More expensive on this design becomes. The doors to the private elevators are made semi-automatic or automatic swing. The latter may be common sliding or telescoping, that is to go at each other. Telescopic design is preferred because less bulky. motion without danger Elevator – a complex technical structure, and his pledge safe operation – strict compliance with existing rules and regulations. The main regulatory instrument in this area are considered ‘installation and safe operation of elevators’, adopted in May 2003.

Newest pubel take into account the requirements of European standard en 81-2. Order lifting equipment should only specialized organizations with appropriate licenses, official permissions and rights. Also Recall that mechanisms must be certified. Ready to use elevator shall be representative of the State Supervision (certification procedure involves a number of difficulties, most of them is the bureaucratic character), then the customer must sign a contract for maintenance of the lift. Work on the survey and routine repairs are carried out on schedule, drawn up in accordance with the requirements of the regulations documents. Modern elevators as easy to use – just press the passengers, and control system will set the speed, the path acceleration and braking, provide a stop at the desired floor. For congestion monitors electronic weighing device.

The issue of security has been resolved in 1854 with the invention of Elisha Graves Otis. Since the system was constantly improved, but the principle of its action stayed unchanged.