• Pump room sprinklers

    In a fully sprinklered building, is it the intent of the code not to have to sprinkler a pump room housing an electrical driven fire pump when the total encloser is 2hour rated?
    last modified by maryd
  • Nonrechargeable (nonrefillable) extinguisher

    NFPA-10 mentions Nonrechargeable (nonrefillable) fire extinguishers by definition and states they are excluded from the 6 year test with a lifespan of 12 years.  Are they allowed by NFPA code in a commercial offi...
    last modified by apsdan
  • Transformer Secondary conductor - Overcurrent Protection

    Requirement (2) Transformer Secondary Conductors Not over 3m (10 ft) Long and Requirement (3)Industrial Installation Secondary Conductors Not Over 7.5 m (25ft) Long. We have fulfilled the sub-clauses but which require...
    last modified by cl_yeoh
  • Is Sprinkler required in Pump Room or Not?

    There is one 4 storied building using as garments factory. The building is protected with Fire Hydrant System.  My question is:  1. The pump room is outside of the main factory building and the pump room i...
    last modified by arifur_liton
  • Funcionamiento de las conexiones de manguera

    Según la norma NFPA 14-2019: y 7.8.1, en un sistema clase I los límites de la presión residual deben estar entre 100 y 175 psi. ¿Para dar cumplimiento a lo anterior, la válvula...
    last modified by jihenaog
  • Is it advisable to dress or clamping in ( LT 415V) charged cable?

    LT 15V Cables are already laid and charged in Ladder type cable trays. Is it advisable to dress or clamp the cables in charged condition? Will it be safe? What precaution is to be taken?
    last modified by vannamani.a
  • Colorado wildfires break records, and it's not over yet

      Even as wildfire weather conditions continue to plague parts of California, October has seen wildfire activity erupt across Colorado. In recent days, fires that have been burning in more remote areas of northw...
    last modified by michelesteinberg
  • Utah Family Service Project Reveals Value of Home Fire Sprinkler Protection Through Collaboration and Community Partnerships

    One of the best ways we know of to improve fire safety outcomes is in preparing ahead for emergencies before they happen. And whenever there is the possibility to collaborate with others toward that goal, the more opp...
    last modified by cthompson
  • POTS line will not “kiss off” at the monitoring point

    I’m told that our Buildings Fire Alarm system has trouble communicating with the Central Monitoring Station (CMS). The problem description I was given is, “the POTS line will not “kiss-off” at ...
    last modified by tmulanix
  • Local Utah Fire Department Service Project Reminds Us About the Value of Collaboration and the Importance of Safety During Fire Prevention Week and Beyond

    Earlier this month, NFPA learned about a local service project that embodies the true spirit of collaboration as it relates to fire and life safety. The story takes place in Draper, Utah where the Drape...
    last modified by lisamariesinatra
  • Face-to-face Education Programs are Rapidly Becoming a Thing of the Past. Now What?

    Jennifer Froehlich, fire & life safety educator from Grand Traverse Metro Fire Department, Michigan displays her virtual learning environment with tools she learned from a recent workshop delivered by Brene Duggin...
    last modified by avastis
  • Ethanol in brewing

    I help a mid-size craft brewery. They are beginning to make ready-to-drink canned cocktails using 98% ethanol. They will be using 275 gallon IBC totes. Mostly just bringing totes in when they will be making a batch ru...
    last modified by tboardley
  • NFPA DiRECT Situational Navigation the Subject of Latest NFPA LiNK Digital Platform Video Series

    As you may know, NFPA launched NFPA LiNK last month. It’s an exciting new digital platform that provides code information and supplementary content for professionals and practitioners like you who need to better...
    last modified by kspencer
  • Neutral to earth voltage is high.

    We are facing a peculier problem of Neutral to Earth voltage high.   2MVA Transformer 11KV/0.433KV , Dry type transformer is installed with LT drives.   When Drives are running in Regenerative Mode Neutral...
    created by vannamani.a
  • Ensuring the Operation of Your Fire Alarm System During Loss of Primary Power

    We rely on a fire alarm system to constantly monitor for hazardous conditions (such as fire, smoke, carbon monoxide, and even combustible and toxic vapors) within a building, and notify the occupants so they can exit ...
    last modified by smahoney
  • Can fire drills Include 2 shifts at once?

    Can I conduct a fire drill that includes 2 shifts at one time? As a Skilled Nursing Facility in Northern California, we must have 1 fire drill per shift per quarter. Can I conduct one fire drill for more than one shif...
    last modified by abeum

    Hi everyone,    After going through the chap17 in NFPA13, i could not confirm nor deny the use of RIGID SUPPORTS instead of conventional hangers to support the main and secondary collector.    th...
    last modified by haythem.mbarek
  • Nitrogen in a Wet System

    A vent is required in a sprinkler system at a high point to allow trapped air to be exhausted from the system, thus having less oxygen for the metal piping to react with. Thinking "out of the box" here, would it be he...
    last modified by fm4802
  • NFPA 96, Section 7.8.3

    Hi NFPA 96 requests a non combustible wall for grease duct termination in  7.8.3 (1): "7.8.3 Wall Terminations. Wall terminations shall be arranged with or provided with the following properties: (1) The termin...
    last modified by hassan.zm41
  • Main Bonding Jumper Location and Main service Disconnect Residential

    Hey guys,  I'm doing a 3600 sq ft residential job where there is 1800 up and almost 1800 finished basement. The homeowner wants the panel located in the utility room in the basement which is 35' (cable length) aw...
    last modified by jeff_schirmer