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Splices and Joints

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Wiring Techniques

Course No: E03-007
Credit: 3 PDH

A. Bhatia

Continuing Education and Development, Inc.
9 Greyridge Farm Court
Stony Point, NY 10980
P: (877) 322-5800
F: (877) 322-4774 info@cedengineering.com CHAPTER 2

WIRING TECHNIQUES
LEARNING OBJECTIVES
Upon completing this chapter, you should be able to:
1. State the basic requirements for any splice and terminal connection, including the preferred wirestripping method.
2. State the reason the ends of the wire are clamped down after a Western Union splice has been made. 3. Explain the major advantage of the crimped terminal over the soldered terminal.
4. Name the two types of insulation commonly used for noninsulated splices and terminal lugs.
5. State an advantage of using …show more content…

Continue to release pressure until the gripper jaws release the stripped wire, then remove.
Knife Stripping
A sharp knife may be used to strip the insulation from a conductor. The procedure is much the same as for sharpening a pencil. The knife should be held at approximately a 60º angle to the conductor. Use extreme care when cutting through the insulation to avoid nicking or cutting the conductor. This procedure produces a taper on the cut insulation as shown in figure 2-3.

2-3

Figure 2-3.—Knife stripping.

Locally Made Hot-Blade Wire Stripper
If you are required to strip a large number of wires, you can use a locally made hot-blade stripper
(figure 2-4) as follows:

Figure 2-4.—Locally made hot-blade stripper.

1. In the end of a piece of copper strip, cut a sharp-edged "V." At the bottom of the "V," make a wire slot of suitable diameter for the size wire to be stripped.
2. Fasten the copper strip around the heating element of an electric soldering iron as shown in figure 2-4. The iron must be rated at 100 watts or greater in order to transfer enough heat to the copper strip to melt the wire insulation.
3. Lay the wire or cable to be stripped in the "V"; a clean channel will be melted in the insulation.

2-4

4. Remove the insulation with a slight pull.
General Wire-Stripping Instructions
When stripping wire with any of the tools mentioned, observe

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