Code of Federal Regulations · Section

§ 56.6404 — Separation Of Blasting Circuits From Power Source

30 C.F.R. § 56.6404

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(a) Switches used to connect the power source to a blasting circuit shall be locked in the open position except when closed to fire the blast.

(b) Lead wires shall not be connected to the blasting switch until the shot is ready to be fired.

30 C.F.R. § 56.6403 30 C.F.R. § 56.6405

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