N.J. Admin. Code § 12:190-7.14

Current through Register Vol. 57, No. 1, January 6, 2025

Section 12:190-7.14 - Initiation with detonating cord

(a) Detonating cord shall be in good condition, and have the proper core load and construction type for the work scheduled. It shall be kept free of kinks and sharp bends.

(b) Detonating cord down lines in blast holes shall be attached to a cap sensitive primer charge. Where the cord load is light, the detonating cord shall be attached to a blasting cap recommended by the manufacturer for this purpose which is to be inserted in the primer charge.

(c) Delayed connectors and blasting caps, used with detonating cords shall be handled with the same safety precautions as other detonators.

(d) Detonating cord lines shall be cut free from the spool when the primer charge is in place.

(e) Splices in the main trunk lines shall be tight square knots. Down lines shall be connected to the trunk lines by tight clove hitch knots at right angles to the trunk lines. Approved manufacturer's connecting devices may be used in place of cord-to-cord knots.

(f) When firing the detonating cord system with electric blasting caps, the caps shall be taped or fastened securely to the trunk line with the closed end of the cap pointing in the same direction the detonating cord is to fire. The cap shall not be attached until just before firing time.

(g) All detonating cord on the surface shall be covered with at least one foot of earth, sand or stone chips.

N.J. Admin. Code § 12:190-7.14

Administrative correction.
See: 29 New Jersey Register 566(a).
Amended by R.1998 d.110, effective 3/2/1998.
See: 29 New Jersey Register 4624(a), 30 New Jersey Register 847(a).
In (g), substituted "All" for "In areas where blast noise could be a problem, all".