PART XIX GENERAL BLASTING — Firing

After blasting by electricity, a blaster shall not allow another person to enter a place where charges have been fired until the blaster has

disconnected the firing cables from the blasting machine; collected from the site before blasting; and sufficient audible and visual warning is given to persons in or near the danger area;

short-circuited the lead wires; and appropriately disposed after the blasting is completed. roads and approaches to the danger area are guarded or barricaded in order to prevent anyone from entering; and

personally examined the blasting area and given permission for work to proceed. persons and equipment are at a safe distance and under sufficient protective cover.

A blasting meter shall not be used to take measurements pertinent to blasting unless it is approved and designed by the manufacturer for that sole purpose.

Electric blasting circuits shall not be fired from a power transmission line unless a blasting operation is conducted in underground tunnelling and a blasting switch is used.

A blasting switch shall not be used for firing electric blasting circuits from a power line unless it is approved and designed by the manufacturer as suitable for that purpose and constructed so that the door may be closed and locked with the switches in the "OFF" position.

A blaster shall ensure that the blasting switch is kept locked and inaccessible until it is required to fire the explosive charge.

Where an electrical power transmission line is present and electric blasting initiation is to be used, a cable used to fire the blast shall be anchored securely to avoid being thrown into contact with the power lines.

An employer shall ensure that empty explosive cartons and boxes are

Before firing, a blaster shall ensure that