Repair method for power cable insulation and sheath holes

• Main Authors: WANG LEI, ZHANG ZHENPENG, HOU JUNPING, GONG JIAN, TAO XIANTAO, FU PING, GONG HUI, FAN YOUBING, CHU FANWU, ZHANG QIUFEN, DENG KAI, QIN ZIHANG, ZHANG SHIZE, ZHANG WEI, PENG CHAO
• Format: Patent
• Language: Chinese; English
• Published: 09.07.2024
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CONDUCTORS; ELECTRICITY; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES

The invention discloses a repairing method for power cable insulation and sheath holes, and belongs to the technical field of cable repairing. The method comprises the following steps: for a to-be-repaired power cable, determining dielectric parameters of the to-be-repaired power cable, and preparing a C-type repairing liquid based on the dielectric parameters; if the load current-carrying capacity is relatively low, the temperature of a wire core is not high or the depth of the hole to be repaired is relatively shallow, the hole to be repaired is filled with prepared basic repair liquid, so that the hole to be repaired is filled; and irradiating the to-be-repaired hole filled with the C-shaped repair liquid by using an ultraviolet light source, and after the C-shaped repair liquid is fully cured, carrying out polishing treatment on the cured C-shaped repair liquid on the surface of the to-be-repaired hole by using abrasive paper so as to complete repair of the insulation and sheath hole of the power cable. A