Fire proofing/rating

[Traineeboy]

1. When you drill through a wall to route cable etc I know you have to make sure that the hole is sealed to fire proof it. Can anyone recommend a product they use to fill the hole round the cable with that doesn’t damage the cable as it’s fire proof. My boss literally uses normal silicone but I don’t think that’s acceptable. Thoughts ? 
 

2. When you have done a fuse board change and the cables are rear entry what would you guys use to seal the gaps. I know when it’s glanded to use fire rated glands. Thoughts ? 

 

[Geoff1946]

Intumescent sealant is what you should use.

https://www.screwfix.com/p/no-nonsense-intumescent-sealant-white-310ml/5689R?tc=OT7&ds_kid=92700048793315993&ds_rl=1249416&gclid=Cj0KCQjw-af6BRC5ARIsAALPIlXBj9JWiKHwzV9P09KfmNMdP9X7KrNLw_RO8BmLVNMbJY6SajPMeesaAivEEALw_wcB&gclsrc=aw.ds

 

[Murdoch]

2. When you have done a fuse board change and the cables are rear entry what would you guys use to seal the gaps. . Thoughts ? 

There are no requirements in BS 7671 regarding the rear access holes to fuseboards

 

[SPECIAL LOCATION]

2. When you have done a fuse board change and the cables are rear entry what would you guys use to seal the gaps. I know when it’s glanded to use fire rated glands. Thoughts ? 

Nothing....

Why create rules that don't exist...

Enclosures should be non-combustible..

BUT they do not have to be a completely "sealed" enclosure..

Have you ever tried doing additions / alterations on installations where every last little nook & cranny is gobbed up with sealant!

:C   

 

[Traineeboy]

No I agree I just wanted to be sure. But sounds like point 1 needs something. Thanks

 

[Andy™]

No I agree I just wanted to be sure. But sounds like point 1 needs something. Thanks

depends on size of hole

some options

https://www.firesealsdirect.co.uk/passive-fire-protection/intumescent-sealants/intumescent-acrylic-sealant-pyroplex/

https://www.firesealsdirect.co.uk/passive-fire-protection/fire-pillows-and-barriers/intumescent-pillow-sausage-300x50x35mm/

there's also fire rated expanding foam, intumescent conduit etc

 

[Murdoch]

No I agree I just wanted to be sure. But sounds like point 1 needs something. Thanks

don’t forget to seal that large hole above the stairs 

 

[Traineeboy]

don’t forget to seal that large hole above the stairs 

Lol

 

[Murdoch]

Lol

precisely. All this stupidity over the odd small aperture ...

 

[binky]

surely you only need to seal a hole if drilling through a fire rated wall? In a house this would include an internal garage, but otherwise a whole house is one fire compartment.

 

[Traineeboy]

surely you only need to seal a hole if drilling through a fire rated wall? In a house this would include an internal garage, but otherwise a whole house is one fire compartment.

Ok thanks for the input

Locked to prevent being resurrected (again)