source:power adapter Popular:adapter release time:2021-08-09 09:53:07 Article author:sznbone
The power adapter refers to an external power source used to convert the AC grid voltage into a fixed, single-channel low-voltage DC or low-voltage AC output voltage. So what are the lightning protection methods for the power adapter? The following power adapter manufacturers introduce you to four methods:
1. The lightning protection of the lightning protection device is closely related to the installation method. If the lead inductance will cause extra residual voltage, you should roughly shrink the connection between the power line and the lightning protection device and the lightning protection device and grounding sink. The length of the connection board.
2. Multi-level placement of lightning arresters can reduce the extra residual voltage caused by lead inductance. Because the previous lightning arrester has discharged a large and small lightning current to the sky, the latter lightning arrester only discharges one less Part of the lightning current, the reduction of the lightning current will inevitably lead to the reduction of the additional residual voltage on the lead. In order to ensure the energy coordination of the front and rear stages of the lightning arrester, the length of the power cable between the arresters should not be less than 15 meters, otherwise the decoupler should be used to develop energy coordination.
3. The installation of DC lightning protection devices was only proposed in the recently announced lightning protection standards. Because the residual voltage of DC lightning protection devices is much lower than that of AC lightning protection devices, it can effectively improve the rapid equipment of lightning electromagnetic switching power supplies in communication stations. The pulse of wood is dry.
4. Lightning protection of incoming power cables is easy to attract attention, while other power lines entering and leaving communication stations are often squarely looked at, such as lighting street light lines, tower light power lines, and non-telecom facilities renting telecommunication power lines. It is advisable to adopt solar tower lights nowadays, which can reduce a lightning intrusion channel. Other outgoing power lines should be in the area of interest of the lightning protection system, otherwise special lightning protection flashbacks should be adopted.
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