3M 7684-S-8 Manual De Usuario
78-8117-0985-2 Rev C
3
Instructions For Tape Shielded Cable
2.0 Prepare Cable
2.1 Check to be sure cable size fits within kit size range as shown in Table 1 (page 2).
2.2 Prepare cable using dimensions shown in Figure 1. Be sure to allow for depth of terminal lug. Refer to
Table 2 for semi-con cutback dimension. If necessary to prevent tape shield from unrolling, hold down edge
with a single wrap of 3M™ EMI Copper Foil Shielding Tape 1181.
NOTE: Provide additional exposed conductor distance to account for growth during crimping of ALUMINUM
lugs or connectors as follows:
Aluminum Connector
Growth Allowance
2 - 350
1/4” (6 mm)
400 - 650
1/2" (13 mm)
NOTE: It is imperative to remove all remnants of the semi-con layer, even if the semi-con layer comes off as one
layer. There should not be any remaining black areas, or particles, on the cable insulation layer.
Kit Number
Insulation 0.D.
15 kV
AWG / kcmil
25/28 kV
AWG / kcmil
35 kV
AWG / kcmil
Semi-con
Cutback
7684-S-8
0.83" - 1.21"
(21,1 - 30,7 mm)
4/0 - 300
(120 - 150 mm
2
)
2/0-3/0
(70 - 95 mm
2
)
2 - 2/0
(35 - 70 mm
2
)
13.5"
(342,9 mm)
0.98" - 1.53"
(24,9 - 38,9 mm)
350 - 500
(185 - 240 mm
2
)
4/0 - 250
(120 - 150 mm
2
)
3/0 - 4/0
(95 - 120 mm
2
)
13.0"
(330,2 mm)
Table 2
1 1/ 2”
(38 mm)
Jacket Removal Length
3” (76 mm)
Semi-Con
Tape Shield
Depth Of Terminal Lug + Growth Allowance
Cable Jacket
Semi-Con Cutback
Figure 1