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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Electrician Forum Brought to you by Schneider Electric

As industry experts you know the products you use everyday better than anyone and should have input on what information you receive about products and what could improve them.

Therefore, we want your insight on the biggest challenges or issues you face when installing loadcentres, breakers (CAFI, GFI's…) and other surge protection devices. We ask that you do not provide product specific details but rather your general issues and concerns or any questions that have come to mind while working with these product types. Provide us with your valued expert insight into the issues you have faced so manufacturers can better inform you about the installation and use of these products. Lets generate some discussion that will help guide the Industry.

Make your comments  HERE

 

CSAClimate change and its associated impacts will play a central role in Canada's electricity future. In fact, the Conference Board of Canada estimates that approximately $347.5 billion will need to be invested in electricity infrastructure to maintain the system reliability we have today. Making smart investments now can improve the system and help to avoid more severe climate related costs in the future.

“The critical infrastructure we rely on to power our daily lives must remain resilient to more damaging and frequent extreme weather events,” says Mary Cianchetti, President of Standards at CSA Group. “Standards play a critical role in making that happen.

Read more about climate change solutions...

 

 

 

BCEA Victoria Trade Show

The BC Electrical Association in conjunction with the Victoria distributors and manufacturers committee on Vancouver Island will be holding a tradeshow and golf tournament on May 2, 2019 at the Westin Bear Mountain Resort.

This will be a table top trade show. Distributors have agreed not to hold their own tradeshow three months on either side of this date to ensure a successful event.

 

 



Read more about the BCEA Victoria Trade Show...

 

 

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EE LightingBy Blake Marchand

Energy Efficient Lighting is a LED lighting manufacturer with nearly 30 years of industry experience. One that was founded on principles of environmental sustainability and responsibility to future generations. Based out of Markham, Ontario, Energy Efficient Lighting are established veterans within the LED lighting industry. And with the prominence of LED lighting being a fairly recent industry trend, it is a claim that a select few can make. They offer complete lighting solutions for commercial and industrial applications. Their product lines include conventional lighting fixtures, LED retrofit kits, complete LED luminaires, LED systems, drivers and electronic ballasts.

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3-Phase Electrical Ltd.By Blake Marchand

Winnipeg-based 3-Phase Electrical prides themselves on the high calibre of work they produce and their attention to detail, always ensuring that all work is performed to the highest possible standards. Their success is attributed to understanding their customers’ needs and continuously exceeding customer expectations.


Their expertise is facilitated by a solid foundation of careful planning and diligent scheduling, both of which are key elements to delivering projects successfully.

Read more about 3-Phase Electrical Ltd....

 

 

HeatingBy Stéphane Lettre

Today the whole planet is talking about climate, reducing the ecological footprint, and energy efficiency. Various governments are making commitments to reduce greenhouse gas emissions and people are becoming more aware of the impact of choices they make on a daily basis. Another phenomenon that is accelerating in parallel is the search for lower costs among households with increasing levels of debt and companies seeking to remain competitive and profitable.



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Copper $US Dollar price per pound


 

EHRCIn a recent interview with the The National Post, Electricity Human Resources Canada CEO Michelle Branigan said the need for workers in Canada’s electricity industry is “extremely critical.”

The industry directly employs almost 107,000 people, but less than 1 in 20 is aged 25 or under, only 1 in 4 is a woman, and just over 1 in 10 is from a visbile minority.

These statistics are from EHRC’s Workforce in Motion, a labour market intelligence research initiative for the years 2017-2022. The research report is a planning and informing tool for a wide range of electricity sector stakeholders and provides critical information to the sector for both short and long term resource planning.

Read More

 

 

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