UK Metal clad cable entry

[Ian1981]

If the CU was fire rated then you would have to seal it, but it’s not , so there’s no need to use fire foam or sealant.
Contrary to belief, good practice doing it, is not good practice at all.

 

[Dustydazzler]

Fire rated is incorrect terminology

non combustible construction is the proper term

 

[Ian1981]

Fire rated is incorrect terminology

non combustible construction is the proper term

And that’s my point.
Its not fire rated hence it doesn’t have to be sealed, it is however to be made of a non combustible material or can be made of a combustible material, housed in a non combustible cabinet.