External damage protection warning instrument for 220kV and 66kV lines

• Main Authors: NIU JIANG, LEI HONGYANG, WANG JIHONG, DONG ZHENG, ZHANG SEN, GUAN WENPENG, TAO JIANJUN, ZHANG LIN
• Format: Patent
• Language: Chinese; English
• Published: 05.09.2012
• Subjects: ALARM SYSTEMS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINEDOPTICAL AND ELECTRIC CABLES OR LINES; ORDER TELEGRAPHS; PHYSICS; SIGNALLING; SIGNALLING OR CALLING SYSTEMS

The utility model relates to an external damage protection warning instrument for 220kV and 66kV lines, which comprises a cabling pulley, an insulating bar, two insulating rods and an aluminum tube. The two insulating rods are fixed to two ends of the insulating bar respectively, the bottom ends of the insulating rods are sleeved on the aluminum tube, and the top ends of the insulating rods are connected with the cabling pulley. The external damage protection warning instrument is simple in structure, low in production cost and convenient in installation and use, line trip cannot be caused, constructors can be reminded of the safety distance, trip or damage of the lines due to external damage can be greatly decreased, the constructors originally need to work at a selected spot of a construction site for a long period of time at ordinary times, only the warning instrument needs to be used now, labor is saved, line operation safety and power supply reliability are improved, and live installation and detachment