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NFPA 17, Standard for Dry Chemical Extinguishing Systems:2021 Edition

NFPA 17, Standard for Dry Chemical Extinguishing Systems:2021 Edition

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NFPA 17, Standard for Dry Chemical Extinguishing Systems

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NFPA 2021 52
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PDF Pages PDF Title
1 Copyright
Edition
Origin and Development
2 Committee Lists for NFPA-17-2021
5 Chapter 1 : Administration
1.1 * Scope.
6 1.2 Purpose.
1.3 Retroactivity. 1.3.1
1.3.2
1.4 Equivalency.
1.5 Units and Formulas. 1.5.1
1.5.1.1 *
1.5.1.2
1.6 * Qualifications.
Chapter 2 : Referenced Publications
2.1 General.
2.2 NFPA Publications.
7 2.3 Other Publications. 2.3.1 ASME Publications.
2.3.2 ASTM Publications.
2.3.3 IEEE Publications.
2.3.4 UL Publications.
2.3.5 U.S. Government Publications.
2.3.6 Other Publications.
2.4 References for Extracts in Mandatory Sections.
8 Chapter 3 : Definitions
3.1 General.
3.2 NFPA Official Definitions. 3.2.1 * Approved.
3.2.2 * Authority Having Jurisdiction (AHJ).
3.2.3 Labeled.
3.2.4 * Listed.
3.2.5 Shall.
3.2.6 Should.
3.2.7 Standard.
3.3 General Definitions. 3.3.1 Auxiliary Equipment.
3.3.2 Caking.
3.3.3 * Calculation and Design.
9 3.3.4 Clearance.
3.3.5 Discharge Nozzle.
3.3.6 Dry Chemical.
3.3.6.1
3.3.7 Duct. 3.3.7.1
3.3.7.2
3.3.8 Expellant Gas.
3.3.9 Hose.
3.3.10 Indicator.
3.3.11 Inspection.
3.3.12 Lumps.
3.3.13 Maintenance.
3.3.14 Manual. 3.3.14.1 *
3.3.14.2
3.3.15 Operating Devices.
3.3.16 Operation. 3.3.16.1
10 3.3.16.2
3.3.17 * Pipe.
3.3.18 Recharge.
3.3.19 Selector Valve.
3.3.20 Servicing.
3.3.21 Signal.
3.3.22 Trained.
3.3.23 Transport Canada (TC).
3.3.24 U.S. Department of Transportation (DOT).
3.4 Systems Definitions. 3.4.1 Dry Chemical System.
3.4.2 Engineered Systems.
3.4.3 Hand Hose Line System.
3.4.4 Local Application System.
3.4.5 * Pre-Engineered Systems.
3.4.6 Total Flooding System.
11 Chapter 4 : Components
4.1 General. 4.1.1
4.1.2
4.2 Detectors.
4.2.1
4.2.2
4.3 Hose Line. 4.3.1 * Hose.
4.3.2 Hose Nozzle.
4.3.2.1
4.3.3 Hose Line Storage.
4.3.3.1
4.4 Nozzles. 4.4.1 Discharge Nozzles.
4.4.1.1
4.4.1.2
4.4.1.3
4.4.1.4
12 4.4.2 Protective Devices for Discharge Nozzles. 4.4.2.1
4.4.2.2
4.5 Operating Devices. 4.5.1
4.5.1.1
4.5.1.2
4.5.2 Manual Actuators. 4.5.2.1
4.5.2.2
4.5.2.3
4.5.2.3.1
4.5.2.4
4.5.3 Shutoff Devices.
4.5.4 Valves. 4.5.4.1
4.5.4.2
4.5.4.3
13 4.6 Pipe and Fittings. 4.6.1 * General.
4.6.1.1
4.6.1.2
4.6.1.3 *
4.6.1.3.1
4.6.1.3.2
4.6.2
4.6.3 *
4.6.4 *
4.6.5
4.7 Dry Chemical. 4.7.1 *
4.7.2
4.7.3 *
4.8 Expellant Gas. 4.8.1
14 4.8.2
4.9 Electrical Wiring and Equipment.
4.10 Storage Containers. 4.10.1
4.10.2 *
4.10.3
4.11 Indicators.
4.12 Assembly. 4.12.1 *
4.12.2
Chapter 5 : System Requirements
5.1 Use and Limitations. 5.1.1 * Use.
15 5.1.2 Limitations.
5.1.2.1 *
5.1.2.2
5.1.2.3
5.1.2.3.1
5.1.2.3.2
5.1.2.3.3
5.2 Multiple Systems Protecting a Common Hazard. 5.2.1
5.2.2
5.3 Systems Protecting Two or More Hazards. 5.3.1
5.3.2
16 5.4 Dry Chemical Requirements and Distribution. 5.4.1 General. 5.4.1.1 *
5.4.1.2 *
5.4.2 Compensation for Special Conditions.
5.5 Special Considerations. 5.5.1 *
5.5.2
5.5.3
5.5.4
5.5.5
5.5.6
5.5.6.1
5.6 * Personnel Safety. 5.6.1 Safety Requirements. 5.6.1.1
17 5.6.1.2
5.6.1.3
5.6.2 Electrical Clearances. 5.6.2.1
5.6.2.2
5.6.2.3
5.7 * Operation and Control of Systems. 5.7.1 Methods of Actuation. 5.7.1.1
5.7.1.2
5.7.1.3
5.7.1.4
5.7.1.5
5.7.1.6
5.7.1.7 *
18 5.7.1.7.1
5.7.1.8 *
5.7.1.9
5.7.1.10
5.7.1.11
5.7.2 Supervision. 5.7.2.1
5.7.2.1.1 *
5.7.2.2
5.7.3 * Notification.
5.7.4 Connection to the Alarm System.
5.8 Dry Chemical and Expellant Gas Supply. 5.8.1 Quantity.
5.8.2 * Reserve Supply. 5.8.2.1
5.8.2.2
5.8.2.3
19 5.8.2.3.1
5.8.3 Container.
5.8.3.1
5.8.3.2
5.8.3.3 *
5.8.3.4
5.8.3.5
5.8.3.6
5.9 Piping. 5.9.1 * Arrangement and Installation of Pipe and Fittings. 5.9.1.1
5.9.1.2
5.9.1.3
5.9.1.4
5.9.1.4.1 *
5.9.1.4.2
5.9.1.4.3
5.9.1.4.4
5.9.1.4.5
20 5.9.1.4.6
5.9.1.4.7
5.9.1.4.8
5.9.1.5
5.9.1.6
5.9.1.7
5.9.1.8
5.9.1.9
5.9.2 Pipe Size and Nozzle Determination. 5.9.2.1
5.9.2.2
5.9.2.3
5.9.2.3.1
5.9.2.3.2
5.9.2.3.3
5.9.2.4
5.9.2.5
5.9.2.6
21 Chapter 6 : Total Flooding Systems
6.1 * General. 6.1.1
6.1.2
6.1.3
6.1.4
6.1.5
6.1.5.1
6.2 Hazard Specifications. 6.2.1 Enclosure.
6.2.1.1
6.2.1.2
6.2.1.3
6.2.1.4
6.2.2 Leakage and Ventilation.
22 6.2.2.1
6.2.2.2
6.2.2.3 *
6.2.2.4 Volume Allowances.
6.2.2.5 Rate of Application.
6.2.2.5.1
6.2.2.6
6.2.2.6.1
6.2.2.6.2
6.2.2.6.3
6.2.2.6.4
6.2.2.6.5
Chapter 7 : Local Application Systems
7.1 * Uses. 7.1.1
23 7.1.2
7.2 Hazard Specifications. 7.2.1 * Extent of Hazard.
7.2.2
7.2.3 *
7.2.4 * Location.
7.2.5
7.2.6 * Coated Surfaces.
7.2.7 Duration of Discharge.
7.2.7.1
Chapter 8 : Hand Hose Line Systems
8.1 Separate Supplies. 8.1.1
8.1.2
8.1.3
8.1.4
24 8.1.5
8.2 Location, Spacing, and Actuation. 8.2.1 * Location.
8.2.2 Spacing.
8.2.3 Actuation.
8.3 Dry Chemical Requirements. 8.3.1 * Rate and Duration of Discharge.
8.3.1.1
8.3.1.2
8.3.2 Simultaneous Use of Hose Lines.
8.3.3 * Operation of Hose Lines. 8.3.3.1
8.3.3.2
8.4 Training.
Chapter 9 : Pre-Engineered Systems
9.1 Uses. 9.1.1 *
25 9.1.2
9.1.3
9.1.4
9.2 Types of Systems.
9.3 * Commercial Kitchen Hood, Duct, and Cooking Appliance Systems. 9.3.1
9.3.1.1
9.3.2
9.3.2.1
9.3.2.2
9.3.2.3
9.3.3
9.3.4 * Protection of Common Exhaust Duct. 9.3.4.1
26 9.3.4.1.1
9.3.4.1.2
9.3.4.2
9.3.4.3
9.3.4.3.1
9.3.4.3.2
9.3.5 * Shutoff Devices.
9.3.5.1
9.3.5.2 *
9.3.5.3
9.3.5.4
9.3.5.4.1
9.4 Manual Actuation Requirements. 9.4.1
9.4.2
27 9.4.3
9.4.4
9.4.5
9.5 System Annunciation Requirements. 9.5.1
9.5.2
9.6 System Supervision. 9.6.1
9.6.2
9.6.3
9.7 Review and Certification. 9.7.1
9.7.1.1
9.7.2 *
28 9.7.2.1
9.8 * Vehicle Fueling Service Station Systems. 9.8.1
9.8.2
9.8.2.1
9.8.3
9.8.3.1
9.8.4
9.8.4.1
9.8.5
9.8.6
9.9 Systems for the Protection of Mobile Equipment. 9.9.1 *
9.9.2
9.9.3
9.9.3.1
9.9.4
29 9.9.5
9.9.6
9.9.7
9.9.8
9.9.9
9.9.10
9.10 Hand Hose Line Systems. 9.10.1
9.10.2
9.10.3
9.10.4
9.10.4.1
9.10.4.2
9.10.5
9.10.6
9.10.7
30 Chapter 10 : Plans and Acceptance Tests
10.1 Specifications.
10.1.1
10.1.2
10.1.2.1
10.1.3
10.1.3.1
10.1.3.1.1
10.1.4
10.1.5
10.2 Plans.
10.2.1
10.2.2
10.2.2.1
10.2.3
10.2.3.1
10.2.3.2
31 10.2.3.3
10.3 Approval of Plans.
10.3.1
10.4 Approval of Installations.
10.4.1
10.4.2
10.4.2.1
10.4.2.2
10.4.3
10.4.3.1 *
10.4.3.2
10.4.3.3
10.4.3.4
10.4.3.5
10.4.3.6
10.4.3.7
10.4.3.8
32 10.4.4 System Operational Tests.
10.4.5 Return the System to Operational Condition. 10.4.5.1
10.4.5.2
10.4.6 *
10.5 Manual.
Chapter 11 : Inspection, Maintenance, and Recharging
11.1 General Requirements.
11.1.1
11.1.1.1
11.1.1.2
11.1.2 Storage.
11.1.2.1
11.1.3 *
11.1.3.1
33 11.1.4 *
11.1.5 *
11.1.6 Recharge Agents. 11.1.6.1 *
11.1.6.1.1
11.1.6.1.2
11.1.6.1.3
11.1.7
11.2 Owner’s Inspection. 11.2.1
11.2.1.1
11.2.2
11.2.2.1
11.2.3
34 11.2.4
11.3 Maintenance. 11.3.1 *
11.3.1.1
11.3.1.2 Six-Year Internal Examination of Certain Types of Containers. 11.3.1.2.1
11.3.1.2.2
11.3.1.3
11.3.1.3.1 *
11.3.1.3.2
11.3.1.3.3
11.3.1.3.4
11.3.1.3.5 *
11.3.1.3.6
11.3.1.3.7
35 11.3.1.3.8
11.3.1.4
11.3.1.4.1
11.3.1.5 *
11.3.1.6 *
11.3.1.6.1
11.3.1.6.2
11.3.1.7 *
11.3.1.7.1
11.3.1.8 *
11.3.1.9
11.3.1.9.1
11.3.1.10 *
11.3.2 *
11.3.2.1
36 11.3.2.2
11.3.2.3
11.3.3 *
11.3.3.1
11.3.3.2
11.3.3.3
11.3.3.4
11.4 Recharging. 11.4.1
11.4.2
11.5 * Hydrostatic Testing.
11.5.1 *
11.5.1.1
37 11.5.2
11.5.2.1
11.5.2.2
11.5.2.3 *
11.5.3
11.5.4
11.5.5
Annex A : Explanatory Material
51 Annex B : Informational References

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NFPA 17, Standard for Dry Chemical Extinguishing Systems
$61.75