3M 7684-S-8 manual Special Note for Cloth or Paper SEMI-CON Insulation Shield

3.3Wrap ground braid around cable tape shield one complete wrap, trim excess to prevent overlap and secure in place with constant force spring. Wrap spring in same direction as ground braid (Figure 4). Cinch (tighten) the spring after wrapping the final winding.

3.4Select second Scotch® Mastic Strip 2230 from kit and remove white release liners. Apply a second single wrap of mastic over solder block on ground braid and previously applied mastic (Figure 4). Cut off excess.

Constant Force Spring
Tape Shield
Ground Braid
1ST Scotch® Mastic Strip 2230	Trim
Solder Block
2ND Scotch® Mastic Strip 2230
	Cable
	Tape
	Shield
Ground Braid Leg

Figure 4

3.5Wrap two highly stretched half-lapped layers of electrical grade vinyl tape around mastic seal, constant force spring and exposed tape shield (Figure 5).

NOTE: Take care not to cover exposed semi-con insulation shield. A minimum of 1" (25 mm) must be exposed.

SPECIAL NOTE FOR CLOTH OR PAPER SEMI-CON INSULATION SHIELD

In cables with cloth or paper semi-conductive shields, it is recommended the shield be over wrapped with one half- lapped layer of highly stretched semi-conductive rubber tape such as Scotch® Electrical Semi-Conducting Tape 13.

Semi-Con

Tape Shield

Constant Force Spring

Two Half-Lapped Layers of Electrical Grade Vinyl Tape

Scotch® Mastic Strip 2230

Vinyl Tape Marker

Figure 5

78-8117-0985-2 Rev C 5