Boeing 707 - Unsealed Butt Splice Configurations - more than One Wire to more than One Wire

To Next Page

To Previous Page

Make sure that the wire is in the correct position.

(d) Crimp the splice.

(9) Do Step 6.B.(8) again to assemble the other end of the splice.

C. Unsealed Butt Splice Configurations - More Than One Wire to More Than One Wire - Insulated

Butt Splice

NOTE: A satisfactory alternative for an insulated butt splice on more than one wire is an uninsulated

butt splice and sleeves on more than one wire. Refer to Paragraph 6.E.

(1) Make a selection of an insulated butt splice from Table 10.

Make sure that the splice has the smallest CAU range that can accept the total CAU of the

conductor. Refer to Paragraph 1.D. for the procedure to calculate the CAU of the conductor.

(2) Find the crimp barrel size of the splice from Table 10.

(3) Make a selection of a crimp tool from Table 40.

(4) Remove the necessary length of insulation from the end of each wire. Refer to Subject 20-00-15.

(5) For butt splices with an insulation grip, put the wires in the splice. Refer to Figure 28.

Make sure that for each wire:

• The end of the conductor can be seen in the inspection hole

• The end of the conductor does not make an overlap with the wire stop

• The wire insulation is not in the crimp barrel

• If the wire insulation can go into the insulation grip, the insulation grip makes an overlap with

the wire insulation

• If the wire insulation can go into the splice insulation, the splice insulation makes an overlap

with the wire insulation

• If the wire insulation of a AWG 10 and smaller wire cannot go into the splice insulation, the

end of the wire insulation is a maximum of 0.25 inch from the end of the splice insulation

• If the wire insulation of a AWG 8 and larger wire cannot go into the splice insulation, the end

of the wire insulation is a maximum of 0.37 inch from the end of the splice insulation.

NOTE: The wire insulation, the crimp barrel, and the conductor can be seen through the

insulation of the butt splice.

ASSEMBLY OF SPLICES

707, 727-787

STANDARD WIRING PRACTICES MANUAL

20-30-12

Page 70

Feb 15/2021D6-54446

ECCN 9E991 BOEING PROPRIETARY - See title page for details

Boeing 707 - Unsealed Butt Splice Configurations - more than One Wire to more than One Wire - Insulated Butt Splice