On-site repair method for plug-in type sleeve of cable of ring main unit

The invention discloses an on-site repair method for a cable plug-in type sleeve of a ring main unit. The method comprises the following steps: evaluating the damage condition of the plug-in type sleeve according to the position of a surface electric corrosion trace, the maximum electric corrosion depth and the electric corrosion length of the damaged plug-in type sleeve; the repair depth is determined according to the damage condition of the plug-in type sleeve; carrying out equal-thickness grinding and polishing on the damaged cable plug-in type sleeve by adopting a grinding and polishing tool; cleaning, drying and segmented smoothing treatment are carried out on the polished damaged cable plug-in type sleeve; and finally, silicone grease is uniformly smeared on the surface of the cable plug-in type sleeve subjected to segmented smoothing treatment, the cable plug-in type sleeve is connected with the cable terminal, and repairing is completed. According to the method, on the premise of not changing the orig