Guide to the Canadian Electrical Code, Part 1[i], 26th Edition – A Road Map: Section 16 Class 1 and Class 2 Circuits
Although Section 16 is a general section of the Code, the Scope applies specifically to remote control, signal circuits, Class 2 power and data communication circuits connecting power sourcing equipment and powered devices, and voltage or energy limited circuits installed in accordance with the requirements of the Code, unless amended or modified by other sections.