MIDTERM QUIZ #1

___________2. It works best to splice together small, solid conductors. It is the most common type of wire splice. To make the Western Union splice, first, remove about five inches of insulation from both wires and cross the exposed wires. Wrap one wire around the other five or six times, and then do the same with the other. Cut the excess wires off and pinch the ends down with pliers. Solder the joint together and wrap the tape around it.

___________3. The branch wire is laid behind the primary wire. About three-fourths of the bare portion of the branch wire extends above the primary wire. The branch wire is brought under the main wire, around itself, and then over the primary wire to form a knot. The branch wire is then wrapped around the main conductor; in short, tight turns, and the end is trimmed off. The knotted tap is used where the splice is subject to strain or slippage. When there is no strain, the knot may be eliminated.

also known as a twist splice or a pig-tail splice, is a very basic electrical splice that can be done with both solid and stranded wire.

It is used where the tap wire is under considerable tensile stress circuit

• Plain Tap

• Aerial Tap

What types of splices and joints is this?

• Rattail Joint

• Western Union Tie Splice

• Knotted or Loop

What types of splices and joints is this?

• Tap Tee Joints

• Western Union Tie Splice

• Knotted or Loop

• Western Union Short-Tie Splice

• Britannia Splice

• Western Union Long-Tie Splice

It is the most common type of wire splice.

• A. Rat-Tail Splice,

• B. Britannia Splice

• C. Pretzel Knot

• D. Western Union splice

This joint is used where the tapped wire is under heavy tensile stress.

• Knotted Tap

• Plain Tap

This splice is applied on both inside and outside of the building to big solid wire where twisting is difficult but there is an equipment to lessen the difficulty on doing this kind of splice.

• Britannia Splice

• Y splice