Butt Splice Connector for TFH Cable. Permalert PAL-AT AT40K, PAL-AT AT50C, PAL-AT AT80K, PAL-AT AT20C, PAL-AT AT20K

7 Cable Connectors

7.2.4 Butt Splice Connector for TFH Cable

Butt splice cable connectors can be used with TFH cable when the cable is not "pullable" and the connector is not a calibration point. In some applications, it is used to prevent water from traveling into the connector and creating a short. The cable MUST NOT be pulled after connectors are installed.

Each connector assembly consists of: 1 butt splice, 1 piece of 3:1 heat shrink tubing and 1 tie wrap.

Steps A thru J describe the procedures that must be followed to install a connector.

Step A Measure and cut the required length of cable.

Step B Slide the heat shrink tubing onto the sensor cable. Keep the heat shrink tubing at least 6" from the end of the sensor cable. Slide the overbraid and jacket back several inches.

Step C Pull the cable braid back approximately 3" from the end of each sensor cable. This will cause the braid to flair out slightly and expose the spacer material and the center conductor.

Step D Cut approximately 1½" of the exposed spacer material and center conductor.

Step E Cut an additional ¾" of the exposed spacer material. (DO NOT nick the insulation on the center conductor when the spacer material is removed.)

Step F Remove approximately ¼" of insulation from the center conductor.

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PAL-AT Installation Manual

Step G Slide the 2 center conductors into the butt splice. Make sure the conductor is fully inserted into the splice. The insulation on the center conductors must be undamaged to the crimp portion of the butt splice. Crimp the 2 center conductors in the splice. Heat the butt splice's shrink tubing until adhesive starts to flow from the end of the tubing. (Note: Make sure that the piece of 3:1 heat shrink tubing is not heated at this time.)

Step H Slide the braid from one side over the butt splice. The end of the braid MUST BE at least ¼" past the end of the butt splice. Use a small amount of electrical tape to tape the end of the braid to the spacer material and center conductor. (Make sure the tape IS NOT over the butt splice.)

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