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Simpson Manufacturing Company is an engineering firm and building materials producer in the United States that produces structural connectors, anchors, and products for new construction and retrofitting. The company was founded by Barclay Simpson in Oakland in 1956, as a successor to his father's window screen company. [1]
Twist-on wire connectors are not generally recommended for use with aluminum wire in the United States. [1] The U.S. Consumer Product Safety Commission disapproves wire nuts for aluminum wire; instead, special crimp connectors are called for, and as of 2011 the CPSC asserted qualified, second-preference approval of a certain kind of screw ...
A wire or cable has a voltage (to neutral) rating and a maximum conductor surface temperature rating. The amount of current a cable or wire can safely carry depends on the installation conditions. The international standard wire sizes are given in the IEC 60228 standard of the International Electrotechnical Commission.
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For example, pushing a screwdriver down the middle of the block is a bad practice as it forces the two blades of the terminal post apart, leading to bad contacts. It is also possible to punch down multiple wires on top of each other in a single post of a punch-down block, but this practice is discouraged because of reliability concerns.
Barbed wire picket. Screw pickets (used as supports for barbed wire defences) were introduced c. 1915 as a replacement for timber posts. Crown Iron Works Co. (Minneapolis, MN) made over 10 million of these screw post pickets for WW1, WW2 and the Cuban Missile Crisis. The French name for this type of "steel stake" was "queue de cochon" or pigtail.
Category 5 cable is nearly always terminated with 8P8C modular connectors (often referred to incorrectly as RJ45 connectors [14] [15] [16]). The cable is terminated in either the T568A scheme or the T568B scheme. The two schemes work equally well and may be mixed in an installation so long as the same scheme is used on both ends of each cable.
During the late 1940s, General Radio created a new binding post that had a jack in a cap. [1] [2] [3] Today it is commonly known as a "five-way" or "universal" binding post, which allows many types of connection methods: Banana plugs, inserted into the top open end of the binding post. Bare wire inserted through the same hole and clamped.
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related to: simpson post cap eccq44sds2.5 5x5 wire set installation