X-ray inspection of tension clamp; X-ray inspection of power fittings; X-ray inspection of the connecting tube; X-ray inspection of transmission line fittings; Flaw detection for tension clamps on three span transmission lines
Due to the fact that the tension clamps on 35kV and above transmission lines are mostly connected by hydraulic means, the quality of the compression connection of the tension clamps directly affects the safe operation of the transmission lines. Due to the fact that crimping is a concealed project, there are few methods that can be used to distinguish the quality of crimping during acceptance and operation, and the operability is not high. Therefore, X-ray flaw detection of transmission lines has emerged in the air
The "Major Anti Accident Measures for the" Three Spans "of Overhead Transmission Lines" (State Grid Operation Inspection [2016] No. 413) has made clear requirements for flaw detection. X-ray flaw detection is a non-destructive testing method that utilizes the interaction law between X-rays and materials to form structural images of metal fittings such as tension clamps on the film or imaging device, in order to ensure the detection of internal defects in the pressure pipe through X-ray testing technology.
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