Canadian Electrical Industry News Week

 

Electrical GroundingWilliam (Bill) Burr

The CE Code is a comprehensive document. Sometimes it can seem quite daunting to quickly find the information you need. This series of articles provides a guide to help users find their way through this critical document. In this article: Section 10 — Grounding and bonding.

Section 10 — Grounding and bonding

Section 10 is a general section of the Code and applies to all installations unless amended by other Sections of the Code. It's Scope outlines requirements for:

• grounding of electrical systems and service equipment
• bonding of non-current-carrying metal parts of equipment and conductor enclosures, together and to ground
• the use of ungrounded systems and neutral grounding devices

Special terminology used in this section and found throughout the code include bonding, bonding conductor, ground, ground fault, ground fault detection, ground fault protection, grounded, grounding, grounding conductor, grounding electrode, and grounding system.

These are all thoroughly defined in Section 0. In general terms, bonding refers to a low impedance permanent connection of all non-current-carrying metal parts together, and grounding refers to a permanent low impedance connection to the earth.

The stated object of Section 10 is to provide rules for

• bonding metal parts and systems together and to the grounded system conductor to reduce the danger of electric shock and property damage, providing a low impedance path for fault current back to the source, and establishing an equipotential plane to minimize potential difference between non-current carrying metal parts

• grounding the electrical system and bonding of non-current carrying metal parts to earth to minimize any potential difference to earth

• using an ungrounded system or a neutral grounding device in the system to provide alternates to a solidly grounded system, and minimizing any damage from a single fault by limiting the magnitude of the fault current.

System and circuit grounding rules 10-102 to 10-116 provide guidance on when and where, as well as exceptions to, grounding specific two-wire dc systems, three-wire DC systems, AC systems, electric arc furnaces, electric crane circuits, isolated circuits, circuits of less than 50V, and instrument transformer circuits.

Once you have determined your specific grounding needs, Grounding connections for systems and circuits rules 10-200 to 10-212 provide specific detailed guidance on how to ground various systems. Appendix B also contains some helpful diagrams.

Conductor enclosure bonding rules 10-300 to 10-304 are guidelines for when and where to bond metal enclosures for service conductors, underground service conductors, as well as enclosures for other than service conductors.

Equipment bonding rules 10-400 to 10-414 provide the varying requirements for when and where to bond all metal non-current carrying parts of fixed equipment general, fixed equipment, specific, non-electrical equipment, portable equipment, instrument transformer cases, cases of instruments, meters, and relays-operating voltage 750v or less, cases of instruments, meters, and relays-operating voltage over 750V, as well as non-metallic wiring systems.

The Bonding methods rules 10-600 to 10-626 will guide you through the steps needed to ensure an effective continuous, low-impedance bonding connection when Bonding service equipment, Metal armour or tape of service cable, Bonding at other than service equipment, Loosely jointed metal raceways, bonding jumpers, short sections of raceway, fixed equipment, portable equipment, pendant equipment, bonding equipment to the grounded system conductor (bonding to ground), and electrolytic-type water heaters. Helpful suggestions are also contained in the Appendix B notes.

Rule 10-700 Grounding electrodes sets out the requirements for establishing a grounding connection through the use of electrodes. There are specific rules for various grounding electrodes including manufactured grounding electrodes (both rod electrodes and plate electrodes), field-assembled ground electrodes, and in-situ grounding electrodes forming part of the existing infrastructure. Rule 10-702 sets out spacing and interconnection requirements for grounding electrodes where more than one grounding electrode exists at the building including those electrodes used for signal circuits, radio, lightning protection, communication, community antenna distribution systems, and any other purpose. Rules 10-704 and 10-706 deal with railway track electrodes and the use of lightning rod system conductors and grounding electrodes.


Rules 10-800 to 10-820 are rules governing continuity, material selection, sizing, and installation of grounding and bonding conductors. The size of a grounding conductor is determined by the type of system, either AC or DC. The size of a bonding conductor as determined by Table 16A or 16B depends on the size of the associated circuit conductor (Table 16A) or on the size of the associated bus-bar (Table 16B).

Once you have installed the correct type and size of bonding and grounding conductor, pay close attention to the connection of these conductors as specified in rules 10-900 to 10-906 Grounding and bonding conductor connections. The continuity and safety of a low-impedance path to reduce the danger of electric shock and property damage, and providing a low impedance path for fault current back to the source, depends on adequate and sound connections.

The final two subjects of Section 10 deal with grounding and bonding of lightning arresters and the installation of neutral grounding devices.

In the next installment we will be discussing Section 12 — Wiring methods.

Read the rest of the instalments in the series:
Part 1: Guide to the CE Code, Part I – A Roadmap (Installment 1 in a Series)
Part 2:
A Road Map to the CE Code, Part I – Installment 2
Part 3: Guide to the Canadian Electrical Code, Part I – Installment 3
Part 4: A Road Map to the CE Code, Part 1 – Installment 4
Part 5: Guide to the Canadian Electrical Code, Part I — Installment 5
Part 6: Guide to the Canadian Electrical Code, Part I — Installment 6
Part 7: Guide to the Canadian Electrical Code, Part I — Installment 7
Part 8: Guide to the Canadian Electrical Code, Part I — Installment 8
Part 9:
Guide to the Canadian Electrical Code, Part I — Installment 9
Part 10: Guide to the Canadian Electrical Code, Part 1 - Installment 10
Part 11: Guide to the Canadian Electrical Code, Part 1 - Installment 11


 

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.

 

Changing Scene

  • Prev
This ECAA Annual Training Day & AGM hybrid event will take place May 27th – May 29th. ...
Technical Safety BC has reviewed the 2021 Canadian Electrical Code (CE Code) to assess the impacts ...
The Government of Canada is providing close to $5 million, over five years, to the National ...
Applications are now open online for the Increased Employment Incentive (IEI), which ...
As a non-profit organization, Skills Ontario relies on the support of partners to continue ...
Ideal Supply is proud to announce that as of January 1, 2021 they have appointed a new Sales ...
The energy storage ecosystem and the regulatory environment in which it operates are evolving ...
It's April, which means it's time for you to ignite your competitive spark with the a new challenge ...
MP Scott Duvall has introduced an amendment to the Income Tax Act regarding travel expenses for ...
George Brown College has partnered with Hilti (Canada) Corporation to help women build rewarding ...


 

www.liteline.com

 

 

 

 


 

Canadian Electrical Contractor Discussion Group: Can You Count the Deficiencies?

EIN CECD 400Have you ever been called to fix the work of a 'handyman'?

"Was supposedly done by a"certified ' electrician....told the homeowner that he got a $266 permit....no record at TSBC. Can you count the deficiencies?"

"There is a second panel change in the triplex also.......even more deficiencies. Think the guy was a glorified handyman. Ones not obvious: 240 BB heat hooked up 120....drier on 2p20....range on 2p50....water heater fed with 2c14 Bx on 2p15."

Go HERE to join the discussion

 


 

Ideal's Stay Wired to WinIt's April, which means it's time for you to ignite your competitive spark with the a new challenge from IDEAL Nationals Canada. This month, IDEAL is asking you to show off your electrical knowledge with the most correct answers.

Five professionals and five apprentice winners will each take home a $100 VISA gift card and forged wire stripper from IDEAL.

 

 

 

 

Read More


 



William (Bill) BurrBy William (Bill) Burr

Section 32 – Fire Alarm Systems, Smoke and Carbon Monoxide Alarms, and Fire Pumps, as outlined in Rule 32-000 Scope, is a supplementary or amendatory section of the code and provides additional and specific requirements for the location, installation, wiring, and protection, of

• local fire alarm systems

• permanently connected smoke and carbon monoxide alarms...

Read More


 

LumenpulseBy Matthew Payette

A lighting programming and control narrative is a document that is essential to coordinate the design/construction process with a fully realized final architectural product. It defines how lighting will integrate into the space and ultimately how humans will interact with that same space.

Sometimes there is a gap between the initial visions of the designers and the final product. Other times, the final product and operation of the lighting systems is achieved but after much project management distress...

Read More


 

Product News

  • Prev
MaxLite introduces the next generation of WallMax Open Face LED Wall Packs with field-selectable ...
Gotham has released its Incito™ 4” Direct-Indirect Wall Mount Cylinder luminaire. The new cylinder ...
Arlington's low cot MC cable fittings in a variety of sizes, are super convenient and ...
The Boca Flasher’s NanoLume has a streamline profile. It is a line voltage fixture perfect for Cove ...
120V AC Model, 24V DC Model, Model LB4R, cULus Listed. Type IC Rated – Approved for Direct Contact ...
 Available in Visual Comfort or Discrete optics configurations. Lumen packages from 1,600 to ...
For direct wire applications only. Consult factory for junction box sold separately. Aluminum cast ...
INFINA® DL-AC-FLEX2 is the next generation of high lumen output, specification grade, a flexible ...
Traditional in appearance, not in innovation. From below the ceiling, the Juno Podz take ...
The SLM is an ultra-slim, modern LED panel featuring edge-lit design for impressive visual comfort ...

 

11 Piece Insulated TorqueVario-S and SlimLine Blade Set• Individually tested to 10,000 volts AC and rated to 1,000 volts AC for safety and peace of mind.

• Meets VDE testing standards for protection against arc flash explosion.

• Torque accuracy of +/- 6% for confidence in precise tolerances.

• 33% narrower blade shafts for reaching deep set terminal block fasteners.

• Direct-molded insulation for protection against electrical shock and arc flash explosion.

Read More


 

 

FLIR TZ20 Dual Thermal Camera Drone PayloadPlug-and-Play Gimbal System for the DJI Matrice 200 Series and Matrice 300 Offers High-Definition FLIR Thermal Imaging with Zoom Capabilities to Improve Situational Awareness.

The FLIR Vue® TZ20, the first high resolution, dual thermal sensor gimbal purpose-built for the DJI®Matrice 200 Series and Matrice 300 airframes is now available in Canada. Featuring both a narrow-field-of-view and a wide-field-of-view 640x512 resolution FLIR Boson®thermal camera module, the Vue TZ20 offers greater situational awareness with a 20-times digital thermal zoom capability to complete public safety and industrial inspection missions both near and far. 

Read More


 

 

Autodesk TakeoffAutodesk, Inc. has announced the worldwide availability of Autodesk Takeoff, a new product that empowers estimators to perform 2D and 3D quantification workflows from a common data environment to increase collaboration, speed and accuracy during the estimation process.

Originally announced at Autodesk University in November 2020, Autodesk Takeoff will join Autodesk Build and Autodesk BIM Collaborate as part of the Autodesk Construction Cloud unified platform. The announcement comes one month after Autodesk Build and Autodesk BIM Collaborate were made available globally for Autodesk Construction Cloud customers. 

Read More


 

Peers & Profiles

  • Prev
Kyle Manfredi is the owner of ARK Electrical alongside his wife, Shannon. Operating out of ...
Like most major events over the last year, the COVID-19 pandemic put serious restrictions on the ...
This past December Jennifer Green was honoured with Canada’s Most Powerful Women Top 100 Award for ...
“It was quite surprising,” said Stephanie Smith of being named EHRC’s Leader of the Year. ...
As an advanced networked lighting controls company serving the industrial and large commercial ...
Trilliant, an international provider of utility solutions for advanced metering and smart grid ...
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 ...


EIN Green 100 400

By Blake Marchand

This past December Jennifer Green was honoured with Canada’s Most Powerful Women Top 100 Award for the Skilled Trades category by WXN (Women’s Executive Network).

“It is truly an honour to be recognized by WXN and to be among this group of amazing women,” said Green of earning the distinction. “Throughout my career, I’ve worked with many great mentors and team members – to them, I say thank you for always inspiring me. I am absolutely thrilled.” Green is an industrial mechanic millwright by trade and works with Skills Ontario as Director of Competitions and Young Women’s Initiatives. 

Read More


 

Jo Istanbul Four Seasons ABy Owen Hurst

Recently, Electrical Industry Canada has developed a relationship with Women in Renewable Energy (WiRE), a non-for-profit group developing resources and networking potential for women and all working or planning to work within the renewable energy sector. Aside from being the WiRE President & CEO, Joanna Osawe is the Global Business Development Manager of Major Projects for DMC Power Inc.

EIN sat down with Osawe to learn more about WiRE and the substantial benefits it provides. Joanna is very personable and open regarding her career and her ambition, as well as the opportunities she is developing for women nationally and globally. 

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
©2021 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