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Whether you're interested in new constructon, retrofitting, or a completely custom solution, we can help. We'll give you advice, help you navigate your options and even show you how much you can save. All you have to do is ask...
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Friday, October 17, 2008 |
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Every so often we get an "Ask an Engineer" question whose answer could benefit other Precision-Lighting customers. We've decided to start posting those answers here. Enjoy.
"Hot Shock"
The Question
"How robust are the [Precision-Lighting TMD Series LED] fixtures? [...] We are dealing with lots of "hot shock" now with current fixtures and they are having to replace those bulbs constantly?"
The Answer
Hot shocking is the result of an impact. For loading dock lights, this is usually the result of a forklift hitting the dock lights.
When an incandescent lamp is positioned close enough to direct impact, the filament will stretch, uncoil, tangle or break due to its inertia during impact. This condition is known as hot shock.
The TMD is a solid-state LED loading dock light which has no filament to burn out or break. This eliminates the frequent lamp replacement requirements of traditional dock lights. As engineers, we never like to see our creations get damaged in any way, but at the same time we understand the real world impacts that loading dock lights see.
The TMD Series of LED loading dock fixtures was designed to meet military shock and vibration standards. I am confident that it is sufficiently robust and will provide not only a great deal of energy savings but also a great deal of maintenance savings by eliminating the concerns of hot shock.
Thank you for thinking of Precision. We look forward to supporting you with your project endeavors.
Sincerely,
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Joe Martin
Vice President of Engineering
Precision-Lighting |
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"Pendant Mounting"
The Question
"Do you have a pendant mounting box option for a fluorescent high bay fixture?"
The Answer
Thank you for submitting your inquiry to Precision-Lighting.
Many contractors in the industry often want a pendant mounting box for fluorescent high bays, and if required we will supply a pendant style box. However, Precision recommends 2 point mounting in addition to the use of a pendant mount box.
The reason for Precision's recommendation lies in NEC Article 314. It states that a luminaire supported by a single conduit cannot exceed 12 inches in any direction, and as you know a 4' long fixture will certainly violate this. Additionally, Precision has had many customers over the years that have struggled to install the fixtures straight because if the pendant is at a slight angle. If this happens, the fixture will be crooked and the final result will be unsatisfactory.
We pride ourselves on craftsmanship and want to help our customers deliver the best result to end users. With all of that being said, Precision will provide a pendant box should you choose to continue to pursue this installation approach, but we would recommend alternate mounting options.
Thank you for your inquiry!
Sincerely,
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Joe Martin
Vice President of Engineering
Precision-Lighting |
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MORE RESOURCESFAQ >>We've put together a list of answers to some of the questions our engineers are most often asked. Glossary >>This is where you can translate lighting engineer talk into something more comprehensible. Technical Info >>Here we've gathered technical information with the potential to help any lighting professional with a project.
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