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