I usually submit my suggestion to the client and have their "security" expert bless it.
John John August Denhardt, P.E. Strickland Fire Protection Incorporated 5113 Berwyn Road College Park, Maryland 20740 Office Telephone Number: 301-474-1136 Mobile Telephone Number: 301-343-1457 FIRE SPRINKLERS SAVE LIVES -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Mike Brown Sent: Friday, March 05, 2010 12:02 PM To: [email protected] Subject: Re: "SCIF" Wall Penetration The penetration is actually through a wall that goes slab to deck around the "SCIF" area. We are allowed one penetration...so I have a 4" Sch. 40 Main feeding this portion of the building. On Fri, Mar 5, 2010 at 11:46 AM, Thom McMahon <[email protected]>wrote: > A good choice, but check the underground material spec. first. If they are > using C900, there is really no need to have a dielectric flg. or union. > > Also determine the purpose of the isolation. If it's Dept. of Defense, or > one of the many alphabet soup names, the issue may be more than simple > isolation, and require transmission frequency alteration. > Water is a very good conductor of sound, ask any submariner. To protect > verbal communication they may be wanting to induce "Noise" to prevent > covert > listening. > > Thom McMahon, SET > Firetech, Inc. > 2560 Copper Ridge Dr > P.O. Box 882136 > Steamboat Springs, CO 80488 > Tel: 970-879-7952 > Fax: 970-879-7926 > > > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of John > Denhardt > Sent: Friday, March 05, 2010 7:24 AM > To: [email protected] > Subject: RE: "SCIF" Wall Penetration > > We typically use a Watts series 3100 dielectric union. > > John > > John August Denhardt, P.E. > Strickland Fire Protection Incorporated > 5113 Berwyn Road > College Park, Maryland 20740 > Office Telephone Number: 301-474-1136 > Mobile Telephone Number: 301-343-1457 > FIRE SPRINKLERS SAVE LIVES > > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > For Technical Assistance, send an email to: [email protected] > > To Unsubscribe, send an email to:[email protected]<to%3ASprinklerforum-request@ firesprinkler.org> > (Put the word unsubscribe in the subject field) > _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
