How far from a blasting area should you turn off a 2-way radio?

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Get ready for the West Virginia Surface Coal Mine Health and Safety Test. Prepare with flashcards and multiple choice questions with hints and explanations. Ace your exam!

Multiple Choice

How far from a blasting area should you turn off a 2-way radio?

Explanation:
In blasting operations, anything that could inadvertently start a detonation must be kept out of the blast area. A handheld two-way radio can emit radio frequency energy or create a disturbance that might affect the blasting circuit. To minimize that risk, the rule is to turn off the radio within 350 feet of the blasting area. This radio-off zone reduces the chance of accidental initiation from RF energy or electrical interference as crews coordinate the blast. After the area is secured and the blast is complete, radio use can resume under the supervisor’s direction.

In blasting operations, anything that could inadvertently start a detonation must be kept out of the blast area. A handheld two-way radio can emit radio frequency energy or create a disturbance that might affect the blasting circuit. To minimize that risk, the rule is to turn off the radio within 350 feet of the blasting area. This radio-off zone reduces the chance of accidental initiation from RF energy or electrical interference as crews coordinate the blast. After the area is secured and the blast is complete, radio use can resume under the supervisor’s direction.

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