S-2.1, r. 4 - Safety Code for the construction industry

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4.4.10. An explosive depot must be farther from a 44 kV or more overhead electric power line than the distance between the supports of the line located near the depot. Where the distance between the supports of the line is greater than 15 m, the depot must be placed from that line at the greater of the following distances:
(a)  15 m;
(b)  the result of the following formula: P / 2 - H (in meters), where “P” is the distance between the supports of the transmission line and “H” is the height of the supports of the transmission line; or
(c)  the distance provided for in column 2 of the table in Schedule 2.3.
O.C. 57-2015, s. 32.