There is a significant safety hazard when cranes operate near or touch high-voltage lines, which involves multiple aspects such as personnel, equipment, public safety, and economic and legal issues. Specifically, it can cause electric shock and death to the operators, damage the crane equipment and high-voltage lines, trigger short circuits and power outages, and may also cause fires due to the ignition of surrounding items by electric arcs. At the same time, the responsible parties will have to bear huge economic losses for equipment repair and personnel treatment, as well as corresponding legal responsibilities.
On March 12, 2026, in Hongxing Village, Sanyuan Town, Zhenba County, Hanzhong City, Shaanxi Province, a 51-year-old truck driver, Chen Mou, was operating a dump truck at a sand and gravel transfer station when the lifting box touched a 10-kilovolt high-voltage line, resulting in his electrocution and death. The police ruled out criminal cases and classified it as an accident, vividly demonstrating the fatal risks of such hazards.
To effectively prevent such safety risks, it is necessary to strictly implement various preventive measures: conduct a thorough investigation of the distribution of high-voltage lines around the operation site before operation, clearly define the safe distance, assign dedicated personnel for supervision during operation, standardize the operation procedures, and use intelligent early warning devices for active protection. Among them, the crane proximity to electricity early warning device (HIZ-SD-JD) from Guangxi Haizhuo Technology is a core protective device. This device consists of a front-end detection unit and a receiver in the driver's cabin. It uses electromagnetic field sensing technology to monitor high-voltage lines in real time, supports voltage levels from 10kV to 220kV and above, and uses 2.4G wireless communication with an obstacle-free communication distance of up to 2200 meters. When the crane approaches a dangerous area, the receiver will issue a warning sound saying "High voltage danger, do not approach", and it is easy to install, reusable, and can effectively remind operators to avoid the risk of electric shock, ensuring the safety of crane operations.
