Section 114(2) in The Indian Electricity Rules, 1956
(2)Unless the apparatus is so constructed, protected and worked as to obviate the risk of fire, no inflammable material shall be used in the construction of any room, compartment or box containing apparatus, or in the construction of any of the fittings therein. Each such room, compartment or box shall be substantially constructed and shall be kept [dry and illuminated and efficient ventilation,] shall be provided for all apparatus installed therein.
