CSA C22.4 NO. 1:09 (R2018)

This Code specifies objectives to provide for the safety of persons, livestock, and property against dangers and damage that can arise from the use of electrical installations and to provide for the proper functioning of those installations. In addition, this Code sets objectives for the protection of property against damage, if the damage can lead to unsafe events or conditions for persons and livestock.

This Code specifies safety objectives for the following criteria in relation to electrical systems operating or intended to operate at all voltages in electrical installations within industrial facilities:
(a) design;
(b) selection of electrical equipment;
(c) erection and verification; and
(d) operation and maintenance.