The safety-type trolley wire has the characteristics of energy saving, corrosion resistance, and convenient care. Now it has been used all over the world. It is a kind of power equipment for mobile power supply system. Safety sliding contact line, also known as sliding conductor, is called safe sliding connection transmission equipment. The structure of the safety type trolley line is diverse and reasonable. The principle is as follows: due to the movement of the mobile device, the safety type trolley line needs to constantly change its position. In each different position, the mobile device must be able to obtain power at any time, otherwise it will Cannot move continuously. At this time, the trolley line came into being. Several conductors are laid in parallel along the moving track of the mobile device, and the power is turned on. On the mobile equipment, install a current collector that can take electricity from the conductor. In this way, when the equipment is moving, the collector runs synchronously with the equipment, and obtains power from the conductor drag chain at any time, and provides it to the equipment, so that the equipment can move continuously. The equipment composed of these conductors and current collectors is called a safety trolley line.

Protection and maintenance: Safety-type trolley lines should be checked regularly during normal operation. Since electrical equipment is the main production tool of every industrial and mining enterprise, a slight error will directly affect the production efficiency of the factory. When checking the sliding contact line, check whether there is any looseness or disengagement at a joint every 6 meters. When checking the conductor, check whether the movable part is sensitive to rolling, whether the tension spring is fatigued, or the brush is worn out. (These conditions will affect To the conductive function of the sliding contact wire and the tracking function of the conductor. It should be adjusted in time).

During the holiday equipment renovation period, remove the conductor from the conduit and check the wear condition of the conductor brush roller. If the brush extension is less than the specified effective length, replace it in time. When the guide roller is severely deformed, replace it to maintain the conductor. Normal operation and good contact with the brush, and check the cause. Among the parts of the safety trolley wire, the brush is one of the parts that are normally worn out.

For severe corrosive gas environments, it is still necessary to check the corrosion status of the brackets, suspension clamps, and tractors; and take measures in time to apply anti-rust materials. The place where the trolley line is used, such as during infrastructure construction. Do not hit or hit the power transmission conduit, let alone press heavy objects on the power transmission conduit. Avoid the deformation and cracking of the transmission line, which will affect the operation and cause safety accidents. After the completion of the infrastructure construction, the infrastructure waste on the power conduit should be transmitted immediately. During normal maintenance, the staff is not allowed to step on the power transmission conduit or its bracket to avoid damage to the flatness of the entire line and accidents.