The head of the rail electric telescopic door is a single motor, with the power of 260W, 370W, 420W, 550W and 750W W. The head of the trackless electric telescopic door is a double motor, usually both motors are 370W or 420 W.

Extended data

In fact, at present, there are codes and standards for "electric telescopic gate" (JG/T 154-20 13 electric telescopic gate) in China, but it seems to be not detailed enough, especially the control standards of leakage protection and related codes and standards are not clearly pointed out. This standard has no relevant mandatory technical requirements for regular inspection and maintenance of such equipment.

In addition, telescopic doors, which are directly related to people's livelihood, can be designed as low-voltage transmission, which is a more effective way to avoid accidents.

It can be seen that the same accident may happen on any electric telescopic door. Rome wasn't built in a day. If it is used all the year round, but there is no one to maintain it, things will naturally happen. Although some automatic retractable doors are also marked with safety tips, this is not the fundamental solution to the problem.

People's Daily Online-"The murder of electric retractable door" may not be far away from us.