(1) A correct plan, on the same scale as the plan kept at the mine in fulfillment of the requirements of the Mines Act, 1952 (35 of 1952), and Single Line Diagram of the electrical installations from point of commencement of supply shall be available in the office at the mine showing the position of all fixed apparatus and conductors therein, other than lights, telecommunication or signalling apparatus, or cables for the same.
(2) A similar plan on the scale not less than 25 cm to a km (1:4000) shall be kept by the manager or owner of one or more wells in any oil-field.
(3) A similar plan and Single Line Diagram on such scale as the Central Government may direct and Single Line Diagram showing the position of all electric supply lines shall be kept in the office of any licensee, owner or other person transmitting or distributing electricity in a mine or oil-field.
(4) The plans specified under this regulation shall be examined and corrected as often as necessary to keep them up-to-date and the dates of such examinations shall be entered thereon by the manager or owner of the mine or wells and such plans shall be available to the Inspector, or inspector of mines, at any time and in case extent of hazardous area is revised, equipment covered under such area shall be reviewed as per the relevant standards and or ATmosphere EXplosible.