CSA C22.2 No. 0.12:19

This Standard applies to enclosed equipment that is to be permanently field connected to line or load circuits rated 1000 V or less in accordance with CSA C22.1, Canadian Electrical Code, Part I.

This Standard applies to the minimum wiring space and wire bending space requirements for field installed wires terminating in or passing through enclosures or terminal boxes.

The requirements are considered to be the minima that would permit field wiring without damage to the wires.