Specifications

AC 43.13-1B 9/8/98
Page 11-62 Par 11-158
T
ABLE 11-13. Allowable nicked or broken strands.
Maximum allowable nicked and broken strands
Wire Size Conductor material Number of strands per
conductor
Total allowable nicked and
broken strands
24-14
12-10
8-4
2-1
0-00
000
0000
8-000
Copper
or
Copper Alloy
Aluminum
19
37
133
665-817
1,045-1,330
1,665-
2,109-
All numbers of strands
2 nicked, none broken
4 nicked, none broken
6 nicked, 6 broken
6 nicked, 6 broken
6 nicked, 6 broken
6 nicked, 6 broken
6 nicked, 6 broken
None, None
of the strap would permit wiring to move
against parts which could damage the insula-
tion and foul mechanical linkages or other
moving mechanical parts. They also may not
be used where they could be exposed to UV
light, unless the straps are resistant to such ex-
posure.
a. Lacing. Lace wire groups or bundles
inside junction boxes or other enclosures.
Single cord-lacing method, shown in fig-
ure 11-15, and tying tape, meeting specifica-
tion MIL-T-43435, may be used for wire
groups of bundles 1-inch in diameter or less.
The recommended knot for starting the single
cord-lacing method is a clove hitch secured by
a double-looped overhand knot as shown in
figure 11-15, step a. Use the double cord-
lacing method on wire bundles 1-inch in di-
ameter or larger as shown in figure 11-16.
When using the double cord-lacing method,
employ a bowline on a bight as the starting
knot.
b. Tying. Use wire group or bundle ties
where the supports for the wire are more than
12 inches apart. A tie consists of a clove hitch,
around the wire group or bundle, secured by a
square knot as shown in figure 11-17.
c. Plastic Ties. Refer to Para-
graph 11-220 and table 11-21.
11-159. INSULATION TAPE. Insulation
tape should be of a type suitable for the appli-
cation, or as specified for that particular use.
Insulation tape should be used primarily as a
filler under clamps and as secondary support.
Nonadhesive tape may be used to wrap around
wiring for additional protection, such as in
wheel wells. All tape should have the ends
tied or otherwise suitably secured to prevent
unwinding. Tape used for protection should be
applied so that overlapping layers shed liquids.
Drainage holes should be provided at all trap
points and at each low point between clamps.
Plastic tapes, that absorb moisture or have
volatile plasticizers that produce chemical re-
actions with other wiring, should not be used.
(Reference MIL-W-5088.)