An curved arrow pointing right. What are those odd looking things you always see attached to power lines? Turns out, they're called lightning arresters and they're crucial to preventing certain ...

Apparently that is part of their purpose. When presented with lightning, however, they turn to conductors allowing the lightning to pass to ground. You can see their teardown in video form ...

On November 21, the State Grid Bortala Power Supply Company successfully installed lightning arresters on the 110 kV Huanggu Transmission Line, significantly improving its ability to withstand ...