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A cable reel is a round, drum-shaped object such as a spool used to carry various types of electrical wires. [1] Cable reels, which can also be termed as drums, have been used for many years to transport electric cables, fiber optic cables [2] and wire products.
Vintage wooden bobbins, cylindrical, empty of wound fiber, dimensions 16 in. high by 9 in. in diameter. Vintage wooden bobbin, unflanged, wound with yarn and attached to a "shuttle" that fits it for use in a floor loom. A bobbin or spool is a spindle or cylinder, with or without flanges, on which yarn, thread, wire, tape or film is wound. [1]
A pin insulator is a device that isolates a wire from a physical support such as a pin (a wooden or metal dowel of about 3 cm diameter with screw threads) on a telegraph or utility pole. It is a formed, single layer shape that is made out of a non-conducting material, usually porcelain or glass .
The first electrical systems to make use of insulators were telegraph lines; direct attachment of wires to wooden poles was found to give very poor results, especially during damp weather. The first glass insulators used in large quantities had an unthreaded pinhole.
Corning Chairman and CEO, Wendell Weeks, and Jay Y. Lee, executive chairman of Samsung Electronics, are shown a bendable glass spool during a 2023 event in Asan, Korea, celebrating Corning’s 50 ...
A strain insulator is an electrical insulator that is designed to work in mechanical tension (strain), to withstand the pull of a suspended electrical wire or cable. They are used in overhead electrical wiring, to support radio antennas and overhead power lines. A strain insulator may be inserted between two lengths of wire to isolate them ...
Compared to modern electrical wiring standards, these are the main technical shortcomings of knob-and-tube wiring methods: never included a safety grounding conductor; did not confine switching to the hot conductor (the so-called Carter system prohibited as of 1923 places electrical loads across the common terminals of a three-way switch pair)
Spool may refer to: Bobbin , a cylinder or reel on which a quantity of thread, yarn or wire is wound for use in a particular machine or device Cable reel , used to carry various types of electrical wires