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0 | 24-01-FL.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/24-01-FL.pdf |
FLASH NOTICE
Electrical Safety Authority | 155A Matheson Blvd. West | Mississauga, ON | L5R 3L5
1-877-372-7233 | esasafe.com
June 2024
Flash 24-01-FL
ESA Temporarily Permitting Sale and Use of Heat Alarms Certified to US standard
ANSI/UL 539 Eighth Edition
Background:
Informatio... | |
1 | 24-01-FL.pdf | 2 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/24-01-FL.pdf |
FLASH NOTICE
Electrical Safety Authority | 155A Matheson Blvd. West | Mississauga, ON | L5R 3L5
1-877-372-7233 | esasafe.com
Example:
Kidde Model HD135F
BRK Model HD6135FB
| |
2 | 25-31-FL.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/25-31-FL.pdf | FLASH
April 4, 2025
©Electrical Safety Authority Flash 25-31-FL Page 1 of 1
Flash 25-31-FL
Removing Distributor’s meter seals and meters
Background:
It has come to ESA’s attention that due to the storm and the power interruption, some
persons including Licensed Electrical Contractors (LECs), are removing the... | |
3 | 22-35-FL.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-35-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-35-FL Page 1 of 1
Flash 22-35-FL
Supersedes 19-35-FL
Electrical Safety Authority Warns of Fire and Shock Hazards
Associated with Cheater Cords
The ESA and the Ontario Infrastructure Health and Safety Association are warning end
users and contractors abo... | |
4 | 22-39-FL.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-39-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-39-FL Page 1 of 2
Flash 22-39-FL
Supersedes 21-39-FL
Hazards associated with raising of buildings
The Electrical Safety Authority (ESA) has seen an increase in the number of buildings,
such as cottages, being raised while the electrical supply to the ... | |
5 | 22-39-FL.pdf | 2 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-39-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-39-FL Page 2 of 2
Direction:
• Contact the Local Distribution Company (LDC) to request the power to be
disconnected.
• Obtain a notification of work from ESA when replacing/extending ground
wires or other electrical alterations.
• When hiring a contract... | |
6 | 25-15-FL.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/25-15-FL.pdf | FLASH
May 2025
©Electrical Safety Authority Flash 25-15-FL Page 1 of 3
Flash 25-15-FL
Supersedes 22-27-FL
Use of temporary portable generators
Background:
Over 250,000 customers in Ontario lost electrical power as a result of the ice storm that
hit Southern Ontario in December 2013. During this distressed... | |
7 | 25-15-FL.pdf | 2 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/25-15-FL.pdf | FLASH
May 2025
©Electrical Safety Authority Flash 25-15-FL Page 2 of 3
Other tips to ensure you’re using portable generators safely are:
• Never use a generator indoors; use it in a dry area outdoors and away from open
doors, windows and vents.
• Never connect portable generators to electrical appliances or ... | |
8 | 25-15-FL.pdf | 3 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/25-15-FL.pdf | FLASH
May 2025
©Electrical Safety Authority Flash 25-15-FL Page 3 of 3
Diagram F1 – Temporary setup for portable generator
| |
9 | 22-11-FL.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-11-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-11-FL Page 1 of 2
Flash 22-11-FL
Supersedes 19-11-FL
Luminaires retrofitted with T8 fluorescent tubes
Background:
ESA has been made aware of a number of field problems associated with T12
luminaires retrofitted to more energy-efficient T8 fluorescent re... | |
10 | 22-11-FL.pdf | 2 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-11-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-11-FL Page 2 of 2
Incorrect installations - Hazard:
No other wiring configuration is recommended. Incorrect wiring configurations allow
excessive current to pass through the lamp(s) cathodes, potentially overheating the
lamp base and the lamp holder exce... | |
11 | 22-03-FL.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-03-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-03-FL Page 1 of 1
Flash 22-03-FL
Supersedes 19-03-FL
Test for voltage before you work – It could save your life
Incidents and fatalities can be reduced / mitigated if workers:
1. Confirm voltage is not present and circuits are de-energized by using an ap... | |
12 | 22-25-FL.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-25-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-25-FL Page 1 of 2
Flash 22-25-FL
Supersedes 19-25-FL
Electronic ballast inrush current causing switch failures
Background:
The Electrical Safety Authority (ESA) has become aware of incidents where switch
failures have caused injury when existing switche... | |
13 | 22-25-FL.pdf | 2 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-25-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-25-FL Page 2 of 2
• Verify with ballast manufacturer total inrush current and verify with the switch
manufacturer that the switch will withstand ballasts’ total inrush current
• For 120 V applications, use ballasts that meets NEMA 410 or ANSI standards
c82... | |
14 | 22-37-FL.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-37-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-37-FL Page 1 of 1
Flash 22-37-FL
Supersedes 20-37-FL
Hazards associated with Cleaning Products used with electrical
devices
As businesses and individuals work to keep high touch areas clean and disinfected in
preventing the spread of COVID-19, ESA has... | |
15 | 22-29-FL.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-29-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-29-FL Page 1 of 2
Flash 22-29-FL
Supersedes 19-29-FL
Potential electrical fire hazards when utilizing electric welders to thaw
frozen water pipes
Background:
Cold temperatures can cause water pipes to freeze in buildings. In addition, sustained
cold te... | |
16 | 22-29-FL.pdf | 2 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-29-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-29-FL Page 2 of 2
Flood Safety:
In the event that flooding has occurred due to a burst water pipe or weather conditions
and electrical equipment and wiring has been exposed to ingress of water, proper
evaluation is required to determine whether or not the ... | |
17 | 22-01-FL.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-01-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-01-FL Page 1 of 1
Flash 22-01-FL
Supersedes 19-01-FL
Hazards in electrical rooms put people and property at risk
Live electrical panels left open - cause danger
Electrical Safety Authority (ESA) inspection has identified that many Commercial and
Industr... | |
18 | 22-13-FL.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-13-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-13-FL Page 1 of 2
Flash 22-13-FL
Supersedes 19-13-FL
Student receives burns while operating a key-type lighting switch
Background:
A student received burns to his fingers while turning on a key-operated light switch that
controlled some lighting at a lo... | |
19 | 22-13-FL.pdf | 2 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-13-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-13-FL Page 2 of 2
Recommendations:
1. Individuals should be cautioned about the potential dangers of attempting to
tamper with these switches.
2. Have a Licensed Electrical Contractor inspect existing key type switches for
evidence of tampering and repair... | |
20 | 22-17-FL.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-17-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-17-FL Page 1 of 4
Flash 22-17-FL
Supersedes 19-17-FL
Overhead powerline fatalities
There have been numerous incidents involving overhead powerline contacts, resulting
in death or severe injury. This Flash outlines the typical scenarios that are repeated ... | |
21 | 22-17-FL.pdf | 2 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-17-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-17-FL Page 2 of 4
C. Two fatalities involving contact with energized overhead powerlines. One incident
claimed the life of a young male while seriously injuring another. This incident
occurred when the two victims were erecting the long metal support pole of... | |
22 | 22-17-FL.pdf | 3 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-17-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-17-FL Page 3 of 4
Follow these key safety steps when working near overhead powerlines:
1. Conduct a hazard assessment before starting work; determine the location all
powerlines.
2. If possible, relocate the work so that it is not near the powerline. When... | |
23 | 22-17-FL.pdf | 4 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-17-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-17-FL Page 4 of 4
Remember:
• Always conduct a hazard assessment before beginning work;
• Be aware of the location of powerlines at all times; and
• Take steps to ensure that you and your equipment stay a safe distance from
powerlines, as defined by OHS... | |
24 | 22-09-FL.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-09-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-09-FL Page 1 of 2
Flash 22-09-FL
Supersedes 19-09-FL
Back to school safety tips for University and College students
Each fall, many students will attend University or College in Ontario. For many, this life-
changing experience means moving away. When ren... | |
25 | 22-09-FL.pdf | 2 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-09-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-09-FL Page 2 of 2
• Never use “cheater” plugs – these are used to plug a 3-pronged device into a 2-
pronged outlet and overrides critical safety mechanisms
• Avoid overloading outlets or circuits – this can cause overheating which poses a
potential fire haza... | |
26 | 22-05-FL.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-05-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-05-FL Page 1 of 2
Flash 22-05-FL
Supersedes 19-05-FL
Hazards associated with electrical panels and equipment not located
in electrical rooms
The Accident:
A restaurant supervisor received very serious injuries when attempting to recover a set
of keys t... | |
27 | 22-05-FL.pdf | 2 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-05-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-05-FL Page 2 of 2
equipment, call a qualified person or Licensed Electrical Contractor to safely retrieve
the object. Do not attempt to retrieve by opening any panels, covers or inserting
objects such as wires or wooden objects inside the electrical equipmen... | |
28 | 22-33-FL.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-33-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-33-FL Page 1 of 2
Flash 22-33-FL
Supersedes 19-33-FL
Manual motor controllers used as a disconnecting means
Background:
A worker was electrocuted while performing maintenance on a pump motor. A Manual
Motor Controller (MMC) was involved in the fatality.... | |
29 | 22-33-FL.pdf | 2 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-33-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-33-FL Page 2 of 2
Photo F1 – Manual Motor Controller marked as “Suitable as Motor Disconnect”
Care should be taken to ensure that when the marking is on the enclosure, the device
inside actually meets those requirements.
Some manual mot... | |
30 | 22-21-FL.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-21-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-21-FL Page 1 of 2
Flash 22-21-FL
Supersedes 19-21-FL
Damage to underground conductors during excavation-
customer owned services
The Electrical Safety Authority (ESA) continues to receive reports of incidents where
excavation, directional boring or au... | |
31 | 22-21-FL.pdf | 2 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-21-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-21-FL Page 2 of 2
b) the employer and worker locating and marking the services described in clause
(a) shall ensure that they are accurately located and marked; and
c) if a service may pose a hazard, the service shall be shut off and disconnected.
Privately... | |
32 | 22-19-FL.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-19-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-19-FL Page 1 of 3
Flash 22-19-FL
Supersedes 19-19-FL
Hazards due to misuse of extension cords
The misuse of extension cords has contributed to increasing reports of electrical fires
and fatalities in Ontario.
The Electrical Safety Authority (ESA) war... | |
33 | 22-19-FL.pdf | 2 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-19-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-19-FL Page 2 of 3
1. Will I use the cord indoors or outdoors?
The first step in determining which extension cord you will need is to decide whether
you will be using the appliance indoors or outdoors. Extension cords that can be used
outdoors will be clearl... | |
34 | 22-19-FL.pdf | 3 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-19-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-19-FL Page 3 of 3
3. How far is the nearest outlet from where I'll be working?
To determine what size -- or gauge -- cord you will need, you will also have to determine
how long you need the cord to be. A cord, based on its gauge, can power an appliance
of ... | |
35 | 22-07-FL.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-07-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-07-FL Page 1 of 1
Flash 22-07-FL
Supersedes 19-07FL
Communication grounding hardware and conductors to meterbase
enclosures
Concerns have arisen from Local Distribution Companies in regards to the attachment
of communication grounding hardware and condu... | |
36 | 22-40-FL.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-40-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-40-FL Page 1 of 3
Flash 22-40-FL
Supersedes 21-40-FL
Use of Cord Sets at Trade Shows
Background:
Cord sets are commonly used in trade shows and similar events under the scope of
Section 66 of Ontario Electrical Safety Code (OESC). Rule 66-400 2) requi... | |
37 | 22-40-FL.pdf | 2 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-40-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-40-FL Page 2 of 3
There are two types of approved cord sets:
− for use under carpet within both only, Photo F2; and
− to distribute 120VAC power to multiple booths at trade shows, convention
centers and/or displays. They are NOT for use under carpet, Photo... | |
38 | 22-40-FL.pdf | 3 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-40-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-40-FL Page 3 of 3
Photo F3 - UL 2305 convention center cord set booth stringer type NOT for
use under carpet warning labels (tags)
| |
39 | 22-23-FL.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-23-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-23-FL Page 1 of 3
Flash 22-23-FL
Supersedes 19-23-FL
Installation of communication wiring around electrical equipment
The Electrical Safety Authority (ESA) has noticed an alarming trend in incidents
involving communication installers drilling into, or ma... | |
40 | 22-23-FL.pdf | 2 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-23-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-23-FL Page 2 of 3
Photo F2
Photo F3
Cable installer drilled
a hole from the
inside to the outside
of a building for a
telephone cable and
hit the service
conduit, causing a
significant arc flash.
The service... | |
41 | 22-23-FL.pdf | 3 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-23-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-23-FL Page 3 of 3
Photo F4
The root cause of these incidents is failure to ensure the area is clear and safe for
drilling. These incidents could have been avoided by measuring the inside and outside
of the structure where the intended ho... | |
42 | 22-31-FL.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-31-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-31-FL Page 1 of 1
Flash 22-31-FL
Supersedes 19-31-FL
Electrician Suffers Serious Burns from Arc Flash
What happened
An arc flash event occurred on January 2017 when an electrician was installing a cable
into an energized panel in the Ottawa area. The el... | |
43 | 22-10-FL.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-10-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-10-FL Page 1 of 1
Flash 22-10-FL
Supersedes 19-10-FL
Death of a 14-year-old boy from electrocution
A 14-year-old died July 20, 1998, after he was electrocuted while operating a personal
computer at his home.
The computer, which had a three-pin plug, wa... | |
44 | 22-02-FL.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-02-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-02-FL Page 1 of 1
Flash 22-02-FL
Supersedes 19-02-FL
Dangers associated with gasoline spraying and incandescent
extension handlamps (incandescent trouble light)
The Electrical Safety Authority (ESA), together with CSA International and the Office of
the... | |
45 | 22-34-FL.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-34-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-34-FL Page 1 of 3
Flash 22-34-FL
Supersedes 21-34-FL
Electrical Safety Authority Warns of Unsafe Use of Electrical
Equipment to Assemble Lichtenberg Generators
Hobbyists using high voltage to pattern wood, other materials has
resulted in multiple seriou... | |
46 | 22-34-FL.pdf | 2 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-34-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-34-FL Page 2 of 3
Physiological effects of exposure to high voltage / high frequency
energy sources
Lack of quality control processes and procedures
Inadequate instructions pertaining to usage, storage, maintenance,
required type(s) of personal prote... | |
47 | 22-34-FL.pdf | 3 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-34-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-34-FL Page 3 of 3
• The combination of incorrect and/or unsuitable parts, dangerous assembly
methods, and use of the finished product are considered to be major contributing
factors resulting in the reported serious injury and fatality.
How to Report Unsafe... | |
48 | 22-26-FL.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-26-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-26-FL Page 1 of 2
Flash 22-26-FL
Supersedes 20-26-FL
Potential electrical hazards associated with the replacement of
metallic water meters or water supply lines
Caution:
Workers who undertake the replacement of a metallic water meter or metallic water
... | |
49 | 22-26-FL.pdf | 2 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-26-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-26-FL Page 2 of 2
Recommendation:
ESA recommends contacting a Licensed Electrical Contractor (LEC) to assess the
condition of the existing electrical system including the neutral and grounding electrode
connections. In some cases, arcing may be indicative ... | |
50 | 22-38-FL.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-38-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-38-FL Page 1 of 1
Flash 22-38-FL
Supersedes 20-38-FL
Electrical Safety Authority Warns of stockpiling material near
transformer station fences and/or under overhead powerlines
The Electrical Safety Authority (ESA) is reminding members of the public, cons... | |
51 | 22-12-FL.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-12-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-12-FL Page 1 of 1
Flash 22-12-FL
Supersedes 19-12-FL
Unapproved electrical animal stunners
Background:
A fatality occurred in Ontario due to the use of an unapproved electrical animal stunner.
Electrical animal stunners use bare metal parts, energized a... | |
52 | 22-24-FL.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-24-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-24-FL Page 1 of 2
Flash 22-24-FL
Supersedes 19-24-FL
Polarity identification for photovoltaic dc system conductors
Background:
ESA has been involved in several fire investigations that resulted when polarity of PV
(dc) source and/or output circuit wirin... | |
53 | 22-24-FL.pdf | 2 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-24-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-24-FL Page 2 of 2
Diagram F1 – Reversed polarity of dc sources
Direction:
The Ontario Electrical Safety Code (OESC) Rule 64-212 requires dc Photovoltaic circuit
conductors to be coloured or coded to identify polarity, see Photo F2.
Photo F2 – Example of... | |
54 | 22-28-FL.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-28-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-28-FL Page 1 of 4
Flash 22-28-FL
Supersedes 19-28-FL
Replacement of existing kitchen counter split receptacle with Ground
Fault Circuit Interrupter (GFCI) type receptacle
Background:
Questions have been asked about the replacement of split receptacles l... | |
55 | 22-28-FL.pdf | 2 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-28-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-28-FL Page 2 of 4
Figure F1 – Typical installation-two 5-15R Split Receptacles connected to a three
wire branch circuit
2. For installations where an existing three wire branch circuit feeds a
single 5-15R split receptacle (Figure F2):
In addition to r... | |
56 | 22-28-FL.pdf | 3 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-28-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-28-FL Page 3 of 4
Figure F2 – Typical installation single Split Receptacle connected to three wire
branch circuit
Figure F3 – GFCI Replacement Method
| |
57 | 22-28-FL.pdf | 4 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-28-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-28-FL Page 4 of 4
Electrical wiring is complicated and can present safety hazards if not properly installed
and maintained.
When planning to do electrical work, think about the risks associated with unsafe
electrical installations. Contact a Licensed Ele... | |
58 | 22-36-FL.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-36-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-36-FL Page 1 of 2
Flash 22-36-FL
Supersedes 19-36-FL
Electrical Safety Authority Warns of Potential Shock Hazard
Associated with the incorrect installation of In-line Fuse Holders
The Electrical Safety Authority (ESA) is warning end users and contractors... | |
59 | 22-36-FL.pdf | 2 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-36-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-36-FL Page 2 of 2
Example of energized Fuse due to it remaining on the line side of fuse holder
when halves are opened
Correctly Assembled Fuse Holder
Energized (Live) Fuse
Line
Load
When properly mated, the seam be... | |
60 | 22-32-FL.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-32-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-32-FL Page 1 of 2
Flash 22-32-FL
Supersedes 19-32-FL
The Office of the Fire Marshal and Emergency Management and the
Electrical Safety Authority warn of safety issues associated with
electric saunas
The Ontario Office of Fire Marshal and Emergency Manag... | |
61 | 22-32-FL.pdf | 2 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-32-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-32-FL Page 2 of 2
Requirements of the OESC:
• Rule 62-112 requires that heating devices are to be installed so that any adjacent
combustible materials are not subjected to temperatures in excess of 90° C.
• Rule 62-202 requires each enclosed area within wh... | |
62 | 22-20-FL.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-20-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-20-FL Page 1 of 3
Flash 22-20-FL
Supersedes 19-20-FL
Electric In-Floor Heating System Installations
Ontario’s Electrical Safety Authority (ESA) warns the public that improperly installed
electric floor heating systems may pose a fire, burn, or electric s... | |
63 | 22-20-FL.pdf | 2 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-20-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-20-FL Page 2 of 3
Picture 1: Dual Voltage Thermostat Picture 2: 120 V Rated Floor Matt Label
Installers should also refer to the manufacturer’s instructions, as in-floor heating may
not be intended to be utilized without the in-floor sensor installed ... | |
64 | 22-20-FL.pdf | 3 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-20-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-20-FL Page 3 of 3
All equipment must bear a recognized Canadian Electrical approval mark (CSA or
equivalent). See https://esasafe.com/electrical-products/recognized-certification-marks/
for a complete list of acceptable approval marks for equipment.
Does th... | |
65 | 22-08-FL.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-08-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-08-FL Page 1 of 4
Flash 22-08-FL
Supersedes 19-08-FL
Electrical hazards found at sports fields
The Electrical Safety Authority (ESA) has found numerous electrical hazards at sports
fields throughout Ontario. The hazards are related to installation and ma... | |
66 | 22-08-FL.pdf | 2 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-08-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-08-FL Page 2 of 4
finished grade having CSA configuration 5-15R or 5-20R shall be protected with a
Ground Fault Circuit Interrupter of the Class A type. GFCI’s should be tested monthly, in
order to minimize the potential hazards where the public are exposed ... | |
67 | 22-08-FL.pdf | 3 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-08-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-08-FL Page 3 of 4
Photo F2 – Improperly protected conduit (Damaged)
Specific electrical panel and enclosure issues identified:
• Electrical panels rusting.
• Electrical panels with unused openings as a result of missing panel fillers which
exposes the l... | |
68 | 22-08-FL.pdf | 4 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-08-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-08-FL Page 4 of 4
Sports Field Maintenance Considerations:
Once deterioration or damage is identified, repairs should be made immediately. When
making repairs, the requirements of the current revision of the OESC should be
considered. When it is necessary ... | |
69 | 22-16-FL.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-16-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-16-FL Page 1 of 4
Flash 22-16-FL
Supersedes 19-16-FL
Knob and tube wiring in residential installations
Issues with knob and tube wiring:
Since January 2003, the Electrical Safety Authority (ESA) has received an increasing
number of questions about the s... | |
70 | 22-16-FL.pdf | 2 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-16-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-16-FL Page 2 of 4
• They are protected by a 15 A fuse or circuit breaker; and
• No additional outlets have been added to the original installation, so as to
overload the circuit; and
• The conductors, where visible, appear to be in good condition.
If you... | |
71 | 22-16-FL.pdf | 3 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-16-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-16-FL Page 3 of 4
Receptacles in existing knob and tube installations:
Where grounding type receptacles (three pin) are installed in existing knob and tube
installations to replace the ungrounded type (two pin) receptacles, special caution must
be exercise... | |
72 | 22-16-FL.pdf | 4 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-16-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-16-FL Page 4 of 4
• Kitchen receptacles within 1 m of a sink shall be GFCI protected;
• New outlets shall follow the current OESC requirements for wiring, meaning a
new branch circuit shall be grounded and receptacles that utilize the three pin
grounded con... | |
73 | 22-04-FL.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-04-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-04-FL Page 1 of 1
Flash 22-04-FL
Supersedes 19-04-FL
Licensed Electrical Contractor narrowly escapes serious injury
While installing metering conductors in a 4160 V switchgear, a Licensed Electrical
Contractor (LEC) came into contact with the terminal of... | |
74 | 22-22-FL.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-22-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-22-FL Page 1 of 2
Flash 22-22-FL
Supersedes 19-22-FL
Electrical Shock Hazards associated with older fuse panels
Electrical installation methods, codes and product standards have evolved significantly
over the past 100 years in Ontario and across North Am... | |
75 | 22-22-FL.pdf | 2 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-22-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-22-FL Page 2 of 2
Due to the potential shock hazard associated with these open type panels in residential
dwellings, the Electrical Safety Authority (ESA) will be mandating the following when the
dwellings are Rental/Tenant occupied (not owner occupied):
• ... | |
76 | 22-41-FL.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-41-FL.pdf | FLASH
September 2022
©Electrical Safety Authority Flash 22-41-FL Page 1 of 1
Flash 22-41-FL
Hazards Associated with Branch Circuit Overloading due to Portable Air
Conditioning units
Background: Photo F1 - Example of Portable AC
Portable Air Conditioning (AC) units (example ... | |
77 | 22-30-FL.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-30-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-30-FL Page 1 of 5
Flash 22-30-FL
Supersedes 19-30-FL
Aluminum wiring in residential installations
Issues with aluminum wiring
The Electrical Safety Authority (ESA) has received an increasing number of questions
about the safety of aluminum wiring. In pa... | |
78 | 22-30-FL.pdf | 2 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-30-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-30-FL Page 2 of 5
cover plates or discolouration of switches or receptacles, signs of arcing within switches
or receptacles as per photo F1, flickering lights, or the smell of hot plastic insulation may
be evidence of these problems.
Photo F1 – Failure of... | |
79 | 22-30-FL.pdf | 3 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-30-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-30-FL Page 3 of 5
Required markings for devices used with aluminum wiring
Replacement receptacles and switches shall be installed in compliance with the OESC
and marked as per Table F1.
Table F1 – Required markings for devices used with aluminum wiring
E... | |
80 | 22-30-FL.pdf | 4 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-30-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-30-FL Page 4 of 5
around the screw into three-fourths of a complete loop and only one conductor shall be
connected to any one screw.
Devices with “push-in” terminations shall not be used with aluminum conductors.
An alternative to using copper/ aluminum... | |
81 | 22-30-FL.pdf | 5 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-30-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-30-FL Page 5 of 5
an example of a failure when non-petroleum based inhibitor was used for copper to
aluminum connections. The “Oxide Inhibiting compound” and connector manufacturers’
shall be consulted to ensure the compound used is appropriate for the appli... | |
82 | 22-06-FL.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-06-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-06-FL Page 1 of 1
Flash 22-06-FL
Supersedes 19-06-FL
Fire investigation into high-rise apartment fire
In the fall of 2004, the Electrical Safety Authority (ESA) was asked to assist the Office of the Fire
Marshal (OFM) with an electrical fire investigatio... | |
83 | 22-18-FL.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-18-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-18-FL Page 1 of 2
Flash 22-18-FL
Supersedes 19-18-FL
Residential fires linked to electrical wiring and equipment
Based on the 2020 Ontario Electrical Safety Report (OESR), developed by the Electrical
Safety Authority (ESA), a significant number of reside... | |
84 | 22-18-FL.pdf | 2 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-18-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-18-FL Page 2 of 2
Persons operating an electrical contracting business are required to be licensed by
ESA. Homeowners should retain the services of a LEC to ensure their electrical
installations are done correctly and safely. Please refer to this link to kno... | |
85 | 22-14-FL.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-14-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-14-FL Page 1 of 2
Flash 22-14-FL
Supersedes 19-14-FL
Delta to Wye system conversions
Caution should be exercised when converting Delta systems to Wye.
You must ensure that all unintentional grounds are removed before the system is
converted.
Hazard:
... | |
86 | 22-14-FL.pdf | 2 | tradeloom_data/ElectricalDataSourcesClean/ESA Flash Notices/22-14-FL.pdf | FLASH
May 2022
©Electrical Safety Authority Flash 22-14-FL Page 2 of 2
on the same system. ALL FAULTS MUST BE CLEARED BEFORE
CONVERSION IS ATTEMPTED.
3. It is important that a “Grounded Circuit Conductor” (or neutral) be brought into the
building, grounded as per Rule 10-210 and bonded as per Rule 10-604 whet... | |
87 | CEC-2024.pdf | 1 | tradeloom_data/ElectricalDataSourcesClean/CEC and Ontario Amendments/CEC-2024.pdf | Canadian Electrical Code, Part I
Safety Standard for Electrical Installations
2024
26th Edition
CSA C22.1:24
| |
88 | CEC-2024.pdf | 2 | tradeloom_data/ElectricalDataSourcesClean/CEC and Ontario Amendments/CEC-2024.pdf | Legal
Notice for Standards Canadian
Standards Association (operating as “CSA Group”) develops st andards through a consensus st andards development pro cess appr oved by
the Standards Council of Canada. This process brings together volunteer s representing varied viewpoints and interes ts to achieve consensus and
d... | |
89 | CEC-2024.pdf | 3 | tradeloom_data/ElectricalDataSourcesClean/CEC and Ontario Amendments/CEC-2024.pdf | 2024 Canadian Electrical Code
and related products
In addition to CSA C22.1:24, Canadian Electrical
Code, Part I, CSA Group offers a variety of related
publications and resources designed to assist
with the interpretation and application of the
Code. Our facilitated training can be available in
both virtual and ... | |
90 | CEC-2024.pdf | 4 | tradeloom_data/ElectricalDataSourcesClean/CEC and Ontario Amendments/CEC-2024.pdf | Standards
Update Service
CSA C22.1:24
March 2024 Title:
Canadian Electrical Code, Part I To
regist er for e-mail notification about any updat es to this publication
• go to www .csagr oup.org/store/
• click on CSA Updat e Service
The List ID that you will need to regist er for updat es to this publication is 242... | |
91 | CEC-2024.pdf | 5 | tradeloom_data/ElectricalDataSourcesClean/CEC and Ontario Amendments/CEC-2024.pdf | Canadian
Standards Association (operating as “CSA Group”) , under whose
auspices this National Standard has been produced, was chartered
in 1919 and accredit ed by the Standards Council of Canada
to the National Standards sys te m in 1973. It is a not -for - pro
fit, nonstatu tory , voluntary membersh ip associati... | |
92 | CEC-2024.pdf | 6 | tradeloom_data/ElectricalDataSourcesClean/CEC and Ontario Amendments/CEC-2024.pdf | National
Standard of Canada
CSA C22.1:24
Canadian Electrical Code, Part I
• The Canadian Electrical Code, Part I, is a voluntary code for adoption and enforcement by
regulatory authorities.
• The Canadian Electrical Code, Part I, meets the fundamental safety principles of International
Standard IEC 60364-1, Low-v... | |
93 | CEC-2024.pdf | 7 | tradeloom_data/ElectricalDataSourcesClean/CEC and Ontario Amendments/CEC-2024.pdf | CSA
C22.1:24 Canadian
Electrical Code, Part I March
2024 © 2024 Canadian Standards Association 1 Contents
Committ
ee on Canadian Electrical Code, Part I 9
Regulatory Authority Commit tee 12
Executive Commit tee 13
National Building Code/Canadian Electrical Code Liaison Committ ee 13
Section Subcommit tee s 13
Prefa... | |
94 | CEC-2024.pdf | 8 | tradeloom_data/ElectricalDataSourcesClean/CEC and Ontario Amendments/CEC-2024.pdf | CSA
C22.1:24 Canadian
Electrical Code, Part I March
2024 © 2024 Canadian Standards Association 2 Equipment
bonding 104
Equipot ential bonding 106
Section 12 — Wiring methods 108
Scope 108
General requirements 108
Conductor s 111
General 111
Open wiring 114
Exposed wiring on ext eriors of buildings and between build... | |
95 | CEC-2024.pdf | 9 | tradeloom_data/ElectricalDataSourcesClean/CEC and Ontario Amendments/CEC-2024.pdf | CSA
C22.1:24 Canadian
Electrical Code, Part I March
2024 © 2024 Canadian Standards Association 3 Class
1 circuits 166
Class 2 circuits 168
Class 2 power and data communication circuits 171
Section 18 — Hazardous locations 173
Scope and intr oduction 173
General 176
Explosive gas atmospheres 180
Ins tallations in Zo... | |
96 | CEC-2024.pdf | 10 | tradeloom_data/ElectricalDataSourcesClean/CEC and Ontario Amendments/CEC-2024.pdf | CSA
C22.1:24 Canadian
Electrical Code, Part I March
2024 © 2024 Canadian Standards Association 4 Lightning
arres ter s 220
Low -voltage surge prot ective devices 221
Resist ance devices 221
Panelboards 222
Branch circuits 222
Receptacles 224
Receptacles for residential occupancies 226
Electric heating and cooking a... | |
97 | CEC-2024.pdf | 11 | tradeloom_data/ElectricalDataSourcesClean/CEC and Ontario Amendments/CEC-2024.pdf | CSA
C22.1:24 Canadian
Electrical Code, Part I March
2024 © 2024 Canadian Standards Association 5
Gr
ounding and bonding 269
High-voltage couplers 273
Section 38 — Elevator s, dumbwait er s, mate rial lifts, escalator s, moving walks, lifts for persons with physical
disabilities, and similar equipment 274
Elevators... | |
98 | CEC-2024.pdf | 12 | tradeloom_data/ElectricalDataSourcesClean/CEC and Ontario Amendments/CEC-2024.pdf | CSA
C22.1:24 Canadian
Electrical Code, Part I March
2024 © 2024 Canadian Standards Association 6 Section
58 — Passenger ropewa ys and similar equipment 308
Scope 308
General 308
General requirements 308
Conductor s 309
Wiring methods 309
Pr otection and contr ol 310
Branch circuits 311
Regenerative power 311
Gr oun... | |
99 | CEC-2024.pdf | 13 | tradeloom_data/ElectricalDataSourcesClean/CEC and Ontario Amendments/CEC-2024.pdf | CSA
C22.1:24 Canadian
Electrical Code, Part I March
2024 © 2024 Canadian Standards Association 7 Section
68 — Pools, tubs, and spas 364
Scope 364
General 364
Permanently ins talled swimming pools 368
Storable swimming pools 369
Hydrom assage bathtubs 369
Spas and hot tubs 369
Section 70 — Electrical requirements fo... |
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