SOW Attach 1_Sample TSFPEWG-G.pdf

TSFPEWG G 3-600-01.01-18

25 February 2021

TRI-SERVICE FIRE PROTECTION

ENGINEERING WORKING GROUP

(TSFPEWG) GUIDE

APPROVED FOR PUBLIC RELEASE; DISTRIBUTION UNLIMITED

AIR FORCE FIRE PROTECTION

ENGINEERING CRITERIA AND

TECHNICAL GUIDANCE FOR MISSION

CONTINUITY OF ELECTRONIC,

INFORMATION TECHNOLOGY, AND

TELECOMMUNICATIONS EQUIPMENT

INSTALLATIONS

TRI-SERVICE FIRE PROTECTION ENGINEERING WORKING GROUP GUIDE

(TSFPEWG G)

AIR FORCE FIRE PROTECTION ENGINEERING CRITERIA AND TECHNICAL

GUIDANCE FOR MISSION CONTINUITY OF ELECTRONIC, INFORMATION

TECHNOLOGY, AND TELECOMMUNICATIONS EQUIPMENT INSTALLATIONS

Any copyrighted material included in this TSFPEWG Guide is identified at its point of use. Use of the copyrighted material apart from this TSFPEWG Guide must have the permission of the copyright holder.

Indicate the preparing activity beside the Service responsible for preparing the document.

U.S. ARMY CORPS OF ENGINEERS

NAVAL FACILITIES ENGINEERING SYSTEMS COMMAND

AIR FORCE CIVIL ENGINEER CENTER (Preparing Activity)

Record of Changes (changes are indicated by \1\ ... /1/)

Change No. Date Location

This TSFPEWG Guide supersedes Air Force ETL 01-18, Fire Protection Engineering Criteria – Electronic Equipment Installations, dated 24 October 2001

FOREWORD

This Tri-Service Fire Protection Engineering Working Group Guide supplements guidance found in other Unified Facilities Criteria, Unified Facilities Guide Specifications, Defense Logistics Agency Specifications, and Service-specific publications. All construction outside of the United States is governed by Status of Forces Agreements (SOFA), Host Nation Funded Construction Agreements (HNFA), and, in some instances, Bilateral Infrastructure Agreements (BIA).

Therefore, the acquisition team must ensure compliance with the most stringent of the TSPWG Guide, the SOFA, the HNFA, and the BIA, as applicable. The information in this guide is referenced in technical publications found on the Whole Building Design Guide. It is not intended to take the place of Service-specific doctrine, technical orders (TOs), field manuals, technical manuals, handbooks, Tactic Techniques or Procedures (TTPs), or contract specifications but should be used along with these to help ensure electronic equipment protection features meet mission requirements.

TSPWG Guides are living documents and will be periodically reviewed, updated, and made available to users as part of the Services’ responsibility for providing technical criteria for military construction, maintenance, repair, or operations. Headquarters, U.S. Army Corps of Engineers (HQUSACE), Naval Facilities Engineering Systems Command (NAVFAC), and the Air Force Civil Engineer Center (AFCEC) are responsible for administration of this document. Technical content of this TSFPEWG Guide is the responsibility of AFCEC/COSM, Fire Protection Engineering Team. Defense agencies should contact the preparing activity for document interpretation at afcec.rbc@us.af.mil. Send recommended changes with supporting rationale to the respective Service TSFPEWG member, AFCEC/COSM, 139 Barnes Drive, Suite 1, Tyndall AFB, FL 32403-5319, afcec.rbc@us.af.mil.

TSPWG Guides are effective upon issuance and are distributed only in electronic media from the following source:

• Whole Building Design Guide web site http://dod.wbdg.org/.

Hard copies of TSFPEWG Guides printed from electronic media should be checked against the current electronic version prior to use to ensure that they are current.

mailto:afcec.rbc@us.af.mil mailto:afcec.rbc@us.af.mil http://dod.wbdg.org/

TRI-SERVICE FIRE PROTECTION ENGINEERING WORKING GROUP GUIDE

(TSFPEWG G)

NEW SUMMARY SHEET

Document: TSFPEWG G 3-600-01.01-18, Air Force Fire Protection Engineering Criteria and Technical Guidance for Mission Continuity of Electronic, Information Technology, and Telecommunications Equipment Installations

Superseding: ETL 01-18, Fire Protection Engineering Criteria – Electronic Equipment Installations, 24 October 2001

Description: This guide provides detailed fire protection engineering guidance for protecting electronic equipment in facilities.

Reasons for Document: The detailed technical guidance in this guide implements the general criteria in UFC 3-600-01, Fire Protection Engineering for Facilities, paragraph 4- 12, “Electronic Equipment Areas.” This guide provides a process for determining the mission continuity importance of electronic equipment. This guide provides detailed minimum protection features for Air Force facilities containing electronic equipment, including, but not limited to, command and control, flight control, weapons control, missile control, intelligence, data, and telecommunications.

Impact: There is no cost impact.

Unification Issues: This guide has been issued for immediate use by the Air Force to replace ETL 01-18. The guide brings the Air Force into unified compliance with UFC 3- 600-01, paragraph 4-12, “Electronic Equipment Areas.” Other Services and DoD agencies may review this guide to determine applicability to their activities.

i

TABLE OF CONTENTS

CHAPTER 1 INTRODUCTION

1-1 PURPOSE AND SCOPE

1-2 GENERAL BUILDING REQUIREMENTS

1-3 COMMERCIAL INDUSTRY PRACTICES

1-4 CLASSIFICATION OF EQUIPMENT

1-5 ACREDITED/CERTIFIED DESIGNS AND FACILITIES

1-6 REFERENCES

1-7 GLOSSARY

CHAPTER 2 PROTECTION FOR MISSION-ESSENTIAL/MAC III

2-1 OVERVIEW

2-2 FACILITY CONSTRUCTION

2-3 INTERIOR FINISH

2-4 FIRE ALARM

2-5 SPRINKLER PROTECTION

2-6 FIRE DETECTION

2-7 LEAK DETECTION

2-8 EQUIPMENT COOLING SYSTEMS

2-9 TECHNICAL POWER DISCONNECT

2-10 EQUIPMENT AND UTILITY ARRANGEMENTS

2-11 CABLE AND WIRING

2-12 RAISED FLOORS

2-13 SMOKE EXHAUST SYSTEM

2-14 FIRE EXTINGUISHERS

CHAPTER 3 PROTECTION FOR MISSION-ESSENTIAL/MAC II AND MISSION-

CRITICAL/MAC II SPACES

3-1 OVERVIEW

3-2 FACILITY CONSTRUCTION

3-3 FIRE DETECTION

3-3.1 Smoke Detection System Threshold Levels

3-3.2 Smoke Detector Locations

3-3.3 Threshold Actions (Occupied Facilities)

3-3.4 Threshold Actions (Unoccupied Facilities) ii

CHAPTER 4 PROTECTION FOR MISSION-CRITICAL/MAC I ELECTRONIC

EQUIPMENT SPACES

4-1 OVERVIEW

4-2 FACILITY CONSTRUCTION

4-3 CLEAN AGENT SUPPLEMENTAL FIRE SUPPRESSION

4-4 SMOKE EXHAUST SYSTEM

4-5 PRE-ACTION SPRINKLER PROTECTION

CHAPTER 5 PROTECTION FOR MISSION-ESSENTIAL AND MISSION-CRITICAL

EQUIPMENT SPACES IN REMOTE FACILITIES

5-1 OVERVIEW

5-2 FACILITY CONSTRUCTION

5-3 FIRE RATED CONSTRUCTION

5-4 RURAL/WILD LAND INTERFACE ZONES

5-5 FIRE DETECTION

5-6 FIRE SUPPRESSION

CHAPTER 6 MODULAR DATA CENTERS USED FOR MISSION-ESSENTIAL AND

MISSION-CRITICAL EQUIPMENT SPACES

6-1 OVERVIEW

6-2 FACILITY LOCATION

6-3 FIRE ALARM

6-4 FIRE SUPPRESSION

6-5 FIRE ALARM DETECTION

6-6 EQUIPMENT COOLING SYSTEMS

6-7 CABLE AND WIRING

GUIDANCE TO DETERMINE INFORMATION TECHNOLOGY

EQUIPMENT CLASSIFICATION

A-1 CLASSIFICATION

A-2 LEGACY SYSTEMS

RECOMMENDED FIRE ALARM AND EMERGENCY NOTIFICATION

MESSAGES

B-1 INTRODUCTION

B-2 MESSAGE WITHIN THE INFORMATION TECHNOLOGY EQUIPMENT

ROOM FOR SINGLE ACTIVATION OF A SMOKE DETECTOR (CHAPTER 2)

iii

B-3 MESSAGE WITHIN THE INFORMATION TECHNOLOGY EQUIPMENT

ROOM FOR THE ALERT DETECTION LEVEL OF THE VERY EARLY WARNING

SMOKE DETECTION SYSTEM (CHAPTERS 3, 4, AND 5)

B-4 OPTIONAL MESSAGE WITHIN THE INFORMATION TECHNOLOGY

EQUIPMENT ROOM FOR THE INTERMEDIATE DETECTION LEVEL OF THE

VERY EARLY WARNING SMOKE DETECTION SYSTEM (IF USED) (CHAPTERS 3

AND 4). 34

B-5 GENERAL MESSAGES FOR CLEAN AGENT ACTIVATION WITHIN

THE INFORMATION TECHNOLOGY EQUIPMENT ROOM (CHAPTER 4)

B-6 GENERAL MESSAGES FOR SPRINKLER ACTIVATION, FIRE ALARM

PULL STATION, OR ALARM DETECTION LEVEL OF SMOKE INSIDE THE

INFORMATION TECHNOLOGY EQUIPMENT ROOM (ALL CHAPTERS)

REFERENCES

GLOSSARY

D-1 ACRONYMS

D-2 TERMS

iv

This Page Intentionally Left Blank

CHAPTER 1 INTRODUCTION

1-1 PURPOSE AND SCOPE.

1-1.1 This guide details minimum protection features for Air Force facilities containing electronic equipment, including, but not limited to, command and control, flight control, weapons control, missile control, intelligence, data, and telecommunications. It applies to all new construction, renovation, modernization, and rehabilitation of facilities for all electronic equipment installations. Facilities that contain mission-essential and mission-critical information technology equipment are provided with gradually increasing layers of fire protection features to provide the greatest opportunity to protect the equipment and retain mission continuity.

1-1.2 This guidance implements the general criteria in UFC 3-600-01, Fire Protection Engineering for Facilities - Electronic Equipment Areas. It amends Chapters 2 through 9 of ANSI/TIA-942-B, Telecommunications Infrastructure Standard for Data Centers, related to fire protection.

1-2 APPLICABILITY.

This guide applies to the Air Force and provides detailed guidance to meet the requirements of UFC 3-600-01, paragraph 4-12, “Electronic Equipment Areas.” Other Services and DoD agencies should consult with the Service Authority Having Jurisdiction (AHJ) identified in UFC 3-600-01, paragraph 2-12, “Authority Having Jurisdiction (AHJ),” before using this guide.

1-2 GENERAL BUILDING REQUIREMENTS.

UFC 1-200-01, DoD Building Code, provides applicability of model building codes and government-unique criteria for typical design disciplines and building systems, as well as for accessibility, antiterrorism, security, high performance and sustainability requirements, and safety. Use this guide in addition to UFC 1-200-01, UFC 3-600-01, and the referenced UFCs and government criteria herein.

1-3 COMMERCIAL INDUSTRY PRACTICES.

This guide is based on current North American and European commercial industry practices. American National Standards Institute (ANSI), European Union (EU), and numerous private standards were reviewed for best practices. The single critical lesson found throughout the standards is that all elements (structure, power, cooling, security, fire, operations, hardware and software) of the infrastructure envelope function in concert or the desired reliability will not be achieved. Regardless of the financial investment in any individual element, the element having the lowest reliability will establish the overall reliability of the whole information technology system.

1-4 CLASSIFICATION OF EQUIPMENT.

Information technology electronic equipment, for the purpose of DoD fire protection, is divided into incidental equipment and two classifications of mission equipment. DoDI 8580.1, Information Assurance (IA) in the Defense Acquisition System, designates the two classes of mission information technology equipment as “mission-essential” and “mission-critical,” based on guidance in 40 USC § 1101.

1-3.1 Incidental equipment includes the general equipment typically found in offices, including desktop and laptop computers and associated peripherals. Incidental equipment often includes local servers and switches; such equipment may have dedicated cooling or limited power conditioning continuation interfacing equipment (PCCIE) capability. It includes general-use phones and phone switching equipment.

Incidental equipment is typically not provided with dedicated redundant power, cooling, and other infrastructure features. The presence of incidental equipment does not generate a requirement for any unique or additional fire protection features other than what is required by UFC 3-600-01 for basic facility/occupancy. Installation of new incidental equipment in an existing facility does not generate new facility requirements.

1-3.2 Mission-essential equipment and mission-critical equipment are identified in DoDI 8580.1 based on the criteria in 40 USC § 1101, Definitions, and 44 USC § 3502, Planned Public Works. DoDI 8580.1 further differentiates mission-essential and mission-critical based on mission impact by assigning a mission assurance category (MAC): MAC I, MAC II, and MAC III. MAC I represents the highest required reliability/availability and MAC III represents the least required reliability/availability. All electronic equipment, in accordance with DoDI 8580.1, is formally assigned both a mission identification classification and a MAC category.

1-3.2.1 System program managers or users provide the mission identification classification and the MAC category to facility engineers to ensure the facility infrastructure, including fire protection features, meets the mission assurance goals.

1-3.2.2 The equipment with the highest mission identification classification and highest MAC category establishes the fire protection requirements within an area. All equipment in that area, including incidental equipment and lower category MAC equipment, is protected at the higher fire protection requirements required for that area.

1-3.2.3 This guide establishes three increasing levels of fire protection features to provide appropriate fire protection for all classifications and categories of mission equipment. These fire protection levels are identified as: (1) Mission-Essential/MAC III;

(2 and 3) Mission-Essential/MAC II and Mission-Critical/MAC II; and (4) Mission- Critical/MAC I. Each successive level of fire protection incorporates and builds upon the preceding level.

1-3.3 In the absence of a formally assigned mission identification and MAC category in accordance with DoDI 8580.1, it is the mission program executive’s responsibility to assign an appropriate mission identification and MAC category to ensure mission continuity.

1-3.4 Equipment without a mission identification classification and MAC category is considered incidental equipment. No additional protection for the electronic equipment is needed beyond the basic requirement for the occupancy as indicated in

UFC 3-600-01.

Appendix A is a guide to estimate the mission identification classification and MAC category in the absence of formally assigned ratings. There will be situations where legacy equipment was acquired before mission identification classification and MAC category were assigned. In these cases, it will be necessary to reverse-engineer the appropriate ratings. The process discussed in Appendix A will help users determine approximate mission identification and MAC ratings based on the features provided.

1-5 ACREDITED/CERTIFIED DESIGNS AND FACILITIES.

Designs and facilities which have been certified by an accredited independent third party as complying with a specific ANSI/TIA-942-B rating level will be considered as compliant with UFC 3-600-01 and this guide for the appropriated mission/MAC categories in paragraph 1-3.2.3.

1-6 REFERENCES.

Appendix C contains a list of references used in this guide. The publication date of the code or standard is not included in this guide. Unless otherwise specified, the most recent edition of the referenced publication applies.

1-7 GLOSSARY.

Appendix D contains acronyms, abbreviations, and terms.

CHAPTER 2 PROTECTION FOR MISSION-ESSENTIAL/MAC III

2-1 OVERVIEW.

Facilities containing areas or rooms with mission-essential/MAC III equipment (i.e., least required reliability/availability) conform to the ANSI/TIA-942-B Rated 1 fire protection requirement, except as indicated in this chapter. The guidance in this chapter modifies the ANSI/TIA-942-B Rated 1 criteria to meet DoD requirements; however, if conflicts exist, the guidance in this chapter takes precedence over ANSI/TIA-942-B.

2-2 FACILITY CONSTRUCTION.

2-2.1 Information technology equipment areas and rooms are separated from adjacent spaces/occupancies within the facility. Technical spaces and infrastructure support spaces are separated by fire-resistance rated wall and floor/ceiling assemblies as specified in UFC 3-600-01 and this guide. DoD and commercial data confirm fires that damage information technology equipment often begin in building areas outside of the information technology equipment space. Fire and smoke can easily spread to the information technology equipment space if these areas are not compartmentalized by fire-resistance rated walls and floors.

2-2.2 Avoid locating information technology equipment in rooms directly above, below, or adjacent to areas identified in NFPA 101, Life Safety Code®, Section 38.3.2, “Protection from Hazards.” Avoid locating information technology equipment below restrooms, shower rooms, food preparation areas, sculleries, and mechanical rooms.

2-2.2.1 Common walls between MAC III information technology equipment and infrastructure support spaces (including spaces with only incidental equipment) are rated at no less than 1-hour fire resistance.

2-2.2.2 Common walls between redundant MAC III information technology equipment are rated at no less than 1-hour fire resistance.

2-2.2.3 Common walls between MAC III information technology equipment areas and adjacent support room(s) of MAC III level are not required to be rated unless the adjacent areas provide mission redundancy.

2-2.2.4 Common walls between MAC III areas and MAC II areas are rated at no less than 1-hour fire resistance.

2-2.2.5 Common walls between MAC III areas and MAC I areas are rated at no less than 2-hour fire resistance.

2-2.3 Fire-resistance rated wall assemblies must comply with the requirements of UFC 3-600-01 for fire-resistive wall assemblies. Fire-resistive walls extend from the structural floor to the structural ceiling/roof above. Opening protectives in fire-resistance rated construction are provided in accordance with UFC 3-600-01 and as indicated in the following paragraphs.

2-2.3.1 Where rated fire or smoke doors are provided, they are self- or automatic closing.

2-2.3.2 Where rated shutters are provided, they are automatic closing.

2-2.3.3 Openings for air-handling ductwork or air movement in the fire-resistance rated construction provided for the information technology equipment areas and rooms are provided with automatic fire and smoke dampers. Dampers are provided in accordance with NFPA 90A, Standard for the Installation of Air Conditioning and Ventilating Systems. The NFPA 90A/International Building Code (IBC)/International Mechanical Code (IMC) allowance for omitting fire and smoke dampers in 1-hour fire rated construction when the building is fully sprinklered does not apply to 1-hour fire rated construction enclosing technical areas. Automatic resetting dampers are required.

2-2.3.4 All other penetrations, such as piping, conduit, and wiring that pass through fire-resistance rated construction, are protected with a fire-stopping material or system with at least the same hourly rating of the construction penetrated. The fire-stopping material or system is listed by Underwriters Laboratories (UL), FM Global, or a nationally recognized testing laboratory (NRTL).

2-3 INTERIOR FINISH.

2-3.1 Interior wall and ceiling finishes have a Class A or B rating as defined in

NFPA 101.

2-3.2 Interior floor finishes have a Class I or II rating as defined in NFPA 101.

2-4 FIRE ALARM.

2-4.1 Provide a fully addressable voice notification fire alarm control unit. The unit is capable of providing multiple different notification messages, and, in those facilities with multiple separated information technology areas, capable of providing unique specific messages to specific areas. The unit is capable of providing paging and emergency action mass notification messaging as detailed in UFC 3-600-01 and UFC 4- 021-01, Design and O&M: Mass Notification Systems. UFC 3-600-01, Appendix E, includes recommended voice notification messages and Appendix B of this guide contains additional recommended voice notification messages adapted to the guidance herein.

2-4.2 Fire alarm notification signals (including trouble and supervisory signals) report to a continuously occupied location and to the installation fire alarm receiving location.

2-4.3 The integrity of automatic shutdown device controls is supervised by the facility fire alarm system.

2-4.4 Shielded enclosures or sensitive compartmented information facilities (SCIF) rooms are provided with electronic isolation or other countermeasures for electronic emanations from the fire alarm system as detailed in UFC 4-010-05, Sensitive Compartmented Information Facilities Planning, Design, and Construction.

2-4.5 The fire alarm and subcomponents are powered from the power supply for fire protection systems as detailed in UFC 3-520-01, Interior Electrical Systems.

2-5 SPRINKLER PROTECTION.

2-5.1 Information technology equipment areas and rooms containing mission-essential or mission-critical equipment are located in facilities protected with complete coverage throughout by an automatic sprinkler system designed and constructed in accordance with NFPA 13, Standard for the Installation of Sprinkler Systems, and UFC 3-600-01. Halogenated agents, carbon dioxide, dry-pipe sprinklers, and wet/dry chemical fire suppression systems must not be installed in information technology/electronics equipment areas or rooms.

2-5.2 A pre-action water sprinkler system or a clean agent gaseous fire suppression system may be used as an alternative to the wet-pipe sprinkler system for high-voltage electrical substation spaces and control/relay rooms located within the facility with the approval of the component fire protection engineer (CFPE)

(AFCEC/COSM).

Note: A pre-action water sprinkler system may be used as an alternative to a wet-pipe sprinkler system for mission-critical/MAC I electronic equipment spaces. (See Chapter 4.)

2-5.3 Sprinkler Protection Minimum Additional Features.

2-5.3.1 The sprinkler system serving the information technology equipment area or room sprinklers are supplied by a separate sprinkler riser or supplied as a separate supervised zone with a dedicated water flow detection device. The riser or zone control valves are located outside of the space and readily accessible to emergency responders. Sprinkler activation and supervisory notifications are distinctly indicated at the fire alarm receiving location.

2-5.3.2 Listed quick-response sprinklers are installed throughout the information technology equipment area and room, including areas with data storage.

2-5.3.3 In all smooth ceiling areas, install fully concealed sprinklers. In areas with open ceilings or where sprinklers and piping are exposed, install protected sprinkler heads, sprinklers with head guards/cages, or institutional-type sprinkler heads.

2-5.3.4 Activation of the automatic sprinkler system within the information technology equipment room automatically disconnects power to the electronic equipment systems. Only activation of the automatic sprinkler is allowed to automatically disconnect power to the electronic equipment.

2-5.3.5 Activation of the automatic sprinkler system within an information technology equipment room should not shut down equipment cooling systems in the affected information technology equipment room (i.e., self-contained cooling systems inside that room or systems dedicated to supplying only that room).

2-5.3.6 If a ceiling is installed as a portion of a hot-cold aisle containment system, sprinklers are installed beneath that ceiling.

2-6 FIRE DETECTION.

2-6.1 Smoke detection is provided. The fire detection features are provided and installed in accordance with NFPA 72, National Fire Alarm and Signaling Code, and

UFC 3-600-01.

2-6.2 Activation of a single smoke detector causes visual and audible notifications within the information technology equipment area or room and transmits a fire alarm notification to the fire alarm receiving center (e.g., fire station, central alarm station).

2-6.3 Activation of a single smoke detector within the information technology room should not initiate a general building fire evacuation alarm.

Note: This is the time for operator investigation and action to determine if there is an actual mission continuity risk.

2-6.4 Activation of a second smoke detector activates the smoke exhaust system (except as otherwise specified in this guide) within the information technology equipment room/space and initiates a general building fire evacuation alarm.

2-7 LEAK DETECTION.

2-7.1 FM Global Loss Prevention Data Sheet 5-32, Electronic Data Processing Systems, and ANSI/TIA-942-B recognize the effectiveness of providing a way to manage water within an information technology equipment room. Providing drainage in the information technology equipment room can also help protect equipment. The addition of leak detection can be a key factor in maintaining uninterrupted operation.

Provide water/moisture sensors in the following locations:

• Information technology equipment room − Near heating, ventilation, air-conditioning (HVAC) equipment using chilled or heated liquids for heat transfer

− Near liquid equipment cooling systems

− Above the ceiling when there is overhead liquid utility distribution, including chilled water, utility water, sanitary collection piping, sprinkler water, refrigerants, and roof and floor drains

Note: Water/moisture sensors are not needed if there is no ceiling (i.e., the overhead is open to the underside of the floor/roof assembly above).

• All raised floor or subfloor areas

2-7.2 The water/moisture sensors provide detection indication to the system operators of a potential mission continuity risk. Water/moisture sensors may be part of the environmental and utility monitoring systems. In the absence of an environmental and utility monitoring system, a separate water/moisture sensing system may be supervised by the fire alarm system, but must still provide a distinct indication to the system operators and fire alarm center and not activate a general evacuation signal within the building.

2-8 EQUIPMENT COOLING SYSTEMS.

2-8.1 Forced-air cooling systems typically use traditional HVAC equipment or computer room air conditioning (CRAC) units to move large volumes of low-temperature air within the information technology equipment room and through the information technology equipment. Section 2-8 does not apply to forced-air fans located within and integral to the equipment racks. Provide the following features:

2-8.1.1. Smoke detectors listed for use in air distribution systems are installed in all air-handling systems providing equipment cooling regardless of the volume of air moving through the system. Smoke detectors in air handler/air-handling systems typically will be part of the environmental and utility monitoring systems controls. In the absence of such a system, the smoke detectors may be supervised by the fire alarm system but still provide a distinct indication to the system operators in the room, to a continuously occupied location, and to the installation fire alarm receiving location.

2-8.1.2 Automatic smoke and fire dampers are supervised by the facility fire alarm system in accordance with NFPA 72.

2-8.1.3 Air-handlers (individual units) providing equipment cooling will automatically shut down upon activation of the smoke detector in the air-handler as required in either NFPA 90A or the IMC. All associated fire and smoke dampers close when the air-handler automatically shuts down. Dampers automatically restore to their normal operating position when the air-handler is re-energized. Smoke detector shutdown of an air-handler should not initiate a fire evacuation alarm.

2-8.1.4 Interlock air-handling systems will disconnect power to the information technology electronic equipment systems upon loss of the minimum cooling capacity required by the information technology electronic equipment.

Note: Loss of equipment cooling can generate ceiling and room temperatures exceeding even those temperatures expected in a fire. This can result in significant electronic equipment damage and also lead to the activation of gaseous fire suppression systems or automatic sprinkler systems.

2-8.1.5 Air-handling systems providing equipment cooling do not automatically shut down upon activation of the fire sprinkler system within the information technology equipment room.

2-8.1.6 Air filters for use in air-conditioning systems have a Class 1 rating in accordance with UL 900, Standard for Air Filter Units.

2-8.2 Other equipment cooling systems and temperature control features such as chilled water, refrigerants, heat exchange fluids, compressed air, inert gases, drop curtains, and retractable ceilings are evolving technologies to address the exponentially increasing thermal loads generated in information technology equipment. Consult AFCEC/CO prior to implementing these technologies in new facilities or modification projects supporting mission-essential and mission-critical information technology equipment.

2-9 TECHNICAL POWER DISCONNECT.

Technical power disconnects are provided for all electronic equipment in the information technology room. The disconnect method may be for simultaneous disconnection of all electronic equipment in the room or by individual disconnection of zones within the room/space. (See NFPA 70, National Electrical Code® [NEC], Article 645.10.)

2-9.1 Technical power disconnection means comply with NFPA 70, Article 645.10(B) for critical operations data systems in all continuously occupied applications.

Procedures in NFPA 70, Article 645.10(B)(1), are permanently posted at the power disconnect location, at the system operator’s location, and at the primary egress point from the space. A copy of procedures is provided to the responsible fire emergency service organization. Procedures are jointly exercised at a mutually agreed time, but not less than annually.

2-9.2 Technical power disconnecting means and location comply with NFPA 70, Article 645.10(A), for those facilities not continuously occupied.

2-9.2.1 The remote disconnect is at a jointly approved location readily accessible to fire emergency service responders. The information technology equipment operators and the responsible fire emergency service organization jointly approve the location.

2-9.2.2 Remote disconnect switches are double-action style and fully enclosed within tamper covers. Key-operated remote disconnect switches using an approved emergency key control system are allowed.

2-10 EQUIPMENT AND UTILITY ARRANGEMENTS.

Do not locate utilities serving areas other than the information technology rooms above the information technology rooms, including heating and cooling systems, hot-cold water distribution, waste collection piping, roof drains, fire sprinkler feed, and cross mains. Only the utilities directly serving the information technology rooms are permitted to pass above the space.

2-11 CABLE AND WIRING.

2-11.1 Power supply wiring, equipment interconnecting wiring, and grounding of information technology equipment comply with NFPA 70, Article 645. Only non-combustible conduit as specified in NFPA 70 is permitted within information technology equipment rooms.

2-11.2 Communications and interconnecting cable and wiring between components in the information technology equipment room and other areas of the facility or other facilities comply with NFPA 70, Articles 725, 760, 800, and 830. Listing markings are visible on the cable jacket/wiring insulation.

2-11.3 Power and communication cabling installed in spaces above ceilings or below raised floors are plenum rated or installed in non-combustible conduit in accordance with NFPA 70, Article 645.

2-11.4 Renovation, modernization, or rehabilitation projects for existing facilities that contain non-plenum rated cable not enclosed in non-combustible conduit or that contain combustible conduit:

2-11.4.1 Document the condition as a fire safety deficiency in accordance with AFI 32-10141, Programming and Planning Fire Protection Safety Deficiency Correction Projects.

2-11.4.2 Develop a corrective action plan to replace all non-plenum rated cable and combustible conduit within a five-year period; or

2-11.4.3 Install a clean agent fire suppression system provided in accordance with paragraph 4-3. Where a cable or conduit deficiency is solely under a raised floor, it is acceptable to provide the clean agent fire suppression system only below the raised floor. Where a cable or conduit deficiency is not solely under a raised floor, the clean agent fire suppression system protects the entire room/space, including above a suspended ceiling and below a raised floor.

2-12 RAISED FLOORS.

Raised floor systems, including structural supports and decking, are made of noncombustible materials.

2-13 SMOKE EXHAUST SYSTEM.

2-13.1 Provide a smoke exhaust system to remove smoke from the information technology equipment room to the exterior of the facility unless the room has a door opening directly to the outside. Rooms provided with doors opening directly to the outside may utilize pre-positioned portable air fans in lieu of a permanently installed smoke exhaust system meeting the guidance of this chapter. The smoke exhaust system is designed to minimize damage to the information technology equipment from corrosive action by smoke and other byproducts of the fire.

2-13.2 Exhaust is sized to provide a minimum smoke layer interface height or minimum smoke concentration in accordance with NFPA 92B, Standard for Smoke Management Systems in Malls, Atria, and Large Spaces. Make-up air for the exhaust is sized less than the exhaust in order to limit smoke spread to adjacent spaces in accordance with the minimum pressure differential specified by NFPA 92A, Standard for Smoke-Control Systems Utilizing Barriers and Pressure Differences (12 pascals [0.05 inch of water, gauge]) with respect to adjacent spaces).

2-13.3 The smoke exhaust systems have a dedicated exhaust separate from the normal air-handling equipment provided for the information technology equipment room.

Make-up air supply may be provided via dedicated equipment or the normal air-handling equipment, with make-up air being brought in at a height lower than the design smoke layer interface.

2-13.4 The smoke exhaust system is controlled by the facility fire alarm system.

Activation of the smoke exhaust system occurs on activation of two or more smoke detectors within the information technology electronic equipment space, sprinkler system activation within the information technology electronic equipment space, or by manual exhaust system activation at a location outside the information technology room. When the information technology electronic equipment space is provided with a clean agent supplemental fire suppression system, activation of the smoke exhaust system is by manual means only. Manual smoke evacuation control stations are distinctively different from fire alarm initiation stations (e.g., a pull station marked with “FIRE”). The word “FIRE” does not appear on the manual smoke evacuation control station. Manual smoke evacuation control stations are fully enclosed within an approved tamper cover. Key-operated remote switches using an approved emergency key control system are permitted.

2-13.4.1 The smoke exhaust system includes these features:

2-13.4.1.1 Automatic smoke and fire dampers isolate the information technology equipment area and room from the remainder of the facility.

2-13.4.1.2 The system is manually deactivated using a key-operated switch at a location outside the information technology equipment room.

2-13.4.1.3 The system is powered from the power supply for fire protection systems as detailed in UFC 3-520-01.

2-14 FIRE EXTINGUISHERS.

2-14.1 Listed Class C carbon dioxide, clean agent, or water mist fire extinguishers located in accordance with NFPA 10, Standard for Portable Fire Extinguishers, are provided within the information technology equipment area room(s).

Portable fire extinguishers for the rest of the facility comply with UFC 3-600-01.

2-14.2 Listed Class A extinguishers with a minimum rating of “2-A,” located in accordance with NFPA 10, are provided where ordinary combustibles are located within the information technology equipment rooms.

2-14.3 Extinguishers with multiple ratings that include “C” and “2-A” at a minimum are acceptable.

2-14.4 In OCONUS locations, host nation listed extinguishers with equivalent ratings are allowed.

2-14.5 Dry and wet chemical agent fire extinguishers are prohibited.

2-14.6 Listed/approved wall-mounted cabinets are provided for storage of and ready access to the fire extinguishers. OCONUS host nation listed/approved stands/mounts are permitted in the absence of host nation wall cabinets.

CHAPTER 3 PROTECTION FOR MISSION-ESSENTIAL/MAC II AND MISSION-

CRITICAL/MAC II SPACES

3-1 OVERVIEW.

Facilities containing information technology equipment areas or rooms with mission-essential/MAC II or mission-critical/MAC II equipment conform to the ANSI/TIA-942-B 2/3 Rated fire protection except as indicated in this chapter. The guidance in this chapter is intended to modify the ANSI/TIA-942-B 2/3 Rated criteria to meet DoD mission needs; however, if conflicts exist, the guidance in this chapter take precedence over ANSI/TIA-942-B.

Follow the guidance in Chapter 2 as modified by this chapter.

3-2 FACILITY CONSTRUCTION.

Mission-essential/MAC II and mission-critical/MAC II information technology equipment is located in buildings of non-combustible construction (IBC Type I or Type II construction).

3-2.1 Common walls between MAC II information technology equipment and infrastructure support spaces (including spaces with only incidental equipment) are rated at no less than 1-hour fire resistance.

3-2.2. Common walls between redundant MAC II information technology equipment are rated at no less than 1-hour fire resistance.

3-2.3 Common walls between MAC II information technology equipment areas and adjacent support room(s) of the same MAC II level are rated at no less than 1-hour fire resistance.

3-2.4 Common walls between MAC II areas and MAC I levels are rated at no less than 2-hour fire resistance.

3-3 FIRE DETECTION.

A very early warning smoke detection system complying with NFPA 76, Standard for the Fire Protection of Telecommunications Facilities, and UFC 3-600-01 is provided for information technology equipment areas and rooms. The very early warning smoke detection system is either an air aspirating-type, very early warning detection system or an intelligent high-sensitivity, photoelectric-type, spot-detection system. The system is provided and installed in accordance with NFPA 72 and UFC 3-600-01.

3-3.1 Smoke Detection System Threshold Levels.

The smoke detection system has a minimum of two programmable detection threshold levels and is provided within the sensitivity limits in addition to normal trouble and supervisory signals. The detection threshold levels are field-selectable within the sensitivity limits. The threshold levels for the installed detection systems are as follows:

3-3.1.1 Alert Sensitivity.

Alert sensitivity is no greater than 0.2 percent obscuration per foot (0.62 percent obscuration per meter). This is the more-sensitive setting, with the detector not activating at smoke levels below this sensitivity level.

3-3.1.2 Alarm Sensitivity.

Alarm sensitivity is no greater than 1.0 percent obscuration per foot (3.1 percent obscuration per meter). This is the less-sensitive setting, with the detector actuating an alarm condition at all smoke levels at or above this sensitivity level.

3-3.1.3 Additional Detection Levels.

The detection system may provide additional detection levels within its designed operating range to initiate any actions. The user may use such to activate notifications in addition to those listed in paragraph 3-3.3.

3-3.2 Smoke Detector Locations.

Provide and locate smoke detection air sampling ports or high-sensitivity spot smoke detection in accordance with the manufacturer’s listing and NFPA 76.

3-3.2.1 Ceilings.

Provide smoke detection at the ceiling level throughout the information technology equipment area and room.

3-3.2.1.1 Coverage.

Maximum coverage area of each air-sampling port or high-sensitivity spot detector will not exceed 200 square feet (18.6 square meters).

3-3.2.1.2 Spacing.

Spacing is adjusted for areas subject to return air flow, areas subject to maximum air flow from ventilation systems, aisle containment systems, and for special conditions in the room in accordance with the manufacturer’s listing.

3-3.2.2 Raised Floors.

Smoke detection is not needed below raised floors when cable and wiring below the raised floors meets the guidance in paragraph 2-11 and the space below the raised floor is not utilized by the ventilation system to circulate air to or from rooms of the facility other than the information technology equipment room.

3-3.2.3 Suspended Ceilings.

Smoke detection is not needed above suspended ceilings when cable and wiring above the suspended ceilings meet the guidance in paragraph 2-11 and the space above the suspended ceiling is not utilized by the ventilation system to circulate air to or from rooms of the facility other than the information technology equipment room.

3-3.3 Threshold Actions (Occupied Facilities).

At the smoke detection threshold levels, the following actions occur:

3-3.3.1 The Alert detection level activates visual and audible notifications within the information technology equipment area or room. It is clear to the information technology equipment operator the location/area within the space where the smoke was detected without having to leave the operator’s normal work area. The information is delivered in a manner the operator can understand to begin immediate action to correct the abnormality. The intent is to notify the system operators of a potential urgent condition while man-in-the-loop actions can mitigate or correct the condition.

Note: Activation of the Alert detection level should not initiate a general building evacuation alarm.

3-3.3.2 The Alarm detection level transmits an alarm to the fire alarm receiving center (e.g., fire station, central alarm station); activates distinctly different notifications in the information technology area; initiates a general building evacuation alarm; and activates the smoke exhaust system (except as otherwise indicated in this guide).

3-3.3.3 If an intermediate detection level between the Alert and Alarm detection levels is utilized, the intermediate detection level should activate visual and audible notifications in a continuously occupied location (e.g., security office, central office, command function) and activate distinctively different notifications in the information technology equipment area. The intent of the intermediate detection level notification to the continuously occupied location is to begin a plan to advise management of a deteriorating condition within the information technology space. Activation of an automated notification system in addition to or in the absence of a continuously occupied location is recommended.

3-3.4 Threshold Actions (Unoccupied Facilities).

For unoccupied information technology facilities, the following actions occur at the smoke detection levels. These changes will not fully compensate for the absence of personnel in the facility that would ensure mission availability/reliability, but the changes will help minimize equipment losses.

3-3.4.1 The Alert detection level causes visual and audible notifications within the information technology equipment area or room to activate; transmits a notification signal to a continuously occupied location (e.g., security office, central office, command function); and transmits a trouble signal to the fire alarm receiving center. The intent of the notification to the continuously occupied location is to initiate action to alert management of a deteriorating condition within the information technology space.

3-3.4.2 The Alarm detection level transmits an alarm to the fire alarm receiving center (e.g., fire station, central alarm station); activates visual and audible notifications in the continuously occupied location; activates distinctly different notifications in the information technology area; and activates the smoke exhaust system (except as otherwise indicated in this guide). The Alarm detection level also initiates a general building evacuation alarm in those facilities required by UFC 3-600-01 to provide a fire alarm evacuation system.

CHAPTER 4 PROTECTION FOR MISSION-CRITICAL/MAC I ELECTRONIC

EQUIPMENT SPACES

4-1 OVERVIEW.

Facilities containing areas or rooms with mission-critical/MAC I equipment conform to the fire protection requirements of ANSI/TIA-942-B for 3/4 Rated locations except as indicated in this chapter. This chapter modifies the ANSI/TIA-942-B 3/4 Rated criteria to meet DoD mission needs; however, if conflicts exist, this chapter take precedence.

Follow the guidance in Chapter 2 and Chapter 3 as modified by this chapter.

4-2 FACILITY CONSTRUCTION.

4-2.1 Mission-critical/MAC I information technology equipment is located in buildings of non-combustible construction (IBC Type I construction).

4-2.1.1 Common walls between MAC I information technology equipment and infrastructure support spaces (including spaces with only incidental equipment) are rated at no less than 2-hour fire resistance.

4-2.1.2 Common walls between redundant MAC I information technology equipment are rated at no less than 2-hour fire resistance.

4-2.1.3 Common wall(s) between MAC I information technology equipment areas and adjacent support room(s) of the same MAC I rating are not less than 1-hour fire resistance unless the adjacent areas provide mission redundancy.

4-3 CLEAN AGENT SUPPLEMENTAL FIRE SUPPRESSION.

4-3.1 In addition to the fire suppression features in Chapter 2 and Chapter 3, install a clean agent supplemental fire suppression system for the information technology equipment room(s). The system and clean agent comply with NFPA 2001, Standard on Clean Agent Fire Extinguishing Systems. Procurement of the clean agent complies with amendments to 81 FR 30429, Federal Acquisition Regulation: High Global Warming Potential Hydrofluorocarbons. The clean agent fire suppression system is not an alternative to any of the minimum protective features.

4-3.1.1 NFPA 2001 includes a number of different chemical agents, some of which have been commercialized with listed delivery systems and others allowed by the standard but not commercialized and therefore do not have listed delivery systems.

Only clean agents with listed delivery systems are used.

4-3.1.2 Some clean fire suppression agents in NFPA 2001 have production or use phase-out dates established by regulatory bodies for environmental concerns with ozone-depletion and/or greenhouse gas accumulation. No new systems using clean agents with an established production or use phase-out date are installed. Existing systems using a clean agent with a production or use phase-out date may be maintained, repaired, re-serviced, modernized, renovated, upgraded, or expanded within the limits of the production or phase-out regulations and the service life of the existing components.

4-3.1.3 The clean agent supplemental fire suppression systems protect the entire room/space, including above a suspended ceiling and below a raised floor and within hot/cold aisle containments.

4-3.1.4 A separate listed releasing control unit controls the system. The releasing unit reports activation, trouble, and supervisory indication through the facility fire alarm control unit.

4-3.1.5 Manual system activation of the clean agent supplemental fire suppression system is available at manual stations located adjacent to each required egress door. Clean agent manual activation stations are located inside the room near the egress door but on the opposite side of the door from any manual fire alarm initiation stations (e.g., a pull station marked with “FIRE”). This will minimize the potential of an occupant inadvertently activating the clean agent fire supplemental fire suppression system when they intended only to initiate the building fire alarm.

Note: Manual fire alarm pull stations are not mandated inside information technology rooms unless the room has a door that exits directly to the outside of the building.

4-3.1.5.1 When there is an operator’s control location within the information technology system room, a clean agent manual system activation station is provided within 5 feet (1.5 meters) and accessible from the operator’s control location.

4-3.1.5.2 A clean agent manual system activation station may be provided outside the protected area if the location is under the exclusive control of the mission operator.

Key-operated remote clean agent system activation stations using approved emergency key control systems are allowed.

4-3.1.5.3 Clean agent manual activation stations are distinctively different from manual fire alarm initiation stations and the word “FIRE” must not appear on the clean agent manual activation stations.

4-3.1.5.4 Clean agent manual activation stations are fully enclosed within an approved tamper cover.

4-3.1.6 Clean agent automatic system activation is initiated by the Alarm detection level of the very early warning smoke detection system. (See paragraph 3-3.)

4-3.1.7 The space below a raised floor is always included in the discharge volume unless a separate system is designed for the raised floor space. Only specify agent discharge piping below the raised floor when indicated in NFPA 2001.

4-3.1.8 Clean agent system activation does not disconnect technical power or activate the smoke exhaust system.

4-3.1.9 Clean agent system activation shuts down any equipment cooling system where the air flow passes outside of the clean agent discharge envelope/volume and closes all associated fire and smoke dampers. Equipment cooling system(s) with airflow completely within the discharge envelope/volume continue to operate.

Note: Electronic equipment shutdown may comply with paragraph 2-8 to prevent equipment and room overheating and possible sprinkler system activation.

4-3.1.10 Clean agent system activation shuts down any non-self-contained equipment cooling HVAC systems and closes all non-self-contained equipment cooling fire and smoke dampers.

4-3.2 Water mist or hybrid (water-inert gas) systems may be used as an alternative to the clean agent systems with CFPE (AFCEC/COSM) approval. Water mist systems comply with NFPA 750, Standard on Water Mist Fire Protection Systems.

Hybrid (water-inert gas) systems comply with the manufacturer’s listed design and installation guidance.

4-3.3 Clean agent water mist and hybrid (water-inert gas) systems are designed by a fire protection engineer…