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A distribution board (also known as panelboard, circuit breaker panel, breaker panel, electric panel, fuse box or DB box) is a component of an electricity supply system that divides an electrical power feed into subsidiary circuits while providing a protective fuse or circuit breaker for each circuit in a common enclosure.
Track gauges are ordered by actual track gauge, ... Pages in category "Broad-gauge railways by size" The following 3 pages are in this category, out of 3 total.
Also, the size of the aluminum wire needs to be larger compared to copper wire used for the same circuit due to the increased resistance of the aluminum alloys. For example, a 15 A branch circuit supplying standard lighting fixtures can be installed with either #14 AWG copper building wire or #12 AWG aluminum building wire according to the NEC ...
The big advantage of this scheme is the ability to remove or add a branch circuit without removing voltage from the whole duct. Busbars for distributing protective earth (ground) Bus ducts may have all phase conductors in the same enclosure (non-isolated bus), or may have each conductor separated by a grounded barrier from the adjacent phases ...
AWG is colloquially referred to as gauge and the zeros in thick wire sizes are referred to as aught / ˈ ɔː t /. Wire sized 1 AWG is referred to as "one gauge" or "No. 1" wire; similarly, thinner sizes are pronounced "x gauge" or "No. x" wire, where x is the positive-integer AWG number. Consecutive AWG wire sizes thicker than No. 1 wire are ...
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See also , a chart comparing all known wire gauges to each other. Pages in category "Wire gauges" The following 11 pages are in this category, out of 11 total.
Model railway gauges are covered in rail transport modelling scales. Train with model Southern Railway Schools class Triple-gauge pointwork (3 + 1 ⁄ 2 in, 5 in, and 7 + 1 ⁄ 4 in) on the Orchid Line. The upper right branch does not include the 3 + 1 ⁄ 2 in gauge.