1、 Errata NFPA 25 Standard for the Inspection, Testing, and Maintenance of Water-Based Fire Protection Systems2017 Edition Reference: Various Errata No: 25-17-1 The Technical Committee on Inspection, Testing, and Maintenance of Water-Based Protection Systems notes the following errors in the 2017 edit
2、ion of NFPA 25, Standard for the Inspection, Testing, and Maintenance of Water-Based Fire Protection Systems. 1. In Table 5.1.1.2, correct the cross references to read as follows: Table 5.1.1.2 Summary of Sprinkler System Inspection, Testing, and Maintenance Item Frequency Reference Inspection Contr
3、ol valves Chapter 13 Fire department connections Chapter 13 Gauges (wet and deluge systems) Quarterly Chapter 13 Gauges (dry and preaction systems) Monthly/quarterly Chapter 13 Hanger/braces/supports Annually 5.2.3 Heat tracing Per manufacturers requirements 5.2.76 Hydraulic design information sign
4、Annually 5.2.65 Information signs Annually 5.2.7, 5.2.8, 5.2.9 Internal piping condition Chapter 14 Pipe and fittings Annually 5.2.2 Sprinklers Annually 5.2.1 Sprinklers (spare) Annually 5.2.1.4 Supervisory signal devices (except valve supervisory switches) Quarterly 5.2.54 System valves Chapter 13
5、Valve supervisory signal devices Quarterly 5.2.54 Waterflow alarm devices Quarterly 5.2.54 Test Antifreeze solution Annually 5.3.43 Control valves Chapter 13 Gauges 5 years Chapter 13 Main drain Chapter 13 Sprinklers At 50 years and every 10 years thereafter 5.3.1.1.1, 5.3.1.1.1.1, 5.3.1.1.1.2 Sprin
6、klers At 75 years and every 5 years thereafter 5.3.1.1.1.5 Sprinklers (dry) 10 years and every 10 years thereafter 5.3.1.1.1.6 Sprinklers (extra high or greater temperature solder type) 5 years 5.3.1.1.1.4 Sprinklers (fast-response) At 20 years and every 10 years thereafter 5.3.1.1.1.3 Sprinklers (h
7、arsh environments) 5 years 5.3.1.1.2 Supervisory signal devices (except valve supervisory switches) Chapter 13 System valves Chapter 13 Valve supervisory signal devices Chapter 13 Waterflow alarm devices (Mechanical) Quarterly 5.3.32.1 Waterflow alarm devices (vane and pressure switch type) Semiannu
8、ally 5.3.32.2 Maintenance Low-point drains (dry pipe and preaction systems) Chapter 13 Sprinklers and automatic spray nozzles protecting commercial cooking equipment and ventilation systems Annually 5.4.1.7 Valves (all types) Chapter 13 Investigation Obstruction Chapter 14 2. In Table 6.1.1.2, corre
9、ct the cross references to read as follows: Table 6.1.1.2 Summary of Standpipe and Hose Systems Inspection, Testing, and Maintenance Item Frequency Reference Inspection Cabinet Annually 6.2.18 Control valves Chapter 13 Gauges Weekly/quarterly Chapter 13 Hose Annually NFPA 19626.2.5 Hose connection A
10、nnually 6.2.13 Hose nozzle Annually and after each use NFPA 19626.2.6 Hose storage device Annually 6.2.17 Hydraulic design information sign Annually 6.2.32 Hose valves Chapter 13 Hose connection Annually 6.2.1 Piping Annually 6.2.14 Pressure-regulating devices Chapter 13 Test Flow test 5 years 6.3.1
11、 Hose 5 years/3 years NFPA 1962 Hose connections Annually 6.2.1 Hose valves Chapter 13 Hydrostatic test 5 years 6.3.2 Main drain test Chapter 13 Pressure control valve Chapter 13 Pressure-reducing valve Chapter 13 Supervisory signal devices (except valve supervisory switches) Chapter 13 Valve status
12、 test Chapter 13 Valve supervisory devices Chapter 13 Waterflow alarm devices Chapter 13 Maintenance Hose connections Annually Table 6.1.2 Hose valves Chapter 13 Valves (all types) Annually/as needed Chapter 13 3. Correct the cross references in 8.3.3.6.3.3 and 8.3.3.6.3.4 to read as follows: 8.3.3.
13、6.3.3 If the test results are not consistent with the previous annual test, the test shall be repeated using the test arrangement described in 8.3.3.6.3.1. 8.3.3.6.3.4 If testing in accordance with 8.3.3.6.3.1 is not possible, a flowmeter calibration shall be performed and the test shall be repeated
14、. 4. In Table 9.1.1.2, correct the cross references to read as follows: Table 9.1.1.2 Summary of Wat er Storage Tank Inspection, Testing, and Maintenance Item Frequency Reference Inspection Air pressuretanks that have their air pressure source supervised Quarterly 9.2.2.1 Air pressuretanks without t
15、heir air pressure source supervised Monthly 9.2.2.2 Catwalks and ladders Quarterly 9.2.54.1 Check valves Chapter 13 Control valves Chapter 13 Expansion joints Annually 9.2.54.3 Heating system tanks with supervised low temperature alarms connected to constantly attended location Weekly* 9.2.32.1 Heat
16、ing system tanks without supervised low temperature alarms connected to constantly attended location Daily* 9.2.32.2 Hoops and grillage Annually 9.2.54.4 Interior all other tanks 5 years 9.2.65.1.2 Interior steel tanks without corrosion protection 3 years 9.2.65.1.1 Painted/coated surfaces Annually
17、9.2.54.5 Support structure Quarterly 9.2. 54.1 Surrounding area Quarterly 9.2. 54.2 Tank exterior Quarterly 9.2. 54.1 Temperature alarms connected to constantly attended location Monthly* 9.2.43.2 Temperature alarms not connected to constantly attended location Weekly* 9.2.4.3 Water level tanks equi
18、pped with supervised water level alarms connected to constantly attended location Quarterly 9.2.1.1 Water level tanks without supervised water level alarms connected to constantly attended location Monthly 9.2.1.2 Water temperature l ow temperature alarms connected to constantly attended location Mo
19、nthly 9.2.4.2 Water temperature low temperature alarms not connected to constantly attended location Weekly 9.2.4.3 Test High temperature limit switches Monthly* 9.3.4 Level indicators 5 years 9.3.1 Low water temperature alarms Monthly* 9.3.3 Pressure gauges 5 years Chapter 13 Tank heating system Pr
20、ior to heating season 9.3.2 Valve status test Chapter 13 Water level alarms Semiannually 9.3.5 Maintenance Check valves Chapter 13 Control valves Chapter 13 Embankment-supported coated fabric (ESCF) 9.4.6.2 Water level 9.4.2 *Cold weather/heating season only. 5. In Table 9.5.1.1, correct the cross r
21、eferences to read as follows: Table 9.5.1.1 Summary of Automatic Tank Fill Valve Inspection and Testing Item Frequency Reference Inspection Strainers, filters, orifices (inspect/clean) 5 years 13.4.1.2 Enclosure (during cold weather) Daily/weekly 13.4.3.1.1 Exterior Monthly 13.4.3.1.63 Interior Annu
22、ally/5 years 13.4.3.1.74 Test Automatic tank fill valve Annually 9.5.3 6. In Table 10.1.1.2, correct the cross references to read as follows: Table 10.1.1.2 Summary of Wat er Spray Fixed System Inspection, Testing, and Maintenance Item Frequency Reference Inspection Backflow preventer Chapter 13 Che
23、ck valves Chapter 13 Control valves Weekly (sealed) Chapter 13 Control valves Monthly (locked, supervised) Chapter 13 Deluge valve 10.2.2, Chapter 13 Detection systems NFPA 72 Detector check valves Chapter 13 Drainage Quarterly 10.2.87 Electric motor 10.2.98, Chapter 8 Engine drive 10.2.98, Chapter
24、8 Fire pump 10.2.98, Chapter 8 Fittings Annually 10.2.43, 10.2.43.1 Fittings (rubber-gasketed) Annually and after each system activation 10.2.43.1, A.10.2.4.1 Gravity tanks 10.2.109, Chapter 9 Hangers, braces, and supports Annually and after each system activation 10.2.43.2 Heat (deluge valve house)
25、 Daily/weekly 10.2.1.5, Chapter 13 Nozzles Annually and after each system activation 10.2.1.1, 10.2.1.2, 10.2.1.6, 10.2.5.1, 10.2.5.210.2.4 Pipe Annually and after each system activation 10.2.3.1.1, 10.2.1.2, 10.2.4, 10.2.4.1 Pressure tank 10.2.109, Chapter 9 Steam driver 10.2.98, Chapter 8 Strainer
26、s Manufacturers instruction 10.2.76 Suction tanks 10.2.109, Chapter 9 Water supply piping 10.2.6.1, 105.2.6.2 UHSWSS controllers Each shift 10.4.3 UHSWSS detectors Monthly 10.4.2 UHSWSS valves Each shift 10.4.4 Operational Test Backflow preventer Chapter 13 Check valves Chapter 13 Control valves Ann
27、ually 13.3.3.1 Deluge valve 10.2.2, Chapter 13 Detection systems NFPA 72 Detector check valve Chapter 13 Electric motor 10.2. 98, Chapter 8 Engine drive 10.2. 98, Chapter 8 Fire pump 10.2. 98, Chapter 8 Gravity tanks 10.2.109, Chapter 9 Main drain test Annually Chapter 13.3.3.4 Manual release Annual
28、ly 10.2.1.3, 10.3.63.5 Nozzles Annually 10.2.1.3, 10.2.1.6, Section 10.3 Pressure tank Section 10.2.9, Chapter 9 Steam driver 10.2.98, Chapter 8 Strainers Annually 10.2.1.3, 10.2.1.7, 10.2.76 Suction tanks 10.2.109, Chapter 9 Waterflow alarm Quarterly Chapter 5 Water spray system test Annually Secti
29、on 10.3, Chapter 13 Water supply flow test 7.3.1 UHSWSS Annually Section 10.4 Valve status test 13.3.1.2.13.4 Maintenance Backflow preventer Chapter 13 Check valves Chapter 13 Control valves Annually 10.2.1.4, Chapter 13 Deluge valve 10.2.2, Chapter 13 Detection systems NFPA 72 Detector check valve
30、Chapter 13 Electric motor 10.2.98, Chapter 8 Engine drive 10.2.98, Chapter 8 Fire pump 10.2.98, Chapter 8 Gravity tanks 10.2.109, Chapter 9 Pressure tank 10.2.69, Chapter 9 Steam driver 10.2.98, Chapter 8 Strainers Annually 10.2.1.4, 10.2.1.6, 10.2.76 Strainers (baskets/screen) 5 years 10.2.1.4, 10.
31、2.1.7, A.10.2.76 Suction tanks 10.2.109, Chapter 9 Water spray system Annually 10.2.1.4, Chapter 13 7. In Table 11.1.1.2, correct the cross references to read as follows: Table 11.1.1.2 Summary of Foam-Water Sprinkler System Inspect ion, Testing, and Maintenance System/Component Frequency Reference
32、Inspection Control valve(s) Weekly/monthly Chapter 13 Deluge/preaction valve(s) 11.2.1, Chapter 13 Detection system See NFPA 72 11.2.2 Discharge device location (spray nozzle) Monthly 11.2.54 Discharge device location (sprinkler) Annually 11.2.54 Discharge device position (spray nozzle) Monthly 11.2
33、.54 Discharge device position (sprinkler) Annually 11.2.54 Drainage in system area Quarterly 11.2.87 Fire pump(s) Chapter 8 Fittings corrosion Annually 11.2.32 Fittings damage Annually 11.2.32 Foam concentrate strainer(s) Quarterly 11.2.7.26.4 Gauges See Chapter 13 Chapter 13 Hangers/braces/supports
34、 Annually 11.2.3 Pipe corrosion Annually 11.2.32 Pipe damage Annually 11.2.32 Proportioning system(s) all Monthly 11.2.98 Strainer(s) Mainline 5 years 11.2.6.1 Water supply piping 11.2.65.1 Water supply tank(s) Chapter 9 Waterflow devices See Chapter 13 Chapter 13 Test Backflow preventer(s) Annually
35、 Chapter 13 Complete foam-water sprinkler system(s) (operational test) Annually 11.3.2, 11.3.3 Control valve(s) See Chapter 13 Chapter 13 Deluge/preaction valve(s) See Chapter 13 11.2.1 Detection system See NFPA 72 11.2.2 Discharge device location Annually 11.3.2.67 Discharge device obstruction Annu
36、ally 11.3.2.67 Discharge device position Annually 11.3.2.67 Fire pump(s) See Chapter 8 Foam concentrate strainer(s) Annually 11.2.7.2 Foam-water solution Annually 11.3.5 Manual actuation device(s) Annually 11.3.4 Proportioning system(s) all Annually 11.2.9 Valve status test Chapter 13 Water supply f
37、low test 5 years 7.3.1 Water supply piping Annually Chapter 10 Water supply tank(s) See Chapter 9 Waterflow devices See Chapter 13 Chapter 13 Maintenance Backflow preventer(s) See Chapter 13 Bladder tank type Foam concentrate tank hydrostatic test 10 years 11.4.4.2 Sight glass 10 years 11.4.4.1 Chec
38、k valve(s) See Chapter 13 Control valve(s) See Chapter 13 Deluge/preaction valves See Chapter 13 11.2.1 Detection system See NFPA 72 11.2.2 Detector check valve(s) See Chapter 13 Fire pump(s) See Chapter 8 Foam concentrate pump operation Monthly 11.4.6.1, 11.4.7.1 Foam concentrate samples Annually 1
39、1.2.109 Foam concentrate strainer(s) Quarterly Section 11.4 In-line balanced pressure type Balancing valve diaphragm 5 years 11.4.7.3 Foam concentrate pump(s) 5 years (see Note) 11.4.7.2 Foam concentrate tank 10 years 11.4.7.4 Line type Foam concentrate tank corrosion and pickup pipes 10 years 11.4.
40、5.1 Foam concentrate tank drain and flush 10 years 11.4.5.2 Pressure vacuum vents 5 years 11.4.8 Proportioning system(s) standard pressure type Ball drip (automatic type) drain valves 5 years 11.4.3.1 Corrosion and hydrostatic test 10 years 11.4.3.34 Foam concentrate tank drain and flush 10 years 11
41、.4.3.2 Standard balanced pressure type Balancing valve diaphragm 5 years 11.4.6.3 Foam concentrate pump(s) 5 years (see Note) 11.4.6.2 Foam concentrate tank 10 years 11.4.6.4 Strainer(s) mainline 5 years 11.2.76.1 Water supply Annually 11.2.6.15 Water supply tank(s) See Chapter 9 Chapter 9 Note: Als
42、o refer to manufacturers instructions and frequency. Maintenance intervals other than preventive maintenance are not provided, as they depend on the results of the visual inspections and operational tests. For foam-water sprinkler systems in aircraft hangars, refer to the inspection, test, and maint
43、enance requirements of NFPA 409, Table 11.1.1. 8. In Table 13.1.1.2, correct the cross references to read as follows: Table 13.1.1.2 Summary of Valves, Valve Components, and Trim Inspection, Testing, and Maintenance Item Frequency Reference Inspection Backflow Prevention Assemblies Reduced pressure
44、Weekly/monthly 13.67.1 Reduced-pressure detectors Weekly/monthly 13.67.1 Check Valves Interior 5 years 13.4.2.1 Control Valves Sealed Weekly 13.3.2.1 Locked or electrically supervised Monthly 13.3.2.1.1 Dry Pipe Valves/ Quick-Opening Devices Gauges Weekly/monthly 13.2.7 Enclosure (during cold weathe
45、r) Daily/weekly 13.4.4.15.1 Exterior Monthly 13.4.4.1.45.1.3 Interior Annually 13.4.4.1.55.1.4 Strainers, filters, orifices 5 years 13.4.4.1.65.1.5 Deluge Valves Enclosure (during cold weather) Daily/weekly 13.4.4.1 Exterior Monthly 13.4.4.1.53 Interior Annually/5 years 13.4.4.1.64 Strainers, filter
46、s, orifices 5 years 13.4.4.1.75 Fire Department Connections Quarterly 13.78.1 Preaction Valves Enclosure (during cold weather) Daily/weekly 13.4.3.1 Exterior Monthly 13.4.3.1.63 Interior Annually/5 years 13.4.3.1.74 Strainers, filters, orifices 5 years 13.4.3.1.85 Pressure-Reducing and Relief Valves
47、 Sprinkler systems Quarterly 13.5.1.1 Hose connections Annually 13.5.2.1 Hose racks Annually 13.5.3.1 Fire pumps Casing relief valves Weekly 13.5.76.1, 13.5.7.1.1 Pressure-relief valves Weekly 13.5.76.2, 13.5.7.2.1 Valve Supervisory Signal Initiating Device Semiannual 13.3.2.1.23 Supervisory Signal
48、Devices (except valve supervisory switches) Quarterly 13.2.8.1 Alarm Valves Exterior Monthly 13.4.1.1 Interior 5 years 13.4.1.2 Strainers, filters, orifices 5 years 13.4.1.2 Hose Valves Quarterly 13.6.1 Testing Backflow Prevention Assemblies Annually 13.7.2 Control Valves Position Annually 13.3.3.1
49、Operation Annually 13.3.3.1 Valve Status Test After the control valve is reopened 13.3.3.4 Supervisory Annually 13.3.3.5 Deluge Valves Trip test Annually/3 years 13.4.4.2.3 Dry Pipe Valves/ Quick-Opening Devices Air leakage 3 years 13.4.45.2.9 Priming water Quarterly 13.4.45.2.1 Low air pressure alarm Quarterly 13.4.45.2.6 Quick-opening devices Quarterly 13.4.45.2.4 Trip test Annually 13.4.45.2.2 Full flow trip test 3 years 13.4.45.2.2.
