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William Marino
 Where in the NEC is it clearly stated how many extension rings can be added to an existing box.  I've looked for this in article 314 but cannot find it clearly defined. I know that past practice is not to use more than one extension box.  I've recently encountered some newer installations that have two and three extension rings added to existing … (Show more)
in Code Enforcement
Steven Hebert
The code for chimneys for gas fireplaces says the chimney going floor to floor over 4 stories must be in a two hour wall. What about horizontal? When the vent leaves the fireplace and connects to the riser the code does not spell out if the horizontal portion has to be rated. I know fire wrap is not legal is there any other wrap that is? Also the… (Show more)
in Code Enforcement
Derek Gribulis
I was wondering if anyone else has come across this issue.  I have a building that is 60 feet tall except the elevator penthouse is 67 feet tall  According to the building code, I can use an NFPA 13R sprinkler system.  The Building code official has come back with a comment that in the 2013 NFPA 13R code book section 1.1 states that a building… (Show more)
in Code Enforcement
Bob Allingham
According to NFPA 58, the minimum clearance for a relief valve to a source of ignition is 5 ft for an exchange cylinder, and 10 ft for a tank filled on site. It was always my understanding that if a cylinder that COULD be filled on site was swapped for an exchange cylinder, the 5 foot rule no longer applies and must be 10 ft. I really need an… (Show more)
in Code Enforcement
Anantha Krishnan
We have a newly installed wet sprinkler  system . The sprinklers has been installed before hydro test and flushing. The client is asking to remove the sprinklers citing NFPA. is it anywhere mentioned in NFPA ? If so pls mention the clause . 
in Code Enforcement
Aaron Lewin
Does A EPS need battery powered emergency lighting
in Code Enforcement
Thomas Bisanti
My name is Tom Bisanti and I am the VP of Sales For Bogen Communications Inc.  In March of 2018 i am planning a sales meeting at our Orlando offices and would like to hire a speaker with an NFPA background (possibly a NICET 3 or 4) to address our group for about 3 hours and educate us in sales as to how NFPA 72 affects us in our world.  i would… (Show more)
in Code Enforcement
Joel Ray
What does NFPA 13 2007 mean in Section by "outside sprinklers?"  What are outside sprinkler? 
in Code Enforcement
Kelly Short
Tapping a building transformer's secondary conductors or bus bar to add a BESS.  The system is 12kV and is a campus with distribution transformers throughout the facility.  A BESS is being installed on the secondary of one of the building's 1MVA transformers.  The "tap" would originate in the buildings main switchboard which is fed from the 1MVA… (Show more)
in Code Enforcement
Felipe Gonzalez
I´ve searched for minimum water suppy for private hydrant in NFPA24, but it´s not there. Can I consider a private hydrant a Class I standpipe and use 30 minutes for water supply like NFPA14 9.2 indicates? I´m considering 500gpm in both.
in Code Enforcement
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