FIELD: cable penetrations.
SUBSTANCE: cable penetration is a mineral wool filler, with which a sleeve placed in a hole with a depth of at least 150 mm in a building structure is filled at least to the embedding depth, and a refractory fibre which is wrapped around the sleeve outside the opening, wherein the refractory fibre is also at least partially placed on the outer surface of the building structure; wherein: the sleeve is also filled with a fire-retardant sealant at least to the embedding depth; fire-retardant coating is applied at least over the length of the section of applying the fire-retardant coating on the cable outside the sleeve.
EFFECT: increased fire resistance of cable penetration.
1 cl, 6 dwg, 8 tbl
