Arcflash.ca Wants To Keep Your Employees SAFE This Winter!

Erin M • Nov 13, 2019

It may be cold outside - but things are heating up in the world of workplace electrical safety! Check out some great electrical safety tips below, as well as new courses and workshops.

Don’t Automatically Reset a Circuit Breaker that Trips!

This article was originally authored by Mr. Jim Phillips- Brainfiller. com

The circuit breaker just tripped. Production is down, alarms are sounding in the background. Panic time. For many, this scenario would mean quickly re-set the circuit breaker and “see what happens.” Not the best idea – the question needs to be asked – why did the circuit breaker trip? This situation can become an even larger problem if the circuit breaker has setting adjustments. Before I go any further, let’s back up a few steps.

Adjustable Circuit Breakers

Many circuit breakers have setting adjustments that can be used to define how the device responds to short circuit currents. Adjustable circuit breakers as a minimum, will have an adjustable instantaneous setting that defines the level of current where it will trip with no intentional time delay. a.k.a. instantaneous trip. If the abnormal current exceeds this current level, the device trips instantaneously – if the current is less than this level, it will trip in the time delay or overload region.

Other more complex devices such as electronic trip and digital breakers can have a multitude of settings that are used to define an elaborate tripping characteristic. The preferred method for determining the settings for these devices is to perform a coordination study. This requires that the various protective device in the electric power system be analyzed to determine how they should be set so only the device furthest downstream nearest the load trips in the event of an abnormal current. This allows the other devices towards the source to remain closed and results in the minimum amount of an outage.

However, there is another objective and that is to ensure that the protective device also responds quickly enough to provide suitable protection of the conductors, transformers, motors and other electrical equipment. The recommended settings should take into account both selective coordination

and

protection.

Changing the Setting

As mentioned, when a protective device trips, often the first response is to simply reset it and see what happens. More often than not, if a breaker tripped once, it will probably trip again because simply resetting it did not solve the root cause of the problem. The second time the device trips, many “experienced” people will increase the setting thinking that it tripped because the setting was too low and not considering why it tripped. Changing a device setting without proper analysis of its impact could reduce selective coordination with other devices and quite possibly reduce the level of protection.

Unintended Consequences – Arc Flash Hazard

Increasing a protective device setting can create a potentially larger and more dangerous problem – Increasing the Arc Flash Hazard! Depending on the arcing short circuit current that could flow during an arc flash, increasing a protective device setting may cause the protective device to take longer to trip during an arc flash. The amount of incident energy from an arc flash is directly proportional to the duration which is defined by the time a protective device takes to operate. An increase in the device setting does not guarantee it will take longer to operate but it could happen. A detailed analysis of the effect that the circuit breaker setting change has on the arc flash hazard is necessary to know for sure.

As an example, let’s say a calculated incident energy is 5.4 calories/centimeter2 (cal/cm2) and the protective device takes 3 electrical cycles (3/60th of a second) to operate. If a setting change causes the device to now take 15 cycles (15/60th of a second) to operate, the incident energy would increase by a factor of five to 27 cal/cm2!

The protective device setting’s impact on the arc flash hazard is so important that CSA Z462 - Incident Energy Analysis Method requires that the arc flash risk assessment “shall take into consideration the characteristics of the overcurrent protective device and it’s fault clearing time” and “shall be updated when changes occur in the electrical distribution system that could affect the results of the analysis.” In addition, the “Incident energy analysis shall also be reviewed for accuracy at intervals not to exceed 5 years.” This is to account for changes which can include protective device settings that can affect the results of the of the arc flash risk assessment.

Don’t!

So, if a circuit breaker trips, – don’t simply re-set it until you find out why it tripped. Not because I said so, but because NFPA 70E says so. According to the 2018 Edition of NFPA 70E:

130.6(M) Reclosing Circuits After Protective Device Operation:

After a circuit is de-energized by the automatic operation of a circuit protective device, the circuit shall not be manually re-energized until it has been determined that the equipment and circuit can be safely energized. The repetitive manual reclosing of circuit breakers or re-energized circuits through replaced fuses shall be prohibited. When it is determined from the design of the circuit and the overcurrent devices involved that the automatic operation of a device was caused by an overload rather than a fault condition, examination of the circuit or connected equipment shall not be required before the circuit is re-energized.

If you ultimately make a setting change, review its impact not only on the protection and coordination but also on the calculated incident energy because the next time it trips, there could be a very large BOOM!

Canada Classes – Arc Flash Studies / IEEE 1584

FIRST TIME IN CANADA!
How to Perform an Arc Flash Calculation Study
2018 IEEE 1584
By Jim Phillips, P.E.

With special guests:
Len Cicero and Jim Pollard

Toronto, Ontario – November 4 – 5, 2019
Vancouver, British Columbia – February 24 – 25, 2020

DETAILED AGENDA/REGISTER

For the first time ever, Jim Phillips is bringing his Arc Flash Studies class based on the 2018 IEEE 1584 to Canada! This very intense 2 day course includes an in depth discussion of:

Five different electrode configurations to enable more detailed modeling
More choices for enclosure types and sizes
Enclosure correction factor calculation to adjust for specific enclosure size
The effect of grounding has been eliminated
An arcing current variation factor calculation replaces the 85% factor
Calculations performed at 1 of 3 voltage levels with interpolation to actual voltage
The 125 kVA transformer exception was eliminated

Each calculation is now performed in 2 steps which includes an initial calculation based on one of three voltage levels and a second calculation interpolating to the specific system voltage. The 125 kVA “exception” was replaced. Learn why and what has replaced it. What about the 2 second rule?

Loaded With Hands-On Calculation Problems

This class will be packed with many hands-on calculation examples using Jim’s worksheets. The calculations will illustrate the various changes with the new edition and provide comparisons between the results using the 2002 Edition of IEEE 1584 and the 2018 Edition.

Hands-On Calculation Examples include:

• Arcing Short Circuit Current – Intermediate and Final
• Necessary Extrapolation and Interpolation
• Enclosure Size Correction Factor
• Incident Energy – Intermediate and Final
• Arc Flash Boundary – Intermediate and Final
• Low Voltage and Medium Voltage Calculations
• DC Arc Flash Calculations

Jim will be joined by special guests Len Cicero and Jim Pollard who will be discussing CSA Z462 requirements for arc flash studies and how the study results are used to select appropriate arc rated clothing and PPE.

Movember 2019!

It is the month of "Movember" and to commemorate this, Burlington firefighters have Rescue Unit 312 in black to remind us all of men's health issues. See pictures below!

Have You Heard About The ***NEW*** Arcflash.ca Course: The Safe Application of Fuses For Industrial Mechanics & Millwrights?

 

This course is intended to provide Millwrights and Industrial Mechanics with a better understanding of Canadian fuse products and their applications in order to minimize the possibility of misapplication, ensuring the safety of both equipment and personnel. In addition to providing, through practical scenarios the safe application of fuses to avoid personal injury.

 

1 day- 6.0 hours

 

Contact us today for more information.

 

Workplace Electrical Safety Online Course - $100 Per Person

 

The workplace electrical safety online course is based on the 2018 edition of CSA Z462. The course has been developed for workers who are performing electrical work on energized systems. It provides guidance on industry best practices for the prevention of injury from arc flash and shock.


 

Electrical Safety Assistance? There’s An App For That!

 

Don’t forget, our NEW Arc Flash Electrical Worker Quick Field Guide APP is available on Google Play for just $2.99!



 



We hope you enjoyed all of the information in our Novmeber Newsletter and look forward to hearing from you, as well as bringing more up-to-date electrical safety information and tips in our next newsletter! As always, you are invited to contribute a story or a question that you would like to bring forward to other readers, related to workplace electrical safety or lockout, including PPE and safety equipment.

 

 Please send your stories and questions to Len at len@arcflash.ca . You can also continue the conversation with us on our Linkden Workplace Electrical Safety Communications group!

 

By Len Cicero 10 Oct, 2023
In this article, I discuss the new changes with the 2024 Edition.
By Erin M 21 Apr, 2020
At Arcflsah.ca safety isn't just something we train, but rather a value that we live by. Our hearts truly go out to all of those who have been affected by the COVID-19 pandemic and appreciate all of the hard work and sacrifices being made by all of the frontline workers. We want to let you know that during this time we are taking proper precautions to help keep everyone safe during this difficult time and are still available to assist you should you need us! Online electrical safety courses and other resources are also available here We're all in this together!
By Erin M 11 Mar, 2020
Overall, the 2018 OESR shows a downward trend in electrical fatalities and electrical injuries in Ontario . But there is still more work to do! Take a look at the full document here, and feel free to email or call Len with any questions you may have!
By Erin M 10 Feb, 2020
In the unfortunate event that one has been involved in a motor vehicle collision where there are fallen wires on or near the vehicle, “Stay in the vehicle”… until the electrical utility personnel have arrived. A vehicles tires may smoke or explode from heating up, however remain in the vehicle, except in the case of fire. In the event of the worst case situation, the vehicle is on fire which cannot be readily extinguished. The driver is now in extreme danger. Contacting metal parts of the vehicle and ground at the same time could be fatal. By keeping both feet together and jump clear of the vehicle. Avoid touching the car as both feet come in contact with the ground. Take short shuffle steps keeping both feet as close together as possible. They must avoid contacting each other. Move in this manner away from the vehicle for at least 10 metres (33 ft). Jumping clear of a vehicle can be very dangerous and should only be attempted in circumstances where there is no other alternative such as a vehicle fire. The condition of the vehicle and physical ability of the occupant must also be considered. In the event that one witnesses a motor vehicle collision involving fallen wires, before getting out of your vehicle, examine the surroundings carefully and ensure that you are parked well away from the fallen wires. If it is night time, use a flashlight to examine the surroundings carefully from your vehicle window. Keep your distance including your vehicle a distance of at least 10 metres (33 ft) or more is recommended from the down wire or conductive object it is in contact with. If an energized wire touches a car, truck, metal fence or any other conductive object that object will now become energized and could cause serious or fatal injury. Establish the “Safe Zone” at least 10 metres (33ft) away from wires and anything the wires may be touching. Secure the area and prevent people from entering into areas where there are fallen or broken wires, or electrically charged objects. Do not attempt to move any fallen wires, call and wait for electrical utility personnel. To learn more, check out the video below, as well as the amazing pictures courtesy of the London Ont. Fire Department !
By Erin M 17 Dec, 2019
Arcflash.ca would like to wish everyone all the best to you and your families for a safe and happy holiday season - and best wishes in the upcoming year!
By Erin M 23 Sep, 2019
Canada, It's Your Opportunity To Register For: How to Perform Arc Flash Studies Based On The 2018 Edition IEEE 1584 For The First Time In Canada, You Can Take Part In This Amazing Course In Both Toronto & Vancouver! November 4-5, Toronto February 24-25, 2019, Vancouver ABOUT THE CLASS Take a deep dive into the NEW 2018 Edition of IEEE 1584 with Jim Phillips as he shows you how to perform arc flash calculations and arc flash studies based on the latest edition of this landmark standard. After 16 years in the making, this second edition changes everything you thought you knew about arc flash calculations and studies. You will solve many in-class problems using Jim's calculation worksheets based on the NEW 2018 IEEE 1584. Learn how to perform intermediate and final calculations of incident energy, arcing current and arc flash boundary as well as enclosure size correction factor, arcing current variation correction factor calculations and much more!  Review of the changes  Electrode configurations: VCB, VCBB, HCB, VOA and HOA,  Enclosure size correction factor calculation  Arcing current variation correction factor calculation  Intermediate and final calculations  Final solutions using interpolation  In class calculation examples using Jim's UPDATED worksheets  DC arc flash calculations  What happened to grounded vs. ungrounded  What replaced the 125 kVA language  Much more
By Erin M 13 Aug, 2019
You're invited to register for the NEW 2018 Edition of IEEE 1584 with Jim Phillips as he shows you how to perform arc flash calculations and arc flash studies based on the latest edition of this landmark standard.
By Erin M 29 May, 2019
With summer on the horizon, things are heating up in the arcflash.ca world! In our latest newsletter we’re going to touch base on some common, but vital, Arc Flash Q&As, the importance of keeping your work van clean, and the introduction of our brand new arcflash.ca course: The Safe Application of Fuses For Industrial Mechanics & Millwrights. Looking forward to your feedback on these topics, as well as answering any electrical safety questions you may have!
By Erin M 12 Mar, 2019
March has been a busy month for Arcflash.ca! Spent a wonderful time and learned many amazing new things at the Electrical Safety Workshop in Jacksonville, FL. And we are now looking forward to heading off to the Technical Committee meeting in Vancouver on March 27, 28 to begin work on the 2021 edition of the CSA Z460, Workplace Electrical Safety Stan dard Update ! Spring is just about here! In this month's newsletter we will be "Springing Into Electrical Safety" with information regarding an upcoming electrical training seminar...the importance of being safe while, "Working Energized"...and letting you know how to get your copy of The Ontario Electrical Safety Report. Have questions? Head on over to our Facebook or Linkedin pages and let’s continue the conversation. Also, don’t forget to also download our NEW! Arc Flash Electrical Worker Quick Field Guide App for just C$2.99 on Google Play!
By Erin M 20 Feb, 2019
Happy February! We’ve certainly been busy in the second month of 2019, ensuring, exploring and expanding on important electrical safety standards, as well as visiting great facilities across Canada and the United States. Here’s a brief look at what we’ve been up to in February and where we are headed in March: · Had a great time with some great people at the Technical Committee meeting in Toronto February 12 & 13, working on the 2018 edition of the CSA Z460 - The Control of Hazardous Energy - Lockout and Other Methods Standard · February 20th: Arcflash.ca was at the Eaton Power Distribution Experience Centre in Pittsburg PA . for a very informative and educational visit to this amazing facility · Looking forward to the Technical Committee meeting in Vancouver on March 27, 28 to begin work on the 2021 edition of the CSA Z460, Workplace Electrical Safety Standard Update Be sure to check out the great article below from Lineman’s Testing Laboratories of Canada. Have questions? Head on over to our Facebook or Linkedin pages and let’s continue the conversation. While you’re there, be sure to check out our video on ‘The Misapplication of Fuses’ that takes a look at the importance of knowing fuse ratings, particularly for those non-electricians installing and removing cartridge fuses. Also, don’t forget to also download our NEW! Arc Flash Electrical Worker Quick Field Guide App for just C$2.99 on Google Play! ARTICLE: EXERCISE DUE DILIGENCE: Ensure The High Voltage Laboratory Testing Your PPE Is An Accredited Certified Laboratory Submitted By: Lineman’s Testing Laboratories of Canada With the continuing emphasis on workplace safety awareness programs, acronyms like “PPE” are commonplace. Regulatory bodies and industry associations have mandated the use of Personal Protective Equipment (PPE) when working with electrical power or energized equipment of 30V or more (CSA Z462). In addition to the implementation and enforcement of an electrical work policy for the protection of both the worker and the company, it is imperative that workers understand how and why the required PPE will help them, as well as how to properly care for, inspect, and maintain this equipment to comply with legislation. Arc flash clothing and face protection have specific application ratings, while insulating rubber gloves, cover up products, ground sets or assemblies, live line tools and metering/ phasing equipment have both specific application ratings and recertification requirements. All PPE is to be tested by an accredited certified laboratory on a regular basis (IHSA EUSR 134). Laboratory Certification or Accreditation: What’s the difference? Certification and accreditation are often terms used interchangeably when discussing testing laboratories; however, there is a difference. The onus is on the end user to understand the qualifications of the high voltage testing laboratory they are using. A laboratory may develop a program for testing equipment and may operate without having been audited by an independent third party that would ensure the lab is performing and complying with industry best practices and standards. Oftentimes, laboratories are certified by organizations not from within the testing and/or PPE industry, with knowledge that is limited to their interpretation of the relevant standards, or laboratories may not be certified at all, and simply offer services with no regard for compliance. Accreditation is the formal declaration by a qualified and knowledgeable neutral third party that the testing program is administered in a rigorous manner that strictly adheres to relevant standards for the equipment being tested, and that the lab operation as a whole meets industry best practices. What is NAIL? NAIL for PET (North American Independent Laboratories for Protective Equipment Testing) is the only accreditation program for electrical equipment test laboratories in North America. To maintain accreditation, regular audits are conducted to ensure industry accepted standards are strictly adhered to, including review of operational areas including but not limited to laboratory facility, equipment, training and knowledge of staff, quality control work procedures, and financial responsibility. Any group claiming to be a test facility or offering the services of a test facility, who are operating without NAIL-accreditation are not monitored or audited by a governing agency to ensure continued compliance to industry best practices or standards. Quality Healthcare Why Use an Accredited Laboratory? Worker Safety A worker needs to feel confident that the equipment being used meets all regulatory requirements – an accredited certified laboratory will assess the integrity of the equipment to ensure it is safe for use. Proper care, use, and maintenance of the PPE is essential to ensure the equipment continues to provide the degree of protection for which it is designed, protecting the worker and the employer from lost time injury and workers’ compensation costs, and/or lawsuits. Compliance All laboratories must maintain detailed procedures manuals and records of equipment tested. After each test, an electronic record is kept indicating what equipment was tested, the name of the technician who performed the test, as well as the date of the test. The ability to present a test report proves advantageous in demonstrating due diligence to necessary authorities during an investigation should an incident occur where a worker is injured. To further comply with legislation, initial electrical acceptance tests are also to be performed by an accredited certified laboratory, Infostructure Health & Safety Association (IHSA), Electrical Utilities Safety Rules (EUSR). The product manufacturer has options as to how to proof-test equipment in the factory. As most manufacturers do not provide test reports, there is no ability to track the test data back to the manufacturer; with no proof of compliance, the worker and company are in a position of liability should there be an incident or investigation. In many cases, the manufacturer does not meet the requirements as set out in the IHSA EUSR book, as the EUSR book states that in order to comply, an accredited certified laboratory must present documentation, test reports, as well as meet other technical aspects as required of certification. For instance, should there be an investigation where there was electrical contact involving a worker, potentially resulting in serious burns, injuries or fatalities, the user and owner of the equipment would rely on the manufacturer for documentation as proof that the equipment in question was tested (as there is no test report provided at time of purchase). The liability in this case would fall directly on the equipment owner with little to no support from the manufacturer; both the manufacturer product and testing methods would be in question. Equipment owners who want to properly protect their users from electrical hazards, as well as protect themselves legally, should ensure that the equipment they provide to their workers is tested in compliance with relevant industry standards, and that they are provided with a test report as proof of service. Ensure your equipment is covered under warranty. By performing initial acceptance testing of new equipment purchased from a manufacturer at an accredited certified laboratory, the user is covered under warranty should the equipment fail after use on first retest. It is not uncommon for manufacturers to produce batches of product where large numbers of failures occur. Without having performed the initial acceptance testing in an accredited certified laboratory, the end user is left with no support or warranty (ASTM D120, Section 12). Efficiency Equipment that is properly maintained lasts longer, is more likely to perform to its original manufacturer specifications and is in a condition that minimizes the risk of interruption or harm to the worker. For optimum efficiency, back-up or redundant equipment is recommended to eliminate downtime when equipment is in a testing rotation cycle. An automatic equipment replacement program ensures users are always in compliance, eliminates work stoppage, and reduces the likelihood of an electrical incident. A reputable accredited certified laboratory will offer full service compliant solutions for managing your PPE including supply, replacement, inspection, calibration, testing and training. Exercise due diligence and ensure your safety – make certain your PPE is maintained and tested on a regular basis by an accredited certified high voltage testing laboratory. Lineman’s Testing Laboratories of Canada (“LTL”) is a privately-owned Canadian company serving the utility, industrial and renewable energy sectors across Canada. LTL provides the services of three divisions: Power Technical Services (Electrical Engineering & Substation Services); LTL Utility Supply; and, High Voltage Testing, Calibration and Factory Authorized Tool Repair Services in Canada’s largest NAIL-Accredited Laboratories.
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