An employer shall ensure at a construction site of a building or other construction work that,—
(a) no building worker lifts by hand or carries overhead or over his back or shoulders any material, article, tool or appliances exceeding in weight the maximum limits, as specified in the following table :— Building Worker Maximum Weight of Loan Adult – man 50 kg Adult – woman 30 kg Adolescent – male 30 kg Adolescent – female 20 kg unless aided by another building worker or a mechanical device; and
(b) no building worker, aided by other building worker, shall lift by hand or carry overhead or over their back or shoulders, any material, article, tool or appliance exceeding in weight, the sum total of maximum limits, as specified for each building worker separately under clause (a), unless aided by a mechanical device.