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In electrical engineering, IEC 60269 is a set of technical standards for low-voltage power fuses. [1] The standard is in four volumes, which describe general requirements, fuses for industrial and commercial applications, fuses for residential applications, and fuses to protect semiconductor devices.
A time-delay fuse (also known as an anti-surge or slow-blow fuse) is designed to allow a current which is above the rated value of the fuse to flow for a short period of time without the fuse blowing. These types of fuse are used on equipment such as motors, which can draw larger than normal currents for up to several seconds while coming up to ...
[53] The original BS 1363:1947 specified fuse ratings of 3 A, 7 A and 13 A. [54] The current version of the fuse standard, BS 1362:1973, allows any fuse rating up to 13 A, with 3 A (coloured red) and 13 A (coloured brown) as the preferred (but not mandated) values when used in a plug. All other ratings are to be coloured black.
BS 1361 for cartridge fuses for a.c. circuits in domestic and similar premises; BS 1362 for cartridge fuses for BS 1363 power plugs; BS 1363 for mains power plugs and sockets; BS 1377 Methods of test for soils for civil engineering. BS 1380 Speed and Exposure Index of Photographic Negative Materials. BS 1572 Colours for Flat Finishes for Wall ...
A reference designator unambiguously identifies the location of a component within an electrical schematic or on a printed circuit board.The reference designator usually consists of one or two letters followed by a number, e.g. C3, D1, R4, U15.
The fuses used in fuseboxes were either of the cartridge type, similar to those found in UK plugs, or replaceable fuse-wire held within two-prong enclosures. Other standard use of fuses include those within appliance plugs, and the main fuse located on the end of the service (supply) cable (at the service head). Breaker (circuit breaker, CB)
Common circuit diagram symbols (US ANSI symbols) An electronic symbol is a pictogram used to represent various electrical and electronic devices or functions, such as wires, batteries, resistors, and transistors, in a schematic diagram of an electrical or electronic circuit. These symbols are largely standardized internationally today, but may ...
BS 1361 for cartridge fuses for a.c. circuits in domestic and similar premises; BS 1362 for cartridge fuses for BS 1363 power plugs; BS 1363 for mains power plugs and sockets; BS 1377 Methods of test for soils for civil engineering. BS 1380 Speed and Exposure Index of Photographic Negative Materials. BS 1572 Colours for Flat Finishes for Wall ...