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nfpa70.pngThe Second Draft Report for NFPA 70, National Electrical Code®, is now available.  NFPA 70 is in the Annual 2016 revision cycle with a deadline to submit a Notice of Intent to Make a Motion (NITMAM) of April 29, 2016.

The Second Draft Report is the second part of the Technical Committee Report, which documents the Comment Stage.  It consists of the Second Draft, Public Comments with corresponding Committee Actions and Committee Statements, Correlating Notes and their respective Committee Statements, Committee Comments, Correlating Revisions, and Ballot Statements.

membrane.jpgWhen marinas need to sand and paint boats, the dust and fumes pose problems. They can spread throughout the building, bothering people who work in the marina and dirtying other boats.

 

To address that, marinas often build what’s known as a membrane enclosure: a metal scaffolding structure surrounding the boat, which is then covered in plastic shrink wrap. Solves the problem, right? Well…

 

The bigger problem is, using these membrane enclosures inside sprinklered buildings presents some serious fire safety hazards, the March/April NFPA Journal reports. The concern is that they could delay sprinkler activation in the event of a fire. Water may not be able to penetrate the enclosure.

 

There are at least two code implications. Membrane enclosures are not compatible with NFPA 33, Spray Application Using Flammable or Combustible Materials, or NFPA 13, Installation of Sprinkler Systems.

 

The marine industry isn’t alone. Many other industries do similar spray applications inside enclosed structures, including aircraft facilities and hydro-electric facilities. Many of the industries, even including marine, have expressed concern about the fact that the practice is not technically allowed by standard.

 

The details are far more complex, but for the full picture, check out Nancy Pearce’s piece, “Wrapped Up,” in our latest journal issue. If your industry uses membrane enclosures, this is a crucial read.

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waldocanyon.png

Construction workers pick up in the aftermath of the 2012 Waldo Canyon Fire in Colorado Springs.

 

In June 2012, the Waldo Canyon Fire tore through the Mountain Shadows neighborhood of Colorado Springs, killing an elderly couple and causing an estimated $454 million in insured losses. It remains one of the most destructive fires in U.S. history—now it is also one of the most-well understood.

 

A new NFPA Journal article, “House to House,” in the “In a Flash” section of the magazine, looks at a groundbreaking 227-page study on the fire conducted by the National Institute of Standards and Technology (NIST).

 

A NIST team spent almost a year in Mountain Shadows conducting about 250 interviews with witnesses and first responders. They cross-referenced those accounts with radio logs, time-stamped photographs, satellite images, and city records to meticulously piece together how the wildfire moved through time and space. In doing so, they tried to determine how factors such as topography, weather, building density, ignition vulnerabilities, and first responder actions affected the fire’s path.

 

Read more about what they learned, and how meticulous, in-depth wildfire investigations could change the way we think about fire behavior, in the all new NFPA Journal.

 

http://www.nfpa.org/newsandpublications/nfpa-journal/2016/march-april-2016?order_src=D643Also in this month’s “In a Flash”:

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Receive the print edition of NFPA Journal and browse online member-only archives as part of your NFPA membership. Learn more about the many benefits and join today.

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