Splicing Twisted Or Shielded Cable

Twisted/shielded cable is used in order to protect wiring from electrical noise. Two-conductor cable of this construction is used between the radio and the Delco-Bose(R) speaker/amplifier units and other applications where low level, sensitive signals must be carried. Follow the instructions below in order to repair the twisted/shielded cable.

1. Remove the outer jacket (1). Use care not to cut into the drain wire of the mylar tape.
Fig 1: Identifying Outer Jacket Of Twisted Or Shielded Cable
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2. Unwrap the tape. Do not remove the tape. Use the tape in order to rewrap the twisted conductors after the splice is made.
   Fig 2: Preparing Cable For Splicing

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3. Prepare the splice. Untwist the conductors and follow the splicing instructions for copper wire. Staggering the splices by 65 mm is recommended.

   Important:  Apply the mylar tape with the aluminum side inward. This ensures good electrical contact with the drain wire.

4. Re-assemble the cable.
   • Rewrap the conductors with the mylar tape.
   • Use caution not to wrap the drain wire in the tape (1).
   Fig 3: Identifying Drain Wire & Repaired Cable
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   • Follow the splicing instructions for copper wire and splice the drain wire.
   • Wrap the drain wire around the conductors and tape with mylar tape.
   Fig 4: Identifying Taped Cable Splice

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5. Tape over the entire cable. Use a winding motion when you apply the tape.