Positive charges distributed in the air are concentrated near the conventional air-termination, so positive polarity lightning of the same polarity avoids the positive charges and possibly strike the ...

ORNL researcher Vipin Kumar, an expert in lightning strike protection for airborne composites, inspects the wind turbine blade tip before he and his team remove it from a mold at DOE’s Carbon Fiber ...

ORNL researchers and technicians prepare to remove the wind blade tips from molds where glass fibers were cured with layers of ORNL carbon fiber. Source | Carlos Jones/ORNL, U.S. Dept. of Energy ...

It’s a safe bet that lightning is going to strike twice around Vipin Kumar. In fact, he makes sure it does – every time he tests new technology to protect sky-high wind turbine blades. As a researcher ...