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. It was as if a different person planned and executed each and every hole — even in the same building, even on the same floor!
System No. C-AJ-4105 Cable tray with cables in solid wall or floor
System No. C-AJ Cable tray with cables in solid wall or floor | ZAPP-ZIMMERMANN GmbH
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