PROTECTION BOARD SYSTEMS

Base station equipment for communication systems

The basic base station equipment for digital mobile communications systems consists of amplifiers (AMP) to amplify the transmission and reception signals to desired levels, modems (MDE) to convert base band signals to high-frequency signals, speech processors (SPE) to convert voice signals to digital code strings, base station control equipment (BCE) that allocates radio channels and switches over channels with adjacent base stations, and the base station antennas (ANT). [pdf]

Small-scale solar power generation systems in Saudi Arabia

In line with the Saudi Electricity Company’s commitment to the objectives of the Kingdom’s Vision 2030 on renewable and sustainable energy, supporting the national economy, and conserving natural resources, and in response to the bylaw that governs the integration of small-scale solar power systems into the national distribution grid, as per the Saudi Electricity Regulatory Authority’s Administrative Decree No. (2/47/41) dated December 26th, 2019, the Small Scale Solar Power Systems services have now been launched. [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]

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]

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