NFPA 13 gives clear options, chaining and locking is one of them. What's the issue here? There are building installations where there is no requirement for a fire alarm system so there is no provision for supervising valves electronically, in those cases you chain or lock them.
8.16.1.1.2* Supervision. 8.16.1.1.2.1 Valves on connections to water supplies, sectional control and isolation valves, and other valves in supply pipes to sprinklers and other fixed water-based fire suppression systems shall be supervised by one of the following methods: (1) Central station, proprietary, or remote station signaling service (2) Local signaling service that will cause the sounding of an audible signal at a constantly attended point (3) Valves locked in the correct position (4) Valves located within fenced enclosures under the control of the owner, sealed in the open position, and inspected weekly as part of an approved procedure Craig L. Prahl Fire Protection Group Lead CH2MHILL Lockwood Greene 1500 International Drive Spartanburg, SC 29303 Direct - 864.599.4102 Fax - 864.599.8439 CH2MHILL Extension 74102 [email protected] -----Original Message----- From: Sprinklerforum [mailto:[email protected]] On Behalf Of [email protected] Sent: Monday, August 31, 2015 8:49 PM To: [email protected] Subject: AHJ Powers What say you? An inspector failed to require tamper switches on control valves. The job is complete and there are thousands of pounds of concrete between the control valves and the electrical panel. They placed a chain and lock and the chief declared the chain and lock meet intent...final approved. What say you? Sent from my iPhone _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
