PROTECTION RELAY COORDINATION

Environmental protection inspection exemption for communication base station energy management system

At present, the national standard for electromagnetic radiation protection, "Electromagnetic Radiation Protection Regulations" (GB8702-88), stipulates that when the equivalent radiation power of the electromagnetic radiator is less than 100W (50dBm) within the current mobile communication frequency band, an electromagnetic environment exemption can be implemented; when the equivalent radiation power of the electromagnetic radiator is greater than 100W (50dBm), an "Environmental Impact Report (Form)" should be submitted to the environmental protection department. [pdf]

Mobile base station power supply lightning protection

Mobile base stations are mostly built in high places, such as mountains, suburbs, and buildings.The base station antenna is often higher than the existing lightning protection air terminal of the building, which becomes the high incidence point of lightning strikes.Therefore, the lightning protection of mobile base stations should not only consider the protection of direct lightning strikes, but also consider the protection of lightning induction.In particular, the induction caused by the intrusion of lightning waves into the equipment through the power line. [pdf]

Wickles SolarTech