IEC 60273 Insulator Cantilever, tension, compression torsion strength universal testing machine. 

UT1069TFN-200 Insulator Cantilever, tension, compression torsion strength universal testing machine can detect technical indicators such as tension compression load, maximum bending force, torque, and maximum torque of insulators and composite insulators in real time, and test curves such as force deformation, bending moment turning angle, and torque twisting angle.

Mainly used in the high-voltage porcelain industry, conducting bending performance tests in accordance with GB/T 775.3-2006 for large, medium, and small insulators, composite insulators, electrical porcelain bushings, and other components. Widely used in industries such as production enterprises, research institutes, and quality supervision.

The integrated testing machine adopts computer operation, servo control, and high-precision pressure sensors to achieve automatic control and measurement of stress and strain. It has great adaptability and can facilitate the transportation of workpieces. The system has high sensitivity and can save and print instantaneous values. Different product test values and holding times can be set arbitrarily, and experiments can be automatically completed,

The whole machine adopts a high rigidity frame, which is subjected to internal force and has no external force output, so it will not cause equipment damage,

Three channel collaborative control can achieve synchronous loading of tension, bending, and torsion, simulating the stress state of the tested component during actual installation. Adding a dynamic controller can simulate dynamic fatigue tests such as earthquakes, wind blows, etc. Adding an environmental box can simulate the performance of insulators in resisting external forces under different climatic conditions.

2.1. Destructive load test procedure

During the experiment, the load should be increased steadily and without impact before reaching 75% of the specified failure load. Then, the load should be increased at a rate of 35% -100% of the specified bending failure load per minute until the test specimen fails (obvious failure phenomenon can be observed, or the load indication value of the testing machine no longer increases). At this time, the load value is the bending failure load of the test specimen.

For pillar insulators, the load should be steadily and without impact increased before 50% of the specified failure load. Then, the load should be increased at a rate of 35% -100% of the specified bending failure load per minute until the test specimen fails (obvious failure phenomenon can be observed, or the load indication value of the testing machine no longer increases). At this time, the load value is the failure load of the test specimen.

If only a withstand load test is required, the load shall be increased to the standard specified test load. If the test specimen does not damage under this load, this test shall be passed.

2.2. Procedure for load testing one by one

During the experiment, the load should be uniformly and without impact raised to the specified individual load values, and kept under this load for 10 seconds. The test sample should not be damaged, the adhesive should crack (excluding small gaps between the adhesive and metal accessories), or there should be obvious permanent deformation of the metal accessories, as well as obvious displacement phenomena between various parts.  

When using a four-way (or multi-directional) load test, the load should be immediately removed (or the specific product standard residence time should be used) after the test load is added to the specified test load value. The test sample should not be damaged, the adhesive should not crack (excluding small gaps between the adhesive and metal accessories), or there should be obvious permanent deformation on the metal accessories and obvious displacement phenomena between various parts. For each direction of the experiment, the sample should be rotated 90 degrees. Angle (or angle calculated based on the number of test directions).

2.3. Deviation test procedure under load

The complete post insulator is installed on a rigid support, and a bending load is applied to the free end of the test specimen. The offset at each load point is measured at 20%, 50%, and 70% of the mechanical failure load.