ES&H Manual Fire Protection Supplement

1.0 Purpose

The design, operation, and maintenance of fire protection systems is governed by applicable industry codes and standards (principally from the National Fire Protection Association (NFPA)), as modified by Department of Energy (DOE) fire safety criteria and Highly Protected Risk (HPR) status, or the best-protected class of industrial risks. The purpose of this chapter is to list specific design and operational requirements observed by Jefferson Lab that may be open for interpretation within these standard requirements.

2.0 Scope

The following requirements are incorporated into design planning. These requirements do not replace building code or local construction code requirements. When applicable the more restrictive requirement is used.

2.1 Design Criteria for Construction of New Facilities

2.1.1 Underground Water Distribution Piping (Reference: Facility Management (FM) Global Property Loss Prevention Data Sheet 3-10)

· Use design requirements for Private Fire Service Mains.

· The minimum pipe size is 8-inch ductile iron pipe (AWWA C151, Pressure Class 350). Larger pipe is used to meet hydraulic calculations.

· A looped main arrangement is used where more than three services (hydrants plus risers) are anticipated or when the main will exceed 300 feet. The looped main is taped off the existing private 12‑inch DIP main that traverses the site.

· Underground gate valves are installed in the looped main to allow isolation of the water system. No more than five services are isolated at any time.

· A post indicator valve assembly with a gate valve is used at the underground main for every incoming fire line to a building.

· Dry barrel fire hydrants with one 4-inch pumper connection and two 2½-inch hose connections, conforming to the City of Newport News standard, are used.

· Hydrant spacing provides 300 feet of hose line access to every window and door opening of a building.

· Hydrants are not closer than 40 feet to buildings.

· The incoming fire line passing through a foundation wall or floor slab on grade are installed with the minimum 1-inch to 3-inch radial clearance around the pipe and the clear space filled with asphalt mastic or similar flexible waterproofing material.

2.1.2 Building Fire Suppression

· Sprinkler flow requirements are hydraulically calculated.

· Industrial occupancies, other than experimental areas, have a minimum sprinkler design density of Ordinary Hazard Group 2 with a 1500 ft² area of sprinkler operation.

· Industrial occupancies in experimental areas have a minimum sprinkler design density of Ordinary Hazard Group 2 with a 3000 ft² area of sprinkler operation.

· All other occupancies have a minimum sprinkler design density of Ordinary Hazard Group 1 with a 1500 ft² area of sprinkler operation.

· Double interlock preaction sprinkler systems are installed using galvanized steel pipe.

2.1.3 Building Fire Detection

· Buildings are designed with fire detection systems that comply with the use group requirements.

· Fire alarm control panels are compatible with the Siemens Network Command Center.

· A building’s fire alarm system includes emergency voice/alarm communication.

· Underground and experimental areas include Very Early Smoke Detection Apparatus (VESDA) in addition to the minimum fire code required initiating appliances.

2.1.4 Building Life Safety

· NFPA 101 Life Safety Code is used to determine life-safety requirements in addition to the local building code requirements.

3.0 References

· DOE Standard 1066-99 Fire Protection Design Criteria

· FM Global Data Sheets

· NFPA Codes and Standards – Current Editions

· International Building Codes – Current Virginia Acceptance)

Refer to ES&H Manual Chapter 2410 Hazard Issues and Contractual Commitments for additional applicable references and requirements.

ISSUING AUTHORITY	CHAPTER AUTHOR	APPROVAL DATE	EFFECTIVE DATE	EXPIRATION DATE	REV.	Page 3 of 3
Fire Protection Dept	Dave Kausch	09/25/09	09/25/09	09/25/12	0

This document is controlled as an on line file. It may be printed but the print copy is not a controlled document. It is the user’s responsibility to ensure that the document is the same revision as the current on line file. This copy was printed on 9/30/2009.