GSM communication towers, radio, TV transmitters, forest observation towers, meteorological stations and radars geographic location as of generally lightning compared to other facilities; because they are at the highest point and exposure to excessive voltage pulse risks. Therefore, in such structures EN 62305 (Lightning Protection Standard Structures) should be full and complete.
![GSM and communication tower frequently is striked by lightning](https://lightningprotectioncenter.com/wp-content/uploads/2015/09/gsm-tower-grounding-300x225.jpg)
GSM and communication tower frequently is striked by lightning
- Protection against Lightning: IEC 62305 series
- General principles – IEC 62305-1
- Risk management – IEC 62305-2
- Physical damages to structures and life hazards – IEC 62305-3
- Electrical and electronic systems within structures – IEC 62305-4
- SPD for AC network : Tests IEC 61643-11
- SPD for communication lines : Tests IEC 61643-21
![Gsm tower should be protected by lightning strike](https://lightningprotectioncenter.com/wp-content/uploads/2015/09/gsm-tower-surge-arrester.jpg)
Gsm tower should be protected by lightning strike
Target
- Protect internal equipment against failures due to surge voltages
- Improve life duration
- Limit distrubances of operation
Action
- Install SPDs on all external lines
- AC power line
- DC power lines
- Telecom lines
- Coaxial lines
- Select SPD following standards
![Surge arrester system is very important to protect radio communication](https://lightningprotectioncenter.com/wp-content/uploads/2015/09/surge-arrester-gsm-tower.png)
Surge arrester system is very important to protect radio communication
Surge Arrester Type for Communications Tower
Type 1
- SDP intended to be install in a installation equipped with a Lightning Protection System, where a part of the current of the direct lightning strike could flow through the device.
- Tested in 10/350µs surge current
Type 2
- For a SDP intended to be install at the electrical entrance or inside a classical installation.
- Tested in 8/20µs surge current
Type 3
- A different way to test a SPD : more adapted to « low power » SDP.
- Tested in 1.2/50µs-8/20µs combination waveform