In April this year, at the dispatching and command center of the Kunming Power Supply Section of China Railway Kunming Group Co., Ltd., staff were conducting routine inspections through the video monitoring system. Suddenly, an abnormal scene beside a contact wire caught their attention on the screen - a light object was fluttering in the wind and could potentially intrude into the contact wire area at any moment. The command center promptly initiated an emergency response and successfully dealt with the hazard before it could turn into an accident, thus preventing a possible train delay or suspension due to a short circuit and power outage.

The contact wire of the railway power supply system is the "lifeline" for electric locomotives and EMU trains. However, under the influence of factors such as strong winds, conductive light objects like plastic bags can be blown onto the contact wire, easily causing short circuits and tripping of the power supply lines, resulting in loss of power for the locomotives and posing a serious threat to train safety and transportation efficiency.
How to quickly and safely remove foreign objects?
Hai Zhuo Technology offers an innovative solution - the HIZ-NT-QZY Railway Contact Wire Laser Obstacle Removal Device, which uses laser remote focusing technology to achieve non-contact and precise removal of foreign objects on the contact wire.
Operators can complete aiming and firing from the ground. The laser beam instantly generates high temperatures, quickly melting or burning off objects like plastic bags and nets. The entire process does not require power outages, does not damage the contact wire, and does not require personnel to work at heights.
The laser obstacle removal device is compact, easy to operate, and can respond quickly around the clock, reducing the traditional foreign object removal time of tens of minutes or even hours to just a few minutes. This significantly improves the efficiency of railway power supply emergency response and reduces operational risks.









