arresters的意思|示意

Arresters are an important safety device that can be used as a protective measure against electrical surges, excessive voltage, lightning strikes, and other types of electrical overloads. They are commonly used in homes, offices, and commercial and industrial buildings.

Arresters are designed to protect electrical devices or systems from the instability caused by electrical surges and lightning strikes. When an overvoltage enters the system, arrester will absorb the energy and divert it away from the protected equipment, thus preventing overvoltage and regulating the voltage.

Arresters are generally divided into two categories — spark gap arresters and voltage limiters. Spark gap arresters contain a type of conducting material that will arc or spark when the electrical surge exceeds a certain level. This spark gap will safely channel the current from the overvoltage and discharge it safely to the ground. Voltage limiters, on the other hand, are shorted parallel to the protected equipment when a high voltage is detected. This prevents the voltage from rising to a dangerous level by limiting the flow of current.

Arresters are commonly used in telecommunications systems, electrical power systems, and in other locations where electrical surges can occur. Spark gap arresters can be used in buildings to protect electrical systems from lightning strikes, while voltage limiters are used to prevent overvoltage.

In order to ensure the safety of electrical systems, it is important to have proper arrester installation. This may include the use of surge protection devices, the proper grounding of arrester systems, and the installation of surge protection systems in the buildings. It is also important to have regular maintenance on the arrester systems and to replace any damaged or malfunctioning components when necessary.