Receptacles exposed to the weather (see Appendix B)
1) Receptacles exposed to the weather shall be provided with wet location cover plates.
2) Receptacles of CSA configurations 5-15R, 5-20R, 5-20RA, 6-15R, 6-20R, and 6-20RA shall be provided with cover plates suitable for wet locations, whether or not a plug is inserted into the receptacle, and marked “Extra Duty”.
3) Notwithstanding Subrules 1) and 2), cover plates marked “Wet Location Only When Cover Closed”, or the equivalent, shall be permitted for receptacles
a) installed facing downward at an angle of 45° or less from the horizontal; or
b) located at least 1 m above finished grade or floor level and not in a wet location.
4) Where receptacles exposed to the weather are installed in surface-mounted outlet boxes, the cover plates shall be held in place by four screws or by some other equivalent means.
5) Where receptacles exposed to the weather are installed in flush-mounted outlet boxes, the boxes shall be installed in accordance with Rule 12-3016 and the cover plates shall be fitted to make a proper weatherproof seal.
Source: Rule 26-708, CSA C22.1:21, Canadian Electrical Code, Part 1 (25th Edition), Safety Standard for Electrical Installations. © 2021 Canadian Standards Association. Please visit store.csagroup.org