Code Path - Fire Alarm - Class 1 Division 2 applications 2010 NFPA-72
12.2.4* The installation of all pathway wiring, cable, and equipment shall be in accordance with NFPA 70, National Electrical Code, and the applicable requirements of 12.2.4.1 through 12.2.4.5. 12.2.4.3* Fire alarm system wiring and equipment, including all circuits controlled and powered by the fire alarm system, shall be installed in accordance with the requirements of this Code and of NFPA 70, National Electrical Code, Article 760. 2008/2011 NFPA-70 (NEC) 760.3 Other Articles. Circuits and equipment shall comply with 760.3(A) through (K). Only those sections of Article 300 referenced in this article shall apply to fire alarm systems. (C) Hazardous (Classified) Locations. Articles 500 through 516 and Article 517, Part IV, where installed in hazardous (classified) locations. 500.1 Scope - Articles 500 Through 504. Articles 500 through 504 cover the requirements for electrical and electronic equipment and wiring for all voltages in Class I, Divisions 1 and 2; Class II, Divisions 1 and 2; and Class III, Divisions 1 and 2 locations where fire or explosion hazards may exist due to flammable gases, flammable liquid-produced vapors, combustible liquid-produced vapors, combustible dusts, or ignitible fibers/flyings. (2) Class I, Division 2. A Class I, Division 2 location is a location (1) In which volatile flammable gases, flammable liquid- produced vapors, or combustible liquid-produced vapors are handled, processed, or used, but in which the liquids, vapors, or gases will normally be confined within closed containers or closed systems from which they can escape only in case of accidental rupture or breakdown of such containers or systems or in case of abnormal operation of equipment Hope that helps, John Drucker, CET Fire Protection Subcode Official Fire / Building / Electrical Inspector New Jersey -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of John Drucker Sent: Sunday, March 17, 2013 1:03 AM To: [email protected] Subject: Re: Sprinkler Tree NEC Hazardous Location. Class I - Flammable Vapors. Division 2 vapors not normally present. Explosion Proof or Intrinsic required if in the classified area. John Drucker - Mobile Email ----- Original Message ----- From: [email protected] <[email protected]> To: [email protected] <[email protected]> Sent: Sun Mar 17 00:24:00 2013 Subject: Sprinkler Tree I had an electrical contractor commenting on a sprinkler tree, as following: "The tamper switch and low flow switch are not rated for Class 1 Division 2 applications. Also, the brass body valve and gauges should also be replaced". Anyone know what he is talking about? Tony _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum CONFIDENTIAL AND PROPRIETARY: This email message is intended only for the use of the individual or entity to which it is addressed and may contain information that is privileged and confidential, nor is it, unless specifically stated, intended to be relied upon by any person or persons other than the individual or entity named above and no warranties or representations are made or intended to persons or entities not named above. If the reader is not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by telephone, return this message to the address above and delete all copies. Thank you. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attachment s/20130317/d9c7f56b/attachment.html> _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum
