DARTMOUTH COLLEGE DESIGN & CONSTRUCTION GUIDELINES
SECTION 16721 FIRE ALARM SYSTEMS Part 1 -Design Directives
January 3, 2012
Install fire alarm systems in accordance with NFPA 72, edition as enforced by local authority. Fire alarm wiring shall be installed in a system of EMT. All boxes and pull fittings of the fire alarm raceway system shall be painted red. The accessibility requirements for raceways and junction boxes detailed in other sections of the standard shall be strictly enforced on fire alarm installations. All wiring shall be color-coded and sized as outlined below: Campus Connection Outside Plant Cable: Provide cable from building to building termination points via Communication ductbanks/manholes as directed by FO&M. Termination points to be located in main Tel/Dat rooms. Cable shall be equivalent to: SUPERIOR-ESSEX-K-2001/25 PAIR/26 AWG/90 DEGREE DRY/.010 INS THICKNESS – FOR CLASS 2 POWER LIMITED CIRCUITS. Device shall be either a Keltron PET402 or PET404 (depending on HFD and DC-FOM determination). Cable shall be two 6pair, 22 AWG, direct-burial rated telephone cable. Cable shall be identified as "FIRE ALARM" with permanent tags attached every 15 ft. Provide lightning protection arrestors at building termination point.
Detection loops (heat, smoke and pull stations) of non addressable systems only shall be color coded by building floor. The solid color conductor shall be used for the positive polarity side of all circuits. Starting on the lowest level of a building the colors shall be: Blue and White with blue stripe Orange and White with orange stripe Green and White with green stripe Brown and White with brown stripe Slate and White with slate stripe Yellow and White with yellow stripe This wire shall be #16 stranded with PVC insulation mil spec. MIL-W-16878/1, type B. This wire is available from Anixter, Belden, and Carroll. Detection loops (heat, smoke and pull stations) of addressable systems shall be color coded using yellow and purple 14 gage THHN. All fire alarm wiring shall conform to Class A. When renovating existing dormitory spaces, use an AC powered with battery back-up style smoke detector unit in dormitory rooms. Smoke detectors shall be installed as required by code. Smoke detectors shall be installed in all hallways and stairwells regardless of code requirements. All products shall have a UL listing. Smoke & Heat Detectors Smoke detectors shall be installed in all mechanical, electrical, tel/data and storage rooms as well as concealed but accessible areas like crawl spaces and attics. Heat detectors shall be installed in cold attics and mechanical spaces, and in dirty environments such as dirt floor crawl spaces.

下一页