• The edge of the tape is aligned with the end of the wire insulation
• The tape goes around the circumference of the wire a minimum of two times
• The tape makes a 100 percent overlap.
(9) Assemble one end of the butt splice.
(a) Put the splice in the crimp tool.
(b) Hold the splice in position with light pressure.
(c) Put the wires in the splice. Refer to Figure 144.
Make sure that the wires are in the correct position.
(d) Crimp the splice.
(10) Do Step 9.G.(9) again to assemble the other end of the butt splice.
(11) Put two layers of insulation tape on the splice assembly.
(a) Tightly wind the first layer of tape on the splice assembly.
Make sure that the layer:
• Starts at the rear end of the layers of tape on the two wires on one end of the splice
assembly
• Stops at the rear end of the layers of tape on the two wires on the other end of the
splice assembly
• Makes a 50 percent overlap.
(b) Tightly wind the second layer of tape on the splice assembly in the opposite direction of the
first layer.
Make sure that the layer:
• Starts where the first layer stops
• Stops where the first layer starts
• Makes a minimum 50 percent overlap.
10. SEALED SPLICE CONFIGURATIONS WITH MECHANICAL FERRULES FOR SHIELDED WIRE AND
SHIELDED CABLE
A. Splice Assembly Configurations
For the conditions that are applicable for:
• The repair of a wire or a cable with a splice, refer to Subject 20-10-13
• The selection of the correct sealed splice configuration, refer to Paragraph 1.C.
ASSEMBLY OF SPLICES
707, 727-787
STANDARD WIRING PRACTICES MANUAL
20-30-12
Page 169
Jun 15/2021D6-54446
ECCN 9E991 BOEING PROPRIETARY - See title page for details
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