Section 99(1) in The West Bengal Factories Rules, 1958
(1)The following occurrences in a factory, whither or not attended by personal injury or disablement, are declared as dangerous occurrences :-(a)bursting of a plant used for containing or supplying steam under pressure greater than atmospheric pressure;(b)explosion of a receiver or container used for the storage at a pressure greater than atmospheric pressure of any gas or gases (including air) or any liquid or solid resulting from the compression of gas;(c)explosion, fire, bursting out, leakage or escape of any molten metal, or hot liquor, or gas;(d)collapse or serious accident of any plant, machinery, hoist, lift, lifting Machine, lifting tackle, and the over turning of a crane; and(e)collapse or subsidence of any floor, gallery, roof, bridge, tunnel, chimney wall, building or any other structure.
