Standard value of protection voltage for communication base stations
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Lightning protection specifications for communication base stations
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Standard value of protection voltage for communication base stations
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5 FAQs about Solar Standard value of protection voltage for communication base stations
Where should surge protective devices be installed in a power meter station?
Surge protective devices (SPDs) shall be installed at the RBS side of the power meter station (i.e., downstream of the circuit breakers). These SPDs shall comply with [IEC 61643-11] and withstand the current: is the number of metallic services entering the RBS m is the number of conductors of the power line.
How to limit overvoltages and overcurrents in the equipment room?
In order to limit the overvoltages and the overcurrents in the equipment room, all conductors, frameworks and metallic parts in the equipment room must be bonded to the earthing network, directly or by means of SPDs. The bonding configuration A in the equipment room is illustrated in Figure 9.
What is the bonding configuration B in the equipment room?
The bonding configuration B in the equipment room is illustrated in Figures 10 and 11. The bonding configuration B uses a bonding ring instead of an indoor earthing bar. All equipment are connected to the bonding ring by using bonding conductors. Most of the equipment are installed below the indoor cable tray.
What if a power meter station is not equipped with SPD?
NOTE – Annex A of [ITU-T K.66] gives information on SPD installation for different power systems. If the installation does not have a power meter station equipped with SPDs as required in clause 7.4, then the SPD of the electric board shall comply with the requirements of clause 7.4.
What is the distance DEP between voltage electrode and earthing network?
In general, the distance dEP between the voltage electrode (P) and the earthing network (E) shall be about 50% to 60% of the distance dEC between the current electrode (C) and the earthing network (E).
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