Canadian Electrical Industry News Week

Feb 25, 2016
Hazardous Area Project

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. This is not intended to replace the notes in Appendix B or the explanations of individual requirements contained in the CEC Handbook, but will hopefully provide some help in navigating the code. In this article: Section 18 Hazardous locations, Part 1.

Section 18 covers installation of electrical equipment in hazardous locations as defined in Section 0, such as areas in which there is a potential for the ignition of explosive or combustible gases, dusts, fibres or flyings due to the design, installation or use of electrical equipment.Since the information in this instalment is extensive, it will be presented in two parts. Part B will appear in the March 8 issue.

Rule 18-000 outlines the scope ofthis section, which is a supplementary section of the code and as such outlines additional or supplementary requirements for the selection and installation of electrical equipment in hazardous locations. In addition, Section 18 now uses the international zone system of area classification; however, in cases of addition or renovation to an existing installation classified to the Division system, the electrical equipment may be chosen and installed in accordance with Appendix J of the code. Also note that additional information is available in Appendices B and F.

Rule 18-002 provides special terminology definitions for terms used in this section, which are additional or supplementary to the definitions in Section 0.

Rule 18-004 divides the classifications into explosive gas atmospheres or explosive dust atmospheres. Reference material for area classification can be found in Appendix B. To use Section 18 you must determine the classification of the area in which you are working.

Rule 18-006: locations containing an explosive gas atmosphere are divided into zones 0, 1 or 2 depending on the frequency of occurrence and duration of an explosive gas atmosphere. Appendix B provides typical examples of explosive gas atmosphere classifications.

Rule 18-008: locations containing an explosive dust atmosphere are divided into Zones 20, 21, or 22 depending on the frequency of occurrence and duration of an explosive dust atmosphere. Appendix B provides typical examples of explosive dust atmosphere classifications.

Rule 18-010 specifies that alterations or repairs to equipment must be authorized and not be made to live equipment. In addition this rule specifies that electrical equipment in hazardous locations must be maintained in its original safe condition. Again appendix B provides additional guidance in developing proper maintenance procedures.

Section 18 is divided into three main parts covering
• general requirements
• explosive gas atmospheres
• explosive dust atmospheres

General

This rules in this part apply to all hazardous location installations, both explosive gas and explosive dust atmospheres.

Rule 18-050: the code requires that electrical equipment used in such locations be suitably designed, tested, and certified for the specific explosive atmosphere that will be present. This rule also provides groupings of various explosive gases and combustible dusts and fibres for which electrical equipment must be suitable. It also provides a hierarchy wherein electrical equipment suitable for a preceding group may also be suitable for a latter group.

Rule 18-052 lays out the marking requirements on electrical equipment intended for use in hazardous locations, which includes:
• letters “ex”
• method of protection
• group as per 18-050 above
• temperature rating
• equipment protection level
• for equipment for use in explosive gas atmospheres, the maximum surface temperature as per 18-052 (a),(b) and (3),(4), and (5)

For more specific marking information, please see Appendix B and my previous article – http://electricalindustry.ca/latest-news/1055-equipment-marking-for-hazardous-locations-in-cec-2015-23rd-edition.

Rule 18-054: equipment with an internal or external surface temperature equal to or higher than the ignition temperature of the combustible gas or explosive dust must NOT be installed in that location. This is true even for equipment that is not required to be approved for hazardous locations. While there is no definition of ignition temperature in this section, Appendix B has a chart that shows the ignition temperatures of various gas groups.

Rule 18-056: every separate area, section or room must have its own classification as a hazardous location.

Rule 18-058: if equipment rooms are intended to be hazard free in hazardous locations, they must be constructed of substantial, non-combustible materials and in such a way to ensure they remain hazard free. Where the equipment room communicates with a Zone 2 or an explosive dust atmosphere, it must be separated by close-fitting, self-closing doors. Where the equipment room communicates with a Zone 1 location, it must be considered a Zone 2 location unless ventilation and safeguards are in place as per Rule 18-002 and the definition of Zone 2(b).

Rule 18-060: when using metal-covered cable in hazardous locations, caution must be taken to ensure that
• any lightning related voltage surges on mineral-insulated cable are limited to 5 Kv,or
• circulating currents on single conductor armoured cable are eliminated

For the former, this is accomplished through the use of surge suppressors, For the latter, through bonding the metal sheaths together, at intervals of 1.8 m or less.

Alternatively, insulation jacketed cables can be used but the metal armour must be bonded to ground in the hazardous location and isolated in the non-hazardous location.
Rule 18-062: equipment rooms can be exempted from rules 18-100 to 18-158 if a continuous pressurized protective gas atmosphere is maintained.Appendix B has references to consult in accomplishing this. Note also that procedures must be in place to eliminate any possibility of an ignition source if pressurization fails.

Rule 18-064: there are three levels of energy limitation to provide intrinsically safe installations:
• ia permitted for Zone 0, Zone 1, Zone 2, Zone 20, Zone 21, or Zone 22, whichexempts from rules 18-102 to 18-254
• ib permitted for Zone 1, Zone 2, Zone 21, or Zone 22, which exempts from rules 18-102 to 18-254
• Ic permitted for use in Zone 2 or Zone 22, which exempts from 18-152 to 18-158 and 18-252 to 18-254

Appendix F provides additional information and recommended installation practice for installing intrinsically safe and non-incendive electrical equipment and wiring.

Rule 18-066: to avoid a build-up of dust on cables, cable trays should be open ladder type, covered or installed vertically.

Rule 18-068: in some hazardous locations, non-hazardous, non-arcing, sparking, or heat producingequipmentmaybe installedwhere there is a detection system that continuously monitors the area and activates an alarm, activates ventilation equipment, or de-energizes electrical equipment if a gas concentration reaches a percentage of the explosive limit.The percentage depends on the existence and continued operation of a ventilationsystem.Consult Appendix H for application, installation and maintenance recommendations.

Rule 18-070: where electrical equipment is in contact with flammable fluids, the primary seal must be constructed or installed to prevent any migration of such fluids through the wiring system.If this is accomplished through the use of a secondary seal, an indication or warning marking is required in case the primary seal fails.

Rule 18-072: the rules of Section 10 Grounding and bonding apply to hazardous locations. Additionally, where rigid metal conduit is used, threaded couplings and bosses on enclosures made up tight are required,unless incorporating internal bonding conductors.

Rule 18-074: only intrinsically safe equipment or cranes, hoists and similar equipment installed as per 18-250(2) are permitted to have uninsulated exposed parts in hazardous locations.

In the next instalment we will continue with Part B of Section 18.

* The source for this series of articles is the Canadian Electrical Code, Part I, published by CSA.

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
The federal governemnt has officially launched a call for proposals (CFP) for the  ...
The Electrical Contractors Association of BC (ECABC) has announced the impending departure of ...
The Minister of Employment, Workforce Development and Disability Inclusion, Carla Qualtrough was at ...
The launch of the Apprenticeship Service stands to help overcome financial barriers employers face ...
The National Electrical Trade Council (NETCO) is pleased to announce that they will be rolling out ...
43 years ago, Steve Silverstein bought a table saw and a delivery van and began a revolution in the ...
E.B. Horsman & Son (EBH) has announced their Victoria location will be officially moving to a ...
 The Maritime’s largest Mechanical and Electrical event took place last Wednesday and ...
IDEAL INDUSTRIES, INC. is calling all professional and student-apprentice electricians to come out ...
Vivi White has been appointed to the Board of Directors of the Electrical Safety Authority ...

Become a Wiser Approved Installer

Wiser Approved Installer

Get access to exclusive benefits, product discounts and resources that will help you drive more business, and lower energy bills for your clients.

 

 

 

Read More


 



Government of CanadaThe federal governemnt has officially launched a call for proposals (CFP) for the Zero-Emission Vehicle Awareness Initiative (ZEVAI). The initiative’s 2022 CFP will help fund new and innovative projects that aim to increase awareness and knowledge of ZEVs and charging and refueling infrastructure thereby increasing public confidence in these vehicles and their economic and environmental benefits.


Natural Resources Canada will provide funding through non-repayable contributions of between 50 and 75 percent of the total eligible project costs, with a maximum funding of up to $300,000 per project. The CFP will close on August 18, 2022.

Read more


 

Omnicable joins ETIMETIM North America announced that OmniCable has joined the product classification standards organization. Headquartered in West Chester, PA, OmniCable has 24 locations throughout North America, and also owns Houston Wire & Cable (HWC). The company partners with many electrical manufacturers and only sells to distributors.

According to John Dean, Director of Marketing & E-Commerce, OmniCable/HWC, “The wire and cable industry is often called commodities, but there are very distinct features and attributes for the different products our manufacturers produce. 

Read More

 


 

Atkore United Poly SystemsAtkore Inc. announced that it has acquired United Poly Systems, a manufacturer of High Density Polyethylene (HDPE) pressure pipe and conduit, primarily serving telecom, water infrastructure, renewables, and energy markets.

“We are pleased to complete the acquisition of United Poly Systems, which strengthens Atkore’s product portfolio, expands our manufacturing capacity and further enables us to meet HDPE customers’ needs,” stated John Pregenzer, President of Atkore’s Electrical business. “HDPE pipe and conduit is a growing market that is expected to benefit from U.S. infrastructure legislation, and United Poly Systems is a great addition to Atkore. We welcome these employees and look forward to working together to continue to serve and support our customers.”

Read More


 

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

 


 

Grimard is More Competitive and Produces Estimates 3X Faster with Procore

ProcoreWhen the pandemic lockdowns started in March of 2020, Grimard (an electrical contractor) had to decide whether to shut down its operations entirely or implement a new platform with people who were now freely available for work. Once they implemented Procore, they found a way to efficiently communicate with stakeholders and offer full transparency in terms of project costs and planning. It also allowed Grimard to utilize historical data to make project estimates more accurate. Grimard was able to streamline its bidding process, which made it more attractive to potential clients and helped the business grow.

Read More


 



 

Iron+EarthThe RenuWell Project partners are excited to announce the groundbreaking of two pilot sites located near Taber, Alberta. These pilot sites are the first of their kind to repurpose inactive oil and gas infrastructure as a foundation for renewable energy development and job creation.

When operating, the solar projects will generate 2,030 MWh annually – enough electricity to power 280 average Alberta households or irrigate 11,700 acres of farmland for an average year. This is roughly equivalent to $200,000 in electricity sales per year with 1,100  tCO2e savings in GHG emissions. Over a 25-year lifespan, the projects will generate 50,750 MWh, with GHG emission savings of 28,420 tCO2e.

Read More


 

David O'ReillyBy Elle Bremmer

Recently, I had the pleasure of sitting down with David O’Reilly, Vice President Home & Distribution and Secure Power Divisions with Schneider Electric Canada for a discussion regarding the Wiser EnergyTM smart home solution, the Wiser Approved training program, and his thoughts on several different subjects, including sustainability and future technologies currently in the works at Schneider Electric. David has been with the company for five and a half years in his role.

We recently published a study (version en français ICI) from Schneider Electric showing a strong interest from Canadians in smart home technology. 

Read More


 

SimplySnap: It Just Works.

SynapseSmart technology is only smart if it works, and SimplySnap? It just works.
Scalable, field-proven, DLC NLC 5.0 qualified, and easy-to-install wireless network
lighting controls are in-stock. Explore energy code compliant SimplySnap
technology here.

Read More

 


 

Product News

  • Prev
Ericson announces upgraded versions of their extremely capable line of Industrial String Lights and ...
Intermatic Incorporated announced its new P40000 Series Load Centers, a set of next-generation ...
Klein Tools introduces new Stand-up Zipper Bags, in a 2-Pack with 7-Inch and 14-Inch sizes, ...
Cree LED, anSGHcompany, announced the launch ofXLamp® Element G LEDs, delivering a new ...
The Occupational Safety and Health Administration (OSHA) estimates 350 employees are killed ...
IDEC Corporation has released a complete product line of S3TL series ferrules, wire strippers, ...
Corning CCH pigtailed cassettes are factory assembled, quality tested, and available in LC and ...
QuickLink delivers the fastest downlighting installation HALO has to offer. Installers can power up ...
Kidde HomeSafe™ is a comprehensive suite of smart home safety devices to help protect against ...
Combination Couplings used to join 3/4" EMT conduit via set screw to 14/2 through 10/3 Steel and ...


Ericson String LightsEricson announces upgraded versions of their extremely capable line of Industrial String Lights and SL, LED Stringlights. These new and updated products have several key features important when safe, code compliant lighting for industrial workspace is necessary.

Infinitely capable, these ruggedly built products have several industry leading & exclusive features including:

Industrial String Lights:

  • A United States Navy Specification since before WWII, they’re time and application tested...

 

Read More


 

 

Intermatic Pool and Spa SolutionIntermatic Incorporated announced its new P40000 Series Load Centers, a set of next-generation panels for pool-only applications, as well as its new PE24GVA 24-Volt Valve Actuator, an easy-to-install valve actuator that allows for tool-free cam adjustments. Both solutions remove obstacles for pool service professionals while delivering lasting performance.

“Intermatic load centers and valve actuators have been the preferred choice of pool professionals for more than 30 years,” says Brian Lamberty, product marketing manager at Intermatic. “The PE24GVA and P40000 Series build on that tradition, helping pool professionals streamline service calls while setting the standard for quality and performance.”

Read More


 

 

Klein Tools Zipper BagsKlein Tools introduces new Stand-up Zipper Bags, in a 2-Pack with 7-Inch and 14-Inch sizes, both designed to handle tough jobsite conditions and stand up so tools and small parts can be easily accessed when working.

Stand-up Zipper Bags, 7-Inch and 14-Inch, 2-Pack (Cat. No. 55559)

  • Perfect for storing pliers, wrenches, screwdrivers, drill bits and other small tools and parts
  • 4 1/2’’ tall zipper bags come in two sizes:
    • 14’’ (36.6 cm) dark gray
    • 7’’ (17.8 cm) royal blue


Read More


 

Emerson HV SafetyThe Occupational Safety and Health Administration (OSHA) estimates 350 employees are killed annually in electrocution accidents, which roughly equals one fatality per day. In the face of these dangers, OSHA officials and industry safety consultants alike recommend eliminating potential hazards on work sites, rather than simply relying on contractors or employees to follow safety guidelines.

To help safeguard employees from electrocution, Emerson has launched its Appleton™ Powertite™ Lock Collar, a device that fastens over plug and connector connections and is secured with a padlock, preventing unauthorized personal from disconnecting the cable connection once in place. 

Read More


 

Peers & Profiles

  • Prev
Watt’s the Word is a recently launched Electrical Industry Podcast hosted by Zack Hartle and ...
Allana Kellett-Jamieson loves working in the electrical sector and is proud of the great focus ...
As the head of ABB Canada's electrification business unit, Éric Deschênes is no newcomer to the ...
Karen Pullen knows what it’s like to be the only woman on a construction site, and as a proud ...
As of February 2021, Martin Stephenson is the new President and CEO of Signify Canada.   ...
This past July, Kerith Richards, who has worked for Service Wire Company for the last seven years, ...
EngWorks was formed in 2004 as an electrical engineering and consulting firm by Allan Bozek, “After ...
Headquartered in Concord, Ontario, Mercury Lighting services national retail, ...
Among the recipients of the 2021 Clean50 Awards announced last month is Carolina Gallo, Vice ...
Sarah Silverstein is a principal with Liteline along side her two brothers Mark and Daniel. ...

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
©2022 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