Wire spool insulator EX-3

Spoolinsulator is an electrical engineering term published in 1998. Format of common problems with spool type insulators: PDF Suzhou Electric Power Industry Vocational Skills School Appraisal Institute Vocational Skills Appraisal Operation Paper Job Type: Distribution Line Worker Unit: Name: Score: Test Text: Binding of Wires on Insulators Exam Time Limit: 20 minutes This volume has a maximum score of 100. The starting time of the operation is from time to time, and practical time needs to be explained. 1. The operator completes it independently. 2. Select the tools, materials, equipment, and site required for the work according to the question. 1. Install a cross arm (with 2 butterfly insulators and rod type needle insulators on the cross arm) at an appropriate position on the pole. Cross binding method, the binding method is correct, the binding is firm and tight. The fixing of overhead distribution line conductors on straight pole pin insulators and tension pole butterfly insulators is commonly done using the wire winding method for pole climbing operation (2). The binding material for aluminum stranded wire and steel core aluminum stranded wire is the same as the wire material, but aluminum magnesium alloy wire should use aluminum binding wire, and insulated wire should use iron binding wire with an outer sheath. The diameter of aluminum binding wire should be within the range of 2.0-2.6mm. Before binding the aluminum wire, wrap a 10mm wide and 1mm thick aluminum tape around the contact area between the wire and the insulator, with a winding length exceeding the binding length by 5mm2.