What is a fuse link?
The fuse link is a "sacrificial" thermal overload, electrical exceeding or protection against short circuit. The device depends on the melting of the metal strip or wire to break the electrical circuit or to activate the safety mechanism. Links or wires used in fuses are produced to melt at predetermined temperatures or current values, which makes the level of protection to predict. The fuse -joint equipment falls into two basic categories: mechanical and electrical. The mechanical fuse connection activates the safety mechanism, such as the sprinkler with fire and electric fuses, disturbance of the circuit in the event of an electrical failure. These connectors are then inserted into the fuse holder into the electrical circuit or are used as a trigger for suitable safety devices. In the case of a mechanical fuse, if the ambient temperature was formed above the set point, the melted alloy of theeldes will melt to trigger the safety mechanism. Electric fuse pThe current through the fuse connection until this current reaches the predetermined level, at this point the joint would melt and effectively disconnect the circuit.
Mechanical fuses are used in applications such as fire sprinkler systems and fire insulating doors and are generally only one part of a more complex mechanism. In these applications, the fuse -connection assembly is exposed in the open air in the protected area. If the fire were to break free, the increase in the air temperature would eventually reach the preset level and melt the fuse connection. This allows the rest of the fuse circuits or mechanism to open the water supply to the spraying system or close the fire insulating door. Link Thermal Fuse is also used in the locking mechanisms of high safety safes as protection from the intrusion using cutting torches.
Links to electric fuses are a critical part of anyEven the electrical circuit and protect the circuit or equipment, its users and the environment that is placed against damage, shock and fire. Electric fuses designed for boards or equipment usually consist of a fuse connection closed in a glass or ceramic tube with terminals at each end. These fuses are designed to safely transfer their rated current flow, but melt to reduce the power when the short circuit is exposed. A short period of time also carries any overloaded current before it melts to protect the circuit from damage. The type of glass tube offers a visible allusion when the link burned; The ceramic type must be checked using the continuity tester to see if it has fired or not.
In general, fuse links are known as sacrificial protective devices because they are usually discarded when they are blown. In the case of many older household appliances and distribution boards, Fuodkazes are often replaceable. In these cases they are to the displayOcho role of fuse wire with specific current evaluation, from which replacement links can be cut off to replace blown fuses. However, this type of fuse is no longer common and is replaced by popping up and switches of trips.