Consumer unit top knockout

[ppelec100]

Does the consumer units top knockouts need to have stuffing glands installed even if a 50x50 trunking will cover the holes? Or is it sufficient to use a grommet or grommet strip if a rectangular hole is cut?

The stuffing gland will maintain the IP rating but that will be maintained by the trunking cover whilst it’s on.

What do you guys do with the knockouts when trunking is running along the top, bottom and sides?

 

[cliffed]

Fine if trunking is used, IP not compromised
Glands not required

 

[DefyG]

Or is it sufficient to use a grommet or grommet strip if a rectangular hole is cut?

 

[ppelec100]

Fine if trunking is used, IP not compromised
Glands not required

Thanks. What about cutting the seal for 100amp fuse to change meter tails? Yay or nay? I plan on buying some seals after to seal it. They have a smart meter though, will the DNO know?

 

[Dustydazzler]

I have never had to cut a fuse seal , as the seal is always on the floor when I got there....

 

[diditrain]

Don’t know how true it is, but apparently they know when the meters are being tampered with and if there hasn’t been any power cuts in the area, one of the fuse police races round to the property.

 

[ppelec100]

Don’t know how true it is, but apparently they know when the meters are being tampered with and if there hasn’t been any power cuts in the area, one of the fuse police races round to the property.

Oh I’m a bit paranoid to cut it even though I’ll reseal it. I don’t want to do it live otherwise the ambulance will turn up too