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|  MIL-C-63550E(AR)
3.3.2.5 Cable jacketing. (See 6.3.1.) All cables shall be covered with
the jacketing specified on the assembly drawing. Heat-sealable tape shall be
wrapped with a minimum of 50 percent overlap, forming a water-resistant cover-
ing. Heat-sealable tape shall be tightly wrapped to keep cable diameters to a
minimum (see figure 4). Jacketing shall extend into the boot or transition at
least to the dimensions shown in figures 2, 3, 5, 6, 7, 9, and 11. Multiple
sections of heat-shrinkable tubing may be used in long harness branches, pro-
vided each individual length is at least 36 inches long. In each case, a min-
imum of 2 inches of overlapping tubing shall be required. Bonding of jacket
joints to their mating parts shall be required. This bond shall provide a
water-resistant join. Excess adhesive on the outside of the harness jacket-
ing shall be removed. Heat-shrinkable tubing shall be uniformly shrunk to
minimum diameters determined by the bundle size and shall be water-resistant,
with no cracks, splits, or abrasions. Heat-sealable tape shall be cured in a
hot air oven until it reaches its melting point of 145 10C; cure time
required to achieve melting is typically 90 minutes.
3.3.2.6 EMP shielding. When specified on the cable assembly drawing, tubu-
lar EMP shielding shall be installed over the wire bundle and under the cable
jacketing. At each point where a piece of shielding ends, the shield shall be
trimmed and sealed to eliminate frayed ends. A layer of cable jacketing
extending 1 inch on each end of the shield shall be applied between the wire
bundle and the shield. Each cable branch shall contain one continuous piece
of shield. Shields shall not be spliced. Shielding tape wrap shall be used
at transition points and shall overlap the EMP tubular shielding to the "Y"
dimension given in figure 6. Shielding tape wrap shall be held in place using
either of the methods shown in figures 6 and 7.
3.3.2.7 Cable terminations. Cable terminations shall be as shown in figure
2 or 3. Other methods shall be as detailed on the cable assembly drawing.
Boots, jacketing, and feed-through seals shall be bonded to mating parts with
adhesive unless parts are supplied with adhesive coating. Boots, jacketing,
and feed-through seals shall be fully recovered and water-resistant, with no
cracks, splits, or abrasions. Backshells shall be torqued as specified in
table 1. Unless otherwise specified, all unused contact locations shall be
filled with contacts and all unused grommet feed-through holes shall be
plugged with the plugs supplied with the connector.
3.3.2.8 Cable transitions. Cable transitions shall be as shown in figures
5, 6, 7, 9, and 11. On cables using heat sealable tape transitions, the
transition shall be wrapped before the harness branches are wrapped. Where
tape transitions are used with heat shrinkable tubing, the tubing shall be
installed first.
3.3.2.9 Adhesives. Adhesive application processes shall conform to adhe-
sive manufacturer's specifications.
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