3.1.9.

(1) Except as required by Sentence (2), piping, tubing, ducts, chimneys, optical fibre cables, electrical wires and cables, totally enclosed noncombustible raceways, electrical outlet boxes and other similar building services that penetrate a fire separation or a membrane forming part of an assembly required to have a fire-resistance rating, shall be,

(a) sealed by a fire stop system that, when subjected to the fire test method in ULC-S115, “Fire Tests for Fire Stop Systems”, has an F rating not less than the fire-protection rating required for closures in the fire separation in conformance with Table 3.1.8.4., or

(b) tightly fitted.

(2) Piping, tubing, ducts, chimneys, optical fibre cables, electrical wires and cables, totally enclosed noncombustible raceways, electrical outlet boxes and other similar building services that penetrate a firewall or a horizontal fire separation that is required to have a fire-resistance rating in conformance with Article 3.2.1.2., shall be sealed at the penetration by a fire stop system that, when subjected to the fire test method in CAN4-S115-M, “Fire Tests of Firestop Systems”, has an FT rating not less than the fire-resistance rating for the fire separation.

(1) Except as permitted by Articles 3.1.9.3. and 3.1.9.4., pipes, ducts, electrical outlet boxes, totally enclosed raceways or other similar service equipment that penetrate an assembly required to have a fire-resistance rating shall be noncombustible unless the assembly has been tested incorporating that service equipment.

(1) Optical fibre cables and electrical wires and cables in totally enclosed noncombustible raceways are permitted to penetrate an assembly required to have a fire-resistance rating without being incorporated in the assembly at the time of testing as required by Article 3.1.9.2.

(2) Except as permitted by Sentence (3), totally enclosed nonmetallic raceways conforming to Article 3.1.5.20v1, optical fibre cables, and electrical wires and cables, single or grouped, with combustible insulation, jackets or sheathes that conform to the requirements of Clause 3.1.5.18.(1)(a) and that are not installed in totally enclosed noncombustible raceways are permitted to penetrate an assembly required to have a fire-resistance rating without being incorporated in the assembly at the time of testing as required by Article 3.1.9.2., provided the overall diameter of the single or grouped wires or cables, or the raceways is not more than 25 mm.

(3) Single conductor metal sheathed cables with combustible jacketing that are more than 25 mm (1 in) in overall diameter are permitted to penetrate a fire separation required to have a fire-resistance rating without being incorporated in the assembly at the time of testing as required by Article 3.1.9.2., provided the cables are not grouped.

(4) Combustible totally enclosed raceways that are embedded in a concrete floor slab are permitted in an assembly required to have a fire-resistance rating without being incorporated in the assembly at the time of testing as required by Article 3.1.9.2., provided the concrete cover between the raceway and the bottom of the slab is not less than 50 mm.

(5) Combustible outlet boxes are permitted in an assembly required to have a fire-resistance rating without being incorporated in the assembly at the time of testing as required by Article 3.1.9.2., provided the opening through the membrane into the box is not more than 0.016 m².

(6) Outlet boxes that penetrate opposite sides of a wall assembly shall be offset where necessary to maintain the integrity of the fire separation.

(1) Combustible sprinkler piping is permitted to penetrate a fire separation provided the fire compartments on each side of the fire separation are sprinklered.

(2) Reserved.

(3) Except as permitted by Sentences (4) to (8), combustible piping shall not be used if any part of that system penetrates,

(a) a fire separation required to have a fire-resistance rating, or

(b) a membrane that forms part of an assembly required to have a fire-resistance rating.

(4) Combustible piping is permitted to penetrate a fire separation required to have a fire-resistance rating or a membrane that forms part of an assembly required to have a fire-resistance rating, provided,

(a) the piping is sealed at the penetration by a fire stop system that has an F rating not less than the fire-resistance rating required for the fire separation when subjected to the fire test method in CAN4-S115-M, “Fire Tests of Firestop Systems”, with a pressure differential of 50 Pa between the exposed and unexposed sides, with the higher pressure on the exposed side, and

(b) the piping is not located in a vertical shaft.

(5) Combustible drain piping is permitted to penetrate a horizontal fire separation provided it leads directly from a noncombustible water closet through a concrete floor slab.

(6) Combustible piping is permitted on one side of a vertical fire separation provided it is not located in a vertical shaft.

(7) Combustible piping is permitted to penetrate a vertical or horizontal fire separation provided the fire compartments on each side of the fire separation are sprinklered.

(8) Combustible piping not more 25 mm in diameter containing chlorine gas is permitted to penetrate a fire separation between a chlorine gas service room built in conjunction with a public pool or public spa, and the remainder of the building.

(1) A membrane ceiling forming part of an assembly assigned a fire-resistance rating on the basis of Supplementary Standard SB-2 is permitted to be penetrated by openings leading into ducts within the ceiling space provided,

(a) the ducts are sheet steel, and

(b) the amount of openings and their protection conform to the requirements of Supplementary Standard SB-2.

(2) Fire stop flaps in ceiling membranes required in Sentence (1) shall conform to CAN4-S112.2-M, “Fire Test of Ceiling Firestop Flap Assemblies”.

(1) A ceiling assembly used as a plenum shall conform to Article 3.6.4.3.