What Are The Key Dimensions Of The Pre-insulated Bushing That Need To Be Inspected?

During routine inspections, key dimensions such as the length, inner diameter, outer diameter, and wall thickness of pre insulated sleeve should be measured first and compared with relevant standards. By comparing with the dimension table or national standard specifications provided by the manufacturer of pre insulated junction sleeve, it can be determined whether the selected insulated joint sleeve is within the allowable range.