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S-2.1, r. 14 - Regulation respecting occupational health and safety in mines
Section 102
Disposition versions
102. When internal combustion engines are used for operating equipment in an underground mine, they shall be diesel-type engines and their use shall be subject to observance of the following conditions:
(1) the ventilation in places where such engines are used shall be sufficient to dilute the contaminants present in the exhaust gases to weighted average exposure values measured in the worker’s respiratory zone; those exposure values shall be:
(a) below 0.4 mg of total carbon per cubic metre of air;
(b) below the exposure values provided for in Schedule I of the Regulation respecting occupational health and safety (chapter S-2.1, r. 13);
(1.1) the sampling and analysis method for diesel particulate matter in terms of total carbon is the method NIOSH 5040: DIESEL PARTICULATE MATTER as it reads in version 3 dated 15 March 2003 published by the National Institute for Occupational Safety and Health (NIOSH), in NIOSH Manual of Analytical Methods (NMAM), Fourth Edition.
The laboratory analysing the total carbon must be certified under a recognized standard such as the international standard ISO/CEI 17025:2005 – General requirements for the competence of testing and calibration laboratories published by ISO. It must be certified by a recognized certifying body, such as the Standards Council of Canada.
(2) notwithstanding paragraph 2 of section 101, when several pieces of equipment operated by diesel engines are used simultaneously in one ventilation circuit, the volume of fresh air shall be:
(a) for motors certified under Part 31 and Part 32 of Title 30, Code of Federal Regulations, Mine Safety and Health Administration, and for non-certified motors, 100% of the flow given for the most demanding unit in terms of ventilation, 75% of the flow given for the second unit and 50% of the flow given for any additional unit, up to a minimum of 2.7 m3 per minute per kW (71 ft3 per minute per HP) at the engine shaft;
(b) for motors certified under CAN/CSA M424.2-M90, Non-Rail-Bound Diesel-Powered Machines for Use in Non-Gassy Underground Mines or under CAN/CSA M424.1-88, Flameproof Non-Rail-Bound Diesel-Powered Machines for Use in Gassy Underground Coal Mines, and, in accordance with the provisions of Schedule VII, 100% of the flow given for each motor used in the ventilation circuit;
(c) equal to or greater than the total of the fresh air flow prescribed in subparagraph a or b, as the case may be, when the diesel engines referred to therein are used simultaneously;
(3) (subparagraph revoked);
(3.1) the addition of an additive to the diesel fuel must not result in the flash point of the fuel being lower than 37.8 °C (100 °F);
(4) the sulphur content of the diesel fuel shall be less than 0.05%;
(5) the engine may not constantly emit black smoke;
(6) every diesel engine shall be fitted with a device for purifying or diluting exhaust gases;
(7) the injection pump of a diesel engine and its governor shall be sealed;
(8) a manual or controlled shut-off valve shall be placed on the fuel line between the tank and the engine;
(9) the terminals of the electric storage battery shall be insulated by a non-conducting material;
(10) the electrical installation of a diesel engine shall have a master switch making it possible to shut off the current at the battery outlet.
For the purposes of subparagraph b of paragraph 2, CAN/CSA M424.2-M90, Non-Rail-Bound Diesel-Powered Machines for Use in Non-Gassy Underground Mines, and CAN/CSA M424.1-88, Flameproof Non-Rail-Bound Diesel-Powered Machines for Use in Gassy Underground Coal Mines, apply to any diesel engine used underground notwithstanding the area of application specified in those standards.
102. When internal combustion engines are used for operating equipment in an underground mine, they shall be diesel-type engines and their use shall be subject to observance of the following conditions:
(1) the ventilation in places where such engines are used shall be sufficient to dilute the contaminants present in the exhaust gases to exposure values measured in the worker’s respiratory zone; those exposure values shall be:
(a) below 0.6 mg of respirable combustible dust per cubic metre of air;
(b) below the exposure values provided for in Schedule I of the Regulation respecting occupational health and safety (chapter S-2.1, r. 13);
(1.1) the sampling and analysis protocol for respirable combustible dust shall be that of the Mining and Mineral Sciences Laboratories, MMSL-CANMET, described in Schedule VI;
(2) notwithstanding paragraph 2 of section 101, when several pieces of equipment operated by diesel engines are used simultaneously in one ventilation circuit, the volume of fresh air shall be:
(a) for motors certified under Part 31 and Part 32 of Title 30, Code of Federal Regulations, Mine Safety and Health Administration, and for non-certified motors, 100% of the flow given for the most demanding unit in terms of ventilation, 75% of the flow given for the second unit and 50% of the flow given for any additional unit, up to a minimum of 2.7 m3 per minute per kW (71 ft3 per minute per HP) at the engine shaft;
(b) for motors certified under CAN/CSA M424.2-M90, Non-Rail-Bound Diesel-Powered Machines for Use in Non-Gassy Underground Mines or under CAN/CSA M424.1-88, Flameproof Non-Rail-Bound Diesel-Powered Machines for Use in Gassy Underground Coal Mines, and, in accordance with the provisions of Schedule VII, 100% of the flow given for each motor used in the ventilation circuit;
(c) equal to or greater than the total of the fresh air flow prescribed in subparagraph a or b, as the case may be, when the diesel engines referred to therein are used simultaneously;
(3) (subparagraph revoked);
(3.1) the addition of an additive to the diesel fuel must not result in the flash point of the fuel being lower than 37.8 °C (100 °F);
(4) the sulphur content of the diesel fuel shall be less than 0.05%;
(5) the engine may not constantly emit black smoke;
(6) every diesel engine shall be fitted with a device for purifying or diluting exhaust gases;
(7) the injection pump of a diesel engine and its governor shall be sealed;
(8) a manual or controlled shut-off valve shall be placed on the fuel line between the tank and the engine;
(9) the terminals of the electric storage battery shall be insulated by a non-conducting material;
(10) the electrical installation of a diesel engine shall have a master switch making it possible to shut off the current at the battery outlet.
For the purposes of subparagraph b of paragraph 2, CAN/CSA M424.2-M90, Non-Rail-Bound Diesel-Powered Machines for Use in Non-Gassy Underground Mines, and CAN/CSA M424.1-88, Flameproof Non-Rail-Bound Diesel-Powered Machines for Use in Gassy Underground Coal Mines, apply to any diesel engine used underground notwithstanding the area of application specified in those standards.
