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