(4) Make a selection of a Temperature Grade B or higher insulation tape from Table 52.
Make sure that the tape has a width of 0.5 inch minimum to 1.0 inch maximum.
(5) Prepare each end of the shielded wires.
Refer to:
• Figure 158
• Subject 20-00-15 for the outer jacket removal procedures.
(a) Remove a 1.25 inch minimum length of the outer jacket from the end of the wire.
(b) Remove the necessary length of the shield from the end of the wire.
Make sure that the remaining shield is 0.31 inch ±0.06 inch.
(c) Wind a layer of the insulation tape on the outer jacket of each wire 0.50 inch ±0.06 inch
farther than the end of the outer jackets.
Make sure that:
• The tape goes around the circumference of the wire a minimum of two times
• The tape makes a 100 percent overlap.
(6) Cut the necessary length of the shield sleeve material.
Make sure that the ends of the shield sleeve material extend farther than the rear end of the
ferrules on each end of the shield splice.
(7) Put these components on the end of one pair of shielded wires:
• The outer ferrule
• The inner ferrule.
(8) Put these components on the end of the other pair of shielded wires:
• The outer ferrule
• The inner ferrule
• The shield sleeve material.
NOTE: If it is necessary, the strands at the end of the shield sleeve material can be moved apart
to make it easier to put the shield sleeve material on the wire.
SHIELDED WIRE PREPARATION
Figure 158
ASSEMBLY OF SPLICES
707, 727-787
STANDARD WIRING PRACTICES MANUAL
20-30-12
Page 188
Jun 15/2021D6-54446
ECCN 9E991 BOEING PROPRIETARY - See title page for details
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