It's not so much about if secondary power is available as it is about whether secondary power is necessary.
If the primary power source is considered unreliable or if there are issues with the capability of the local fire department (NFPA 20, 9.3) then secondary power is to be provided. If you have a diesel pump this requirement does not apply. Also refer to NFPA 20, 10.8 Craig L. Prahl, CET Fire Protection Specialist Mechanical Department CH2MHILL Lockwood Greene 1500 International Drive PO Box 491, Spartanburg, SC 29304-0491 Direct - 864.599.4102 Fax - 864.599.8439 [email protected] http://www.ch2m.com -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Jay White Sent: Thursday, October 29, 2009 3:12 PM To: [email protected] Subject: Transfer switches? Is their a simple explanation in NFPA about requirements? If secondary power available should they be installed? Jay White Dynamic Fire Protection 1807 Hwy. 25 South Starkville, MS 39759 _______________________________________________ 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)
