3.1.4.4 — Nonmetallic Raceways

(1) Except as provided by Subclause 3.6.4.3. (1)(a)(iv) and subject to limits on size for penetrations of fire separations as required by Sentence 3.1.9.3. (2), within a fire compartment of a building required to be of noncombustible construction, totally enclosed nonmetallic raceways not more than 175 mm in outside diameter, or an equivalent rectangular area, are permitted to be used to enclose optical fibre cables and electrical wires and cables, provided, where, (a) the wires and cables in the raceways meet or exceed the requirements of Clause 3.1.5.18. (1)(a), the nonmetallic raceways meet the requirements for at least an FT4 rating in, (i) CAN/CSA-C22.2 No. 262, “Optical Fiber Cable and Communication Cable Raceway Systems”, or (ii) CAN/ULC-S143, “Fire Tests for Non-Metallic Electrical and Optical Fibre Cable Raceway Systems”, and (b) the wires and cables in the raceways do not meet or exceed the requirements of Clause 3.1.5.18. (1)(a), the nonmetallic raceways exhibit a vertical char not more than 1.5 m when tested in conformance with the Vertical Flame Test (FT4) – Conduit or Tubing on Cable Tray in Clause 6.16 of CSA C22.2 No. 211.0, “General Requirements and Methods of Testing for Nonmetallic Conduit”.