A person must not place any material, or allow any material to remain, in a manner that will—
(a) prevent access to any switchboard or door, gate or entrance to a substation, switchroom or switchyard of an electrical installation; or
(b) restrict the free flow of air through any opening or fitting used for ventilation in the walls of a substation, switchroom or switchyard of an electrical installation.
Penalty: 20 penalty units.
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