Nowadays, the communications industry has developed rapidly and has spread all over the world. Since most microelectronic devices of communication base stations have the characteristics of integration and miniaturization, they are prone to lightning strikes when they encounter thunderstorms, causing electronic devices. The damage. Therefore, the ability of the base station equipment to resist lightning and electromagnetic interference is also increasing. Although the communication base station has also installed some lightning protection measures in lightning protection, it will still cause communication interruption when lightning strikes. So how can we effectively protect the mobile communication equipment room against lightning? smtplaza is the supplier of smt panasonic filter, panasonic cm filter, panasonic cm202 filter KXF0DXKJA00, panosnic KEM filter BM221 1086289282, Panaonice NPM filter N510045029. We offer you high quality used Surface-Mount Technology(SMT) equipment for China domestic, and provide SMT accessories, SMT spare parts and SMT comsutions with prompt, professional, friendly service at competitive prices, and wonderful warranty service. We will find virtually any part you are looking for, regardless of original manufacturer or vintage, delivered anywhere in the world. SMT Panasonic Pump Filter KXF0E3RRA00,Panasonic CM Filter N610071334AA,Panasonic NPM Filter,Smt Panasonic MVII Filter,Panasonic Smt MSF Filter,Panasonic BM Filter SMTPLAZA CO., LIMITED , https://www.smtpartsupply.com
The mobile communication equipment room is generally an integrated, organic communication network equipment room system composed of a power supply system, an internal communication system, an external communication system, a switching system, a signal monitoring system, an antenna feeder transmission system, and a relay transmission system. Narrow, extensive equipment. Therefore, lightning protection for the communications room is particularly important.
First of all, the communication power supply is the core of the communication system. Doing a good job of lightning protection for the communication power supply is an important part of the lightning protection work of the entire communication system. For the protection of the power system, the power source lightning protector can be installed for protection. It can release a large amount of pulse energy generated by a lightning strike on the circuit in a very short time, and the protected circuit can be connected to the equal potential system to make each port of the device. The potential difference does not exceed the impact withstand voltage that the device can withstand, thereby protecting the device from damage.
According to the different positions and pressure levels of the equipment, generally the protection level is divided into three levels, and the lightning is discharged step by step, so that the lightning arresters at all levels cooperate with each other, and finally the voltage value is limited to the insulation strength of the equipment. Effectively prevent accidents caused by lightning strikes. 
The first level of protection: Considering that the cables entering the power distribution room are vulnerable to lightning strikes or induced lightning waves, and the lightning current entering the power distribution screen is not diverted and the lightning current is the strongest, therefore, the cable cores of the power distribution screen in the transformer to the equipment room Corresponds to the installation of lightning protection devices, such as the protection of lightning protection device, which can be used to discharge direct lightning strikes and high-intensity induction lightning through the cable. Limit tens of thousands or even hundreds of thousands of overvoltages to thousands of volts.
The second level of protection: taking into account the transmission lines from the power distribution screen to the distribution box of the computer room, mainly for the secondary lightning protection of the power supply, should be at both ends of the cable core between the power distribution screen and the distribution box of the computer room. The lightning protection device is installed on the ground to protect the UPS, rectifiers and other equipment. Since the power surge protector at the distribution box is the primary lightning arrester to limit the voltage, the direct lightning strike and the induced lightning discharge release are optional. A relatively small power surge protector.
Third-level protection: In consideration of the possibility of residual voltage and high-voltage counterattack, the front end of the communication equipment shall also be equipped with differential mode, line, and common-mode power supply lightning protection devices for the protection of terminal equipment. Limiting the overvoltage will not result in Within the scope of equipment damage.
For the signal system, the signal line of the base station generally uses 2Mb/s line, and the core of the signal line at the device interface should also be installed with a corresponding signal lightning protection device, for example, for the network signal line can be installed network signal lightning protection device series (Kejia NKP-TEL-5) For protection, choose antenna signal lightning arrester series (Kejia NKP-TEL-4) for antenna feeders to reduce the damage to communication equipment as much as possible. 
When setting up a lightning protection device, its protection scope should also be taken into consideration. This is because the oscillating voltage is caused by the reflection effect of the lightning wave on the cable between the lightning arrester and the device requiring protection. Its amplitude is proportional to the length of the line and the load impedance. If the cable is long, the residual voltage on the surge protector plus the voltage drop of the cable may still damage the device and cannot protect it. Therefore, the lightning arrester should be installed close to the communication device.
September 04, 2019