To use electrical appliances in your home safely and effectively, it is required the coordination of an entire electrical network. In particular, the role of protective devices is extremely important.
Automatic circuit breaker (CB) and fuse are common and basic devices in the home network protection system. In this article, we will find out about the structure and use of these two devices.
1. Fuse
Fuse is an electrical device used to protect the safety of electrical appliances and circuits when a short-circuit or overload occurs. Fuses come in many different types such as box fuses, tube fuses, button fuses, etc.
Fuses also come in different types
The structure of a fuse usually includes 3 parts: the cover, poles to hold the open-link fuse and electric wire. The fuse cover is usually made of porcelain or glass which records the voltage and the rated current. The poles and wires are made of copper, the open-link fuses are usually made of lead.
In the fuse, the most important part is the open-link fuse, which is connected in series with the circuit to be protected. When a short-circuit or overload occurs, the voltage is increased beyond the rated value causing the fuse to explode which makes the circuit disconnected. As a result, electrical circuits, electrical appliances and electrical equipment are protected.
People choose open-link fuses according to the value of rated current, the value of the open-link fuse.
2. Automatic circuit breaker (CB)
Automatic circuit breaker (CB) is also known as an automatic breaker because it is the device that automatically cuts the circuit when it is shorted or overloaded. The automatic CB combines both functions of a circuit breaker and fuse.
Automatic CB acts as a fuse when the circuit is shorted or overloaded. When the current in the circuit increases beyond the norm, the CB automatically cuts the circuit to protect the circuit, equipment and electrical appliances from being broken.
Automatic circuit breaker is also known as automatic breaker
After determining the cause of the problem of the circuit and repairing, we can turn on the switch of the automatic CB to close the circuit, there will be electricity in the circuit again. At this point, the device acts as a circuit breaker.
In addition to the use of fuses and automatic circuit breaker, households can also apply many other methods to protect the electricity network as well as fire and explosion prevention. Reader can have more references through the article Summary of preventive measures easiest to set out. Let's ensure safety for ourselves, our family and the whole community.
CONTACT INFORMATION:
Tran Phu Electric Mechanical Joint Stock Company
Address: No. 41, Phuong Liet Str., Phuong Liet Ward, Thanh Xuan Dist., Hanoi.
Hotline: 0898.41.41.41
Email: contact@tranphu.vn
Website: www.tranphu.com.vn