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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.
Screwfix Direct Limited, trading as Screwfix, is a retailer of trade tools, accessories and hardware products based in the United Kingdom. [6] Founded in 1979 as the Woodscrew Supply Company, the company was acquired in July 1999 by Kingfisher plc , which also owns B&Q , and is listed on the London Stock Exchange .
Fuse box, or distribution board, in electric wiring; FuseBox, a brand of distribution boards and related products; Fuse box housing automotive fuses; Fusebox (band), an American band; Fuse Box, by AC/DC, 1995
In electrical distribution, a fuse cutout or cut-out fuse (often referred to as a cutout) is a combination of a fuse and a switch, used in primary overhead feeder lines and taps to protect distribution transformers from current surges and overloads. An overcurrent caused by a fault in the transformer or customer circuit will cause the fuse to ...
The Lucas 1/4" diameter glass tube fuse have a different length as compared to the standard US item. The Lucas 1/4" diameter glass tube fuse is 1 + 5 ⁄ 32 in (29 mm) long, while the US standard 1/4" glass tube fuse is 1 + 1 ⁄ 4 in (32 mm)] long. However, many Lucas fuse holders permit the longer US version to be installed easily.
Typical domestic panel circuit breakers are rated to interrupt 6 kA (6000 A) short-circuit current. Miniature circuit breakers used to protect control circuits or small appliances may not have sufficient interrupting capacity to use at a panel board; these circuit breakers are called "supplemental circuit protectors" to distinguish them from ...
A fusible plug operates as a safety valve when dangerous temperatures, rather than dangerous pressures, are reached in a closed vessel. In steam boilers the fusible plug is screwed into the crown sheet (the top plate) of the firebox, typically extending about 1 in (25 mm) into the water space above it. Its purpose is to act as a last-resort ...
Its closest cousin among common, modern tools, is the combination square, which shares with the Odd Job the functions of scribing, squaring, level/plumb, and the sliding and locking ruler [2] (originally a 12 inch wooden ruler with a built-in trammel point was included with units bundled with a ruler, [3] but this was often changed and many are ...