Adding to John's posting, sprinkler systems installed per 2006 IBC must be electrically supervised, with a few exceptions. Supervision includes "critical air pressure" (Section 903.4). Although this section does not say "per NFPA 72", the next section requires distinctly different trouble, alarm and supervisory signals be sent to a central station, remote or proprietary supervising station, as defined by NFPA 72, or other approved, constantly attended location. When I hear "electrically supervised" and that list of signals, I think NFPA 72. Although a bit weak, the connection to 72 seems to be there. Also, take a look at 13-2002, Annex D.5.1, for a synopsis of the very similar set of NFPA 101 requirements for supervised sprinkler system. And as George says regarding cheap insurance, install the switch and let someone else figure out how and to where it gets wired. Hopefully, someone will do that. Dave at Firetech Engineering Inc
John Drucker <[EMAIL PROTECTED]> wrote: Here's the reference; 2002 NFPA-72 5.13.2.2(2) "A pressure supervisory signal initiating device for a dry pipe sprinkler system shall indicated both high and low pressure conditions. The off normal signal shall be initiated when the pressure increases or decreases by 70kPa (10psi)." 2002 NFPA-72 is the 2006 IBC Chapter 35 Reference Standard. John Drucker Fire Protection Subcode Official New Jersey _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field)
