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熔断器的过载保护作用是众所周知的,然而不少X线机在熔断器的设置上都存在一些问题。作者遇到过一台KB400mAX线机的点片线路因其中一根线对地短路,造成一大捆控制线烧熔,遇到过一台200mAX线机的旋转阳级控制线与地短路造成相应线路烧坏。遇到过一台北京医用射线厂生产的500mAX线机天轨吊架控制线因其中一根线对地短路,造成从控制台到天轨吊架之间的一把控制线烧毁。原因是现在多数X线机都是使用380伏电源,这对X线机的电源是有利的。但是X线机的内控制线路多数是用220伏电源,
Fuse overload protection is well known, but many X-ray machine in the fuse settings there are some problems. The author encountered a KB400mAX line machine because of one of the point line circuit line to ground short circuit, resulting in a bunch of control line melting, encountered a 200mAX line machine rotating positive control line and the ground short circuit caused Burn out the line. Encountered a Beijing medical ray plant 500mAX line sky rail hanger control line due to one of the lines to ground short, resulting in a control line from the console to the day rail hanger burned. The reason is that most X-ray machines now use 380 volt power supply, which is beneficial to the power supply of the X-ray machine. However, most of the X-ray machine’s internal control circuit is powered by 220 volts,