(2) Notwithstanding subsection 37(2), pipelines under roadways on railway right-of-way shall be enclosed in an encasing pipe or be embedded in solid reinforced concrete with a minimum thickness not less than one-half the nominal pipe diameter. The top of the encasing pipe or enclosure shall be at least three feet below the surface of the roadway and shall be capable of supporting all overhead traffic.
(2) All grounded pipelines for Class I flammable liquids shall be bonded at the joints with one No. 4 or two No. 6 A.W.G. electrical connections if flow to ground is interrupted by a gasket, joint compound or other non-conductive barrier.
(2) Hose and hose connections shall be designed to have a minimum bursting pressure of not less than five times the maximum working pressure to which they may be subjected and shall provide electrical continuity.
(3) The hose, as assembled for use, shall be tested for leaks at twice the maximum working pressure before being put in service and should be tested annually thereafter at 1 1/2 times the working pressure and visually inspected once a month.
41 (1) Stationary internal combustion engines or non-explosion proof motors should not be used for the operation of Class I flammable liquid pumps. However, when the use of such engines or motors is necessary, they shall be installed in accordance with the requirements of this section.
(2) Internal combustion engines or non-explosion proof motors, if housed, shall be isolated from the pump by a non-combustible and vapour-proof wall. Where shafts pierce the dividing wall, vapour-proof packing glands shall be installed.
(3) The spark plugs and ignition system of an internal combustion engine shall be shielded and the engine shall be equipped with a spark arrestor muffler.
(4) The engine exhaust shall terminate outside the building.
(5) The fuel storage tank for an internal combustion engine shall be located outside the building.
(6) The air intake to the carburetor of an internal combustion engine shall be located at least 18 inches above the pumphouse floor.
(7) The entire system of an internal combustion engine or of a non-explosion proof motor shall be maintained in good operating condition at all times.
(8) The main control switch for a non-explosion proof electric motor or the fuel shut-off valve or spark grounding device for an internal combustion engine shall be so located that the motor or engine may be stopped quickly in an emergency.
42 (1) Except as provided in subsection (2), a warehouse, pumphouse, or other similar building used for storing or handling flammable liquids and structures attached thereto shall be constructed of non-combustible materials and unless otherwise authorized by the Commission shall not be more than one storey in height.
(2) Notwithstanding subsection (1), buildings with a floor area not exceeding 2,000 square feet may have a wooden frame. The roof structure may be constructed of any material, provided it has a fire resistance rating of at least two hours.
(3) The exposed wall of a building used for storing or handling flammable liquids, if located less than 10 feet from any property line which has been or may be built upon, shall be of blank masonry construction with a fire resistance rating of at least four hours.
(4) Below ground rooms, basements or pits are prohibited under any building that contains flammable liquids or is located within 50 feet of a Class I flammable liquid storage tank exceeding 1,500 Imperial gallons capacity.
(5) Warehouses, pumphouses and all other enclosures where flammable liquids are stored or handled shall be adequately ventilated with permanently open louvers located near floor level. It is recommended that the louvered ventilation area be at least one square foot per 50 square feet of floor space and be equally divided between opposite walls. If natural ventilation is not effective, then mechanical ventilation should be provided.
(6) Containers or drums used for the storage or measuring of flammable liquids, whether filled, partly filled or empty, shall not be stored in the pumphouse.
(7) If it is necessary to heat warehouses or any other building or enclosure where flammable liquids are stored or handled, the heat shall be supplied by low pressure steam, hot water, or other enclosed heat transfer media, and the heating source shall be located as prescribed in subsections (8) and (9).
(8) Except as provided in subsection (9), a building housing any heat source shall be constructed as prescribed in this section and shall be located not less than 10 feet and as much more as is practicable, from any storage tank, loading or unloading rack or terminal or any building or enclosure containing flammable liquids.
(9) An office attached to a warehouse or other building where flammable liquids are stored or handled may be heated by Class I, Division I, Group D electric heaters if the office is separated from the warehouse or other building by a blank wall with a fire resistance rating of at least two hours.
PART VILoading and Unloading
43 (1) During loading and unloading operations, the tank car shall be protected on the connected end or ends of the siding by a sign of metal or other suitable material 12 inches by 15 inches in size and reading “STOP — TANK CAR CONNECTED”. The word “STOP” shall be in letters at least four inches high and the other words in letters at least two inches high. The letters shall be white on a blue background.
(2) The “STOP — TANK CAR CONNECTED” sign shall be placed on the tank car, or the loading or unloading track by the party responsible for the loading or unloading operations in such a manner that will ensure its visibility to the crew of an engine approaching the tank car on the same track.
(2) Tank cars shall be disconnected from pipelines or hose lines immediately after the completion or suspension of loading or unloading operations.
(3) At least one experienced operator supplied by the party responsible for the loading or unloading operations shall be in attendance on the installation site and shall be responsible for the safety of the transfer operations during the entire period that the tank car is connected to the loading or unloading racks or terminals.
(4) Loading or unloading operations shall be carried out in daylight only unless adequate permanent lighting installed in accordance with section 54 is used.
45 Except as provided in Schedule II, the direct transfer of Class I flammable liquids between tank cars and tank trucks or drums is prohibited on carrier’s right-of-way.
46 All tracks, racks, terminals and piping systems used for loading or unloading Class I flammable liquids and crude petroleum shall be grounded and bonded in accordance with the requirements of the Electric Sparks Prevention Regulations.
47 Loading or unloading racks shall be constructed of metal, concrete or other material of equivalent permanence, strength and fire resistance.
48 (1) When the carrier’s track is a team or business track, it is recommended, when practicable, that Class I flammable liquid tank cars be protected during loading or unloading operations by a locked derail or switch located at least one car length from the tank car on the connected end or ends of such team or business track.
(2) The loading or unloading of Class I flammable liquids from the bottom outlet of a tank car located on a team or business track is not permitted unless specifically requested by the applicant and approved by the Commission. Bottom unloading is prohibited less than 25 feet from the main track.
(3) The procedure for loading or unloading tank cars as detailed in section 74.561 of the Regulations for the Transportation of Dangerous Commodities by Rail shall be followed.
(2) No combustible or dangerous commodities other than those sanctioned by the approving order shall be stored on the installation site.
50 Defective piping, valves or fittings shall be repaired or replaced immediately.
51 Smoking and the use of portable open flame lights or equipment is prohibited, except in isolated, clearly designated safe areas. Signs to this effect shall be posted at plant entrances, storage tanks, loading and unloading sites.
52 Welding is prohibited within 100 feet of a Class I flammable liquid or a crude petroleum loading or unloading site while loading or unloading operations are in progress. At other times, welding may be permitted only under close supervision and in accordance with the provisions of Canadian Standards Association Pamphlet W-117-1952 or subsequent edition.
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