A shopkeeper, to a welder welding a small basket sold to him, with four months later, suddenly the rope from the buckle in the out, the basket of furniture and people

What safety devices should be installed on the height of the basket?

The oldest investigation of the distance from the highest position of the cage and the lowest distance of the beam Not less than 3m When the cage rises to a limited height, the stopper moves the power off Lower limiter: should be able to move the cage before the buffer device, when the cage down to the lower limit, the stopper should automatically cut off the power, so that the cage to stop falling

Spent four months later, this can only be responsible for the furniture owner

The full name of the electric basket is the electric height of the operating basket