Canadian Electrical Industry News Week

Photocontrol LongevityAlthough the extended life of LEDs compared to other lighting solutions is beneficial, it also presents a compatibility challenge with older technology controls, especially with outdoor photocontrols. The rapid change to LED fixtures and luminaires can leave contractors, designers and distributors facing questions they cannot answer. Here are four photocontrol design solutions to minimize the effects of high inrush currents on electronic ballasts.

1. Employ a high-current rated thermal or electromechanical relay (brute force approach)

An electromechanical relay life can be shortened when switching high inrush currents that exceed the relay’s electrical ratings. With high inrush currents, significant electrical sparks can occur during switching, causing pitting and wear on the relay’s contact surface. Relays with high current ratings take these transients more effectively, as they are designed with thicker, more durable conductive materials. Electronic ballast photocontrols with high inrush currents require higher rated relays than what is suggested when considering the steady state current.

2. Implement predictive load transfer switching techniques (cost-effective approach)

The inrush current exposure for relay contacts can be minimized with predictive load transfer switching. One technique, called zero crossing, limits the relay current by monitoring the AC supply voltage curve and timing the switching to occur as the AC voltage level passes through zero volts (See Figure 1). This effective technique extends relay contact life without relying on the rated contact current or the quality of the manufacturer, thus providing a more compact and cost-effective design.

Figure 1: Zero crossing turn-on waveform

LED Control Figure

3. Use photocontrols with solid-state switches (costlier approach)

Semiconductors such as triacs, SCRs, bipolar transistors and MOSFETs may directly switch loads. All are reliable, simple to control, and successfully handle high inrush currents. However, because of their voltage drop (‘on’ resistance), they ineffectively conduct electrical currents for an extended amount of time, generating unwanted heat. Methods to remove this heat increase the size and cost of the control.

4. Use a hybrid solid-state/relay switch design(costly approach)

The use of a hybrid semiconductor relay assisted circuit has proved effective in mitigating the heat rise issue with solid-state switching. However, costs are increased due to a higher component count. This circuit initially switches the load via the semiconductor to tolerate the inrush current, then transfers the current to a relay contact for reduced thermal operation.

Reliable photocontrols performance ratings

Contractors beware. Some manufacturers claim controls are “LED compatible,” but those terms don’t describe the actual performance of the controls over the lifetime of the LED fixture. The importance of supplying electrical contractors with reliable information on photocontrols performance motivated Intermatic to develop a comprehensive testing approach. This provides electrical contractors and distributors with explicit and tested information on the performance of the Intermatic lighting control portfolio with LED lighting to help them make informed decisions.  

Read the Rest of the Series:
- The Impact of Arc Flash Events on Photocontrol Longevity in LED Lighting - Part 1
- The Impact of Arc Flash Events on Photocontrol Longevity in LED Lighting - Part 2



Source: Intermatic Incorporated, 7777 Winn Road, Spring Grove, IL 60081; 815-675-2321; www.intermatic.com/zerocross. Intermatic’s new line of electronic photocontrols for LED applications successfully utilizes zero crossing techniques to suppress inrush current impact and deliver on the extended lifespan of LED luminaires. As a result, Intermatic offers cost-effective, 8 to 12 year warrantied electronic photocontrols, while providing large inrush current carrying capacities. Lab testing shows the visible reduction of inrush current, which Intermatic has captured on video.

Changing Scene

  • Prev
This biennial event hosted by the Canadian Apprenticeship Forum (CAF-FCA) from May 29-31 in Halifax ...
Bartle & Gibson Co. Ltd., a Western Canada-based premier plumbing, heating and electrical ...
Supporting the company’s commitment to be a leader in sustainability, Southwire is collaborating ...
Premise LED Inc. is a Canadian based lighting manufacturer and market leader dedicated to supplying ...
Three accomplished women with diverse backgrounds are the newest members of Ontario Power ...
EngWorks Inc and the Electrical Contractors Association of BC (ECABC) forged an alliance this past ...
The Nova Scotia Apprenticeship Agency (the Agency or NSAA) Statistics Report is published annually ...
The Electrical Safety Authority (ESA) recently held its Annual Meeting and Ontario Electrical ...
 Canada’s National Electrical Trade Council (NETCO) is pleased to announce that IDEAL ...
The Government of Saskatchewan is engaging the public to help ensure health and safety legislation ...


ment Act

 

EDA DEIJoin the EDA on November 25 from 8:45 a.m. – 3:30 p.m. for a full day of content and networking.

Suzanna Zagar, CEO of the Ontario Energy Board will kick-off the day as our opening keynote. She will be followed by panel discussions on Combatting Systemic Racism and Overcoming Unconscious Bias. The afternoon will feature presentations on social impact and how technology is driving community value. The day will close with a panel discussion on how leadership can change the diversity conversation.

 


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

 


 



 

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.”

 

Read More


 

 

David GordonBy David Gordon

This summer EiKO is launching its Z10 product offering. I know, what is Z10 other than the sports cars some of us remember (’69 Z10 Camaro or a 2009 BMW Z10, but let’s go with an American muscle car!)?

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).
Read More


 

Product News

  • Prev
Introducing L3DOT series, a miniature linear making it the perfect aesthetic choice that delivers ...
AGILITY was created with the customer in mind, offering high value, technologically advanced, ...
Hammond's Manufacturing new galvanized wiring trough is designed for use to protect multiple wiring ...
EasyHeat™ RG Cable prevents costly damage to roofs caused by ice formation and snow accumulation in ...
Hammond Manufacturing's new splitter troughs are designed for distribution of up to 600 A (max) ...
The Stanpro RMTB series of self-luminous running man signs provide reliable signage for ...
IOTA® IIS 125 Inverters are now UL 924 Listed for both United States and Canada. IIS 125 ...
Hammond Manufacuring's new stainless steel splitter boxes are designed for distribution of up ...
The Schneider Electric (Lithium-ion) battery solution for three-phase UPSs is a high-value, ...
The SLC-MIV pure sine wave inverter represents a unique approach to power failure lighting ...

 

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.

The cable jacket stripping tool is not only compatible with all MILWAUKEE® bushings but is also compatible with competitive quick-change bushings.

 

Read More


 

 

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).

 

Read More


 

 

EarthTronics 25-Watt Emergency Driver for Linear HighbayEarthTronics LED emergency drivers regulate the power supplied to the LED fixture so that it can operate as a light source in the event of a power failure. The purpose of emergency lighting is to ensure that lighting is provided promptly, automatically and for a suitable time when the normal power supply fails.

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.

Read More


 

Peers & Profiles

  • Prev
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. ...
As a 34-year-old female owner of an electrical contracting business, Danielle Gray may be unique. ...
Mark Klein is Co-President of Klein Tools, managing Sales & Marketing activities, alongside ...


EngWorksBy Blake Marchand

EngWorks was formed in 2004 as an electrical engineering and consulting firm by Allan Bozek, “After a short time we realized there was a niche in hazardous locations, in particular in hazardous area classification design requirements for various facilities. And also helping people understand just how the Canadian Electrical Code applies to hazardous locations.”

Given the complexity of hazardous locations, Bozek saw a need for education while working in the field and began developing training courses designed.

Read More


 

 

Eric TordjmanBy Blake Marchand

Headquartered in Concord, Ontario, Mercury Lighting services national retail, multi-residential/commercial property management, energy service companies (ESCO), and auto dealerships. “From design to specifications, we offer turn-key services that go beyond the typical distributor model,” explained Mercury Lighting Vice President, Eric Tordjman. Their value-added approach leverages well-established supplier relations to help clients find a lighting solution that suits their needs.

“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...

Read More


 

Éric DeschênesBy Line Goyette

As the head of ABB Canada's electrification business unit, Éric Deschênes is no newcomer to the electrical industry. He has a long track record and a passion for finding practical solutions to optimize technology adoption. Deschênes took on his current role with ABB January of 2020, he joined ABB in 2017 as Executive VP of the Electrification business after 15 years with Schneider Electric.

We met with him recently to discuss his new role at the helm of ABB Canada and his plans moving forward. He began by pointing out that the recent change to ABB Canada's structure, as elsewhere in the world, was made to make customer relations more straightforward. 

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