3.2.7.10.

(1) Electrical conductors that are used in conjunction with fire alarm systems and with emergency equipment described in Articles 3.2.6.2. to 3.2.6.13. and 3.2.7.3. and Sentences 3.3.3.6.(1) and 3.3.3.7.(4) shall conform to Sentences (2) to (8).

(2) Except as permitted by Sentences (6) to (8), electrical conductors referred to in Sentence (1) shall conform to ULC-S139, “Fire Test for Evaluation of Integrity of Electrical Cables”, including hose stream application, to provide a circuit integrity rating of not less than 1 h.

(3) The electrical conductors referred to in Sentence (2) are those that extend from the source of emergency power to,

(a) the equipment served, or

(b) the distribution equipment supplying power to the equipment served if both are in the same room.

(4) If a fire alarm transponder or annunciator is connected to, but located in, a different fire compartment than the central processing unit or another transponder, all wiring between the transponder or annunciator and the central processing unit or other transponder shall be protected against exposure to fire in accordance with Sentence (2).

(5) If a panelboard supplies power to emergency lighting, the power supply conductors to the panelboard shall be protected against exposure to fire in accordance with Sentence (2).

(6) Electrical conductors located in a service space that contains no other combustible material and is separated from the remainder of the building by a fire separation that has a fire-resistance rating not less than 1 h need not conform to Sentence (2).

(7) Fire alarm system branch circuits within a storey that connect transponders and individual devices need not conform to Sentence (2).

(8) Wiring from a panelboard referred to in Sentence (5) to emergency lighting units in the same storey need not conform to Sentence (2).

(1) Electrical conductors that are used in conjunction with fire alarm systems and with emergency equipment described in Articles 3.2.6.2. to 3.2.6.8. and 3.2.7.3. and Sentences 3.3.3.6.(1) and 3.3.3.7.(4) shall conform to Sentences (2) to (8).

(2) Except as permitted by Sentences (6) to (8), electrical conductors referred to in Sentence (1) shall conform to ULC-S139, “Fire Test for Evaluation of Integrity of Electrical Cables”, including hose stream application, to provide a circuit integrity rating of not less than 1 h.

(3) The electrical conductors referred to in Sentence (2) are those that extend from the source of emergency power to,

(a) the equipment served, or

(b) the distribution equipment supplying power to the equipment served if both are in the same room.

(4) If a fire alarm transponder or annunciator is connected to, but located in, a different fire compartment than the central processing unit or another transponder, all wiring between the transponder or annunciator and the central processing unit or other transponder shall be protected against exposure to fire in accordance with Sentence (2).

(5) If a panelboard supplies power to emergency lighting, the power supply conductors to the panelboard shall be protected against exposure to fire in accordance with Sentence (2).

(6) Electrical conductors located in a service space that contains no other combustible material and is separated from the remainder of the building by a fire separation that has a fire-resistance rating not less than 1 h need not conform to Sentence (2).

(7) Fire alarm system branch circuits within a storey that connect transponders and individual devices need not conform to Sentence (2).

(8) Wiring from a panelboard referred to in Sentence (5) to emergency lighting units in the same storey need not conform to Sentence (2).