FIELD: cable penetrations.
SUBSTANCE: cable penetration, which is a mineral wool filler, with which at least two sleeves placed in a hole with a depth of not less than 150 mm in a building structure are filled at least to the embedding depth, each of which is longer than the depth of the hole, and the refractory fibre, which is wrapped for the length of the refractory fibre placement on the sleeve of the sleeve outside the hole, wherein the refractory fibre is also at least partially placed on the outer surface of the building structure, wherein the impregnated mineral wool filler is placed over the length of the refractory fibre placement section on the sleeve between the sleeves; wherein each sleeve is also filled with a fire-retardant sealant at least to a depth of embedding; fire-retardant coating is applied at least over the length of the section of application of the fire-retardant coating on the cable outside each sleeve.
EFFECT: increased fire resistance of cable penetration.
1 cl, 6 dwg, 8 tbl
