The day before yesterday, a customer from Xiangyang called our company and wanted to understand the performance indicators of the high-voltage cable. I recorded some basic information about the company’s customers and sent it to him via WeChat, as follows:
High-voltage cables are divided into 75KV and 90KV optical machines according to the voltage. Generally, 75KV high-voltage cables are suitable for 125KV X-ray machines, and 90KV high-voltage cables are suitable for 150KV X-ray machines.
The high-voltage cable is one of the important components of the X-ray machine. The performance indicators of the high-voltage connector include the following:
1. Contact resistance: The contact resistance of each contact pair of the plug and socket should be no more than 0.001Ω.
2. DC withstand voltage: 94kV (peak) pulsating DC voltage is applied between the three-core cable plug and socket contact pair and ground for 15 minutes without breakdown.
3. Pull-out force: The pull-out force after the plug and socket are inserted should not be less than 30N but not greater than 100N.
4. Reliability:
1) When the plug and socket are not energized, the service life of not less than 1000 plugs should be guaranteed;
2) The three-core high-voltage cable and socket are under the conditions of 70kV (peak), 50Hz AC voltage, and oil temperature of 100 ° C, and there is no breakdown phenomenon after being energized for 200h.
Newheek high-voltage cable is divided into different lengths, and the length can also be customized according to customer needs.