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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.
Most modern interfacings have heat-activated adhesive on one or both sides. They are affixed to a garment piece using heat and moderate pressure, from a hand iron for example. This type of interfacing is known as "fusible" interfacing. [2] Non-fusible interfacings do not have adhesive and must be sewn by hand or machine.
Limiter fuses or fusible links consist of a metal strip for currents over 10 amperes. Also referred to as Current Limiting Fuses, they feature an internal fuse element that melts when current passing through the fuse element is within the specified current limiting range of the fuse.
An electrical fusible link is a type of electrical fuse that is constructed simply with a short piece of wire typically four American wire gauge (AWG) sizes smaller than the wire that is being protected. For example, an AWG 16 fusible link might be used to protect AWG 12 wiring.
A thermal fuse is a cutoff which uses a one-time fusible link. Unlike a thermal switch which may automatically reset itself when the temperature drops, the thermal fuse is more like an electrical fuse : a single-use device that cannot be reset and must be replaced when it fails or is triggered.
Resettable fuses - PolySwitch devices. A resettable fuse or polymeric positive temperature coefficient device (PPTC) is a passive electronic component used to protect against overcurrent faults in electronic circuits.