Why do power distribution cabinets and weak electrical machine rooms need digital lightning protection?

Abstract: Power supply, communication, control, security and monitoring equipment are centrally deployed in power distribution cabinets and weak current rooms. They have many interfaces, many cables, and high equipment sensitivity. Digital lightning protection can manage lightning surges, lightning protection status, grounding status and equipment abnormalities in the same data link.

In power distribution cabinets and weak motor rooms, SPD is often installed in a corner of the cabinet. Usually no one pays attention to it, and it will only be re-checked when there is an equipment abnormality, communication interruption or inspection.

But this kind of scenario requires digital lightning protection even more. Because the equipment here is dense, the interfaces are complex, and the cables are intertwined, any surge entering may affect multiple systems.

1. Risk characteristics of power distribution cabinets and computer rooms

There are power lines, signal lines, communication lines, control lines and grounding lines in the power distribution cabinet and weak motor room. Surges can come in from the power side, or they can have an impact through signal links or grounding systems.

Computer room equipment is usually sensitive, and power modules, switches, controllers, and monitoring equipment may be affected by transient overvoltage. Simply looking at whether there is an SPD in the cabinet does not mean that the entire protection link is reliable.

2. Traditional inspections tend to miss transient processes

Manual inspection can see the appearance and partial status, but it is difficult to capture instantaneous surge events. After many surges occur, the equipment may not be damaged immediately, but the SPD life has been consumed.

If there is no event record, when subsequent equipment anomalies occur, it will be difficult to determine whether it is caused by lightning surges, power quality, grounding changes, or equipment aging.

3. What data should we pay attention to when designing computer room lightning protection?

Digital lightning protection in the computer room should at least pay attention to lightning surge events, SPD status, grounding status, cabinet temperature and humidity, and equipment alarms. Only when these data exist at the same time can we judge whether the lightning protection chain is complete.

For example, SPD anomalies superimposed on ground fluctuations and equipment communication alarms are more worthy of priority than a single SPD trip.

4. How to integrate digital lightning protection into computer room operation and maintenance

The lightning protection data of the computer room should enter the unified operation and maintenance system and be related to the power supply and distribution, dynamic environment, security and fire protection data. Lightning protection alarms should not just stay on the local indicator light, but should enter the remote alarm, work order and review process.

In this way, the lightning protection system is no longer an independent device, but a part of the reliability management of the computer room.

5. How does micro-IoT understand digital lightning protection in computer rooms?

Micro-IoT believes that the lightning protection management of power distribution cabinets and weak current rooms should move from "device exists" to "protection links are known". FEXLINK digital lightning protection system emphasizes the linkage of cabinet status, lightning protection status, grounding status and equipment abnormalities.

For computer rooms, digital lightning protection is not about adding a display screen, but integrating lightning protection into the infrastructure operation view.

Conclusion: Lightning protection in the computer room should be visible from the installation to the status.

The risks in power distribution cabinets and weak power rooms come from the complex coupling of multiple lines, multiple devices, and multiple interfaces. Only by allowing lightning strikes, SPD, grounding and equipment abnormalities to form a data link can computer room lightning protection truly serve reliability management.

FEXLINK technology will continue to share content related to intelligent lightning protection, early warning of electrical safety, digital power distribution, energy supervision and industrial Internet of Things.

FEXLINK/FEXLINK uses data to reconstruct energy efficiency and electrical safety.

Where there is electricity, there is FEXLINK.