The Testing Requirements For Fuse Holders Include The Following Steps

The testing requirements for fuse holders include the following steps:
Firstly, ensure that the testing environment is at a room temperature of 25 ℃, free from factors such as light and thermal radiation.
2. Hold at IHold current for 15 minutes to ensure that the fuse holder does not operate to determine if it is qualified.
3. Maintain the Itrip current for less than 5 minutes to ensure that the fuse holder operates to determine if it is qualified.
4. Check whether the initial internal resistance Rimin of the fuse holder is within the range specified in the specification.
5. Check whether the internal resistance R1max of the fuse holder after action is within the range specified in the specification.
6. Inspect the appearance of the fuse holder, including checking its foot position and surface area, to ensure there is no rust, deformation, or broken foot condition. The surface should be free of any pollutants or scars. In addition, there should be no deformation or cracks, ensuring that the fuse holder can maintain excellent application performance during use.
7. Fuses can be used for direct installation testing. If the installation process is smooth, it indicates that the product is working well; If the installation process is too loose or unable to install, it indicates that the product selection may not meet the specifications.
Finally, check if the product size of the fuse holder meets the regulations. Its specifications should be consistent with the specifications indicated on the outer packaging box. If the dimensions are not consistent, it may affect the effectiveness of the product.
These steps can help you test the fuse holder to ensure that it meets the expected functional and performance requirements during use.