Electrical Industry Canada: Arc Flash, Shock Hazard, & Fire Safety - 15

Technical Q&A with ESA Technical Advisor Malcom Brown
  
This technical Q&A was done as part of ESA's annual Licence Holder
Meeting on November 18th. A recording of the entire meeting is
availavle online. The technical Q&A began with a general overview of
ESA's top 5 changes provided by Malcom Brown. Following that,
Brown goes through a number of questions submitted by LECs
(Licenced Electrical Contractors), covering several topics, including EV
energy management systems, GCFI and AFCI protection, nuisance
tripping for washing machines and microwaves, smoke alarm requirements,
and common inspection defects.
Brown and the ESA also stressed that LECs should reach out to their
Technical Advisors whenever they have a question or require an interpretation.
The
new code will come into effect May 2022 and is now available for
purchase. The hardcopy is available for $233 and the PDF version for
$199. The digital/PDF version is interactive and includes bulletin
updates and interpretations. Which are also accessible through the
CSA Community of Interest website.
Top 5 changes in the 2021 version of the Ontario Electrical Code:
There were about 330 subjects, 217 revisions, 9 improved interpretations,
and 104 rejects or withdrawn rules.
" The new sections that we think are the top 5 for Ontario are:
Farm buildings housing livestock, series 22-800 - this is particularly
impactful here in Ontario, it was driven by the office of the Fire
Marshal and the Barn Fire Task Force, that's what led to this proposal,
and it will clarify the requirements for housing livestock.
There's a new section on Energy storage systems, series 64-900 -
They've been moved to the 64-900 rules as the technology evolves.
Amended GCFI requirements for outdoor receptacles, Rule
26-407 - this will be a very impactful change. Currently, the code, for
the most part, only requires receptacles outside associated with dwellings.
ELECTRICAL
INDUS TRY CANADA
So, this rule will clarify, if I'm at a community centre or on street or
somewhere like Canada's Wonderland - outdoor receptacles would
also have to be GFCI, so it's really increasing safety for everyone in the
general public.
There is a new rule - receptacles for mobile structures connected to
transfer equipment, Rule 2-318. This was as a result of the coroner's
inquest in Ontario where somebody had needed to use temporary
power when there was transfer equipment and it resulted in a fatality.
This rule attempts to put a receptacle there for workers to use when
they are working on these temporary structures.
Importantly, here in Ontario, there's an amendment. There was a
deletion of Table 39 in the Canadian Electrical Code, however, aſter
review in Ontario we decided to keep Table 39 with some modifications. "
Following
the Top 5 2021 Code changes overview by Brown, he
answered several questions submitted by LECs.
If using an Electric vehicle Energy Management System (EVEMS)
would a 50A Breaker and #6 AWG Coper be acceptable to feed
Electric Vehicle Equipment (EVSE) with a nameplate marked
48A?
No, unless the EVEMS limits the maximum charging current to 40A,
Rule 14-104.
VOLUME 1, ISSUE 6
15

https://www.youtube.com/watch?v=X1T4NE6UxsI https://youtu.be/X1T4NE6UxsI?t=32 https://youtu.be/X1T4NE6UxsI?t=4205 https://esasafe.com/

Electrical Industry Canada: Arc Flash, Shock Hazard, & Fire Safety

Table of Contents for the Digital Edition of Electrical Industry Canada: Arc Flash, Shock Hazard, & Fire Safety