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COMMON WIRE SPLICES
AND JOINTS
The following are
the Common
Electrical Wire
Splices and Joints.
Rat Tail or Pig Tail. This kind of joint is commonly used
to join two or more conductors inside the junction box.
It is suitable for service where there is no mechanical
stress when wires are to be connected in an outlet box,
switch, or conduit fitting
Knotted tap. This is used where the tap wire is under
heavy tensile stress.
Plain tap joint. This is used where the tap wire is under
considerable tensile stress circuit.
Aerial tap. This is used as a temporary tap usually done
in constructions sites. The easy twist will facilitate tap
wire movement
Duplex cross joint. This is a two-tap wire turned
simultaneously and is used where the two tap wire is
under heavy tensile stress.
Western Union Short-tie Splice. This is the most widely
used splice or joint in interior wiring installation to
extend the length of wire from one point to another.
Western Union Long Tie. This is used extensively for
outside wiring to extend the length of wire from one
end to another.
Cross joint. The same application is done as in plain
tap and the only difference is that this tap is a
combination of two plain taps place side by side with
each other.
Y-splice. This method of wrapping is generally used on
small cables because the strands are flexible and all
can be wrapped in one operation.
Wrapped Tap or Tee Joint. This is used on large solid
conductors where it is difficult to wrap the heavy tap
wire around the main wire.

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SPLICES AND WIRES AND EVERYTHING NICE.pptx

  • 2. The following are the Common Electrical Wire Splices and Joints.
  • 3. Rat Tail or Pig Tail. This kind of joint is commonly used to join two or more conductors inside the junction box. It is suitable for service where there is no mechanical stress when wires are to be connected in an outlet box, switch, or conduit fitting
  • 4. Knotted tap. This is used where the tap wire is under heavy tensile stress.
  • 5. Plain tap joint. This is used where the tap wire is under considerable tensile stress circuit.
  • 6. Aerial tap. This is used as a temporary tap usually done in constructions sites. The easy twist will facilitate tap wire movement
  • 7. Duplex cross joint. This is a two-tap wire turned simultaneously and is used where the two tap wire is under heavy tensile stress.
  • 8. Western Union Short-tie Splice. This is the most widely used splice or joint in interior wiring installation to extend the length of wire from one point to another.
  • 9. Western Union Long Tie. This is used extensively for outside wiring to extend the length of wire from one end to another.
  • 10. Cross joint. The same application is done as in plain tap and the only difference is that this tap is a combination of two plain taps place side by side with each other.
  • 11. Y-splice. This method of wrapping is generally used on small cables because the strands are flexible and all can be wrapped in one operation.
  • 12. Wrapped Tap or Tee Joint. This is used on large solid conductors where it is difficult to wrap the heavy tap wire around the main wire.