Lighting equipment in damp locations or near grounded metal

1) Where luminaires are installed in damp locations or within 2.5 m vertically or 1.5 m horizontally of laundry tubs, plumbing fixtures, steam pipes, or other grounded metal work or grounded surfaces, the luminaires shall be controlled by a wall switch, except as permitted in Subrule 2).


2) Outlet-box-type luminaires marked for use in damp locations and luminaires marked for use in wet locations, with an integral switch, shall be permitted to be installed under the conditions of Subrule 1).

3) Switches (including wall switches) controlling luminaires covered by Subrules 1) and 2) shall be located

a) not less than 1 m from a bathtub or shower stall (this distance being measured horizontally
between the switch and the bathtub or shower stall, without piercing a wall, partition, or imilar obstacle); or

b) not less than 500 mm from a bathtub or shower stall and be protected by a ground fault circuit interrupter of the Class A type.


Source: Rule 30-320, CSA C22.1:21, Canadian Electrical Code, Part 1 (25th Edition), Safety Standard for Electrical Installations. © 2021 Canadian Standards Association. Please visit