Most of us have seen or read something about the figure commonly known as the fire triangle (oxygen, heat, and fuel), which is a working model to illustrate and to help one understand the ingredients necessary for most fires. There is another odd triangle that contributes to most electrocutions associated with the swimming pool environment. [...]
Between the 2006 Canadian Electrical Code and the new 2009 edition in Section 68 we have six rule changes, one Appendix B change, and one Table change. The intent of this article is to detail these changes along with rationale for the changes. First is Subrule 68-054 (2), the words “other elevated surfaces associated with [...]
Wonderful though electricity was in its early days as a miraculous source of light and power, installations did seem to have a habit of catching fire rather too often. In 1896, a young Swiss professor, François Borel, who was researching ways of improving cables, filed a patent for an all-mineral-insulated fire-resistant cable. But it was [...]
The common thread throughout the first two articles in this series has been the need for electrical inspectors to be armed with the facts to counter challenges to electrical safety. Knowing the facts better enables inspectors to perform high-quality inspections that benefit the installer or electrical contractor, end users and the local jurisdiction. It also [...]
