should be used as a minimum for installation perimeter security and for
conventional arms and ammunition security at bulk storage facilities. NOTE:
It is not intended that because of construction design, the fence cannot have
a top guard placed on it.
This is purely the commander's option, if he so
desires, to have one added.
The FE-6 fence provides a commander with more
security in that it is constructed with a seven-foot fabric and a one-foot
top guard facing upward and outward at a 45-degree angle toward the threat
(facing away from the protected area). Finally, the FE-7 fence provides even
The fence is also constructed of a seven-foot fabric.
However, the top guard is constructed with a "Y" top guard. Both outriggers
are facing upward and outward at a 45-degree angle.
One facing the threat
and the other facing the protected facility.
Nine-gauge or heavier wire,
galvanized, is used with mesh openings not larger than 2 inches. The wire is
twisted and barbed selvage at the top and bottom prevents the fence from
unraveling. Posts may be metal or concrete, and they are to be set apart in
10 foot increments.
The fence is to be securely fastened.
If painted, a
nonreflective color will be used. On soft ground, the fence must reach below
the surface deeply enough to compensate for shifting soil or sand.
(1) Chain link fencing is durable, strong, and low in maintenance
(2) It is used for protection of permanent security areas.
(3) Openings in this type of fencing are small enough to deter the
passing through of some stolen articles.
b. Barbed Wire.
Standard barbed wire is twisted, double-strand #12-
gauge wire. It has 4-point barbs placed an equal distance apart. When the
purpose of a fence is to deter human trespass, it should not be less than 7
feet high, excluding the top guard. It must be tightly stretched and firmly
affixed to posts not more than 6 feet apart.
Distance between strands of
wire should not exceed 6 inches.
At least one wire will be interlaced
vertically and midway between posts.
Fences of shorter heights are allowed
when the purpose is to separate the boundary of government property.
(2) It is also used for perimeter fences at vast isolated posts.
(3) Handling barbed wire is difficult.
Standard concertina is a wire coil of high-strength,
steel, barbed wire. It is clipped together at intervals to form a cylinder.
Opened, it is 50 feet long and 3 feet in diameter. Concertina should be laid
with one roll on top of another, in a pyramid arrangement.
A minimum of
three rolls should be used.