from the meter cupboard. - Am I being pedantic?
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