3M 7684-S-8 manual Instructions For Tape Shielded Cable, Prepare Cable

Instructions For Tape Shielded Cable

2.0Prepare Cable

2.1Check to be sure cable size fits within kit size range as shown in Table 1 (page 2).

2.2Prepare 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	2 - 350	400 - 650
Growth Allowance	1/4” (6 mm)	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	25/28 kV	35 kV	Semi-con
		AWG / kcmil	AWG / kcmil	AWG / kcmil	Cutback
	0.83" - 1.21"	4/0 - 300	2/0-3/0	2 - 2/0	13.5"
7684-S-8	(21,1 - 30,7 mm)	(120 - 150 mm2)	(70 - 95 mm2)	(35 - 70 mm2)	(342,9 mm)
	0.98" - 1.53"	350 - 500	4/0 - 250	3/0 - 4/0	13.0"
	(24,9 - 38,9 mm)	(185 - 240 mm2)	(120 - 150 mm2)	(95 - 120 mm2)	(330,2 mm)

Table 2

	Jacket Removal Length
Depth Of Terminal Lug + Growth Allowance
3” (76 mm)	Semi-Con Cutback
1 1/ 2”
(38 mm)
	Semi-Con
Tape Shield
Cable Jacket

Figure 1

78-8117-0985-2 Rev C 3