A Round Cable Low Temperature Winding Testing Device is a laboratory testing device used to assess the ability of a round cable to withstand low-temperature conditions. The device is used to simulate and measure the effects of low temperatures on the cable's insulation and its ability to function correctly.

The device consists of a testing chamber that is designed to maintain a specific low temperature, usually ranging from -40°C to -80°C and a motorized winding apparatus that is used to apply tension and bend the cable during the testing process. The cable is wound around a mandrel of a specific diameter and is subjected to a set number of winding cycles, typically ranging from 5,000 to 100,000 cycles.

To perform the test, the cable is placed on the winding apparatus and subjected to low-temperature conditions for a specified period, typically ranging from a few hours to several days. During this time, the cable is repeatedly wound and unwound around the mandrel to simulate the effects of bending and flexing.

After the testing period is complete, the cable is inspected for any visible signs of damage, such as cracks or breaks in the insulation. The cable's electrical performance is also tested to ensure that it has not been degraded by the low-temperature conditions.

The Round Cable Low-Temperature Winding Testing Device is used to evaluate the suitability of a cable for use in low-temperature environments, such as in outdoor installations in cold climates. The results of the test can also be used to compare the performance of different cables and to identify areas for improvement in the design and manufacturing of round cables.