Canadian Electrical Industry News Week

May 5, 2019

EV TechBy David Corbeil

The definition of electric vehicle energy management systems — or EVEMS — is a recent addition to the Canadian Electrical Code. This addition allows for broader applications and answers to evolving electrical needs in the market with the uptake in electric vehicles. These devices are also commonly referred to as demand charge controllers, or DCCs.

The 2018 CE Code further recognized and addressed the evolving electric vehicle technology and issues associated with future loading on electrical infrastructure. Section 8 was expanded to include two new definitions:

    • Control of electric vehicle supply equipment loads — the process of connecting, disconnecting, increasing, or reducing power to [electric vehicle] supply equipment.


    • Electric Vehicle Energy Management System — a means of controlling [electric vehicle] supply equipment loads comprised of any of the following: a monitor(s), communications equipment, a controller(s), a timer(s), and other applicable device(s).

In many instances, the addition of electric vehicle supply equipment (EVSE) can result in the total load exceeding the existing service capacity. This is the main use case for the addition of EVEMS. A secondary option is to increase the service size but in practice, the cost is often prohibitive.


EVEMS technology is intended to limit and regulate the electrical loads when EVSE is installed to a load calculation at 100% of the rating. These devices dynamically and instantaneously control the EVSE loads in such a way that the overall load does not exceed the limits of the existing service, feeders, and branch circuits, with a tripping point generally set to 80% of available power.

Multi-unit buildings pose additional constraints than those seen in single-dwellings and an EVSE in the form of a demand charge controller — a DCC — is implemented in these scenarios. These devices are connected to the main panel intercepting the connection in proximity to the electrical meter, often in an electrical room. By intercepting the connection at ground level, the overall footprint of the installation is kept to the minimum required.

An EVSE installed and controlled by a demand charge controller (DCC) is capable of summing static and variable loads and controlling the variable load so that the total power consumption does not exceed the circuit rating.

The application of a DCC is identical when an EVSE is added to an existing single-dwelling home with a load calculation at 100%.

EV Tech EV Tech

 

 

 

 

 

 

 

 

 

EVSE demand is unpredictably growing and the installation of DCCs is used in new constructions to mitigate the future impact on the residential service.

These types of devices are implemented in global retrofits for multi-unit dwellings, creating buildings ready to accommodate electric vehicles, or in new development plans to evade future upgrades and installations.

The cost benefits of this technology, in both retrofitting existing builds and in new construction, are significant for the building industry and the utility alike because maximum impact information on EVEMS technology is required at the design stage for any installation.

David Corbeil is the co-inventor of the DCC, Demand Charge Controller, and is the CEO at RVE, a company focused on residential electric vehicle charging solutions. He has considerable experience in the electric vehicle charging industry, beginning his career as an electrician, sits on the boards of the Association des Véhicules Électriques du Québec and Electric Mobility Canada. To get in touch: david@dcc.technology | www.dcc.technology

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SaskatchewanThe Government of Saskatchewan is engaging the public to help ensure health and safety legislation meets the needs of employers and workers in the province. From August 16 to October 18, 2021 citizens can provide input on part III (occupational health and safety) of The Saskatchewan Employment Act.

"Our province has a plan for growth that includes ensuring we have safe and healthy workplaces" Labour Relations and Workplace Safety Minister Don Morgan said. 

 


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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

 


 



 

Desert HomeA combination of stunning design, a spectacular desert setting, and exceptional architectural lighting is a winning combination for a private residence just outside of St. George, Utah. JRC Lighting was hired by the homeowner to create the lighting concept for the showpiece home.

"The house has an almost industrial look to it, with a focus on clean lines," said Kevin Meredith, principal at JRC Lighting. "My goal was to keep the lighting understated and let the architecture, and the views, sell themselves.”

 

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David GordonBy David Gordon

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So, since it seemed like a sports car “name” (since sports car naming seems to be in numbers), we reached out to Sarah Eastman, VP Marketing for EiKO, who shared that Z10 is an alliance of manufacturers who have developed standards to support an easier lighting controls process within fixtures (remember, I’m not a product maven).
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Milwaukee M12 Cable StripperM12™ Cable Stripper Kit for Cu THHN / XHHW aims to improve the cable stripping experience. With no exposed blades, the cordless cable stripper provides safer stripping than with a knife. The cable stripper's compact, right-angle design allows you to maneuver it more easily in tight spaces with less strain on the wrist. The bushing design and adjustable depth gauge deliver cleaner, more accurate and consistent strips across all sizes.

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Incoplas HybridThe Incoplas® LED Hybrid is a durable multi-purpose and corrosion-resistant LED lighting solution that can be used in heavy industrial applications where hazardous location lighting is required.

Certifications

Class 1:

Flammable Gases and Liquids

Division 2: The hazardous atmosphere is only available infrequently (i.e. in case of spill).

 

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This insures that people within the building can evacuate safely in the event of an emergency. All EarthTronics emergency drivers meet specific UL, CSA and NFPA requirements. Always consult local code requirements when specifying emergency lighting products.

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“How we differentiate ourselves is we’re lighting specific, we do very little in the way of electrical, and really emphasizing our expertise towards solutions selling...

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