Lighting and controls : transitioning to the future - download pdf or read online

By Stan Walerczyk CLEP HCLP LC

ISBN-10: 0881736996

ISBN-13: 9780881736991

ISBN-10: 0881737003

ISBN-13: 9780881737004

ISBN-10: 1482236834

ISBN-13: 9781482236835

This ebook is helping you're making reliable lights judgements and may be a really beneficial hands-on software for somebody concerned with engineering, upkeep, paying for, specification, retrofits, remodels, and new building for inside or external lighting fixtures functions. It provides very sensible how you can continue and replace current lighting fixtures structures and the way to devise for the long run. Key issues comprise LED lights, upkeep costs, Read more...

summary: This booklet is helping you are making reliable lighting fixtures judgements and may be a truly helpful hands-on device for somebody concerned with engineering, upkeep, procuring, specification, retrofits, remodels, and new building for inside or external lights purposes. It provides very useful how you can retain and replace current lights platforms and the way to plot for the long run. Key issues comprise LED lighting fixtures, upkeep expenses, attaining low strength density, dangers of LED T8s, and human centric lights

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Additional resources for Lighting and controls : transitioning to the future

Example text

So, it could be lamp A on day one, lamp B on day two, lamp A on day three, etc. Figure 9-1 shows an example. Of commonly available lighting sources, only LED and electronically ballasted CMH are significantly improving. At least one manufacturer is working on developing reduced wattage lamps with the same lumens as existing lamps that can work with existing ballasts. For example, if a 90W CMH lamp and ballast is used now, when that lamp burns out, there may be by then about 45 46 Lighting & Controls: Transitioning to the Future Figure 9-1.

Magnetic ballasts should definitely be eliminated because they are inefficient. Even generic electronic ballasts, the main electronic ballasts over five years ago, should be replaced with equivalent high performance electronic ballasts, saving 3-6 W. Each high performance electronic ballast can save $15-$40 in electricity (depending on KWH rate) over the rated life compared to a generic electronic one, and even more compared to a magnetic one. Ballasts that are 10 or more years old are prime candidates for retrofit projects.

Check light levels about four years after installation, or sooner if lighting seems dim. 4. Then start checking light levels every year or two. 5. When light levels are only about 10-15% above required light levels, note the date and start efforts to get money to retrofit or replace all the fixtures. ) 6. When light levels are close to the minimum allowed, it’s time for the retrofit or replacement to be done. 20 Lighting & Controls: Transitioning to the Future Maintenance is also an important concern in non-critical areas such as offices and classrooms.

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Lighting and controls : transitioning to the future by Stan Walerczyk CLEP HCLP LC

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