About us Since the beginning of its conception in 2005 by some contractors in the construction industry, an idea came along to gather information, experience and code related material for a typical home in Ontario. On this site you will find personal notes, referencing to building codes, wiring schematics, electrical and load rating tables and […]

    (1)  Except as required by Articles, 3.3.2.9. and 3.3.2.10., aisles leading to egress doors or exits shall be provided in conformance with Sentences (2) to (27) in places of assembly that contain fixed seats.     (2)  In this Subsection, a converging aisle is an aisle into which the occupants of two or more aisles converge in […]

Appendix B Rule 10-604 Supplementary bonding is required for service entrance equipment as the supply authority side conductors are considered unprotected. Once past the main protective devices, standard bondingmethods apply. Source: Appendix B Rule 10-604, CSA C22.1:21, Canadian Electrical Code, Part 1 (25th Edition), Safety Standard for Electrical Installations. © 2021 Canadian Standards Association. Please […]

Appendix B Rule 10-616 Rule 10-616The principal purpose of a bonding conductor is to provide a low impedance path for fault current and facilitate the operation of overcurrent protective devices, in addition to serving as an equipotential bonding connection. Rule 10-616 1) and 3) a)When the system or circuit conductors on the secondary side of […]

Appendix B Rule 12-012 Wooden planks, when buried in the ground, should be treated with a solution of pentachlorophenol orother suitable material as recommended by a manufacturer of wood preservatives. The use of creosoteas a wood preservative in such installations is not recommended because it is known to damage rubberand thermoplastic insulations and acts as […]

Appendix B Rule 12-100 Table 19 indicates the maximum allowable conductor temperature for various types of building insulated conductors and cables. Where the surface temperature and/or the temperature on the insulation of conductors, cables, or raceway systems exceeds 90 °C, such assemblies are a potential fire hazard if installed adjacent to combustible material and, in […]

Appendix B Rule 12-3000 Sealing around outlet boxes and cables to provide an air barrier may be required. Requirements for airand vapour barriers are in the National Building Code of Canada, Subsections 9.25.3 and 9.25.4 Source: Appendix B Rule 12-3000, CSA C22.1:21, Canadian Electrical Code, Part 1 (25th Edition), Safety Standard for Electrical Installations. © […]