• The 101 Life Safety code

    I have a suite that exit to the corridor that has smoke doors and are kept close by closers that requires greater then 5 pounds of force. Under 19.3.6.3.5 the statement says this is acceptable. I am being told they ar...
    restafford
    last modified by restafford
  • Powered operator for steel roll-up fire door

    I have an overhead roll-up steel fire door that we want to put a powered operator on.  What are the regulations in NFPA 80 that I need to watch out for?
    bconder
    last modified by bconder
  • NFPA 70, Article 690.31

    I need assistance with interpretation of the following article.  My contractor is using the following Code exception to omit labeling on PV string wires.  Their logic is that each string wire is is pre-fabri...
    tasha_mccarter
    last modified by tasha_mccarter
  • NFPA  70, Art 501.5 (E)

    In NFPA 70, Article 501.5(E), 1 For a Class I Division 2, Terminations - it says cables entering an enclosure required to be explosion proof shall be sealed at the point of entry.   A squirrel cage induction mot...
    dnowicki
    last modified by dnowicki
  • Commercial Outlets

    Can someone point me to the specific section of the NFPA 70 that requires 120V outlets in commercial applications to be upside down (with the ground mounted upward)?  The usual answer I get from electricians is s...
    fahrquad
    last modified by fahrquad
  • New Emergency disconnect question

    I just recently installed an UG meter socket and came into a home laterally to (2) 200 amp main breaker panels.  My permit was pulled after 1/1/2020 so I totally understand the new code enforcement of having an ...
    joepeltier99
    last modified by joepeltier99
  • Relocatable Power Taps

    Hi all. I keep going down the RPT rabbit hole after reviewing NFPA 1, UL 1363, UL White Book, and OSHA. I have come to the conclusion the NEC is silent on RPTs. All the references above seems to say hey, yup...
    carl.mister
    last modified by carl.mister
  • NFPA 13D PEX

    Does  2019 13D 5.2.2.4 mean that PEX is not allowed to be used if a house has an FDC? The local AHJ requires FDC's on single family homes, and I'm wondering if I am allowed to use PEX if the manufacturer gives me...
    mountainfireprotection1
    last modified by mountainfireprotection1
  • Are there any fire resistance rating requirements for steel structure supporting equipment on building roof in NFPA?

    The below section is Polypropylene Extrusion Building in Petrochemical Processing Plant. As I understand NFPA 5000 Table 7.4.1, Construction Type II-222 can be applied for this industrial building by the building heig...
    jhpark0325
    last modified by jhpark0325
  • Institutional Occupancy 1 hour partitions -75'SBC

    I am trying to understand the life safety requirements of an old legacy hospital at the time it was constructed. I have found references in the 1963 and 75' Southern Standard Building Code (SBC) requiring the Institut...
    steve.verner
    last modified by steve.verner
  • how to protect an oil deposit?

    I must protect a structure where there are almost 20,000 liters of oil. This product is inside metal tanks (200 liters each) and plastic containers (5.000 litres each). I am using NFPA 11 2016 edition, but I cannot i...
    gustavocanizzo
    last modified by gustavocanizzo
  • Learn key wildfire risk reduction skills: valuable training in Las Vegas March 12-13

    Register now for NFPA's Assessing Structure Ignition Potential from Wildfire two-day classroom training in Las Vegas, Nevada, on March 12-13. This class will provide valuable skills and knowledge to help you in y...
    michelesteinberg
    last modified by michelesteinberg
  • I am looking for up to date NFPA standards and training on UTV(side by side) operator training and policies

    In my organization we use side by side off road vehicles(UTVs) for all hazards response coverage during special events at city parks, venues, festivals, concerts, etc., in our urban areas.  We have zero trai...
    tyler_yarbrough
    last modified by tyler_yarbrough
  • Sulphur conveying system

    Hi I have been working in 1 project about conveying system for Sulphur in Sulphonation plant. I have been checking for some information about assessment due to combustible dust / flameable gas due to this work. I ...
    nfpaunilev
    last modified by nfpaunilev
  • Sprinkler heads on both sides of obstruction?

    I work at a healthcare facility whose kitchen has an unusual sprinkler head set up. 7 feet from a sprinkler head, there's an enclosed duct that drops down 1 foot and is 18" wide. 6 inches beyond the edge of the ...
    rweinschneider
    last modified by rweinschneider
  • Manual release requirements as per NFPA2001

    Dear, everyone! According to NFPA2001 clause 4.3.3.6.2 (please see as follows), i understand that once we operate the manual control, the whole system will working forward completely. But i have the two que...
    zhangya
    last modified by zhangya
  • Creche in a business occupancy - Fire compartment

    Hi, we are converting a part of business occupancy in a creche. The egress path of creche also passing through the business occupancy seating area. Is there fire separation is required as per mixed occupancy classific...
  • Hydraulic Calculation for Private Network, Tank Size

    Hi,   I have a private fire network with fire tank, which has set of buildings not exceeding 2 floors (21 meters), we have combined fire network with manual hose cabinets and automatic sprinkler system in buildi...
  • Differences between NFPA 1852 and 1981

    I have been tasked with finding the NFPA standard that was in effect when we purchased our departments air packs  that we are currently using. They were purchased in ??? I need to know what the NFPA standard was ...
    ztompkins2241
    last modified by ztompkins2241
  • NFPA 13 - Concealed spaces

    NFPA 2013 Section 8.15.1.2.2 - uses the term limited access. Is there a definition for "limited access" or is left up to interpretation by the AHJ?   Thanks
    ctriming
    last modified by ctriming