OHS Code Explanation Guide

Published Date: July 01, 2009
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Part 36 Mining

Section 662 Transport underground

This section is intended to provide strict specifications related to the transportation of explosives into an underground mine environment. Strict compliance and enforcement is expected from the employer in the interest of overall worker safety.

Subsection 662(1)

Detonators must be kept separate from explosives to avoid accidental unplanned detonation. The quantity of explosives that can be taken underground by a worker is limited to the quantity that can be used in one work shift. By limiting the quantity taken underground at one time by each worker, the OHS Code attempts to ensure that surplus supplies are not inadvertently left behind. Further, explosive inventories are easier to control.

Subsection 662(2)

Although the Director may exempt a mine from the requirements of subsection 622(1), such an exemption would only be provided if evidence of an “equivalent to, or better than” system of control could be demonstrated.

Subsection 662(3)

The purpose of this subsection is to control explosive product. A misplaced explosive could present a significant safety hazard. For that reason, the explosive-containing case or canister must be kept closed as much as possible.

Subsection 662(4)


Subsection 662(5)

The underground mine blaster must ensure that when multiple cases or canisters are present at the working face, the cases or canisters are kept as far apart as reasonably practicable. Doing so limits the likelihood that one case or canister exploding will cause another one to explode or be damaged.

Subsection 662(6)

Because electric detonators can be very sensitive to extraneous electric current, a worker carrying electric detonators must not enter any room where cap lamps or related batteries are being charged.