(n)While persons are at work on any scaffold or platform in the shaft, the following precautions shall be strictly observed:-(i)the scaffold or platform shall be secured to the sides of the shaft in order to prevent it from swinging;(ii)the opening for the passage of the bucket or other means of conveyance, shall be so protected as effectively to prevent anything falling through it;(iii)the scaffold or platform shall not be lowered or raised except under the order of the authorised persons or pother competent person.
