Canadian Electrical Industry News Week

 ground circutBy William Burr

Since ground fault circuit protection was adopted in Canada over 40 years ago, the number of people dying annually from electrocution has been steadily reduced from over 800 to less than 200, and much electrical equipment and other infrastructure has been saved from damage (source: Electrical Safety Foundation International ESFI). The following overview outlines how ground fault detection and protection ensures the safety of personnel and equipment.

 

The Canadian Electrical Code* defines a “ground” as a connection to earth obtained by a grounding electrode, and a “ground fault” as an unintended electrical path between a part, operating at some potential to ground, and ground. The code requires ground fault current to be detected, and in most cases requires electrical equipment to be protected from a ground fault by interrupting the undesirable fault current.

A ground fault circuit interrupter (GFCI) breaks the fault current. The GFCI is designed to open the circuit, or a portion of the circuit to a load, within a predetermined value. This value must be less than the current level required to operate the overcurrent protective device of the circuit.

 Where the GFCI is required to provide protection for personnel, the level must be above 4 milliamperes but not more than 6 milliamperes and must operate within a time-frame of less than 25 milliseconds. This is defined as a “Class A ground fault circuit interrupter” (Class A GFCI). It is also designed to open the circuit to the load if the neutral conductor is inadvertently grounded between the interrupter and the load. Note that the function of the Class A GFCI is to provide protection against hazardous electric shocks from leakage current flowing to ground. It does not provide protection against shock if a person makes contact with two of the circuit conductors on the load side of the GFCI.

 Where the GFCI is for the protection of equipment only, the current interrupting level is set at a level high enough to protect the equipment from damage, but less than the level required to operate the overcurrent device protecting the circuit. In some instances, where equipment must run continuously, and there is minimal hazard to personnel, a “ground fault detector” may be used. This device detects a ground fault and provides an indication or alarm, that a ground fault has been detected. It does not necessarily control or interrupt the ground fault and so is not considered ground fault protection. It does alert qualified maintenance staff to investigate and correct the fault. These devices are mostly used for poly-phase ungrounded systems, neutral grounding devices, and industrial machinery.

 The most widespread use of the Class A GFCI is for receptacles located near water or the earth. The Canadian Electrical Code requires that a Class A GFCI be provided to protect all receptacles within 1.5 metres of a sink. In addition, in residential occupancies the code requires that all receptacles installed outdoors and within 2.5 metres of finished grade be protected by a Class A GFCI. An exception is automobile heater receptacles that have been installed as per the provision of Rule 8-400 of the code for parking stalls in parking lots.

 In the case of swimming pools, which includes hydro massage bathtubs, spas and hot tubs, wading pools, baptismal pools, decorative pools, and splash pads, all receptacles located between 1.5 metres and 3 metres of the inside walls of the pool and receptacles located in change rooms associated with a pool must be protected with a Class A GFCI. All electrical equipment located within the confines of the pool or within 3 metres of the walls, spas and hot tubs, and audio amplifiers connected to speakers in the pool water must also be protected with a Class A GFCI. Where a Class A GFCI is not available, due to rating, the equipment may be protected with a GFCI that will clear a fault within the time and current values of a Class A GFCI.

Solidly grounded systems rated more than 150 volts to ground, less than 750 volts phase to phase and 1000 amps or more; and rated 150 volts or less to ground and 2000 amperes or more, are required to have ground fault protection that de-energizes all normally ungrounded conductors of a faulted circuit that are downstream from the main disconnect. This ground fault protection can be incorporated in the over current device, a separate tripping system consisting of sensors, relays and auxiliary tripping mechanism or other means that will provide the necessary protection.

 For more comprehensive information, refer to the Canadian Electrical Code, Part I.

* References to the Canadian Electrical Code or the Code are to the Canadian Electrical Code, Part I, Twenty-second edition, published by the Canadian Standards Association

 William (Bill) Burr is the former Chair of the Canadian Advisory Council on Electrical Safety (CACES), former Director of Electrical and Elevator Safety for the Province of BC, and former Director of Electrical and Gas Standards Development and former Director of Conformity Assessment at CSA Group. Bill can be reached at Burr and Associates Consulting billburr@gmail.com.

 


      Salex Welcomes New Partner: Senso by Lumini                    

LDS Salex Spotlight 400Salex is pleased to announce a new partnership with Senso by Luminii – a Canadian manufacturer of locally made LED fixtures. As of August 6, Salex will represent their lighting products in the Southwestern Ontario region.

With every product, Senso Lighting pursues a vision of providing flexible and environmentally conscious lighting solutions to upgrade the typical fluorescent office. For over ten years, the Canadian manufacturer has specialized in LED technology and embarks on a mission to illuminate commercial spaces with custom solutions that are beautiful, economical and sustainable.


READ MORE


 

Changing Scene

  • Prev
InfraCanada / InfraQuebec is an annual series of user group meetings across Canada for FLIR and ITC ...
IDEAL has a long history of offering collectible toy trucks, which have always been a popular item ...
In celebration of National Women’s History Month, the Canadian Apprenticeship Forum (CAFFCA) is ...
Hubbell Canada manufacturer of Electrical and Lighting products announces a significant step ...
Join ESA on Zoom for their first webinar of the fall, Electrically Safe Work ...
Being able to quickly adjust to the unexpected is a big part of any construction project, but solar ...
Rob McKinney will present on "The Eight Steps to Digitize Construction Workflow" during this ...
CE Pro announced the winners of the 2020 CE Pro BEST (Best Electronics Systems Technologies) ...
Nexans Canada has launched a service providing cable reel tracking via connected devices. The ...
The Manitoba government has expanded its Back to Work in Manitoba Wage Subsidy Program as part ...


#IDEALTruckinIDEAL has a long history of offering collectible toy trucks, which have always been a popular item with electricians and contractors, So they are very excited to announce our 2020 promotion, Keep on Truckin’ with IDEAL.

This fall, participating distributors will receive two 1:24 scale, diecast Dodge RAM® 1500 pickup trucks, complete with IDEAL branding, to raffle to their customers. The toy trucks will also be available as a premium to end-users who make a qualifying purchase of a barrel of Can-Twist™ Wire Connectors during the promo period.

 

Read More


 

Connected Drum Internet of Things Nexans Canada has launched a service providing cable reel tracking via connected devices. The “Connected Drum” Internet of Things (IoT) service allows customers to benefit from real-time location, theft and loss detection and management of residual cable lengths on reels. 

By tracking and monitoring a fleet of cable reels that are off-site or at subcontractor locations, significant savings can be realized. The service includes an online and mobile software platform for efficient and convenient management. This innovation provides customers with the real-time location of each reel as well as an alert system for monitoring on-site events including deliveries and pick-ups.

Read More


 

 

ManitobaThe Manitoba government has expanded its Back to Work in Manitoba Wage Subsidy Program as part of its continued commitment to safely restarting the provincial economy.

“The Back to Work wage subsidy is benefiting hundreds of Manitoba businesses that are bringing back employees who were laid off during the COVID-19 pandemic, and hiring more staff to boost their operations and provide valued services to Manitobans,” said Manitoba Premier Brian Pallister. “Manitoba has designed some of Canada’s strongest support programs to help relieve small businesses of unexpected financial burdens...

Read More


 



Terry BeckerBy Terry Becker

We are quickly approaching January 2021 and publication of the 5th edition of the CSA Z462 Workplace electrical safety Standard. This is good news for Canada as we continue to evolve in our identification and management of the electrical hazards of arc flash and shock.

But as I have quoted in the past, we need to ensure we are getting it right, and there is still a lot of work to be done. Most of the focus has been on arc flash and I am concerned that the electric shock hazard has been neglected.

Read More


 

Product News

  • Prev
Avoid the trouble caused from tripped circuit breakers with Eaton's Energy Management System (EMS), ...
FLIR Systems, Inc. (NASDAQ: FLIR) today announced four new additions to its Exx-Series of advanced ...
Provides extra depth to Type 1 screw cover junction boxes - for use with CS, CSG, CSKO, CSKOG ...
Leviton has a new line of LEV Series IEC 60309-1 and IEC 60309-2 Pin & Sleeve devices with ...
Discover the new compact MV Switchgear featuring SF6-free Shielded Solid Insulation (2SIS) and ...
Dual voltage panel consists of back side panel equipped with 480/600 VAC breakers and Plug & ...
FLIR Systems, Inc. recently announced four new additions to its Exx-Series of advanced thermal ...
LanXPLORER Pro is a tester for analyzing and diagnosing problems in networks, cabling, and ...
Skilled labor shortages and compressed project timelines can be tough on contractors. Vive ...
Stanpro’s new I series of industrial remotes are ideal for applications requiring maximum ...


 

Mersen IsoMAXXMersen is pleased to introduce its high performance IsoMAXX Vacuum Brazed Cold Plates. This patented design is the optimum cooling solution for latest generation PrimePACK IGBTs. IsoMAXX represents a super compact cooling solution providing unsurpassed cooling performance with a high degree of thermal homogeneity on chip-to-chip and module-to-module configurations.

As market needs for more efficient electrical power conversion designs grow, so do the technological advancements from power electronic module manufacturers. The new generation of PrimePACK IGBT modules now boast an increased power dissipation compared to previous generations. 

Read More


 

Betacalo Soft SQThe optimally engineered diffuser throws the light downwards exactly where it is required, while creating a subtle indirect glow on the ceiling. Ideally suited for atriums, lobbies, boardrooms and reception areas.

Body: Aluminum and steel.

Diffuser: Opal acrylic.

Drivers: HPF electronic for 120-277V (EU-240V)

Remote mounting of drivers: Wire Size (max distance from canopy to drivers) 18 AWG - 9.5' (2.9m), 16 AWG - 19.5' (5.9m), 14 AWG - 29.5' (9m). Drivers must be accessible after installation.  

Read More


 

Peers & Profiles

  • Prev
For more than a century, ABB has been investing in Canadian technologies and products to support ...
Mackenzie Gillan, a bright young lady from Baysville, Ontario, tells us about how she learned ...
Energy Efficient Lighting is a LED lighting manufacturer with nearly 30 years of industry ...
Dee Durant is an industrial electrician apprentice attending Conestoga College and an Ambassador ...
ECAO recently launched a new program called Future Leaders Advisory Council (FLAC). Their inaugural ...
At 14, Tom Miguel was sitting in the counselor’s office of Silverthorn Collegiate Institute in ...
Meredith Halfpenny is a Wind Site Technician with Boralex where she inspects, maintains, and ...
Rutul Bhavsar is a final year Electrical Engineering student at Mohawk College. He recently ...
Shannon Tymosko is a first-year apprentice with IBEW (International Brotherhood of Electrical ...
ELG Electric is an electrical contractor based out of Goderich, Ontario serving the area’s ...

Dee DurantDee Durant is an industrial electrician apprentice attending Conestoga College and an Ambassador for Kick Ass Careers. As an ambassador for KickAss Careers she spent time shadowing mentor and KickAss founder Jamie McMillan attending events for the organization.

The advancement of women in male dominated industries is an important endeavor for Durant, inspired by her mother, who was the first woman on the Brantford Police department. In EIN's interview with Durant, she discussed the future of electrical work, and how the ongoing pandemic is affecting our country’s students.

Read More


 

EE LightingBy Blake Marchand

Energy Efficient Lighting is a LED lighting manufacturer with nearly 30 years of industry experience. One that was founded on principles of environmental sustainability and responsibility to future generations. Based out of Markham, Ontario, they offer complete lighting solutions for commercial and industrial applications.

Their product lines include conventional lighting fixtures, LED retrofit kits, complete LED luminaires, LED systems, drivers and electronic ballasts. 

 

Read More


 

Copper $US Dollar price per pound

Kerrwil Publications Great Place to Work. Certified December 2019 - December 2020

538 Elizabeth Street, Midland,Ontario, Canada L4R2A3 +1 705 527 7666
©2020 All rights reserved

Use of this Site constitutes acceptance of our Privacy Policy (effective 1.1.2016)
The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of Kerrwil