Soldering is the recommended way to splice, tap, or join wires to make a rigid, permanent connection that is weather-resistant. The process of soldering can be time consuming, awkward, restrictive, and expensive.
In many applications, soldering has been replaced by special connecting devices that simplify wire joining procedures. Solderless connectors are used on both wire and cable connections. Types of solderless connectors include:
The most common solderless connection has the looped end of a wire (Figure 8) held in place by a set-screw at an electrical terminal (Figure 9). Note that the direction of the loop is the same as the direction the screw is turned when it is tightened (clockwise). The screw and washer should be made of corrosion-resistant materials such as copper or brass.
- Good loop (also known as a hook)
- Proper installation under terminal screw
- Completed connection
- Winged connector
- Twist-on connectors end view showing metal inserts
- Set-screw connector
- Two-part crimp-on connector
- One-part crimp-on connectors
Now complete the Learning Task Self-Test.