ESFR
ESFR
(OP)
In 2010 edtion of NFPA 13, it appears ESFR cannot be used on a pre action system.
Anyone know if that has changed. The section in the 2013 edtion is the same wording, but the commentary does not seem the same.
Anyone know if that has changed. The section in the 2013 edtion is the same wording, but the commentary does not seem the same.





RE: ESFR
RE: ESFR
http://www.vikingcorp.com/databook/freezerstorage/...
R M Arsenault Engineering Inc.
www.rmae.ca
RE: ESFR
Interesting system
RE: ESFR
FM scientist developed the ESFR in the 80's at their research lab and wrote the book on the subject in regards to design and installation. This criteria eventually gets pulled into 13 on a lagging basis if enough people raise their hand at meetings.
Also, be wary of PG in systems, jury still out but I believe some testing a few years ago has shown it can be a hazard in certain concentrations.