Thanks to you all for FINALLY clearing this issue up. I have chased this rainbow for about 40 years and have never been able to find the restriction in any code and thought I could challenge it, but alas, my customers failed to follow me and said just do what makes them happy. And we are still doing just that, making them happy. It seems once one AHJ gets away with it, (with all due respect to AHJ's) it becomes law.
Lamar Vaughn, SET On Fri, Oct 30, 2015 at 2:49 PM, rongreenman . <rongreen...@gmail.com> wrote: > Craig, > > This then is a right of way issue feather than the wraith of water and > electricity not mixing. I had a similar problem with electrical engineers > (CoE) at some powerhouses when my colleague and I suggested using water in > the generator heads. The collective gasp sucked so much oxygen out of the > room I was afraid I'd faint. "That would ruin the generator" was the > consensus amongst them. We suggested the fire was ruining the generator and > the issue was not if there was ruin but how much acceptable. Rewind and > rewire was a given, but replacing the potentially warped metal parts if the > existing CO2 system failed...? But always a good idea to not be making > toast on the side of the tub when you're in it. > > On Fri, Oct 30, 2015 at 6:17 AM, <craig.pr...@ch2m.com> wrote: > > > There is no restriction on sprinkler piping passing through electrical > > rooms as they state. There is no wording in the code to that effect at > > all. Your Main can run through the room if need be. > > > > There are however two spaces or zones within an electrical room that are > > sacred, one being the Working Space and the other being the Dedicated > > Electrical Space. > > > > The Working Space (NFPA 70 110.26(A) is the area directly in front of the > > equipment starting at the face of the equipment and extending outward > from > > 3 ft up to 4 ft depending on the voltage-to-ground value and the space > > extends from the floor to a height of 6'-6" or height equal to the top of > > the piece of equipment. In some cases the working space may be zero > > depending on if there is a requirement to access the internals of the > > unit. The width of the space is equal to the width of the unit but no > less > > than 30 inches or whatever I necessary to allow the door panels to be > > opened to at least 90 degrees. You wouldn't typically be in this space > > since. > > > > The other space is the Dedicated Electrical Space which is the area equal > > to the width and depth of the equipment and extending from the floor to a > > height of 6 ft above the equipment or to the structure or ceiling, > > whichever is lower and is dedicated to the electrical installation. No > > piping, ducts, leak protection apparatus, or other equipment foreign to > the > > electrical installation shall be located in this zone. This is directly > > above the piece of equipment. So if your pipe is 10 ft above the unit, > you > > are not in the dedicated space. NFPA 70 Handbook 2011, pg. 60- Sprinkler > > protection is permitted for the dedicated spaces as long as the sprinkler > > or other suppression system piping complies with 110.26(E)(1)(c). > > > > So if an AHJ or EOR says you can't run in the room, they need to be > > challenged and asked to provide chapter and verse. There is a lot of > > ignorance when it comes to protection of electrical installations. > > > > > > NFPA 70, Article 110.26(A) and 110.26(F) > > > > Craig L. Prahl > > Fire Protection Group Lead/SME > > CH2MHILL > > Lockwood Greene > > 1500 International Drive > > Spartanburg, SC 29303 > > Direct - 864.599.4102 > > Fax - 864.599.8439 > > CH2MHILL Extension 74102 > > craig.pr...@ch2m.com > > > > > > -----Original Message----- > > From: Sprinklerforum [mailto: > > sprinklerforum-boun...@lists.firesprinkler.org] On Behalf Of Greg > McGahan > > Sent: Friday, October 30, 2015 6:45 AM > > To: sprinklerfo...@firesprinkler.org > > Subject: sprinkler pipe passing through electrical rooms > > > > Am I mis-remembering that somewhere in some code - 13 or 70 - that there > > used to be a statement that dictated that the only sprinkler pipe allowed > > in an electrical room was the pipe feeding sprinklers in the room? > > > > Greg McGahan > > Living Water Fire Protection, LLC <http://www.livingwaterfp.com> > > 1160 McKenzie Road > > Cantonment, FL 32533 > > 850-937-1850 > > fax 850-937-1852 > > _______________________________________________ > > Sprinklerforum mailing list > > Sprinklerforum@lists.firesprinkler.org > > > > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > > _______________________________________________ > > Sprinklerforum mailing list > > Sprinklerforum@lists.firesprinkler.org > > > > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > > > > > > -- > Ron Greenman > Instructor > Fire Protection Engineering Technology > Bates Technical College > 1101 So. Yakima Ave. > Tacoma, WA 98405 > > rgreen...@bates.ctc.edu > > http://www.bates.ctc.edu/fireprotection/ > > 253.680.7346 > 253.576.9700 (cell) > > Member: > ASEE, SFPE, ASCET, NFPA, AFSA, NFSA, AFAA, NIBS, WSAFM, WFC, WFSC > > They are happy men whose natures sort with their vocations. -Francis Bacon, > essayist, philosopher, and statesman (1561-1626) > > A problem well stated is a problem half solved. -Charles F. Kettering, > inventor and engineer (1876-1958) > _______________________________________________ > Sprinklerforum mailing list > Sprinklerforum@lists.firesprinkler.org > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > _______________________________________________ Sprinklerforum mailing list Sprinklerforum@lists.firesprinkler.org http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
