I am looking for some regulation that says that the Building Emergency Maps needs to have a Legend, North Sign, Description of Markings, Delete unnecessary objects on the map that is not related to the Emergency Evacuation routes.
I have a 32X36 Shop with two overhead garage doors and two man doors. I want to use the space in front of one of the man doors, do I have enough room to have only one posted emergency exit. Normally there is four employees or less working in the shop. The chance of having a fire is very low.
Hi Corry, What is your occupancy classification? What type of work is performed in the shop? Is the shop a freestanding building or just a section of a larger building? Does the shop have sprinkler protection? What is the furthest travel distance from the most remote point in the shop to the single exit? Are there ever times when more than…
Is there an accepted or listed method of protecting non-rated glass (tempered) in a rated partition? We have lots of situations where architects want to use glass walls to separate tenant space in multi-tenant offices. These partitions could be either 1 hour or 2 hour rated. We're asked to install a water curtain along the glass wall, but I don't…(Show moreShow less)
Hi Michael, If the architect wants a glass wall why not specify a fire rated product such as FireLite, Pyran, Pyrostop, or equivalent? Another viable way of protecting non-rated glazings is to use a sliding door such as Won-Door or equivalent.
Residential PV disconnect requirements I have a 4 wire 120/240 do I need a 2 pole or a 3 pole disconnect switch one person told me that I needed a 3 pole and run the neutral through the disconnect switch.Is that NEC code?
Based on NFPA 24 maximum leakage per 100 joints is 2 quatz per hour or 0.5 gallon per hour. The standard requires the water and the pressure to be replenished within ten minutes or 1 gpm whichever is larger
Good morning. Usually, a good practice in industry for new underground systems or systems under the maximum allowable underground leakage (and NFPA 20 Handbook recommendation, 2013 Edition) is that Jockey Pump will supply 1% of the main pump rated capacity (gallons) and add 10 psi to the pressure rating of the fire pump. For instance: A…
Hi Roland, in case Steve´s response did not answer you doubt; An arc rated face shield means that the manufacturer should have tested the face shield according to ASTM F2178 and rated it accordingly to the ATPV cal/cm2 resistance/protection.
Was told by DuPage County in Illinois they require all low voltage wiring to be in pipe or raceway per Nec code for 2014 and 2017. As far as I know it does not. Especially speaker wire, cat6, cat5 and RG6(coax) which is class 2 and class 3. Is this fact or fiction. Any help would be appreciated.
DuPage County has their own amendments to the NEC and creates a new Article 391 Low Voltage Systems. ARTICLE 391. LOW VOLTAGE SYSTEMS a. Subsection 391.1, "Scope," of Section 391, "Low Voltage Systems," is added to read as follows: 391.1 "Scope," This article covers all low voltage wire systems. Exception: Burglar alarm systems and…