CANADIAN ELECTRICAL CODE, PART ISAFETY STANDARD FOR ELECTRICAL INSTALLATIONS
This Code applies to all electrical work and electrical equipment operating or intended to operate at all
voltages in electrical installations for buildings, structures, and premises, including factory-built
relocatable and non-relocatable structures, and self-propelled marine vessels stationary for periods
exceeding five months and connected to a shore supply of electricity continuously or from time to time,
with the following exceptions:
a) installations or equipment employed by an electric, communication, or community antenna
distribution system utility in the exercise of its function as a utility, as recognized by the regulatory
authority having jurisdiction, and located outdoors or in buildings or sections of buildings used for
b) equipment and facilities that are used in the operation of an electric railway and are supplied
exclusively from circuits that supply the motive power;
c) installations or equipment used for railway signalling and railway communication purposes, and
located outdoors or in buildings or sections of buildings used exclusively for such installations;
d) aircraft; and
e) electrical systems in ships that are regulated under Transport Canada.
For mines and quarry applications, see also CSA M421.
This Code and any standards referenced in it do not make or imply any assurance or guarantee by the
authority adopting this Code with respect to life expectancy, durability, or operating performance of
equipment and materials so referenced.