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NL · Occupational Health and Safety Regulations (workplace standards) · Article 442 · clause 442 · NLR 5/12

PART XIX GENERAL BLASTING — Misfire

442

(1) Where a charge has misfired or is suspected of having misfired, a person shall not move about the danger area until the expiry of the required waiting time in subsection (2).

442(2)

Where a charge has misfired or is suspected of having misfired, a blaster shall

442(a)

where using a safety fuse, wait 30 minutes after the last charge was due to explode before entering the blasting area; the site shall be fully illuminated;

442(b)

where using a means of initiation other than a safety fuse, wait 10 minutes after the last charge was due to explode before entering the blasting area; and the work shall be directly and constantly supervised by a blaster; and

442(c)

where using an electric detonator, immediately disconnect the firing cable from the blasting machine or blasting switch and shunt the lead line and at the end of the required waiting time, approach the misfired hole to assess the potential hazard. precautions shall be taken to prevent injury from accidental explosion.

442(3)

Where there is a misfire or a suspected misfire, a person shall not use metallic equipment in a blasting area until a blaster has inspected the site and authorized the use of the equipment and the following procedure shall be used:

442(4)

An employer shall ensure that a misfire is treated at a safe and suitable time under the direction of a blaster in order to ensure the removal of hazards from the misfire in a manner that complies with these regulations.

442(5)

A blaster, in consultation with a supervisor, shall determine the safest and most practicable means of treating a misfire, either by reblasting or otherwise, and shall ensure compliance with these regulations.

442(6)

An employer shall, where practicable, ensure that the cause of a misfire is established and that corrective action is taken to prevent recurrence.

Not legal advice. Verify the cited article against the signed agreement.