Canada Oil and Gas Installations Regulations — 12
12 (1) Every offshore installation shall have an emergency source of electrical power that is independent of the primary source of electrical power and that is capable of supplying electrical power sufficient to operate, for at least twenty-four hours, the following equipment: (a) all lights referred to in subsection (2); (b) all gas detection and alarm systems; (c) all fire detection and alarm systems; (d) all firefighting systems except any fire pump that is driven by a liquid fuelled combustion engine; (e) the general alarm system and all internal communication systems; (f) the emergency shut down system referred to in section 18; (g) all lifesaving systems; (h) all navigation lights, sound signal systems and illuminated markings, that are required by section 21; (i) all radio communication equipment necessary to comply with the contingency plans referred to in section 44; (j) on a mobile offshore platform, the main ballast control system, one ballast pump for each individual ballast system and one bilge pump for each individual bilge system; (k) on a column-stabilized mobile offshore platform, the secondary ballast control system; (l) all equipment necessary to secure the production or drilling operations in progress at any one time in a safe manner, including a well disconnect system; (m) if a pumping system is required under paragraph (l), one pump that is not driven by an internal combustion engine that has sufficient capacity to kill any well on the installation; (n) any blow-out prevention system; and (o) any manned diving equipment dependent on an electrical supply. (2) Every offshore installation shall be equipped with lights supplied by the emergency source of power described in subsection (1), in the following locations: (a) every embarkation station on deck and over sides; (b) every escape route and area containing escape route markings; (c) all service corridors and corridors in accommodation areas, and all stairways, exits and personnel lift cars; (d) all machinery spaces and main generating stations; (e) the control station and all control points; (f) all spaces from which the drilling and production operations are controlled and at which controls of machinery essential for the performance of those operations and devices for the emergency shut-down of the power plant are located; (g) the stowage positions for firefighting equipment; (h) each sprinkler pump and fire pump and each ballast and bilge pump, referred to in paragraph (1)(j), and the starting position for each pump; (i) every helicopter landing deck and every obstacle marker on that deck; and (j) the radio room. (3) Where the emergency source of electrical power required by subsection (1) is a mechanically driven generator, the offshore installation shall be provided with (a) a transitional source of electrical power, unless the generator will automatically start and supply the power required by subsection (1) in less than 45 seconds from the time the primary source of electrical power fails; and (b) a self-contained battery system designed to supply sufficient power, automatically on failure or shutdown of both the primary and the emergency sources of electrical power, to operate, for a period of at least one hour the equipment described in subparagraphs (i) and (ii) and, for a period of at least four days, the equipment described in subparagraph (iii): (i) the lights located in every emergency exit route, at every escape route, in every machinery space, the control station and every emergency assembly room and at every launching station of the lifesaving system, (ii) the internal communication system and the general alarm system, and (iii) the navigation lights, sound signal systems and illuminated markings referred to in section 21. (4) The battery system referred to in paragraph (3)(b) shall be capable of returning to the trickle charge state on restoration of the primary or emergency source of electrical power. (5) The emergency source of electri