
Protection of PLCs Against Overvoltage
7 May 2016External Lightning Protection Infographic
14 May 2016With Industry 4.0, the importance of Ethernet technology is increasing every day. It is estimated that 26 billion devices will be connected to the internet in 2020. This trend is also reflected in factories. Thanks to its flexible structure and compatibility, Ethernet has spread rapidly since its inception in 1970. Starting at speeds of 3 Mbps, it now continues at gigabit speeds. The transition to gigabit Ethernet has given rise to LAN technologies and numerous communication lines. Today, Ethernet uses many types of media, from coaxial cables to twisted pair cables and fiber optics. A typical Ethernet can provide speeds ranging from 100 Mbit/s to 1000 Mbit/s. But how are Ethernet lines protected from lightning and overvoltage?
You may also be interested in: Protecting PLCs from Overvoltage
Why Do Ethernet Lines Get Damaged?
- Sudden overvoltage or lightning strike on power, data, or telecom lines
- Electromagnetic field caused by lightning strike
- Potential differences causing surges from lightning strikes
Protecting Ethernet Lines with Surge Protectors
Protecting Ethernet lines requires sensitive D-class protection devices. The correct product must be selected according to the type of Ethernet line. As we always emphasize, layered protection is crucial for Ethernet line protection. In the following image, you can see a real network center consisting of Ethernet, modem, ADSL, and computers being protected with surge protectors.
1- Main Panel Protection B+C class
2- 10-line Krone protection
3- Equipotential bar
4- Type 2 C class surge protector (3-phase)
5- Single-phase Type 2 surge protector Up<1500 V
6- Type 3 POE Protection Surge Protector
7- RJ11 Protection Up<250 V
8- Socket Protection Type 3
9- Data Line Protection Type 3 Up<40 V
10- Type 3 Monitoring Device Protection connected directly to socket
11- Type 2 ADSL, Modem, Twisted Pair surge protector
12- Socket protection directly protects the computer Up<100 V
Ethernet lines host many complex devices. Therefore, each device must be considered individually for protection. Since the Up protection level varies for each device, a special product must be chosen. For product selection, detailed implementation, and technical support, you can always contact Yılkomer engineers.







