(1) The employer shall ensure at a construction site of building or other construction work that no building worker is raised, lowered or carried by a power driven lifting appliance except-
(a) on the driver's platform in the cage of a crane; or
(b) on a hoist; or
(c) on an approved suspended scaffold :
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Provided that a building worker may be raised, lowered or carried by a power driven lifting appliance -
(i) in circumstances where the use of a hoist or of a suspended scaffold is not reasonably practicable and the requirements of sub- rule (2) are complied with ; or
(ii) on an aerial cableway or aerial ropeway in case where the requirements of sub-rule
(2) are complied with ;
(2) The requirements referred to in provision to sub-rule (1) are as below, namely:-
(i) that the appliance referred to in such provision can be operated from one position only;
(ii) that any winch used in connection with the appliance referred to in such proviso comply with the requirements of rule 61 ;
(iii) that no person shall be carried by the appliance referred to in such proviso except -
(a) in a chair or cage, or
(b) in a skip or other receptacle at least three feet deep which is suitable for safe carriage of a person and any such chair, cage, skip or other receptacle is made of good construction, sound material, arid has adequate strength and is properly maintained with suitable means to prevent any occupant therein from falling out of it and is free from any material or tools which may interfere with the handhold or foothold of such occupant or otherwise endanger him; and
(iv) that suitable measures shall be taken to prevent the chair, cage, skip or other receptacle from spinning or tipping in a manner dangerous to any occupant therein.
80. Hoists carrying persons - The employer shall ensure at a construction site of a building or other construction work that-
(a) no building worker is carried by a hoist unless it is provided with a cage which -
(i) is so constructed as to prevent, when its gates are shut, any building worker carried by such hoist from falling out of it or from being trapped between any part of such cage and any fixed structure or other moving part of such hoist or from being struck by articles or materials falling down the hoist way on which such hoist is moving;
and
(ii) is fitted on each of its side from which, access is provided to a landing place with a gate which has efficient interlocking or other devices to secure so that such gate cannot be opened except when such cage is at a landing place and that such cage cannot be moved away from any such place until such gate is closed.
(b) every gate in the hoist way enclosure of such hoist used for carrying persons is fitted with efficient interlocking or other devices to secure so that gate cannot be opened except 42 when the cage of such gate is at the landing place, and that such cage cannot be moved away from the landing place until such gate is closed.
(c) in every hoist used for carrying building workers these are provided suitable and efficient automatic devices to ensure that the cage of such hoist comes to rest at a point above the lowest point to which such cage may travel.
81. Attachment of loads - The employer shall ensure at a construction site of a building or other construction work that-
(a) when a sling is used to hoist long materials, a lifting beam is used to space the sling legs for proper balance and when a load is suspended at two or more points with slings, the eyes of the lifting legs or such slings are shackled together and such shackle or eyes of the shackled slings are placed on the hook or the eyes of such lifting legs are shackled directly to the hoisting block, ball or balance beam, as the case may be;
(b) every container or receptacle used for raising or lowering stone, bricks, tiles, slates or other similar objects is so enclosed with the hoist as to prevent the fall of such objects ;
(c) a loaded wheel barrow-placed directly on a platform of a hoist for raising or lowering of such wheel barrows is so secured that such wheel barrows cannot move and such platform is enclosed to prevent the fall of the contents kept in such wheel barrows ;
(d) landing of a hoist are so designed and arranged that building workers on such hoist are not required to lean out into empty space for loading and unloading any material from such hoist.
82. Tower Cranes - the employer shall ensure at a construction site of a building or other construction work that-
(a) no person other than the operator trained and capable to work at heights are employed to operate tower cranes ;
(b) the ground on which a tower crane stands has adequate bearing capacity;
(c) bases for tower cranes and trucks for rail-mounted tower cranes are firm and levelled and such cranes are erected at a reasonably safe distance from excavations and are operated within gradient limits as specified by the manufacturer of such cranes;
(d) tower cranes are sited where there is a clear space available for erection, operation and dismantling of such cranes;
(e) tower cranes are sited in such a way that the loads on such cranes are not handled over any occupied premises, public thoroughfares, railways or near power cables, other than construction works for which such cranes are used;
(f) where two or more tower cranes are sited and operated, every care is taken to ensure positive and proper communication between operators of such cranes to avoid any danger or dangerous occurrences ;
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(g) tower cranes are used for loading magnet or demolition ball service, piling operation or other similar operations which could impose excessive load stresses on the crane structure of such cranes;
(h) the instructions of the manufacturer of a tower crane and standard safe practices regarding such crane are followed while operating or using such crane.