Three Key Factors To Consider When Selecting Surge Protectors

When selecting a surge protector, it is necessary to choose according to the model to suit different applications. However, how can we choose the most suitable surge protective device? This requires us to understand the factors that affect the selection of surge protectors so that we can make a better choice. Here are some factors summarized to help you make a better choice.

I. Voltage

When selecting a surge protector, the most important factor is voltage. The voltage referred to here is the voltage of the communication line when it is operating normally. Usually, when selecting a surge protector, this voltage is used as a reference to select the maximum voltage of the surge protector. 

II. Selection of Transmission Characteristics

Surge protectors are mainly used in communication lines, but different signal transmission systems have different transmission efficiencies, which affects the selection of surge protectors. When selecting a surge protector, its transmission efficiency must be greater than or equal to the signal transmission efficiency. Therefore, this determines the choice of surge protector model.

III. Grounding Status

In practical applications, many signal transmission lines are floating. For this, there are requirements; generally, the insulation resistance between the network and ground needs to be greater than 50 megohms to prevent interference with network signals. Therefore, when selecting a surge protection device, you should also pay attention to whether the network lines are grounded.

The above three situations are the important factors that affect the selection of surge protectors. When making a selection, you must consider all aspects to choose the most suitable surge protector, so that the surge protector can play its role to the maximum.