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| Weather-Related Causes of Interruptions |
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LightningLightning is the most common cause of weather-related power interruption. In 2008, lightning accounted for approximately 10% of all power interruptions. Lightning can also strike tree's or other objects which can fall onto electrical lines and equipment.
To help reduce the number of interruptions caused by lightning, we install lightning arrestors at substations and on other high voltage equipment which may safely short the lightning energy to the ground.
IceIce storms create a build-up of ice on power lines and trees. The weight of ice causes tree limbs to break and lines to snap.
Westar Energy builds new lines to meet the National Electric Safety Code, ANSI C2. This standard means that our new lines and poles are designed to support 1/2 inches of radial ice in 40 mph winds.
In 2007, Westar experienced the worst ice storm in company history. Learn more about the 2007 ice storm.
Extreme Wind/TornadoesKansas is no stranger to wind. Extreme wind and tornadoes account for approximately 2% of all power interruptions. High winds can cause tree limbs or other objects to fall into power lines. Extreme high winds can cause power lines to touch and short out.
Tornado damage can take out several miles of power lines and cause extended interruptions.
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