Is a door machine chain the same as a door light chain

Not the same. Door-machine interlock is the detection room protection door and X-ray flaw detection machine high-voltage power supply interlock; such as closing the door is not in place, the high-voltage power supply can not be started normally, high-voltage power supply is not closed, the door can not be opened normally, and door-light interlock is the detection room protection door and the outside of the console to be set up on the work status warning light, and interlocked with the door, the work status indicator shows that the flaw detection operation is being carried out, the protection door can not be opened, to prevent the flaw detection operation The two are not the same. Door-machine interlocking flaw detection room in and out of the workpiece door and personnel access door should be interlocked with the flaw detection machine.