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ahmed elgazar
moke system activation, signal to  activte  smoke system  cab sent from  smoke detector  of  water flow  switch  in  sprinkler system  i ask  about  case that recommended used onley water flow switch  instead of  detectors.
in Fire Protection Systems
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Joe Nelson
NEC 2017 680.26(B) states that conductive pool shells shall be bonded. 680.26(B)(1) states that, "Vinyl liners...shall be considered to be nonconductive materials." Some pool construction methods that utilize nonconductive vinyl liners also utilize a (unreinforced) concrete base (or shell) between native soil and the vinyl liner material. … (Show more)
in Electrical
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Akhil Anand
i would like to know the minimum diameter of pipping allowed for sprinkler system if it is made up of galvanized steel or iron ?
in Fire Protection Systems
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Lisa Braxton
Join NFPA Regional Education Specialist Meredith Hawes (pictured at right) and fire and life safety experts for a discussion on the 2017 Fire Prevention Week theme and how it applies to people who are deaf or hard of hearing. Meredith will be joined by Communications and Marketing Coordinator for Virginia Hands & Voices Valerie Abbott, and J.D.… (Show more)
in Safety Source
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Kyla Caponigro
  Position Title:                              ASSISTANT FIRE MARSHAL I                                                         ASSISTANT FIRE MARSHAL II (Non-Rotational) Full Time Non-Exempt                                                  Job #:                                             CSS 10 – 18 Full time – Open to Public   Department: … (Show more)
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Jennifer Hildebrand
I was recently at a residence where they had two separate and distinct switch boxes stacked on top of each other.  The upper switch box was recently put in by another electrician and the lower switch box has been in use for a few years.  Does this stacking of switches (One on top of the other spaced by approximately 1.5 inches) violate the NEC?… (Show more)
in Electrical
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Steven Dube
Has anyone come across this in a fire investigation:   LONDONDERRY — Officials say a refrigerator is the likely source of a two-alarm garage fire Tuesday evening in Londonderry.   Crews arrived around 5:36 p.m. at 19 Chandler Drive to find a fully involved structure fire in a standalone garage, but the flames had not yet reached the main… (Show more)
in Emergency Response