Application Of Non-destructive Testing Technology For Power Fittings

The application of ultrasonic technology for overhead line hardware detection involves emitting high-frequency sound waves into the component material. When the waves encounter internal discontinuities or characteristic changes, some of the sound energy is reflected back. The receiving unit analyzes these echo signals to help determine the type and location of internal defects. This technology allows for analysis at the material's internal level, providing data support for judging trends.

Infrared detection technology is mainly used to evaluate the thermal response characteristics of overhead power line connectors. Using infrared sensors to obtain the surface heat distribution of equipment, abnormal temperature differences can be identified during operation, indirectly reflecting potential problems in materials and connections. Infrared thermography typically involves non-contact acquisition of the inspected object, making it suitable for overhead line components with large spans or difficult access.

Laser technology is an optical measurement method that uses a laser beam to illuminate the component and record reflection data, interpreting information such as geometry, surface changes, and displacement. This technology can capture fine dimensions of overhead power line hardware defects from a distance and can be combined with a 3D scanning system for on-site modeling, thus providing a quantitative basis for screening deformation or micro-cracks.