Most surge protection devices run into some common problems

surge protection device is a kind of electronic device for protecting all kinds of electronic equipments, instruments and communication lines. The surge protector can conduct and shunt in a very short time when there is a sudden surge of current or voltage in the electrical circuit or communication line due to external disturbance, thus, the damage of the current surge to other electronic devices in the circuit and the loss caused by the surge are prevented.

 

 

Common problems with surge protection devices in use:

 

 

1) the device has never encountered a lightning strike problem. is surge protection a concern?

 

 

Until then, it is important to understand that lightning is not the only factor responsible for the surge. Have you experienced any sudden and unexplained equipment failure in your daily use?

 

 

When a device renders a failure it is not necessarily due to the currently rendered disadvantage. The breakdown of electronic and electrical equipment is often due to the existence of a long time, continuous surge of power equipment, and the characteristics of this damage are often not prominent.

 

 

2) there is not much lightning strike activity in the operating environment and area. Why is there a surge problem?

 

 

It is not a nearby or local lightning strike that causes damage to the equipment. It turns out that even a lightning strike at an altitude of 1,000 meters can cause electrical equipment failures on the ground. In fact, lightning is not the only cause of surge, other factors such as electrostatic discharge, transient overvoltage/overcurrent, the presence of nearby power cables or high-power equipment will cause surge in the loop. The intensity of lightning activity can be judged from the regional distribution map of lightning activity released by the Meteorological Department.

 

 

3) if direct lightning protection methods such as lightning rods have been installed, is it necessary to consider surge protection methods?

 

 

Direct lightning protection equipment such as lightning rod can only protect buildings, but can not prevent lightning waves and other intrusion into the building’s internal electronic and electrical circuits. Only surge protection can prevent valuable equipment from going down and data from being lost.

 

 

4) how to determine the necessity of installing surge protection devices

 

 

It is important to consider the associated loss of equipment due to equipment downtime, data loss, and so on, rather than just the value of equipment repair and replacement.

 

 

5) with UPS now in place, is surge protection still a concern?

 

 

UPS is used to supply continuous and discontinuous power to critical equipment. It can only eliminate small-scale voltage fluctuation and short-term power continuity, but can not deal with sudden voltage fluctuation caused by lightning strike, in the case of a surge, even UPS itself is often damaged by the surge.

 

 

6) why bother with surge protection when all the signal loops are indoors?

 

 

Although the entire data loop is placed around the power loop, or is placed close to the reinforced structure of the building, the lightning rod. The ground potential of the AC power supply of the communication interface equipment connected by the data loop is severely unbalanced. So the data communication interface is simply corrupted.