80Manufacture of ammonium nitrate explosive mixture in

80 Manufacture of ammonium nitrate explosive mixture in vehicles (1) Subject to subregulation (2), ammonium nitrate explosive mixture shall not be manufactured in a vehicle unless: (a) the vehicle is powered by a compression ignition engine, utilizing fuel having a flash point not less than 61°C; (b) the exhaust system of the vehicle: (i) discharges away from any tanks or accessories at a level not lower than the top of the highest part of the vehicle; and (ii) is separated from the vehicle along its vertical length by a shield not less than 100 mm larger in diameter than the exhaust pipe, which shield has the front side left open or perforated to the extent of not less than 60% for one-third of its circumference; (c) where the engine or exhaust system other than the vertical section, extends beyond, or is exposed at the rear of the cabin, the engine and exhaust is shielded from overhead spillage by a metal shield which provides not less than 500 mm separation distance between the shield and any hot portion of the engine or exhaust system, and a separation distance of not less than 75 mm between the shield and any portion of the vehicle used for carrying ingredients for use in the manufacture of the ammonium nitrate explosive mixture; (d) all electrical equipment is located to the rear of the cabin of the vehicle in accordance with Part 1 of AS 1076 "Code of practice for selection, installation and maintenance of electrical apparatus and associated equipment for use in explosive atmospheres (other than mining applications)". (e) the injector or other device for loading, fitted to the vehicle, is electrically continuous with the vehicle and has a resistance of not more than 2 ohm for its total length; (f) all wiring outside and to the rear of the cabin of the vehicle is enclosed in conduit and each circuit is protected by a fuse or manual reset circuit breaker which shall be not more than the rated current carrying capacity of the conductor; and

Dangerous Goods Regulations 1985 24 (g) any battery in the vehicle is firmly secured to prevent movement in the event of the overturn of the vehicle and is fitted with an insulated cover and a cut-off switch which is located in a position that is easily accessible and clearly labelled. (2) Notwithstanding subregulation (1), the Competent Authority may approve the manufacture of ammonium nitrate explosive mixture in a vehicle which does not comply with the requirements of subregulation (1). (3) A vehicle used for the manufacture of ammonium nitrate explosive mixture shall not be used for the storage or conveyance of detonators or other explosives.