NASA tests on 22 and 16 AWG wire showed that the Western Union Splice is very strong and, if done properly, is stronger than the wire alone. The longer version may aid in solder flow. "Short tie" and "long tie" variations exist, mainly for purposes of coating the connection with solder. If you are looking for answers of questions: How to make western union splice, then you are in the place which is best. Splicing Electrical Wire : Western Union Splice (Linemans Splice). The cut off ends are pushed close to the center wire. How to make a Western Union Short Tie Splice. Then, using needle-nose pliers, the ends are twisted at least five more turns, tightly. The Western Union Splice is made by twisting two ends of a wire together counterclockwise 3/4 of a turn each, finger tight. This method can be used where the cable may be subject to loading stress. This type of splice is more suited to solid, rather than stranded conductors, and is fairly difficult to complete. The Western Union splice or Lineman splice is a method of joining electrical cable, developed in the nineteenth century during the introduction of the telegraph and named for the Western Union telegraph company. The wrapping pattern is designed to cause the termination to tighten as the conductors pull against each other. Western Union/Lineman SpliceThe Western Union or Lineman splice was developed during the introduction of the telegraph to mechanically terminate aerial conductors that were subject to loading stress. Solid core wires can benefit from the use of this method, but stranded wires can also be utilized. There’s no comparison between the Splice and Lineman. Alternatively, using a Western Union splice (a) may be able to get your wires together. The splice wire ends are then trimmed as needed, and the splice may then be soldered, and/or covered (e.g., with a heat-shrunk tube of insulation).The Western Union or Lineman splice was developed during the introduction of the telegraph to mechanically and electrically connect wires that were subject to loading stress. A twist and turn of an helix from a different direction is referred to as an inverted helix. The wires are then held with pliers to the left of their crossing point while the right splice is formed by continuing to wind the wire tip away from the worker, creating 5-6 twists snug against the core wire and against each preceding twist, that is, "tight, with no gaps between adjacent turns." The wires are then again held with pliers, but on the first-made twist, to the right of the crossing point, and then the left splice is formed by winding the remaining wire tip toward the worker for a comparable 5-6 snug twists. However, when examined in tensile strength ("pull") tests by NASA on 16 and 22 AW gauge wire, even the short tie variation of the Western Union splice performed well after soldering: when spliced and soldered carefully to standard instructions, the test splices never failed at the splice (instead breaking outside of the splice area), leaving NASA to conclude that "the solder connection at the splice was as strong or stronger than the un-spliced wires." Ī 1915 textbook description of the short tie Western Union splice has it being formed after stripping the insulation from a pair of wires for 3 inches, each, crossing the wires left over right as shown in figure part A then, a hooked cross (figure part B) is formed holding the crossing point of the two wires, and pulling the right wire tip toward and pushing the left wire tip away from the worker, leaving the tips oriented vertically as shown. The Western Union splice is described as having two variations, the "short tie" (figure part D) and "long tie" (figure parts E or F), with the latter examples having a "twist between wrappings allows a better chance for solder to pass in between the wires" (as stated in a 1915 practical textbook), and so the long tie variant was seen as more suited to splices where soldering was intended. In 1915, it was described as being, "by far the most widely used splice" in practical electrical wiring work. This type of splice is more suited to solid, rather than stranded conductors. The wrapping pattern is designed to cause the termination to tighten as the conductors pull against each other. The Western Union splice or Lineman splice was developed during the introduction of the telegraph to mechanically and electrically connect wires that were subject to loading stress.
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