Galloping power lines may sound ridiculous, but they really do occur and can be very dangerous. The most common cause of galloping lines is ice that builds up on one side of a power line as a result of strong winds. This buildup creates an airfoil, which changes the flow of air around the normally round line. This change in air flow can cause the power line to start to bounce. These lines can bounce and buck enough to hit another line, damage themselves enough to cause a power outage, or even fall to the ground.
Once galloping starts, there is not much a power company can do to alleviate it until winds die down. This is why many power lines have objects, like twisted wire or round or angular pieces of metal attached to the line. These are devices placed on power lines to help reduce the galloping of lines and prevent potential danger.
If you encounter galloping lines, stay away, warn others to stay away, and call the Grand Haven Board of Light & Power Emergency Line 616.842.2241. In addition to the possibility of power outages, there is a danger of the lines or other electrical equipment breaking loose and falling and of ice being dislodged from the lines and falling to the ground.
The Grand Haven Board of Light & Power urges you to pay attention to and be aware of weather forecasts so that you can be prepared and not get caught off guard by a wind storm and to keep the following safety tips in mind after a windstorm:
- When you see power lines on the ground, stay away, warn others to stay away, and contact the BLP Emergency Line at 616.842.2241 or 911. Lines do not have to be arcing or sparking to be live.
- Any utility wire, including telephone or cable lines which are sagging or down, could be in contact with an energized power line also making them dangerous. So stay away from all lines.
- Be alert to the possibility that tree limbs or debris may hide an electrical hazard. Downed power lines can energize objects around it, such as chain link fences and metal culverts.
- Keep in mind that a line that is “dead” could still become energized during power restoration efforts or improper use of generators.
- Never drive over a downed line. It could cause poles or other equipment to come crashing down.
- If you are in a car that has come in contact with a downed power line, stay in your vehicle. Wait until the utility crew has arrived and de-energized the line. Warn others not to approach the car. Only exit the car in the case of fire; and, in doing so, be sure to jump out and away from the car with both feet together. Then hop away while continuing to keep both feet together.
We are proud members of Safe Electricity, find more electrical safety tips @ SafeElectricity.org