137Additional precautions

137 Additional precautions (1) A shotfirer in charge of blasting shall, before firing an explosive charge, ensure that: (a) to prevent the entry of a person or vehicle to the place of blasting: (i) all points of access to the place are guarded or locked; or (ii) where the blasting is to be carried out in a public street or on a highway persons and approved warning devices are employed on approaches to the place of blasting;

Dangerous Goods Regulations 1985 40 (b) there is prominently displayed at each point of access to and approaches to the site of the blasting: (i) a sign not less than 1,000 mm x 1,000 mm in size with the words: "DANGER BLASTING OBEY SIGNALS" in white capital letters not less than 150 mm in height on a red background; (ii) where electric detonators are to be used to fire blasting explosives, a sign not less than 1,000 mm x 1,000 mm in size with the words: "DANGER BLASTING SWITCH OFF RADIO TRANSMITTERS" in white capital letters not less than 150 mm in height on a red background; (c) the owners or occupiers of properties adjoining the site of the blasting are advised of the intention to undertake blasting; (d) an approved audible warning signal is given in accordance with section 8.1 of Part 2 of AS 2187 "Explosives – Storage, transport and use "; and (e) where there is a possibility of injury or damage being caused to a person or property by flying rock or other material, the charge is covered with blasting mats or other method of covering approved by an officer. (2) The Competent Authority may require a shotfirer to monitor, in an approved manner, the intensity of ground vibrations arising from blasting, where blasting is carried out in the proximity of a building or other structure and the shotfirer shall monitor the ground vibrations accordingly.