FIELD: cable penetrations.
SUBSTANCE: cable penetration is a fragment of a mineral wool plate with a density of not less than 100 kg/m3 with a hole for a cable, 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, wherein the sleeve is longer than the depth of the hole; and refractory fibre, which is wrapped around the sleeve outside the hole for the length of the refractory fibre on the sleeve, 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 application of the fire-retardant coating on the cable outside the sleeve.
EFFECT: increasing the fire resistance of cable penetration.
1 cl, 6 dwg, 8 tbl
