Cable tray fire wall penetration

After a year career in the cabling business, I had the exciting opportunity to develop some mechanical penetration systems for cable installers. During the development of these systems, I was continually amazed by some of the penetrations I encountered in commercials buildings, schools and hospitals. Almost always in evidence were fire stopping problems and issues around cable tray penetrations. Cable trays seemed to run through fire rated barriers with reckless abandon; the holes created by passing the tray through the wall or floor varying in size and shape.
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Firestopping electrical systems

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Cable Tray Penetrations: Problem Solved!

Please note, the order volume has been updated. This is due to package and minimum order quantities. Please note, the order volume has been updated to. How do you maintain the flexibility to adapt to ever-changing infrastructure demands—such as evolving cable penetration configurations in electrical, telecom, datacom and healthcare applications—without compromising firestop ratings or protection against smoke migration?
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Cable Tray Penetrations: Problem Solved!

Firestopping may not be the first thing that comes to mind for an electrical engineer designing a power system. Too often, the solution to firestopping a bank of conduits is left to the architect or contractor. This can lead to costly construction workarounds and delays in getting a building occupancy permit.
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