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CLEAN AGENTS 2015
Updates to the NFPA 2001 Standard on Clean Agent Fire Extinguishing Systems 2015 Edition
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APRIL 2015 MO-KAN SFPE CHAPTER MEETING
APRIL 6, 2015
PRESENTED BY C. DAVIS & D. O’DONNELL
Taking Effect in NFPA 2001: 2012 EditionChapter 4 ComponentsSection 4.3.4 Control Equipment• 4.3.4.1, 4.3.4.2 January 1, 2016 (also in 2015
edition)• “Removal of an electric actuator from the agent
storage container discharge(4.3.4.2 Selector) valve that it controls shall result in an audible and visual indication of system impairment at the system releasing control panel”
• 4.3.4.1.2 & 4.3.4.2.2• Does not apply to Chapter 8 Marine Systems with
exception of 8.6 (Class B >6000ft3 cylinder storage within hazard)
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Chapter 2 Referenced PublicationsSection 2.3 Other Publications• NFPA 70 (NEC)
• References 2014 edition
• NFPA 72 (Fire Alarm & Signaling) • References 2013 edition
• ASME Boiler and Pressure Vessel Code• References 2013 edition
• ASME B31.1 Power Piping Code• References 2012 edition
• ANSI/UL 2127 (Inert Gas) & 2166 (Halocarbon Gas) • 2012 Edition, UL aligned to ANSI to ease international efforts
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Chapter 3 DefinitionsSection 3.2 NFPA Official Definitions• 3.2.6 Standard
• “An NFPA Standard, the main text of which contains only mandatory provisions using the word “shall” to indicate requirements and that is in a form generally suitable for mandatory reference by another standard or code or for adoption into law. Nonmandatory provisions are not to be considered a part of the requirements of a standard and shall be located in an appendix, annex, footnote, informational note, or other means as permitted in the NFPA Manuals of Style. When used in a generic sense, such as in the phrase “standards development process” or “standards development activities,” the term “standards” includes all NFPA Standards, including Codes, Standards, Recommended Practices, and Guides.”
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Section 3.3 General Definitions• Two definitions have been added:
• 3.3.28 Recovered Agent• Agent that has been removed from a system and kept for future use or
until it is destroyed, without necessarily testing or processing it in any way.
• 3.3.29 Recycle Agent• Agent that has been recovered, tested, and processed as necessary
and found to be in compliance with the quality requirement of 4.1.2.
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Chapter 4 ComponentsSection 4.1.4 Agent Storage Containers• 4.1.4.4
• Means to determine pressure in containers changed from…”refillable superpressurized containers” to …”containers of inert gas agents, superpressurized liquid agents, and superpressurized liquefied compressed gas agents.• More specific to pressurized containers
• 4.1.4.6• Took out wording on “external heating or cooling” of containers.
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Chapter 4 ComponentsSection 4.2 Distribution• 4.2.1 – Pipe
• Updated reference requirements of B31.1• 4.2.1.1(3) Added – specifies inert gas piping shall use 4.2.1.1.1 and
4.2.1.1.2
• 4.2.1.1.1 Updated to better reflect the common use of pressure reducers in inert gas piping. Highlighted section below added/updated:
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Chapter 4 ComponentsSection 4.2 Distribution continued• Table 4.2.1.1(a) – New storage pressure added to Nitrogen (IG-01) and updated, reduced pressures for
Inergen (IG-55). See Highlighted data below.
• Added 4.2.1.1.2 – Further guidance on pressure reducing device: design pressure for piping based on flow calculation after the pressure reducing device.
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Chapter 4 ComponentsSection 4.2 Distribution continued• Added 4.2.1.1.3 – Piping for pre-engineered systems shall
be designed in accordance with the manufacturers listed manual.
• 4.2.3.2 & 4.2.3.3, Simplifies and highlights that there is to be NO USE OF FITTINGS NOT RATED FOR PROPER PRESSURES!
• Added 4.2.4.2 Flanged valves require proper class of flange to connect.
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Chapter 4 ComponentsSection 4.2 Distribution continued• Added 4.2.5.5 provides guidance on distances from
obstructions required to nozzle location. Also added annex material on this subject.
• Added 4.3.3.5.3 automatic type systems in non occupied spaces do not require manual release. This covers bulb and “Direct” type systems.
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Chapter 5 System Design• Added 5.4.2.1.1 Which requires calibration of cup burner
method equipment and helps to keep the agent manufacturers testing consistent.
• 5.5 Total Flooding Quantity• 5.5.1.1 Added equation for minimum and maximum temperature
concentration calculation per standard requirements• 5.5.1.2 Reference to Total Flooding quantities tables in Annex
moved to 5.5.2.2, this information is still available in the annex.• Replaced with 5.5.1.2, new 5.5.1.2 now requires that the
halocarbon agent concentration calculated at the highest and lowest temps shall be included on the system as-built drawings and flow calculations
• 5.5.2 Equation updated for ease of use
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Chapter 5 System Design Continued
• 5.5.1.2 now requires that agent concentration calculated at the highest and lowest temps shall be included on the system as-built drawings and flow calculations
• 5.6 – Duration of protection – 85% of adjusted minimum design “…shall be held at the highest level of combustibles…” has been changed to “…highest height of protected content…”
• 5.7.1.1 removed – elaborated on what rate of application is, unnecessary
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Chapter 6 Local Application Systems
• 6.4.3.1 – Local App Discharge Time – added wording on mechanical rundown time for extended discharges
• 6.5.3 – Local App – Linear Detection Tubing –Direct type system now allowed.
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Chapter 7 Inspection, Testing, Maintenance, and Training• 7.1.2 – Inspection reports can be filed using electronic
media (ie Building Reports)• Added new 7.1.6 – Clarifies that recovered Clean Agents
“shall not be released” into the atmosphere• Old 7.1.6 became 7.1.7 (Inspection Tag)• Added 7.7.2.1 & 7.7.2.2 Stating that installation
acceptance testing shall be documented in a test report and maintained by the owner for the life of the system
• 7.7.2.4.12 through 7.7.2.4.12.2 Clarifies the pipe pressurization checkout method wording
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• Test Report
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Appendix 7.7.2.1
Changes to Appendix• A.1.6 GWP & ODP Defined
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Changes to Appendix• New Section Added
• A.5.5.3 Considerations and Conditions Requiring Increased Design Factors
• Unclosable Openings• Acid Gas Formation Considerations• Fuel Geometry Considerations• Enclosure Geometry• Obstructions Within the Enclosure
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Changes to Appendix• FSSA (Fire Suppression Systems Association) now
referenced for multiple publications to assist designers.
• A.4.3.1.1 Detection & Control Guide• A.5.1.2.2(28) Pressure Relief Estimating Document• A.7.1.2 Design Guide• A.7.2 Container Guide
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Summary of Primary Changes• Requirement of notification on electrical actuator removal • Recovered/Recycled Agents now defined; recycled
agents permitted• Agent calculation requirement for low and high
temperature of protected space• No manual release required for automatic systems when
unoccupiable & personnel not normally present• Detection tubing permitted for use as nozzle in local app• Annex Changes
• Environmental definitions• FSSA references added• Addition of acceptance test report• Design factor considerations
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Burning Questions? • Upcoming Trends/Concerns within the Industry?
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