Detailed analysis of thermal stability test instrument shared by Cable Detection Equipment Supplier.

Thermal stability tester test details analysis:

Before any test, as a test operator, we have to do some preparation work. What do we need to prepare for the thermal stability tester before we start the test? For some detailed operation of the thermal stability testing machine, the Cable Detection Equipment Factory reminds us to pay attention to the details such as the replacement frequency of the test paper and the preparation of samples. As we all know, the thermal stability test needs to be conducted in accordance with the standard GB/2951.32-2008. Today, the details of the thermal stability test instrument are analyzed:

Anti-Cracking Winding (Thermal Shock) Tester

1. Cut three samples from the insulation or sheath of each insulated core. Each test consisted of two or three narrow strips of length from 20 to 30mm, weighing approximately (50±5) mg.

2. Insert a dry universal test paper with a length of 15mm and a width of 3mm into the open end (top) of the glass tube. The paper tape extends about 5mm out of the tube mouth, and bend it and fix it in the position.

3. Place the glass tube into the heating device heated to the specified test temperature to a depth of 60mm.

4. The time taken to change the color of universal test paper from pH 5 to pH 3; Or the test continues until the color of the paper does not change during the specified test period. When the red color on a universal dipstick corresponding to pH 3 begins to change significantly, the point of color change should be considered. When the test time is expected to end, the universal test paper should be replaced every 5 ~ 10min (especially for long time stability test) to make the change point easier to see.

The above are some details of the test of the Cables Heat Aging Test Chamber. We all know that the average value of the thermal stability time of the three samples evaluated by the test results of the thermal stability tester should not be lower than the specified value of the relevant cable product standards. The details in the operation of the thermal stability testing machine will reduce the test error!

For the wire and cable testing equipment similar to the thermal stability tester, the detail problem is not to be ignored.