C22.10-1992

This Code covers 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, with the following exceptions: (a) Installations or equipment employed by an electric or communication utility in the exercise of its function as a utility, and located outdoors or in buildings or sections of buildings used for that purpose; (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) Self-propelled marine vessels except where such vessels are stationary for periods exceeding 5 months and are connected to a shore supply of electricity continuously or from time to time. For coal mines, metalliferous and industrial mines, and quarries, see also CSa Standard CAN3-M421.