OPEN-CONSTRUCTION PLUG
Description: The shape of this plug varies, usually round or flat. Colors are normally black, white, or brown. Inside the plug there are screw terminals covered with an insulating panel that is slipped down over the prongs:
Buying information: This type of plug can be used on lamps, tools, and much more. However, the fiber panel that covers the terminal tends to come off, exposing the terminals.
How-to hints: The wires that are wrapped around the screw terminal may be solid or consist of individual strands. If strands, they can be "tinned" after being bent to the shape desired by heating solder on them. Tinning keeps the fibers together better, so there is less chance of a short circuit. In any event, the wires should be wrapped clockwise; as the screws are tightened, this tends to pull the wires tighter.
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