It is understood that 1600 kv oil type transformer is considered high hazard but I can’t find code reference for fire protection system requirements. The transformer room is part of building structure. NFPA 70 required minimum 3 hour fire rated enclosure and permitted to reduce it to 1 hour if the room provided with automatic sprinkler, water… Show more
You’ll sometimes hear users of the Life Safety Code refer to hazardous areas, protection from hazards, special hazards, and other variations on the same theme. So what exactly is a hazardous area and what sort of protection does it need? The answer, as in the majority of cases when we’re talking about codes, is: “It depends.” Remember that NFPA… Show more
The Second Draft Reports for NFPA Standards in the Fall 2020 revision cycle are available with a deadline to submit a Notice of Intent to Make a Motion (NITMAM) of August 27, 2020. These proposed NFPA Standards with Second Draft Reports in the Fall 2020 revision cycle are as follows: NFPA 11, Standard for Low-, Medium-, and High-Expansion… Show more
USAA members who carry homeowners insurance policies in Idaho, Montana, Washington, and Wyoming join their counterparts in seven other states where living in a recognized Firewise USA site makes them eligible for an insurance premium discount. **UPDATE July 28, 2020** According to USAA, there has been an unforeseen delay in the effective date… Show more
Hello experts. I am new to the field. I am involved in the general safety in a laboratory setting. I want to understand what is the difference between a regular lab exhaust system and a hazardous exhaust system. Can a chemical fume hood be connected to a regular lab exhaust system ? Thank you.
hello Patricia. my understanding is there are several types and they each have different purpose and conditions for safe use. the best references would be ASHRAE Laboratory Design Guidelines or ANSI/AIHA/ASSE Z9.5-2012 Laboratory Ventilation. but basically you have: laminar flow hood ("clean bench") - provides clean air into an enclosed hood…
NFPA 13R Expert Required I have a project that requires an expert in the implementation details NFPA 13R compliant water-based fire sprinkler systems installed in the attics of condominiums and apartments. Complying with the requirement that attics having these systems installed be maintained at 40 degrees F or above or apply an insulated tent… Show more
The SFPE Handbook and various vendors advise that subsurface injection of foam is not recommended for internal, floating roof tanks. Are there any studies or incidents that support this position? Thanks