Instructions for Wire Shielded Cable

7.0Prepare Cable

7.1Check to be sure cable size fits within kit size range as shown in Table 1 (page 2).

7.2Prepare cable using dimensions shown in Figure 8 and 9. Refer to Table 3 for semi-con cutback dimension. Be

sure to allow for depth of terminal lug.

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 3

 

 

Jacket Removal Length

 

 

Depth Of Terminal Lug + Growth Allowance

3

(76 mm)

Semi-Con Cutback

 

 

Semi-Con

 

Shield Wires

CableJacket

Figure 8

7.3Bend leading 1 1/2" (38 mm) of exposed shield wires back upon themselves to jacket edge (Figure 9).

 

 

3

(76 mm)

1 1/2

(38 mm)

 

 

 

 

Semi-Con

 

Cable Jacket

Shield Wires

Figure 9

8

78-8117-0985-2 Rev C

Page 8
Image 8
3M 7684-S-8 manual Instructions for Wire Shielded Cable, Sure to allow for depth of terminal lug