Receptacles (see Appendix B)

1) All receptacles installed outdoors on fixed or floating piers, docking facilities, marine wharves, or boathouses, including receptacles intended to supply shore power to boats, shall

a) for receptacles rated 15 A and 20 A, be of the straight blade or locking type conforming to either Diagram 1 or 2;
b) for receptacles rated over 20 A up to and including 60 A, be of the locking type conforming to Diagram 2 or of the pin and sleeve type; or
c) for receptacles rated over 60 A, be of the pin and sleeve type.

2) Receptacles shall be made of corrosion-resistant materials and shall be provided with weatherproof enclosures.

3) Receptacles exposed to the weather shall be installed in accordance with Rule 26-708.

4) Receptacles shall be located above the permanent or maximum normal water level so that they cannot become immersed in water and shall be protected from splashing.

5) All receptacles rated at 125 V, 15 A or 20 A installed in conformance with Subrule 1) shall be protected by a ground fault circuit interrupter of the Class A type.

6) Notwithstanding Subrule 1), receptacles of other configurations shall be permitted for connection of shore power where the receptacles specified in Subrule 1) are not suitable for the specific application.

Source: Rule 78-050, CSA C22.1:21, Canadian Electrical Code, Part 1 (25th Edition), Safety Standard for Electrical Installations. © 2021 Canadian Standards Association. Please visit