152 Electric: stations, Ch. 30. No. 2.] Factories. of the last named provisions with respect to means of escape in case of fire and safety provisions in case of fire, the factory shall be deemed to include any part of the building used for the purpose of the factory: Provided that the owner shall be responsible for the cleanliness of sanitary conveniences only when used in common by several tenants, and shall be responsible for any contravention of the provisions, regulations or orders relating to hoists and lifts, steam boilers, means of escape in case of fire, and safety provisions in case of fire, only in so far as the said provisions, regulations or orders relate to matters within his control. Electrical Stations. 45. (1) The provisions of this Ordinance shall apply to any premises in which persons are regularly employed in or in connection with the processes or operations of generating, transforming or converting, or of switching, controlling or otherwise regulating, electrical energy for supply by way of trade, or for supply for the purposes of any transport undertaking or other industrial or commercial undertaking or of any public building or public institution, or for supply to streets or other public places, as if the premises were a factory and the employer of any person employed im the premises in or in connection with any such process or operation were the occupier of a factory. (2) The provisions of this Ordinance shall also apply to any other premises in which any such processes or operations as aforesaid are carried on or performed for such supply as aforesaid, being premises large enough to admit the entrance of.a person after the machinery or plant therein is in position, as if the premises were a fac- tory and the employer of any person employed in the premises in or in connection with any such process or operation were the occupier of a factory. (3) No such premises as aforesaid shall be excluded from the provisions of this section by reason of the pro- cesses or operations being carried on, or the machinery or plant being situated, entirely or partially in the open air. (+) Subsections (1) and (2) of this section shall not, except in so far as the Governor in Council may by order direct, apply to any premises where the aforesaid processes