Canadian Electrical Industry News Week

October 3, 2018

LumensThis article is an excerpt from a technical brief, “Understanding LM-80, Lumen Maintenance, and LED Fixture Lifetime,” by Philips Color Kinetics.

Test results of lumen maintenance in conventional and LED light sources differ considerably. This is known as the lumen maintenance gap. These tests are performed to determine the useful life of a light source. But how do we compare lighting technologies satisfactorily if test results of a same designation do not mean the same thing? These lumen maintenance measurement distinctions are those we will examine in this article, as a clear understanding of this gap will have a significant impact on the installation, maintenance and replacement cost calculations of lighting products.

As an example of the benefits offered by lumen maintenance, the World Market Center in Las Vegas, Nevada (shown in photo), uses over 8,000 ft (2,438.4 m) of eW Cove Powercore linear LED lighting fixtures from Philips Color Kinetics to illuminate the complex geometries of the atrium in one of its buildings. LED cove lighting offers advantages over conventional cove lights in high-end installations such as this one. With useful life of up to 70,000 hours, and a very low failure rate, LED cove lights virtually guarantee reliable illumination around the clock for many years, without dark spots from lamp outages that can mar the elegant and uniform presentation of a premier space.

Lumen maintenance of LED and traditional light sources

When controlled, LED light sources can have a useful life that lasts considerably longer than the rated life of a conventional lighting source. Here’s an example: the World Market Center in Las Vegas, Nevada (shown in photo) uses over 8,000 ft (2,438.4 m) of eW Cove Powercore linear LED lighting fixtures from Philips Color Kinetics to illuminate the complex geometries of the atrium in one of its buildings. LED cove lighting offers advantages over conventional cove lights in high-end installations such as this one. With useful life of up to 70,000 hours, and a very low failure rate, LED cove lights virtually guarantee reliable illumination around the clock for many years, without dark spots from lamp outages that can mar the elegant and uniform presentation of a premier space.

The following table presents comparative data for the typical useful life range of various light sources.

Testing conventional light sources

LM-65-14 is a document that defines life testing procedures for compact fluorescent lamps (CFLs), while LM-49-12 defines life testing procedures for incandescent filament lamps. Both publications establish testing conditions, testing sample sizes, and valuation methods used for generalizing test data.

For CFLs, LM-65 specifies that a statistically valid sample be tested at an ambient temperature varying between 15⁰C and 40⁰C, in a cycle of three hours on and 20 minutes off (CFL life is appreciably shortened by the frequency with which the lamp is turned on and off). The point at which half the lamps fail is the rated average life for that lamp.

For incandescent filament lamps, LM-49 stipulates that a statistically valid sample be tested within the manufacturer’s stated operating temperature range and voltage. Lamps are turned off and allowed to cool to ambient temperature once a day (usually for 15 to 30 minutes). As with CFLs, rated life for incandescent filament lamps is the total operating time at which half the lamps cease to operate.

Lumen 2Testing conventional LED sources

As of 2014, the technical publication entitled LM-84-14 was introduced as a means to fill a gap created by the lack of standardized LED fixtures and lamps testing methods. Even today, the rated life is calculated according to tests performed on lighting system diodes and not on the overall lamp or fixture system. Unfortunately, at this point, the LM-84 publication has disclosed only light system test parameters and is unable to provide other calculation methodology to issue results that might establish a specific rated life.

Many fixture manufacturers develop their individual interpretation of the life test results and establish in their own way the useful life of light sources. Often, they do not share the extrapolation or evaluation methods, so any comparison between the products of various manufacturers becomes both difficult and imprecise.
Lumen 3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Useful life is not fixture lifetime

It’s important to keep in mind that useful life and fixture lifetime are two very different things. The useful life of a fixture refers to the lumen maintenance projections of the LED sources integrated into that fixture — in plain English, the number of hours an LED lighting fixture will deliver a sufficient amount of light in a given application.

Fixture lifetime, on the other hand, has to do with the reliability of the components of an LED lighting fixture as a system, including the electronics, materials, housing, wiring, connectors, seals, and so on. The entire system lasts only as long as the critical component with the shortest life, whether that critical component is a weather seal, an optical element, an LED, or something else. From this point of view, LED light sources are simply one critical component among many, although they are often the most reliable component of the whole lighting system.

Read the full document here: www.colorkinetics.com/Learn/docs/LEDLifetime.pdf

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ABB RoboticsABB Robotics is driving automation in the construction industry with new robotic automation solutions to address key challenges, including the need for more affordable and environmentally friendly housing and to reduce the environmental impact of construction, amidst a labor and skills shortage.

Robotic automation offers huge potential to enhance productivity, efficiency and manufacturing flexibility throughout the construction industry, including automating the fabrication of modular homes and building components off-site, robotic welding and material handling on building sites and robot 3D printing of houses and customized structures. 



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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

 


 

Smart GridHarnessing Canada’s immense clean energy resources requires transformational investments to modernize our electricity grid. The Government of Canada is investing in renewable energy and upgrading the electricity grid to make clean, affordable electricity options more accessible in communities across Canada.

The Honourable Seamus O’Regan Jr., Minister of Natural Resources, today launched a $964-million program to support smart renewable energy and grid modernization projects that will lower emissions by investing in clean energy technologies, like wind, solar, storage, hydro, geothermal and tidal.

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Trilliant Partners with the City of CowansvilleThe City of Cowansville in south-central Quebec is the largest city in the Brome-Missisquoi region, with more than 15,000 residents. Despite being a smaller-sized city, it is known as an economic and industrial hub.

It also has a strong focus on innovation and efficiency — as demonstrated by decisions such as the one it made in 2017 to use beet juice to help combat icy winter roads, allowing the City to reduce the amount of salt it was using, thereby saving money and decreasing the impact on the environment. 

 

 

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Keith SonesBy Keith Sones

The writing was on the wall.  The closures would happen. But a lot of people were upset, and I was one of them. 

In the early 2000s, my family and I were living in a mainly rural (at least by city dweller standards) valley in south central British Columbia.  The West Kootenay region is known for its diverse outdoor recreation activities and as a great place to raise a family.  It has a proud industrial history, evidenced through the longstanding pulp mill, a massive lead zinc smelter a few miles away and several hydroelectric dams, all of it within spitting distance of the mighty Columbia River. 

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The Lumenquad Small and Medium are the latest additions to a family of sleek, elegant, high-performance projectors that has already been validated with honours, including recognition in the PIA Awards in 2019, together with a Lux Awards for Exterior Luminaire of the Year in 2019. 

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Wiha Lineman's Pliers and CrimpersWiha Insulated SoftFinish® Cushion Grip Pliers and Cutters are the standard for premium quality featuring ergonomic cushion grip handles for comfort and control, dual durometer construction for long-lasting durability, and handles directly molded to the tool steel for a permanent bond.

The grips feature a slip guard handle design for added protection at the front-end and raised rear-finger steps for easy opening at the back-end. Wiha Insulated SoftFinish® Cushion Grip Pliers and Cutters consist of premium quality tool steel for strength and durability and induction hardened cutting edges and jaws for superior sharpness and longevity. 

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eLumigen Poultry Lamps - 2000K, 3000K & 5000KIdeal for rough service applications, the A19 & PAR Series are engineered for high efficiency, vibration resistance, shatter-resistance, elevated heat environments, and wet locations. These dimmable LED Lamps help reduce energy costs, labor costs, and the headaches of frequent lamp changes in tough applications.

eLumigen employs a unique 21-point validation process that goes above and beyond industry standards. Our lamps have been tested to survive levels of vibration exceeding 20G forces. Our unique temperature foldback design improves both safety and thermal management of our lamps. 

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House of Electrical SuppliesFrom small construction to sophisticated industrial projects, House of Electrical Supplies has been servicing clients in the industrial, OEM, entertainment, and construction markets across the Greater Toronto Area for just over 40 years. The company has earned a reputation for providing a high-quality customer experience.

As per President Austin Brennan, their experienced and knowledgeable team can be depended upon in any situation to deliver quick and efficient service. On top of their product solutions — ranging from electrical, automation, safety, lighting and portable power distribution — 

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