Figure 32. Timing the burning rate of the time blasting fuse.
Prepare Time Fuse. After the burn rate of the time fuse has been determined, cut the
necessary length of time fuse. The length of the time fuse should be long enough to permit the
person detonating the charge to reach a safe distance from the explosion by walking at a normal
pace. Cut two lengths of time fuse and attach fuse igniter. One length is to be used for dual
priming. The ED SOP will dictate burning time requirements.
Prepare Blasting Cap. Take a blasting cap (Figure 33) from the cap box. Gently slip the
blasting cap over the free end of the M700 time fuse or the safety fuse. See Figure 34. Make
sure the cap is in contact with the time fuse. Crimp the blasting cap at a point one-eighth to one-
quarter of an inch from the open end. See Figures 35 and 36, Pages 25 and 26.
Figure 33. Nonelectric blasting cap.