On April 12, 2019, there was a strong wind on a transmission line in Changzhou City, Jiangsu Province. The dust-proof net under the line was blown and hung on the line. The Changzhou Power Supply Bureau initiated emergency rescue measures. Due to the ground environment of the construction site, the traditional removal method could not be fast Clean up foreign objects in the power grid. Our company actively responded to the requirements of the Changzhou Power Supply Bureau and dispatched professional and technical personnel to carry a 300W portable laser foreign body remover to the site within 1 hour. After 15 minutes, all were cleaned up and did not cause any impact on the power transmission line. Great appreciation.