Steve:
I dont believe the NEC indicates dry piping as a method of protection in your case. So, you will need the drip pans or something similar. <http://www.mfpdesign.com/> Travis Mack, CFPS, CWBSP, RME-G, SET MFP Design, LLC 3356 E Vallejo Ct Gilbert, AZ 85298 NEW EXTENSION: 480-505-9271 ext. 700 fax: 866-430-6107 <mailto:tm...@mfpdesign.com> tm...@mfpdesign.com www.mfpdesign.com Send large files to us via: <https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.highta il.com%2Fu%2FMFPDesign&data=02%7C01%7C%7C1121d49f9e6b4cf248f108d4df580e77%7C 14e5497c16da42e69ffa77d19bafe511%7C0%7C0%7C636379016677342180&sdata=eGdMZGu2 wXhUupGwgGTrqF3b54OP5%2BAZvlHhABSexWY%3D&reserved=0> https://www.hightail.com/u/MFPDesign LinkedIn: <https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.linked in.com%2Fin%2Ftravismack&data=02%7C01%7C%7C1121d49f9e6b4cf248f108d4df580e77% 7C14e5497c16da42e69ffa77d19bafe511%7C0%7C0%7C636379016677342180&sdata=tT5E7L sZjSmyreKi4gDCa70EWN%2BZodi%2FhbeCbHNRijI%3D&reserved=0> https://www.linkedin.com/in/travismack The bitterness of poor quality remains long after the sweetness of low price is forgotten. From: Sprinklerforum <sprinklerforum-boun...@lists.firesprinkler.org> On Behalf Of Steve Leyton via Sprinklerforum Sent: Wednesday, March 4, 2020 11:17 AM To: Prahl, Craig/GVL <craig.pr...@jacobs.com>; sprinklerforum@lists.firesprinkler.org Cc: Steve Leyton <st...@protectiondesign.com> Subject: RE: Dedicated space in Electrical Rooms per NEC Article 110 Its a dry system because it is protection spaces so specified and that criterion is already established. Im just wondering if we can consider the space as protected from leaks and breaks because its DIPA. We used the other means on past projects and usually avoid the room. SL From: Prahl, Craig/GVL [mailto:craig.pr...@jacobs.com] Sent: Wednesday, March 04, 2020 10:11 AM To: sprinklerforum@lists.firesprinkler.org <mailto:sprinklerforum@lists.firesprinkler.org> Cc: Steve Leyton Subject: RE: Dedicated space in Electrical Rooms per NEC Article 110 Steve, there is no requirement to provide a dry or PA system. A major auto manufacturer in our town has a huge electrical switchgear room which is completely wet. The protection against leaks, condensation etc. is addressed by providing shields over the equipment. We typically place that responsibility on the equipment manufacturer and not the sprinkler contractor. A sprinkler systems is a sprinkler system. There is also no requirement that only the line dedicated to the room can be in the room. Your main can pass through as long as you comply with the clearances and stay out of the restricted space per the NEC. Now to keep the Sparkys from having a heart attack, if theres a way to easily go around the electrical rooms, I usually try to do so and minimize routing anything major through the room. Craig Prahl | Jacobs | Group Lead/SME Fire Protection | 864.676.5252 | <mailto:craig.pr...@jacobs.com> craig.pr...@jacobs.com | <http://www.jacobs.com/> www.jacobs.com 1041 East Butler Road Greenville, South Carolina 29606 From: Sprinklerforum <sprinklerforum-boun...@lists.firesprinkler.org <mailto:sprinklerforum-boun...@lists.firesprinkler.org> > On Behalf Of Steve Leyton via Sprinklerforum Sent: Wednesday, March 4, 2020 12:56 PM To: sprinklerforum@lists.firesprinkler.org <mailto:sprinklerforum@lists.firesprinkler.org> Cc: Steve Leyton <st...@protectiondesign.com <mailto:st...@protectiondesign.com> > Subject: [EXTERNAL] Dedicated space in Electrical Rooms per NEC Article 110 Does anyone have experience or know of any interpretation pertaining to whether or not the dedicated space restrictions on sprinkler piping in electrical rooms is unconditional with regard to wet/dry systems? Weve got a building that is protected with both wet-pipe and DIPA and the preaction routing is such that it pretty much has to pass through the electrical room (it also protects that compartment). The provisions state that piping is allowed in the dedicated space if it complies with §110.26(E)(1), which that say foreign systems are permitted, provided protection is installed to avoid damage to the electrical equipment from condensation, leaks or breaks in such foreign systems. A common way of addressing this is to install a rated dropped ceiling (hard lid) that the architect would very strongly prefer not to do. Im thinking that double-interlock meets the criteria of protection against leaks, breaks, etc. Anyone? Bueller?? _____ NOTICE - This communication may contain confidential and privileged information that is for the sole use of the intended recipient. Any viewing, copying or distribution of, or reliance on this message by unintended recipients is strictly prohibited. If you have received this message in error, please notify us immediately by replying to the message and deleting it from your computer.
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