The standard double-apron fence is one of the best obstacles that can be made with barbed tape. The effectiveness of this obstacle is increased by (1) raising the top wire to preclude crossing the obstacle by stepping over it and (2) placing low wires 4 inches above the ground to prevent personnel from crawling under the obstacle.

Tying Procedures

In tying barbed tape, use the wraparound tie (fig. 8-7), since the sharp bends of other ties weaken the tape. Steel-wire rings, crimped on, provide effective ties and may be used where available (fig. 8-8).

Splices

Connecting slots at each end of a 164-foot reel provide a quick method of splicing reels of barbed tape

Figure 8-9.-Splicing barbed-steel tape.

Figure 8-10.-Pickets for use with barbed wire.

(fig. 8-9). You can also splice barbed tape by interlocking the twisted barbs of two separate lengths, then completing the splice by affixing one steel-wire ring to each end of the area where spliced (fig. 8-9).