Firestopping Telecommunication Cables: Problems or Profits?
In today’s sluggish economy, there is a segment of the low voltage industry that is booming. Security has become a priority in the United States. A critical aspect of security…
Hospital Crisis: How We Got into the Firestopping Business
The Cable Installer Must Reseal the Firewall There are safety codes that must be followed when dealing with cable installations and physical fire barriers (firewalls). Firestopping rated firewalls after cable…
Cable Tray Penetrations: Problem Solved!
After a 25-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…
Do I Need Packing Along with the Intumescent Putty?
Packing (eliminated for 1 or 2 hr. Systems) Listings with 3-M, Hilti, Rectorseal and Nelsons all require a minimum of 1 inch of mineral wool batt insulation, packed tightly, into…
What do the UL Systems Acronyms Stand For?
The first letter of the listing designation identifies the type of penetrated fire-rated structure: C for both floor and wall penetrations F for floor penetrations only W for wall penetrations…