Compared with high voltage 220V, the DC low voltage is more secure, not easy to be thunder attacked, avoidence of transfusion on the long-distanceline.
与220V交流高压电相比,不易引发雷击,无长距离线路传输上的弊端。
3
For the high voltage and long distanceline, the transmission capacity of lines is always affected by the limit of static stabilization and dynamic stabilization.