companion codes, standards and publications may be approved by the EHS-Fire Dept / AHJ, if the alternative fire protection engineering design provides an equivalent level of fire protection and life safety. Written requests for approval shall include justification demonstrating
equivalencies on the basis of pertinent data. Approved equivalencies and alternatives shall only apply to the specific building, facility or structure involved in extraordinary case where no
technical alternatives exist; and shall not constitute blanket approval for similar cases. NB:
(a) 1 to 5 as above (i) provide only an outline of the specific requirement(s) of EHS-Fire Dept for the guidance of qualified & approved consultants/users & (ii) serves as ready reckoner for maintaining consistency in approach. However, the consultants/users are cautioned and advised that they meet all requirements/recommendations as specified / cited in drawing review report(s) issued by EHS-Fire Department.
(b) Consultant shall submit design drawings meeting the above requirements and obtain approval of EHS – Fire Department, before procurement of materials.
Appendix-27
REQUIREMENTS FOR DESIGN, INSTALLATION & TESTING OF SPRINKLER SYSTEM 1.0 2.0 3.0 4.0 5.0 Standards
The design, installation & testing shall comply with NFPA – 13, 2002 Edition including the referenced NFPA , ASME , ASTM , AWS , AWWA, UL publications. The section and table references given below are from NFPA – 13, 2002 Edition unless otherwise noted.
System Requirements 2.1 System Design
The system design shall comply with Chapter 7& 11.
2.1.1 The Classification of Occupancies and Commodities shall be as per Chapter 5. 2.1.2 The system components - pipe, fittings and valves shall be selected as per Chapter 6. 2.1.3 If the Fire water pump also serves the hose stream demand , the system demand shall
be taken as follows :
a) Maximum sprinkler demand at the hydraulically remotest floor and 500 US GPM for two 2.5 inch hose stream application at hydraulically remotest points , both the systems operating together , for Class III system, as defined in NFPA- 14.
b) Maximum sprinkler demand at the hydraulically remotest floor and 100 US GPM for 1.5 or 1.0 inch hose stream application , both the systems operating together for Class II system as defined in NFPA – 14.
c) The system configuration shall be on the guidelines of schemes given in Figure A.7.1
(a), (b) or (c), NFPA – 14, 2007 Edition. A common riser supplying water to hose and sprinkler / spray system shall not be permitted. The system schematic shall be discussed and finalized with EHS – Fire Dept.
2.1.4 The water demand requirements shall be determined as per Chapter 11 as follows :
a) For Occupancy Hazard Fire Control Approach as per Section 11.2.The selection of
design area shall be established based on the severity of fire acceptable to Fire Dept.
b) For Storage Design Approach as per Chapter 12. c) Fir Special Design Approach as per Chapter 13.
2.1.5 The hydraulic calculations shall be as per the guidelines of Chapter 14. The Software used for hydraulic calculations shall be acceptable to Fire Dept. The orifice size, flow and pressure characteristics of flow devices – Sprinkler (and Hose reel nozzle, hose rack nozzle, open spray nozzle), shall be submitted with he calculations.
2.1.6 The pipe, fittings and valves shall comply with the requirements contained in Annex-A. 2.1.7 The Fire Water Pump shall comply with the requirements contained in Annex – B. 2.1.8 The materials for pipes and fittings shall comply with the requirements contained in
Annex – C. The pipe supports shall comply with Chapter 9, NFPA – 13, 2002 Edition.
2.2 System Installation
The system shall be installed as per Chapter 8.
Testing and System Acceptance
Flushing, Hydro Test and Flow Test shall be carried out as per Chapter 16. Installer shall maintain Log of all the tests carried out and submit to Fire Dept after installation. The tests to be witnessed at site will be advised by Fire Dept.
Listings and Approvals
All the components of the system shall be Listed for their intended services. The Listing bodies (with product directories) shall comply with NFPA Standards and acceptable to Fire Dept.
Equivalencies: Equivalencies to any established prescriptive criteria of NFPA and its
companion codes, standards and publications may be approved by the EHS-Fire Dept / AHJ, if the alternative fire protection engineering design provides an equivalent level of fire protection
and life safety. Written requests for approval shall include justification demonstrating equivalencies on the basis of pertinent data. Approved equivalencies and alternatives shall only apply to the specific building, facility or structure involved in extraordinary case where no technical alternatives exist; and shall not constitute blanket approval for similar cases.
NB:
(a) 1 to 20 as above (i) provide only an outline of the specific requirement(s) of EHS-Fire Dept for the guidance of qualified & approved consultants/users & (ii) serves as ready reckoner for maintaining consistency in approach. However, the consultants/users are cautioned and advised that they meet all requirements/recommendations as specified / cited in drawing review report(s) issued by EHS-Fire Department.
(b) Consultant shall submit design drawings meeting the above requirements and obtain approval of EHS – Fire Department, before procurement of materials.
Appendix-28
REQUIREMENTS FOR DESIGN, INSTALLATION & TESTING OF HYDRANT SYSTEM 1.0 2.0 3.0 4.0 5.0 Standards
The design , installation & Testing shall comply with NFPA – 24 , 2007 & NFPA – 291 , 2007 Edition including the referenced NFPA ,ANSI , ASME , ASTM , AWS , AWWA publications. The section and table references given below are from NFPA – 24, 2007 & NFPA – 291, 2007 Edition, unless otherwise noted.
System Requirements