3.16.1.5 — Lighting

(1) Emergency lighting shall be provided to an average level of illumination not less than 10 lx at floor or tread level in, (a) exits, (b) principal routes providing access to exit in an open floor area and in service rooms, (c) corridors used by the public, (d) corridors serving patients’ or residents’ sleeping rooms in a Group B, Division 2 or 3 occupancy, (e) corridors serving classrooms, (f) underground walkways, (g) public corridors, (h) floor areas or parts of them where the public may congregate in, (i) Group A, Division 1 occupancies, or (ii) Group A, Divisions 2 and 3 occupancies having an occupant load of 60 or more, (i )floor areas or parts of them in day care centres where persons are cared for, (j) food preparation areas in commercial kitchens, (k) principal routes providing access to exit in a floor area that is not subdivided into rooms or suites of rooms served by corridors in a business and personal services occupancy, a mercantile occupancy or an industrial occupancy, (l) internal corridors or aisles serving as principal routes to exits in a business and personal services occupancy, a mercantile occupancy or an industrial occupancy that is subdivided into rooms or suites of rooms, and is not served by a public corridor, and (m) washrooms with fixtures for public use. (2) Emergency lighting to provide an average level of illumination of not less than 10 lx at floor or catwalk level shall be included, (a) in a service space referred to in Sentence 3.2.1.1. (9), and (b) on a shelf and rack storage system, in locations described in Sentence 3.16.1.5. (2). (3) The minimum value of the illumination required by Sentences (1) and (2) shall not be less than 1 lx. (4) In addition to the requirements of Sentences (1) to (3), the installation of battery-operated emergency lighting in health care facilities shall conform to the appropriate requirements of CSA Z32, “Electrical Safety and Essential Electrical Systems in Health Care Facilities”.

(1) An emergency power supply shall be, (a) provided to maintain the emergency lighting required by this Subsection from a power source such as batteries or generators that will continue to supply power in the event that the regular power supply to the building is interrupted, and (b) so designed and installed that upon failure of the regular power it will assume the electrical load automatically for a period of, (i) 2 h for a building within the scope of Subsection 3.2.6., (ii) 1 h for a building of Group B major occupancy classification that is not within the scope of Subsection 3.2.6., (ii.1)1 h for a building that contains a Group C major occupancy retirement home and that is not within the scope of Subsection 3.2.6., (iii) 1 h for a building within the scope of Article 3.2.2.43A. or 3.2.2.50A., and (iv) 30 min for any other building. (2) If self-contained emergency lighting units are used, they shall conform to CSA C22.2 No. 141, “Emergency Lighting Equipment”.