Broken Insulation Repair Based on Two-component Sub-polymer Resin Technology

Abstract

During the installation and use of cables, micro-damage or micro-cracks in the insulation and sheath materials of cables inevitably occur due to external factors as well as their own ageing, and it is difficult to detect minor defects within the cables with existing inspection techniques. During cable operation, micro-cracks within the insulation material can trigger and accelerate the growth of electrical branches under the action of a continuous electric field, eventually breaking through the insulation material and causing irreparable disaster. In China's economic growth, power demand is growing, how to ensure the safe and reliable operation of electricity is a major problem in the operation and maintenance of power grids, whether above ground power cables or directly buried underground laying power cables, can not solve the power cable outer insulation layer damage in a timely manner, there is a great safety risk in the process of operation. The need to study a power cable outside the emergency repair materials and special supporting utensils, can quickly match a variety of field applications, timely repair of power cable outer insulation layer damage, to the power enterprise power production and the development of the local economy to bring protection, to avoid the power cable leakage caused by personal safety and productive accidents.