Mixed Elevator Cable

Mixed Elevator Cable

Elevator or lift cables are the link between the controller and elevator trolley, and are responsible for the power and signal transmission. They are usually multi-conductor cables constantly in motion, thereby they need to have a long life. Almost all pulley elevators have multiple cables -- between four and eight total. Even if one cable snapped, the remaining cables would hold the elevator car up. In fact, just one cable is usually enough. Elevator's cables almost never snap. And if a cable did snap, there are backup cables attached. Even if all the cables snapped, an elevator still would not fall to the bottom floor. Elevators have a passive, automatic, built-in braking system.

Elevator ropes are highly engineered and made of steel with other composites. Also they are not single wires but several strands of various sizes wrapped together. A typical cable or rope can have over 150 strands of wire precisely designed to be strong, flexible, and give long service.