Air switches and surge protectors are usually installed in the distribution boxes of buildings, so what is the difference between them??Follow the beam editor to take a look!
What is a surge protector?
To understand what a surge protector is, we must first know what a surge is. A surge is an instantaneous overvoltage that exceeds the normal operating voltage..The next step is the surge protector. When a spike current or overvoltage is suddenly generated in the electrical circuit or communication line due to external interference, it can be turned on and shunted in a very short period of time, thereby avoiding the impact of the surge. Damaged electronic devices of other equipment in the loop.Its working principle is: when the transient overvoltage in the line increases, it will be turned on in time, and the overvoltage on the line will be discharged into the ground..
What is an air switch?
The air switch is also called a circuit breaker. When the current in the circuit exceeds the rated current, it will automatically disconnect and protect the circuit or electrical equipment from short-circuit, overload, etc..For example, the pump room, lighting and other power sources can be controlled by air switches.Its working principle is that when the current through the switch exceeds the corresponding current, the metal sheet will be bent due to heat, the switch will trip, cut off the power supply, and protect the equipment in the circuit from damage due to excessive current.
Significant difference between the two
[ICBC has different principles]
When the transient overvoltage in the line increases, the surge protector will be cleared in time, and the overvoltage on the line will be discharged into the ground; while the air switch will automatically disconnect when the current on the line exceeds the rated current to protect the electrical equipment.
【Different protection】
Surge protector is a device to avoid surge damage in the line such as electrical equipment and communication equipment in the line, and the air switch is to protect the short circuit, overload, etc. in the line.
[Different scope of protection]
The surge protector can not only protect the power supply, but also protect the equipment of the communication line; the air switch protects the electrical equipment.
In summary, the working principle, protection function and scope of surge protectors and air switches are different. Under normal circumstances, these two types of products need to be installed at the same time to cooperate with each other to protect the safety of power lines..
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