What Are The Requirements For Installing A Surge Protector?

Surge protector (SPD), generally known as surge protection device. Its main function is to be installed in parallel at the front end of the terminal electrical equipment to protect the terminal electrical equipment from damage caused by line lightning overvoltage and operation overvoltage. surge protective device are designed in multiple levels according to the voltage level of the actual equipment, the structural form of the system power supply line, and the location of the equipment and building. According to the purpose, they are divided into discharge type and voltage limiting type. The discharge type is mainly used to protect the equipment installed in lightning protection zone 0 to zone 1. Its function is to discharge the lightning current energy to the ground when the equipment is invaded by direct lightning. The voltage limiting type is mainly installed in lightning protection zone 1 and later, and is used for induced lightning protection. Its function is to discharge the lightning current to the ground and limit the line voltage to a lower level when induced lightning occurs, thereby protecting the safe and stable operation of the equipment.

Surge protector is mainly used to protect electronic equipment and electronic instruments. It is a device similar to a safety valve. Basically, when installing lightning protection components in high-rise buildings, surge protection devices are indispensable. During the entire installation process, the installation location of the surge protector is very important. The following three points are the configuration principles and related details of the surge protector.

1. Configuration principles

At the two intersections of the lightning protection area, the first thing to consider is whether the line is too long. If the line is too long, you need to consider adding another level. Under normal circumstances, this low-voltage side surge can be used as a first-level surge protector, but the low-voltage side surge also needs to be installed in a graded configuration.

2. Different levels of protection

If installed as a low-voltage side surge protector, there are generally first-level protection, second-level protection, third-level protection and fourth-level protection. Under normal circumstances, the first-level protection needs to be considered to be installed in front of the distribution box of the power supply line. For the second-level protection, it is necessary to consider that its function is to limit the voltage amplitude of the induced overvoltage. The third level is generally used as a second-level protection device, and the fourth level is generally used in important equipment.

3. In fact, it is easy to determine the installation location of the surge protector, as long as you first understand what the surge protector does. In fact, the purpose of the surge protector is to protect the safety of electronic equipment. It is a protective device. The installation location also depends on the needs of important components.