Joints and Splices Flashcards
used principally in solid conductors
western union long-tie joint
same as the western union long-tie joint but often used in indoor wiring
western union short-tie joint
used generally in place of the western union when conductors are joined together in a junction box or when fixture leads are connected through conductors
rattail joint
used to a great extent for joining a tap or other conductor to a through conductor
plain top or t-joint
a very substantial joint and will not untwist even if strain is place upon it
knotted joint
it is used where two tap conductors are to extend away from the branch conductors in opposite directions
ordinary cross joint
used for the same reason as the ordinary cross joint, but it has the advantage of being stronger
double wrap cross joint
used on large solid conductors where it is difficult to wrap the heavy wire around the main wire
wrap tap or t joint
used in a system which uses two wires such as non-metallic sheathed cable, cord, and other electrical wires
duplex joint
used on overhead lines where considerable tensile strength or solid wire number 6 or bigger is required
britannia joint
it is connecting two wires that must be drawn tightly
back turn joint
it is used when connecting a solid wire and a fixture wire
terminating fixture joint
it is used mostly on outside work or in locations where wires are subjected to considerable movement
small aerial tap joint
sed for splicing telephone and telegraph line wires
McIntire sleeve
used only on large solid wires where there is an objection to the bulkiness of a large western union or britannia joint
scarfed joint
