The employer shall ensure at a construction site of a building or other construction work that- 30
(a) fixed lifting appliances are installed
(i) by competent persons ;
(ii) in a manner that such appliances cannot be displaced by the load, vibration or other influences;
(iii) in a manner that the operator of such appliances is not exposed to danger from loads, ropes or drums, and
(iv) in a manner that the operator can either see over the zone of operation or communicate with all loading and unloading points by signal, or other communication system;
(b) adequate clearance is provided between parts of loads of lifting appliances and
(i). the fixed objects such as walls and posts;
(ii) electrical conductors ;
(c) the lifting appliances, when exposed to wind loading are given sufficient additional strength, stability and rigidity to withstand such loading safely.
(d) no structural alterations or repairs are made on any part of the lifting appliances that affect the safety of such appliances without obtaining the opinion of the competent person to this effect.
61. Winches - The employer shall ensure at a construction site of a building or other construction work that, -
(a) (i) winches are not used if control levers operate with excessive friction or play ;
(ii) double gear winches are not used unless a positive means of locking the gear shift is provided;
(iii) there is no load other than the fall and the hook assembly on the winch while changing gears on a two gear winch ;
(iv) adequate protection is provided to winch operator against abnormal weather ;
(v) temporary seats or shelters for winch operator which may pose hazard to the winch operator or any other building workers are not allowed to be used ;
(vi) control levers are secured in the neutral position and, whenever possible, the power is shut off whenever winches are left unattended.
(b) in use of every steam winch -
(i) measures are taken to prevent escaping steam from obscuring any part of the construction site or other workplace or from otherwise hindering or injuring any building worker ;
(ii) extension control levers which tend to fall of their own weight are counter balanced ;
(iii) winch operators are not permitted to use the winch control extension levers except for short handles on wheel type controls and that such levers are of adequate 31 strength, secure and fastened with metal connections at the fulcrum and at the permanent control lever;
(c) in use of every electric winch, a building or other construction worker is not permitted to transfer, alter or adjust electric control circuits in case of any defect in such winch.
(d) electric winches are not used for building work where -
(i) the electromagnetic brake is unable to hold the load ; or
(ii) one or more control points, either hoisting or lowering, not operating properly.