Figure 28. Nonelectric explosive initiating demolition equipment set.
Test Burning Rate of Time Blasting Fuse. There are two types of interchangeable fuses-
safety fuse and M700 time fuse. See Figure 29. Using the M2 crimpers, cut off a 3-foot length of
time blasting fuse. See Figure 30. Loosen the cap on the M60 fuse igniter and remove the
shipping plugs. Attach the igniter to one end of each length of time fuse. To do this, insert the
time fuse into the end of the igniter as far as possible. Tighten the fuse holder cap sufficiently to
hold the fuse in place. See Figure 31. Ignite the fuse with the igniter. Note the time it takes for
the fuse to burn. The burning rate will vary from 30 to 45 seconds per foot. Compute the burning
rate per foot by dividing the time in seconds by the length in feet. See Figure 32, Page 24.