Section 55 in The Punjab Cinemas (Regulation) Rules, 1952
55.
The auditorium shall be provided with two independent lighting circuits taken from two different and independent sources of supply in the building or place licensed for exhibition. One circuit (hereinafter referred to be the general lighting circuit) which must not enter the enclosure, may include all exit signs and the lighting of all parts of the building to which the public are admitted and shall be connected to the main source of supply in the building; and the other circuit (hereinafter referred to as the emergency lighting circuit) shall be used exclusively for the lighting of the auditorium and shall be controlled from a convenient position within the enclosure and shall be connected to be second independent source of supply as distinct from that used for the general lighting circuit. Before the commencement of each exhibition, it shall be ascertained by the operator, that the independent source of supply provided for the emergency circuit is in satisfactory order and the supply from the same is available for immediate use in case of emergency.
