IDC (Internet Data Center) is a fast-growing industry along with the development of internet, it is not only a data storage center, but also a data exchange center, a key carrier of mass data, a core place of informatization. It is always a critical place with complexities, particularities and heavy investments, as well as fragility. There are many types of accidents in the IDC, fire/equip damage/communication-interruption, caused by direct lightning strikes/ induced surge/ overvoltage, might lead to the irreparable huge losses. In view of its characteristics, PTG provides a tailored lightning and surge protection solution.

According to the IDC protection requirement of IEC 62305, in order to determine the categories of LPZ (lightning protection zone) and SPD selection/installation, the below items must be taken into consideration:

1. Lightning protection zone (LPZ 0…3);

2. Relative SPD test waveshapes (8/20 μs or 10/350 μs);

3. Voltage protection level

4. Voltage and standard of power supply (230/400 V; 400/690 V; TT/TN system);

5. Harmonic wave interference.

In accordance to:

1. IEC 62305: Protection against Lightning

2. IEC 61312: Protection against Lightning Electromagnetic Impulse

3. IEC 61643-11: Low-voltage Surge Protective Devices

4. IEC 61643-21: Surge protective devices connected to telecommunications and signaling networks - Performance requirements and testing methods