§57.6401. Shunting.

30 C.F.R. § 57.6401

Except during testing—

(a)

Electric detonators shall be kept shunted until connected to the blasting line or wired into a blasting round;

(b)

Wired rounds shall be kept shunted until connected to the blasting line; and

(c)

Blasting lines shall be kept shunted until immediately before blasting.

Notes, amendments, and revision history

Source: 61 FR 36801, July 12, 1996, unless otherwise noted.

Authority: 30 U.S.C. 811.

Source: 50 FR 4082, Jan. 29, 1985, unless otherwise noted.