Canada Oil and Gas Installations Regulations — 13
13 (1) Every internal combustion engine on an installation shall be installed, maintained and operated in accordance with American Petroleum Institute RP 7C-llF, Recommended Practice for Installation, Maintenance and Operation of Internal-Combustion Engines . (2) Combustion air for every internal combustion engine and fired vessel shall be taken from non-hazardous areas. (3) Exhaust gas from every internal combustion engine and fired vessel shall be discharged to non-hazardous areas. (4) The air induction system of every diesel engine operating in a hazardous area shall be equipped with (a) a flame arrester in the induction system; (b) a shut-off valve that is located between the engine air inlet filter and the induction system flame arrester and that is capable of being closed automatically by the engine overspeeding device and manually; (c) a flame arrester in the exhaust system; and (d) a spark arrester in the exhaust system, downstream of the flame arrester. (5) Subject to subsection (13), the fuel supply system for every diesel engine shall be equipped with a manual shut-off device and, except for the emergency source of electrical power required by section 12, with a device that will automatically shut off the fuel supply if any of the following occur: (a) overspeeding; (b) high exhaust temperature; (c) high cooling water temperature; or (d) low lubricating oil pressure. (6) The engine crankcase breather pipe on every diesel engine shall (a) be equipped with a flame arrester; and (b) in the case of an engine in an enclosed Class I, Division 2, hazardous area, lead to the atmosphere outside the installation. (7) Basic operating instructions for every diesel engine shall give details of stop, start and emergency procedures and be permanently attached to the engine. (8) The layout of every gas turbine, including the location of the control points, shall take into account the ability of the control point closest to the turbine to withstand pressure waves in the event of an explosion in the gas turbine exhaust duct or gas turbine hall and the effects of the failure of a gas turbine rotor where the fragments cannot be contained. (9) Every gas turbine shall have, in addition to the speed governor, a separate overspeed device, arranged and adjusted so that the manufacturer’s overspeed limitations for the turbine cannot be exceeded by more than 15 per cent. (10) The air intakes and exhaust for every gas turbine shall be arranged to prevent, to the extent practicable, reingestion of combustion gases. (11) Every multi-engine gas turbine shall have a separate air intake and exhaust, arranged so as to prevent induced circulation through a stopped turbine. (12) All machinery, components and systems essential to the operation of a floating platform shall be designed to function at full rated power at any inclination, up to a maximum angle of (a) in the case of a surface mobile offshore platform, (i) 15 degrees in any direction under static conditions, (ii) 22½ degrees in any direction under rolling dynamic conditions, and (iii) 7½ degrees by bow or stern under rolling dynamic conditions; (b) for a column-stabilized mobile offshore platform, 15 degrees in any direction; and (c) for a self-elevating platform, 10 degrees in any direction. (13) The automatic shut-off device referred to in subsection (5) shall shut off the fuel supply to engines associated with fire pump systems only where overspeeding occurs. (14) Jacking mechanisms for self-elevating platforms shall, where possible, be arranged with redundancy so that a single failure of any component does not cause an uncontrolled descent of the platform.