1.1 Awareness of overhead distribution lines+ 1.2 Recognition of distribution equipment+ 1.3 Recognition of Power Cable Lines+ 2.1 Distribution line inspection+ 2.2 Ring main unit from operation to maintenance operation+ 2.3 Distribution transformer grounding resistance measurement+ 2.4 Measurement of insulation resistance of 10kV power cables+ 3.1 Installation and removal of a set of 10kV line grounding wire operation+ 3.2 Replacement of 10kV overhead line linear pole side phase insulators+ 3.3 Fabrication and installation of GJ-35 tie wire+ 4.1 Replacement of Linear Pole Side Phase Insulators by the Insulated Glove Method - Saf+ 4.2 Replacement of Linear Pole Side Phase Insulators by the Insulated Glove Method with + 4.3 Replacement of Linear Pole Side Phase Insulators by the Insulated Glove Method - Pre+ 4.4 Replacement of Linear Pole Side Phase Insulators by the Insulated Glove Method with + 4.5 Insulation method of electrically lapping leads (1)+ 4.5 Insulation method of electrically lapping leads (2)+