ASSEMBLY OF NONELECTRIC SYSTEM

TM 9-1300-277

NOTE

d. The preparation of initiators and the priming of

All fuses in the same roll should

explosives will not be performed in advance of

requirements. Prepared initiators, if not used, will be

burn at the same rate; although, rate

expended. They will not be returned to explosive

burning

may

vary

from

storage locations.

approximately 98 to 148 seconds per

meter (30 to 45 seconds per foot) in

different rolls. The M700 fuse burns

e. Only sufficient explosives or initiators to meet

at approximately 131 seconds per

the requirement of the operation involved will be brought

meter (40 seconds per foot).

to the disposal site.

f. Personnel engaged in demolition work shall

have ample time to reach shelter affording overhead

and frontal protection. The minimum distance between

shelter and destruction pit or site shall be in accordance

with TM 91300-206 and DARCOM-R 385-100.

5-4. ASSEMBLY OF NONELECTRIC SYSTEM

Assemble a nonelectric system as instructed in a

through m below:

WARNING

TIME BLASTING FUSE WITH A

ROUGH JAGGED CUT ACROSS THE

Figure 5-2. Holding, cutting, and capping time

END CAN CAUSE A MISFIRE OF THE

blasting fuse and detonating cord.

BLASTING CAP.

b. Cut off 0.91 meters (3 feet) of fuse and check

NOTE

burning rate. Ignite fuse with fuse igniter if available

Cutting off at least 15 centimeters (6

(par. 5-5), or cut a slit near one end of fuse, insert a

inches) of fuse will reduce the

match head into split, and light match (fig. 5-3). Note

possibility of a misfire from a damp

time it takes for fuse to burn. Compute burning rate.

powder train.

Compute length of fuse necessary to permit the person

detonating the charge to reach shelter or a safe distance

by walking at a normal pace before the explosion.

a. Cut and discard at least 15 centimeters (6-inch

lengths) from free end of fuse. Cut will be made with

cutting jaws of M2 crimper (fig. 5-2). If crimper does

c. Cut necessary length of fuse squarely across. A

not have clean sharp jaws, use a sharp knife to cut the

minimum of 0.91 meters (3 feet) will be used.

fuse. To assure that the fuse is cut square when using

the knife, cut fuse against a solid wooden surface.

NOTE

Omit the following step if a priming

WARNING

adapter is not being used.

TEST BURNING OF TIME BLASTING

FUSE

WILL

PERFORMED

d. Pass end of time blasting fuse through priming

DOWNWIND AT A MINIMUM SAFETY

adapter (fig. 5-6).

DISTANCE OF 7.5 METERS (25 FEET)

FROM BLASTING CAPS OR OTHER

e. Take one nonelectric blasting cap (fig.

5-6)

EXPLOSIVES.

from cap box.

Change 2

5-2