For the assembly of the terminal lugs for the 777 ELMS panel, refer to Subject 20-15-21.
1. PART NUMBERS AND DESCRIPTION
A. General Data
Refer to Subject 20-30-14 for the assembly these terminals:
• BACT12AW()
• BACT12AY()
• BACT13K()
• BACT13L()
• BACT13T()
• Amp (Tyco) CopAlum terminals
• MS25435 and Thomas & Betts aluminum terminals.
Refer to Subject 20-30-07 for the assembly of these aluminum terminals with aluminum wire:
• BACT12BC()
• BACT12BD()
• BACT12BE()
• BACT12BF()
• BACT12BG()
Refer to Subject 20-30-15 for the assembly of Amp (Tyco) Faston terminals.
Refer to Subject 20-20-14 for the procedures to attach the terminals of the BACC13AU, BACC13AW,
and BACC13AY Current Return Network to structure or equipment.
Refer to Subject 20-30-00 for the:
• The procedures to attach terminal lugs to equipment
• The configuration of the terminal lugs attached to equipment
• The installation of colored identification sleeves on terminals on three phase power wires.
Refer to Subject 20-30-22 for the:
• Assembly of a terminal lug with more than one conductor
• Assembly of a terminal lug with a conductor that is smaller than the crimp barrel size of the
terminal lug
• Assembly of a terminal lug with a wire size that is not given in this Subject
• Assembly of a terminal lug with a wire that has an insulation O.D. that is smaller than the
insulation grip of the terminal lug.
If a terminal lug that has the same size hole as the stud is not available, these configurations of
terminals lugs and studs are satisfactory alternatives:
• A terminal lug that has a size 10 hole on a size 8 stud
• A terminal lug that has a size 8 hole on a size 6 stud
• A terminal lug that has a size 6 hole on a size 4 stud
• A terminal lug that has a size 4 hole on a size 2 stud.
For the Circular Area Units (CAU) of a conductor, refer to Table 1.
CAU can be calculated if the Circular Mil Area (CMA) of a conductor is known. Refer to Figure 1.
NOTE: The circular mils of a conductor can be found in all wire tables. If the tables are not available,
the CMA can be calculated. Refer to Figure 1.
ASSEMBLY OF INSULATED AND UNINSULATED TERMINAL LUGS
707, 727-787
STANDARD WIRING PRACTICES MANUAL
20-30-11
Page 2
Oct 15/2017D6-54446
ECCN 9E991 BOEING PROPRIETARY - See title page for details
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