Technical Committee on Fire Pumps (FIM-AAA)

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Technical Committee on Fire Pumps (FIM-AAA)

M E M O R A N D U M

DATE: October 2, 2014

TO: Principal and Alternate Members of the Technical Committee on Fire Pumps

(FIM-AAA)

FROM: Chad Duffy, NFPA Staff Liaison

Office: (617) 984-7562 Email: [email protected]

SUBJECT: AGENDA – NFPA 20 Second Draft Meeting (Annual 2015)

Enclosed is the agenda for the Second Draft meeting for NFPA 20, Standard on the Installation of

Stationary Pumps for Fire Protection, which will be held at the UL LLC office in Northbrook, IL

8:00am to 5:00pm CDT on Tuesday October 21, 2014, and 8:00am to 5:00pm on Wednesday

October 22, 2014.

Please submit requests for additional agenda items to the chair at least seven days prior to the

meeting, and notify the chair and staff liaison as soon as possible if you plan to introduce any

Second revisions at the meeting.

All NFPA Technical Committee meetings are open to the public. Please contact me for

information on attending a meeting as a guest. Read NFPA's Regulations Governing the

Development of NFPA Standards (Section 3.3.3.3) for further information.

Additional Meeting Information:

See the Meeting Notice on the Document Information Page (www.nfpa.org/20next) for meeting

location details. If you have any questions, please feel free to contact Elena Carroll, Project

Administrator at 617-984-7952 or by email [email protected].

C. Standards Administration

mailto:[email protected]

http://www.nfpa.org/codes-and-standards/standards-development-process/regulations-directory-and-forms

http://www.nfpa.org/codes-and-standards/standards-development-process/regulations-directory-and-forms

http://www.nfpa.org/20next

http://www.nfpa.org/20next


Technical Committee on Fire Pumps (FIM-AAA) NFPA 20 Second Draft Meeting (Annual 2015)

Tuesday, Oct.21, 2014 and Wednesday, Oct. 22, 2014, 8:00am – 5:00pm CDT

UL LLC, 333 Pfingsten Road, Northbrook, IL

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AGENDA

Tuesday, October 21, 2014

1. Call to Order – 8:00 AM

2. Introductions and Attendance

3. Review Agenda

4. NFPA Staff Liaison Presentation and Review of Key Dates in Current Cycle

5. Chairman Comments

6. Approval of Previous Meeting Minutes

7. Brief discussion of Controller Connectivity

8. Act on Public Comments for NFPA 20- Tentative order of presentation

a. Task Group 9 – Controller Connectivity James Nasby – Chair b. Task Group 1 - Chapter 4, 6 & 7 Darrell Snyder – Chair c. Task Group 2 – Chapter 5 Dave Fuller - Chair d. Task Group 3 – Chapter 8 Jennifer McGrath - Chair e. Task Group 4 – Chapters 9 & 10 John Kovacik – Chair f. Task Group 5 – Chapter 11 & 12 John Whitney – Chair g. Task Group 6 – Chapters 13 Alan Dorini – Chair h. Task Group 7 – Chapter 14 Bill Harvey – Chair i. Task Group 11 – Table A.14.2.6.4 j. Task Group 10 – Coordination with NFPA 25 John Kovacik - Chair k. Task Group 8 – Electric Grid Reliability Dana Haagensen – Chair

9. Adjourn - TBD

Wednesday, October 22, 2014

1. Call to Order – 8:00 AM

2. Complete Action on Public Comment for NFPA 20

3. Dissolution of current task groups

4. New business

5. Adjourn Meeting – 5:00 PM

Please submit requests for additional agenda items to the chair at least seven days prior to

the meeting.




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Please notify the chair and staff liaison as soon as possible if you plan to introduce any

committee input at the meeting.

Key Dates for the Annual 2015 Revision Cycle

Proposal Closing Date July 8, 2013

Final Date for First Draft Meeting December 13,

2013

Posting of First Draft and TC Ballot January 1, 2014

Ballots Returned By February 21, 2014

Post Final First Draft March 7, 2014

Comment Closing Date May 16, 2014

Final Date for Second Draft Meeting October 31, 2014

Posting of Second Draft and TC Ballot December12, 2014

Ballots Returned By January 2, 2014

Posting Final Second Draft January 16, 2015

Closing Date for Notice of Intent to Make a Motion

(NITMAM) March 6, 2015

Issuance of Consent Document (No NITMAMs) May 26, 2015

NFPA Annual Meeting June 22-25, 2015

Issuance of Document with NITMAM August 20, 2015

Technical Committee deadlines are in bold.




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Meeting Preparation Committee members are strongly encouraged to review the published comments prior to the

meeting and to be prepared to act on each item.

Handout materials should be submitted to the chair at least seven days prior to the meeting.

Only one posting of the comments will be made; it will be arranged in section/order and will be

pre-numbered. This will be posted to the NFPA Document information pages located at

www.nfpa.org/20. If you have trouble accessing the website please contact Elena Carroll at

[email protected].

Mandatory Materials:

Last edition of the standard

Meeting agenda

Public input/comments

Committee Officers' Guide (Chairs)

Roberts’ Rules of Order (Chairs; An abbreviated version may be found in the

Committee Officer’s Guide)

Optional Materials:

NFPA Annual Directory

NFPA Manual of Style

Prepared committee input/comments (If applicable)

Regulations and Guiding Documents All committee members are expected to behave in accordance with the Guide for the Conduct of

Participants in the NFPA Codes and Standards Development Process.

All actions during and following the committee meetings will be governed in accordance with the

Regulations Governing the Development of NFPA Standards. Failure to comply with these

regulations could result in challenges to the standards-making process. A successful challenge on

procedural grounds could prevent or delay publication of the document.

The style of the document must comply with the Manual of Style for NFPA Technical Committee

Documents.

http://www.nfpa.org/20





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General Procedures for Meetings

Use of tape recorders or other means capable of producing verbatim transcriptions of any

NFPA Committee Meeting is not permitted.

Attendance at all NFPA Committee Meetings is open. All guests must sign in and identify

their affiliation.

Participation in NFPA Committee Meetings is generally limited to committee members

and NFPA staff. Participation by guests is limited to individuals, who have received prior

approval from the chair to address the committee on a particular item, or who wish to speak

regarding public input or comments that they submitted.

The chairman reserves the right to limit the amount of time available for any presentation.

No interviews will be allowed in the meeting room at any time, including breaks.

All attendees are reminded that formal votes of committee members will be secured by

letter ballot. Voting at this meeting is used to establish a sense of agreement, but only the

results of the formal letter ballot will determine the official action of the committee.

Note to Special Experts: Particular attention is called to Section 3.3(e) of the NFPA Guide

for the Conduct of Participants in the NFPA Codes and Standards Development Process in

the NFPA Directory. This section requires committee members to declare any interest they

may represent, other than their official designation as shown on the committee roster. This

typically occurs when a special expert is retained by and represents another interest

category on a particular subject. If such a situation exists on a specific issue or issues, the

committee member shall declare those interests to the committee and refrain from voting

on any action relating to those issues.

Smoking is not permitted at NFPA Committee Meetings.

NEW PROCESS ACTIONS AND MOTIONS

Possible Action #1: Accept Public Comment (exactly as it is)

Action Required Sample motion

Create a Second Revision I move to create a Second Revision using PC #

______.

Possible action #2: Reject but see (revise submitted text)


Step 1 Create a Second Revision based on a

Public Comment

I move to create a Second Revision based on PC # _____with the following changes to the text . .

.

Step 2 If the revision is related to multiple PCs, respond to all of them together using the

cart function

I move to create a Second Revision based on PC # ____and incorporating PC #s _____with the

following changes to the text . . .

Possible action #3: Reject (no change to the standard)


Generate a statement (substantiation) I move to reject PC # ____ with the following

substantiation . . .

Possible Action #4: Reject but hold (new material)


Reject Public Comment for this cycle, but

save for next revision cycle

I move to reject PC # ____ but hold it for consideration during the First Draft meeting next

cycle.

Attachment #1:

Previous Meeting Minutes

MINUTES of the

NFPA 20 Public Input meeting

Orlando, FL – October 1 thru 3, 2013

Tuesday; October 1

1. Chairman Gayle Pennel called the meeting to order at 8 AM.

2. A presentation was furnished by Doug Stevens regarding transducers.

3. Recessed in order for the Task Groups to deliberate.

4. Reconvened at 1:00 PM.

5. All attendees made self-Introductions; See attached attendance.

6. Staff Liaison Chad Duffy addressed the revised Standard Development Process.

7. Chairman Pennel provided standard meeting instructions

8. Staff Liaison Chad Duffy instructed Technical Committee on Roster update and attendance log.

9. Chairman Pennel called for a motion to accept minutes of October 2011 ROC meeting of the

TECHNICAL COMMITTEE in San Antonio, TX. Motion passed unanimously.

10. A presentation was furnished by Jim Nasby regarding electrical connectivity.

11. Technical Committee began the review and action process on 159 public input proposals

beginning with Task Group reports and actions:

a. Task Group on Chps 4, 6, &7 by Darrell Snyder

b. Task Group on Chp 5 by David Fuller

c. Task Group on Chp 8 by Jennifer McGrath

d. Task Group on Chps 9 & 10 by Hugh Castles

e. Task Group on Chps 11 & 12 by John Whitney

f. Task Group on Chp 13 by Alan Dorini

g. Task Group on Chp 14 by Bill Harvey

h. Task Group on Electric Grid Reliability by Dana Haagensen

12. Session recessed at 6:10PM

Wednesday; October 2

13. Technical Committee reconvened at 8:00 AM on 10/2 and continued the review and action

process on the Public Input proposals beginning with unfinished Task Group reports and

actions:,

14. Chairman Pennel entertained a discussion by Victoria Valentine (NFPA 13) regarding Hanging

and Bracing.

15. Technical Committee continued with the review and action process on remaining Public Input

proposals

16. Session recessed at 6:25PM

Thursday; October 3

17. Technical Committee reconvened at 8:00 AM on 10/3 and continued the review and action

process on the remaining Public Input proposals

18. Chairman Pennel announced a ballot for this NFPA 20 meeting on Public Input would be

forwarded to the Technical Committee members for their official vote.

19. Chairman Pennel announced that the next meeting will likely be scheduled in August,

September, or October 2014. Exact date and location to be announced in the future.

20. Chairman Pennel called for a motion to adjourn at 12:15 PM. Motion passed unanimously.

Respectfully submitted,

R. T. Leicht, Secretary

Attendees:

Gayle Pennel, Chair R. T. Leicht, Secretary Chad Duffy, NFPA Staff Liaison Principals

Michael Aaron Timothy Ballengee James Beals Marinus Both Pat Brock Hugh Castles Stephen Clark Mohammad Dadgardoust Alan Dorini David Fuller Dana Haagensen David hague Bill Harvey Hatem Kheir John Kovacik Jennifer McGrath Charles McKnight James Nasby Jeffrey Roberts Michael Rothmier Richard Schneider Darrell Snyder Terry Victor John Whitney

Alternates Kerry Bell Brad Cronin Jerald Huff Kenneth Isman Floyd Luinstra William Stelter Thomas Wellen Guests Peter Schwab Brian Buscler Kevin Kunkler Tim Jordan Les Andree Rogen Montenbeault Steven Baird Matt Paine Doug Stephens Victoria Valentine

Attachment #2: Public Comment/20

Public Comment No. 33-NFPA 20-2014 [ Section No. 3.3.41 ]

3.3.41 Record Drawing (As-Built).

Drawings that document the installed layout, including piping and the location of all devices, appliances,wiring sequences, wiring methods, and connections to the components of the system as installedA design, working drawing, or as-built drawing that is submitted as the final record of documentation for theproject .

Statement of Problem and Substantiation for Public Comment

This puts the section back to the language in the previous edition. The revision was taken from NFPA 72 and uses terms that are not common in the fire pump industry. Traditionally, "as built" drawings are prepared by the sprinkler contractor and do not include wiring diagrams or wiring sequences. These might be provided by the electrician or the controller manufacturer, but they are separate from the as built drawings that would show the water-filled pipe provided by the sprinkler contractor.

Related Item

First Revision No. 3-NFPA 20-2013 [Section No. 3.3.41]

Submitter Information Verification

Submitter Full Name: Kenneth Isman

Organization: National Fire Sprinkler Association

Street Address:

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Submittal Date: Thu May 08 16:22:22 EDT 2014

National Fire Protection Association Report http://submittals.nfpa.org/TerraViewWeb/ContentFetcher?commentPara...

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4.3.1

In the event of fire pump operation that is not a part of a scheduled weekly or monthly churn test , qualifiedpersonnel shall respond to the fire pump location to determine that the fire pump is operating in asatisfactory manner.


First Revisions 58 and 59 permit an automatic timer to shut off the fire pump. This implies that the committee intends to allow fire pumps to run unattended during the weekly or monthly churn test. While we are not particularly in favor of that idea, we note that such unattended running of the pump would violate this section, so it needs to be modified. We don't know how the committee intends for the data collected during the test to be recorded without a person present in the pump room, but assuming that a building owner could figure out how to record this data remotely, it is possible that the pump room could be unattended.

Related Item

First Revision No. 58-NFPA 20-2013 [New Section after 10.5.2.6.3]

First Revision No. 59-NFPA 20-2013 [Section No. 10.5.4.2]




Affilliation: NFSA E&S Committee

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Public Comment No. 39-NFPA 20-2014 [ Section No. 4.13.1.3 ]

4.13.1.3 Fire Pump Buildings or Rooms with Diesel Engines.

Fire pump buildings or rooms enclosing diesel engine pump drivers and day tanks shall be protected withan automatic sprinkler system installed in accordance with NFPA 13 as an Extra Hazard Group 2occupancy.

4.13.1.3.1 Diesel fire pump controllers shall be protected from the sprinkler spray or provided with aNational Electrical Manufacturers Association (NEMA) Type 4, waterproof enclosure(s) or an enclosure(s)with an ingress protection (IP) rating of IP66.


The minimum enclosure required by NFPA 20, paragraph 12.3.3.1.1 is a NEMA type 2. This is not suitable for sprinkler spray. It is only suitable for dripping water from the vertical. Spray from a sprinkler head can directly enter a type 2 enclosure and potentially damage or destroy the controller.

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Submitter Full Name: William Stelter

Organization: Master Control Systems, Inc.

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Submittal Date: Sat May 10 09:58:54 EDT 2014


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4.13.1.4 Fire Pump Buildings or Rooms with Electric Drivers.

For buildings that are required to be sprinklered, fire pump buildings or rooms enclosing electric fire pumpdrivers shall be protected with an automatic sprinkler system installed in accordance with NFPA 13 as anOrdinary Hazard Group 1 occupancy.

4.13.1.4.1 Electric fire pump controllers shall be protected from the sprinkler spray or provided with aNational Electrical Manufacturers Association (NEMA) Type 4, waterproof enclosure(s) or an enclosure(s)with an ingress protection (IP) rating of IP66.


The minimum enclosure required by NFPA 20, paragraph 10.3.3.1 is a NEMA type 2. This is not suitable for sprinkler spray. It is only suitable for dripping water from the vertical. Spray from a sprinkler head can directly enter a type 2 enclosure and potentially damage or destroy the controller.

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4.13.1.4 Fire Pump Buildings or Rooms with Electric Drivers.

For buildings that are required to be sprinklered, fire pump buildings or rooms enclosing electric fire pumpdrivers shall be protected with an automatic sprinkler system installed in accordance with NFPA 13 as anOrdinary Hazard Group 1 occupancy.

Delete this new proposed clause.


Delete this new clause. No reason has been given to deviate from Table 4.12.1.1.2. No new evidence has been given to indicate that an electric fire pump is more of a fire hazard than previously. Further, spraying fire water on electical equipment (motor and controller) is not good practice. This especially since the controller is protected only from vertical dripping water, wheras fire water from sprinklers is not only vertical.

Related Item



Submitter Full Name: James Nasby

Organization: Columbia Engineering

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Submittal Date: Mon Apr 14 17:52:01 EDT 2014


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Public Comment No. 51-NFPA 20-2014 [ Section No. 4.13.2.1.1 [Excluding any

Sub-Sections] ]

Except as provided in 4.13.2.1.1.1, fire pump rooms not directly accessible from the outside shall beaccessible through an enclosed passageway from an enclosed stairway or exterior exit, provided neither ofwhich are part of a required means of egress .


NFPA's Building Code Development Committee (BCDC) agrees that a passageway from the exterior to a fire pump room is acceptable. We think it should not interfere with a required means of egress. This Public Comment is related to Public Input #134 but revises the text from Public Input #134. This allows the existing access from a room that is normally unoccupied, and therefore not needing a means of egress.

This change does not affect the FR30 for a local application.

Related Item

Public Input No. 134-NFPA 20-2013 [Section No. 4.12.2.1.1]


Submitter Full Name: Jim Muir

Organization: Building Safety Division, Clark County, Washington

Affilliation: NFPA's Building Code Development Committee (BCDC)

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Public Comment No. 10-NFPA 20-2014 [ Section No. 4.19.7.2 [Excluding any

Sub-Sections] ]

Where pump discharge water is piped back to pump suction and the pump is driven by a diesel engine withheat exchanger cooling, the controller shall provide a visual indicator and audible alarm and stop the enginewhen a high cooling water temperature signal as required by 11.2.4.4.8 is received, provided there are noactive emergency requirements for the pump to run. This includes; fire water demand, remote switchactuation and deluge valve or fire detection signal to run.


As written, the test in not very enforceable, if at all, since no definition is given for "active emergency requirements for the pump to run". This is too esoteric as well as too vague.

Related Item

First Revision No. 75-NFPA 20-2013 [Section No. 4.18.7.2 [Excluding any Sub-Sections]]




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Public Comment No. 41-NFPA 20-2014 [ Section No. 4.20.2.9.2 ]

4.20.2.9.2

Series fire pump controller(s) shall be provided with the extra contacts for remote indication in accordancewith 4.20.2.9.1.1 or 4.20.2.9.1.2.

4.20.2.9.2.1

Where other means are used to communicate this information, the extra contacts in 4.20.2.9.2 are notrequired.


To provide all the information and signals required in 4.20.2.2 and 4.20.2.9 a network connection will most likely be supplied between controllers. This comment will allow signals by extra contacts and by other means such as a network connection.

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4.28.4.6

Retroactive installation of a backflow prevention device shall not reduce the suction pressure below thatpermitted in this standard and accepted by the authority having jurisdiction. This shall not apply tobackflow prevention devices retroactively installed prior to the adoption of the adoption of this edition of thisstandard.


It is not clear that extant installations need not comply with this new requirement since the term "retroactive installation" is used.

Related Item

First Revision No. 36-NFPA 20-2013 [New Section after 4.27.4.5]




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4.28.4.6

Retroactive installation of a backflow prevention device shall not reduce the suction pressure below thatpermitted in this standard and accepted by the authority having jurisdiction. This shall not apply tobackflow prevention devices retroactively installed prior to the adoption of the adoption of this edition of thisstandard.


It is not clear that extant installations need not comply with this new requirement since the term "retroactive installation" is used.

Related Item

First Revision No. 36-NFPA 20-2013 [New Section after 4.27.4.5]




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4.30.1

A packaged fire pump assembly, with or without an enclosure, shall meet all of the following requirements:

(1) The components shall be assembled and affixed onto a steel framing structure.

(2) Welders shall be qualified in accordance with the Section 9 of ASME Boiler and Pressure Vessel Codeor with the American Welding Society AWS D1.1, Structural Welding Code — Steel.

(1) The

assembly shall be listed for fire pump service.

(2) The total assembly shall be engineered and designed by a system designer as referenced in 4.3.2.

(3) All plans and data sheets shall be submitted and reviewed by the authority having jurisdiction, withcopies of the stamped approved submittals used in the assembly and for record keeping.

Additional Proposed Changes

File Name Description Approved

20_Keeping_Comment_4-29-1.pdf PC form


The Committee Statement did not provide a satisfactory explanation as to why a prepackaged fire pump assembly would need to be listed. It only made some vague reference to problems with some pump packages. It did not offer any details as to what these problems may be, so they cannot be addressed at this phase. Concerning problems with prepackaged fire pump assemblies however, it is hard to image how they could bemore severe than those associated with fire pump systems that are taken to the job site in component pieces and assembled there in the field.Additionally, the Committee Statement did not offer any comment on the Substantiation (copied below for reference) that was provided with the Public Input. It did not speak to the points about the current requirement:- Limiting who can build prepackaged assemblies;- Limiting the ability to provide customized skids to meet a client’s specific needs;- That there should be no differences in the acceptability of prepackaged assemblies vs. systems assembled on the job sites; and- The fallacy of the previous cycle Proposals, 20-16 & 20-17 attributing unit responsibility to the fire pump manufacturer.

Public Input Substantiation:There is no need to require a packaged fire pump assembly to be specifically listed. This requirement basically limits the supply of packaged fire pump assemblies to ones produced solely by fire pump manufacturers and limits the ability of fire protection contractors to supply customized skids to suit a client’s specific needs.There should be no differences in the acceptability between a package that a contractor prepares off site and ships preassembled to the job site, from one that is taken to the job site in its component pieces and is assembled there. They are both fire pump units that must be installed, inspected and tested in the same manner.During the previous revision cycle, Proposals 20-16 and 20-17 argued that it is the fire pump manufacturer that has unit responsibility, but this is not correct. As noted in A.4.4.1, the entity designated as having unit responsibility is responsible for the pump, the driver, the controller, the transfer switch and the accessories. Each of these components is generally made by a different manufacturer, so none of them would be the single entity that could answer and resolve all problems. Thus the unit responsibility must move further up the supply chain. Naturally though, the entity with unit responsibility often has to consult with one or more of the manufacturers to resolve any questions or problems.As noted, it should be no different, no matter where or in what order the components are assembled.


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Related Item

Committee Input No. 24-NFPA 20-2013 [Section No. 4.29.1]


Submitter Full Name: Larry Keeping

Organization: Professional Loss Control

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Submittal Date: Thu Apr 24 13:43:25 EDT 2014


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Public Comment No. 34-NFPA 20-2014 [ Section No. 5.5 ]

5.5 Auxiliary Power.

Where electric motors are used, a reliable emergency source of power in or a back-up fire pump inaccordance with Section 9.6 3 shall be provided for the fire pump installation.


A diesel engine back-up fire pump should be permitted as an alternative to a generator. Chapter 9 already allows this and Chapter 5 should not over-ride Chapter 9.

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First Revision No. 44-NFPA 20-2013 [Section No. 5.5]





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5.6.1.4

Each refill valve shall be sized and arranged to independently refill the tank in a maximum time of 8hours. supply the system fiure protection demand. I.E.: Revert to original wording.


This section applies to "Very Tall Buildings" where the building height exceeds the pumping capacity of the fire department apparatus. While I agree that in certain circumstances the refill rate being equal to the fire protection demand can be difficult to achieve, the proposed change to an 8 hour refill time is not sufficent to ensure a reasonable refill rate to maintain building fire protection. In most cases the water supply duration requirement will be 30 or 60 minutes total. Going from a 1:1 to a 1:16 or 1:8 refill ratio leaves the building without fire protection for far too long in context of a very tall building where evacuation times are lenghthy and/or protect in place stratgies are used and there is sole reliance on the building fire protection water supply.

The original requirements were written to permit up to 1/2 of the total stored demand to be out of service with the understanding that refill rate would compensate for the storage out of service. Where the refill comes from a standpipe below this can be accomplished at minimal cost (larger refill pipe and valve from the top of a standpipe to a tank). For a ground level tank the municipal supply must make up the refill. The originally required refill rate is a minimal cost item that should apply to all high rise building where evacuation is impractical.

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5.6.1.4

Each refill valve shall be sized and arranged to independently refill the tank in a maximum time of 8 of 4hours.


NFPA's Building Code Development Committee (BCDC) agrees with the intent of this First Revision. This Public Comment would require each refill valve shall be sized and arranged to independently refill the tank in a maximum time of 4-hours, rather than 8 hours. The current code requires that the storage tank refill at a very quick rate. The proposed language in FR #60 allows for a maximum of 8 hours to refill the tank, which appears to be an excessive amount of time without full capabilities of water supply. Fire flow requirements set forth in NFPA 1 section 18.4.5.1.2 have a maximum duration for the largest buildings at four hours. A four-hour time period would allow the system to be up to full capabilities much faster without the extreme draw that is currently allowed.

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Submitter Full Name: Jim Muir

Organization: Building Safety Division, Clark County, Washington

Affilliation: NFPA's Building Code Development Committee (BCDC)

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9.6.5.3

The fire pump circuit breaker shall not be required to be coordinated with the generator power sourceprotective device provided it is used as a an individual branch circuit breaker and is coordinated with allother line side protective devices, where used .


NFPA 70 has several definitions for a branch circuit. The "Branch Circuit, Individual" definition is most appropriate for this use. Also, "where used" was added since other line side protective devices are not always used.

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10.3.4.5.3

Except as provided in 4.20.2. 3 2(1) and 10.9.4 , remote shutdown or interlock to prevent normal operationshall not be permitted unless approved by the authority having jurisdiction.


Paragraph reference corrected and added the reference to10.9.4 which specifically allows shutdown under specified conditions.

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Public Comment No. 44-NFPA 20-2014 [ Section No. 10.5.2.1.1.2 ]

10.5.2.1.1.2

For multistage multiport pumps, a separate pressure-actuated switch or electronic pressure sensor asdescribed in 10.5.2.1.1.1 shall be provided for each discharge port of the pump as part of the controller.

10.5.2.1.1.3

There For multistage multiport pumps, a separate pressure recorder as described in 10.5.2.1.7.2 shall beprovided for each discharge port of the pump as part of the controller.


This will add a requirement to monitor the pressure in each zone as is the case with individual pumps in each zone.

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First Revision No. 126-NFPA 20-2013 [Sections 10.5.2.1.1.1, 10.5.2.1.1.2]




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10.5.2.1.3.1 *

Where the transducer pressure reading exceeds 10 psi (0.68 bar) during any automatic pump start thatwas initiated by the solenoid drain valve, as required by 10.5.2.1.8.3 , the controller shall activate a visualand audible alarm, that can be silenced.


The clause is overly restrictive by requiring pressure to be limited to a maximum of 10psi (No technical data has been presented to support this level) when the solenoid drain valve is opened. The intent of the clause is already addressed by clause 10.5.2.7.5 (Automatic testing section) which requires the transducer output pressure reading to fall below the system low pressure start point, and initiate an automatic start, or an alarm is activated.

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Submitter Full Name: CAM WORKMAN

Organization: EATON

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Submittal Date: Fri May 16 12:10:39 EDT 2014


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10.5.2.7.1

Where permitted by the AHJ, The controller equipment shall be arranged to automatically start, run, andshut down the motor at the minimum no-flow test frequency and duration required by NFPA 25.


The proposed wording circumvents of the AHJ’s authority by allowing an automatic start then shutdown in the first circumstance even when the AHJ has decided that it must be manual. There are compelling reasons for an AHJ to require manual shutdown under all circumstances and it is the AHJ prerogative to enforce the arrangement that he deems appropriate. The Standard should not be dictating the AHJ as how fire pumps are to be arranged in his jurisdiction. The AHJ is still the final word on accepting an installation. NFPA 25 requires a person to be in attendance when a fire pump is running.

Related Public Comments for This Document

Related Comment Relationship

Public Comment No. 5-NFPA 20-2014 [Section No. 12.7.2.7.1]


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Submitter Full Name: John Chartier

Organization: Northeastern Regional Fire Cod

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20 of 37 6/4/2014 9:15 AM


Revert to extant 10.5.4.2 text . 1

Automatic shutdown shall be permitted only in the following circumstances:

(1) During automatic testing in accordance with 10.5.2.7

(2) Where approved by the authority having jurisdiction for non-testing conditions


No good reason has been given for eliminating automatic stopping for pumps which are not sole source pumps. This will cause any number of pumps to burn up, which is why Chicago requires automatic stopping of ALL electric fire pumps. While I feel that sole source pumps should require manual stopping, this seems excessive where multiple pumps are involved. The net result will be to REDUCE the reliability of fire protection on many of these cases rather than either maintaining or enhancing said reliability.

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Submittal Date: Wed Apr 16 18:50:49 EDT 2014


21 of 37 6/4/2014 9:15 AM


10.5.4.2.1


(1) During automatic testing in accordance with 10.5.2.7 when permitted by the AHJ

(2) Where approved by the authority having jurisdiction for non-testing conditions








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22 of 37 6/4/2014 9:15 AM


Revert to extant 10.5.4.2 text . 2

Where automatic shutdown after automatic start is permitted, a minimum run timer set for at least 10minutes shall be used.


No good reason has been given for eliminating automatic stopping for pumps which are not sole source pumps. This will cause any number of pumps to burn up, which is why Chicago requires automatic stopping of ALL electric fire pumps. While I feel that sole source pumps should require manual stopping, this seems excessive where multiple pumps are involved. The net result will be to REDUCE the reliability of fire protection on many of these cases rather than either maintaining or enhancing said reliability.

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23 of 37 6/4/2014 9:15 AM

Public Comment No. 32-NFPA 20-2014 [ New Section after 10.8.2.2 ]

Add new paragraph to the end of 10.8.2.2

10.8.2.2(7) The transfer switch shall be the delayed transition type with a maximum delay time of 3 seconds.


The delayed transition transfer switch eliminates the higher than normal in-rush currents when transferring the fire pump motor from one source to the other. This is a transfer switch listed for emergency systems (NFPA 70 Article 700).




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Submittal Date: Wed May 07 05:32:21 EDT 2014


24 of 37 6/4/2014 9:15 AM


10.8.2.2.1 Listed Complete Power Transfer Unit

The separate transfer switch unit shall be Listed for fire protection service as a complete unit. It shallinclude all of the items in (1) thru (6) above and include field wiring terminals for the required alarm circuitryand generator start control wiring. It shall meet all of the requirements in 10.8.3. [Renember extant text as10.8.2.2.2.]


Extent text does not require nor name a single entity or who is to be responsible for Arrangement II power transfer equipment, although the fire pump controller is covered. Extent text allows a potpourri of various components to be mounted and installed which may or may not be coordinated, safe or reliable. The power transfer equipment should be by a single entity, and listed as such, as is the fire pump controller and as the combination unit is in Arrangement I in 10.8.2.1.

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Public Input No. 101-NFPA 20-2013 [New Section after 11.4.4.2]




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25 of 37 6/4/2014 9:15 AM


10.8.3.10.1

The use of an “in-phase monitor” or an intentional delay via an open neutral position of the transfer switchto comply with the requirements of 10.8.3.10 shall be prohibited.


A delayed transition transfer switch eliminates the need for an interface between the transfer switch and fire pump controller. Also, UL 1008-7, paragraph E2.16 only restricts the use of the "In-phase monitor".

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26 of 37 6/4/2014 9:15 AM


10.8.3.12.3 Fault Tolerance

The generator starting circuit shall meet the requirements of Clause 10.5.2.6. Acceptable means, amongothers are below:

10.8.3.12.3(1) Supervise the voltage at the normally open contacts, if these are used to start the generator.

10.8.3.12.3(2) Supervise the current flowing thrugh the normally closed contacts, if these are used to startthe generator.

10.8.3.12.3(3) Add a drop-out relay in the generator control panel wired to the normally closed transferswitch generator start contacts powered by the generator battery when the normally open contacts areused to start the generator. Normally closed contacts of this relay shall be wired to the generator normallyopen start cricuit.

10.8.3.12.3(4) Add a pick-up relay in the generator control panel wired to the normally closed transferswitch generator start contacts powered by the generator battery when the normally closed contacts areused to start the generator. Normally open contacts of this relay shall be wired in series with the generatornormally closed start cricuit.


The requirements of 10.5.2.6 are moot if the combination controller or if the Arrangement II transfer switch unit looses control of the stand-by generator due to an open circuit in a normally open circuit control loop, or a short circuit in a normally closed loop or a ground which may also inhibit the generator from starting, depending on where it occurs.

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Public Input No. 101-NFPA 20-2013 [New Section after 11.4.4.2]




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27 of 37 6/4/2014 9:15 AM

Public Comment No. 18-NFPA 20-2014 [ Section No. 11.2.4.3.4.1.1 ]

11.2.4.3.4.1.1 *

Pressure sensing line(s) shall be installed with a connection to the pipe that is in horizontal orientation tothe pressure source Delete this proposed new clause or move it to the Annex A .


It's not clear what "horizontal orientation to the pressure source" means. I don't know what the proposed piping will look like. No reason has been given to force this arrangement on all variable speed engine and engine manufacturers.

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First Revision No. 72-NFPA 20-2013 [New Section after 11.2.4.3.4.1]




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28 of 37 6/4/2014 9:15 AM

Public Comment No. 36-NFPA 20-2014 [ Section No. 11.2.4.3.4.1.1 ]

11.2.4.3.4.1.1 *

Pressure sensing line(s) shall be installed with a connection to the pipe that is in horizontal orientation tothe pressure source.


The term "horizontal orientation to the pressure source" is difficult to understand and enforce. A vertical sensing line would work from underneath with a drop leg to allow sediment to drop down and be cleaned out.

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Affilliation: E&S Committee

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29 of 37 6/4/2014 9:15 AM

Public Comment No. 38-NFPA 20-2014 [ New Section after 11.4.1.6.3 ]

11.4.1.6.4

Vents from interstitial spaces of double-wall tanks shall meet 11.4.1.6.2 and 11.4.1.6.3 and shall not bemanifolded together with a vent from the primary portion of the tank.


NFPA 20 needs to clarify that the rules for the vent from the main portion of the tank also apply to the vent from the interstitial space. Also, the standard needs to clarify that the vents cannot be manifolded together. Manifolding the tanks might allow pressure to build up in a portion of the tank rather than vent properly.

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First Revision No. 147-NFPA 20-2013 [Global Input]

First Revision No. 149-NFPA 20-2013 [Global Input]





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30 of 37 6/4/2014 9:15 AM


12.7.2.1.1.2

For multistage multiport pumps a separate pressure-actuated switch or electronic pressure sensor asdescribed in 12.7.2.1.1.1 shall be provided for each discharge port of the pump as part of the controller.

12.7.2.1.1.3

For multistage multiport pumps, a separate pressure recorder as described in 12.4.4.1 shall beprovided for each discharge port of the pump as part of the controller.


This will add a requirement to monitor the pressure in each zone as is the case with individual pumps in each zone.

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First Revision No. 127-NFPA 20-2013 [Sections 12.7.2.1.1.1, 12.7.2.1.1.2]




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31 of 37 6/4/2014 9:15 AM


12.7.2.7.1

The Where permitted by the AHJ, the controller equipment shall be arranged to automatically start, run,and shut down the engine at the minimum no-flow test frequency and duration required by NFPA 25.



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32 of 37 6/4/2014 9:15 AM

Public Comment No. 19-NFPA 20-2014 [ Section No. 12.7.5.2 [Excluding any

Sub-Sections] ]

Automatic shutdown shall not be permitted if starting and running causes are present.Delete this clause and revert to extant text of 12.7.5.2


No good reason has been given for eliminating automatic stopping for pumps which are not sole source pumps. Based on filet experience this will cause any number of pumps to burn up for no good reason. While sole source pumps should require manual stopping, the proposed text is excessively restrictive where multiple pumps are involved. The net result will be to REDUCE, rather than enhance, the reliability of fire protection on many of these cases rather than either maintaining or enhancing said reliability.

Also, the proposed wording allows an automatic shutdown in one circumstance even when the AHJ may decide that it must be manual. This is a direct circumvent of the AHJ’s authority as defined in 3.2.2. Indeed, there may be compelling reasons for automatic shutdown during automatic testing and if the AHJ agrees, then so be it. However, if the AHJ has other reasons to require it to be manually shutdown or if the reasoning to shut down automatically is not compelling, the AHJ is still the final word on accepting an installation

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33 of 37 6/4/2014 9:15 AM


Delete this clause and revert to extant text of 12.7.5.2

.1


(1)

(2) When the engine overspeed shutdown device operates:

(3) The controller shall remove power from the engine running devices, prevent further cranking,energize the overspeed fire pump alarm, and lock out until manually reset.

(4) Resetting of the overspeed circuit shall be required at the engine and by resetting the controllermain switch to the off position.

(5) The controller shall not be capable of being reset until the engine overspeed shutdown device ismanually reset.

(6) Where approved by the authority having jurisdiction.




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* During automatic testing in accordance with 12.7.2.7 .


34 of 37 6/4/2014 9:15 AM


Delete this clause and revert to extant text of 12.7.5.2.

1


(1)


(3) The controller shall remove power from the engine running devices, prevent further cranking,energize the overspeed fire pump alarm, and lock out until manually reset.

(4) Resetting of the overspeed circuit shall be required at the engine and by resetting the controllermain switch to the off position.

(5) The controller shall not be capable of being reset until the engine overspeed shutdown device ismanually reset.





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* During automatic testing in accordance with 12.7.2.7 .


35 of 37 6/4/2014 9:15 AM


12.7.5.2.1


(1)


(a) The controller shall remove power from the engine running devices, prevent further cranking,energize the overspeed fire pump alarm, and lock out until manually reset.

(b) Resetting of the overspeed circuit shall be required at the engine and by resetting the controllermain switch to the off position.

(c) The controller shall not be capable of being reset until the engine overspeed shutdown device ismanually reset.







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* During automatic testing in accordance with 12.7.2.7 , when permitted by the AHJ .


36 of 37 6/4/2014 9:15 AM

Public Comment No. 37-NFPA 20-2014 [ Section No. A.11.2.4.3.4.1.1 ]

A.11.2.4.3.4.1.1

The pressure sensing line could be installed in a vertical orientation in either the top or bottom of the pipe,however, if it is installed at the bottom it has the opportunity to gather debris, and if it is installed at the top ithas the opportunity to receive air.


The section that this is tied to has been proposed for elimination. Even if the section stays, telling people that they can install something vertically when the main body of the standard says that it must be horizontal is wrong.



Public Comment No. 36-NFPA 20-2014 [Section No. 11.2.4.3.4.1.1]

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37 of 37 6/4/2014 9:15 AM

Attachment #3: Committee Roster

Address List No PhoneFire Pumps FIM-AAA

Chad Duffy09/18/2014

FIM-AAA

Gayle Pennel

ChairAon Fire Protection Engineering4 Overlook PointLincolnshire, IL 60069-4302

I 4/17/1998FIM-AAA

R. T. Leicht

SecretaryState of DelawareOffice of State Fire Marshal4 Drummond DriveWilmington, DE 19808International Fire Marshals AssociationAlternate: Michael R. Moran

E 1/1/1990

FIM-AAA

Michael E. Aaron

PrincipalHughes Associates/RJA Group600 West Fulton Street, Suite 500Chicago, IL 60661-1241Alternate: Timothy J. LaRose

SE 10/28/2008FIM-AAA

Timothy Ballengee

PrincipalPeerless Pump Company2500 Regency ParkwayCary, NC 27518Alternate: Timothy Jordan

M 3/15/2007

FIM-AAA

James A. Beals

PrincipalJacobs Engineering1100 North Glebe Road, Suite 500Arlington, VA 22201

SE 11/2/2006FIM-AAA

Thomas R. Boccetti

PrincipalThe DuPont Company, Inc.Brandywine 72111007 Market StreetWilmington, DE 19898NFPA Industrial Fire Protection Section

U 4/3/2003

FIM-AAA

Marinus Both

PrincipalWestern States Fire Protection Companyd.b.a. Statewide Fire Protection3130 Westwood DriveLas Vegas, NV 89109Alternate: Michael Koska

IM 7/28/2006FIM-AAA

Pat D. Brock

PrincipalOklahoma State UniversityFire Protection & Safety Technology1424 West Liberty AvenueStillwater, OK 74075Alternate: Floyd Luinstra

SE 7/1/1996

FIM-AAA

Hugh D. Castles

PrincipalEntergy Services, Inc.213 Travis TrailMadison, MS 39110Edison Electric Institute

U 10/3/2002FIM-AAA

Stephen A. Clark, Jr.

PrincipalAllianz Risk Consulting, LLC1003 Reece DriveHoschton, GA 30548Alternate: Andrew C. Higgins

I 3/4/2008

FIM-AAA

Mohammad Dadgardoust

PrincipalLeber/Rubes Inc. (LRI)2300 Yonge Street, Suite 2100Toronto, ON M4P 1E4 CanadaAlternate: A. M. Fred Leber


Alan A. Dorini

PrincipalGulfstream Pump & Equipment, Inc.PO Box 14543Fort Lauderdale, FL 33302Alternate: Jerald G. Huff

IM 1/1/1990

1



FIM-AAA

David B. Fuller

PrincipalFM Global1151 Boston Providence TurnpikePO Box 9102Norwood, MA 02062-9102Alternate: Matthew Paine

I 10/6/2000FIM-AAA

Dana R. Haagensen

PrincipalFramingham Fire Department10 Loring DriveFramingham, MA 01702-8767Alternate: Bradford T. Cronin

E 01/14/2005

FIM-AAA

David R. Hague

PrincipalLiberty Mutual Insurance20 Riverside RoadWeston, MA 02493-2231Alternate: Joseph R. Sanford

I 3/4/2009FIM-AAA

Bill M. Harvey

PrincipalHarvey & Associates, Inc.PO Box 818Fountain Inn, SC 29644American Fire Sprinkler AssociationAlternate: Thomas G. Wellen

IM 7/20/2000

FIM-AAA

Hatem Ezzat Kheir

PrincipalKheir Group24B Anwer El Mofty StreetNasr City, Cairo, EgyptAlternate: Mohamed Ezzat Kheir

IM 7/22/1999FIM-AAA

John R. Kovacik

PrincipalUL LLC333 Pfingsten RoadNorthbrook, IL 60062-2096Alternate: Kerry M. Bell

RT 1/1/1990

FIM-AAA

Jennifer A. McGrath

PrincipalPentair800 Airport RoadNorth Aurora, IL 60542Alternate: Leroy Franklin

M 3/1/2011FIM-AAA

Charles W. McKnight

PrincipalBattelle Energy AlliancePO Box 1625, Mail Stop 3425Idaho Falls, ID 83415

U 7/29/2005

FIM-AAA

James S. Nasby

PrincipalColumbia Engineering8210 Karlov AvenueSkokie, IL 60076-2736


Peter Placidus Petrus

PrincipalIndonesian Fire & Rescue FoundationIndonesian Fire Service AssociationJalan Alam Asri 1/TK. 33Jakarta, 12310 Indonesia

E 10/18/2011

FIM-AAA

Milosh T. Puchovsky

PrincipalWorcester Polytechnic InstituteDepartment of Fire Protection Engineering100 Institute RoadWorcester, MA 01609

SE 8/2/2010FIM-AAA

Jeffrey R. Roberts

PrincipalXL Global Asset Protection Services128 Twin Oaks DriveBrandon, MS 39047Alternate: Brandon W. Frakes

I 7/12/2001

2



FIM-AAA

Michael A. Rothmier

PrincipalUA Joint Apprenticeship Committee LU 6691315 Berrytree DriveSugarland, TX 77479United Assn. of Journeymen & Apprentices of thePlumbing & Pipe Fitting IndustryAlternate: Gregory A. Bartels

L 03/05/2012FIM-AAA

Richard Schneider

PrincipalJoslyn Clark Controls1202 W. Manor DriveLancaster, SC 29720National Electrical Manufacturers AssociationAlternate: William F. Stelter

M 1/1/1990

FIM-AAA

Darrell A. Snyder

PrincipalPatterson Pump Company2129 Ayersville RoadPO Box 790Toccoa, GA 30577Hydraulic InstituteAlternate: John P. Kahren

M 4/3/2003FIM-AAA

Hansford Stewart

PrincipalXylem/A-C Fire Pump SystemsDallas Integrated Solutions10661 Newkirk StreetDallas, TX 75220Alternate: Brian Buscher

M 10/10/1998

FIM-AAA

Jim Vanden Boogard

PrincipalCummins NPower, LLC875 Lawrence DriveDe Pere, WI 54115-3910Alternate: John Laka

M 8/5/2009FIM-AAA

Terry L. Victor

PrincipalTyco/SimplexGrinnell705 Digital Drive, Suite NLinthicum, MD 21090-2267National Fire Sprinkler AssociationAlternate: Kenneth E. Isman

IM 10/23/2003

FIM-AAA

John Whitney

PrincipalClarke Fire Protection Products, Inc.100 Progress PlaceCincinnati, OH 45246-1718Alternate: Kevin Kunkler

M 10/1/1996FIM-AAA

Gregory A. Bartels

AlternateSprinkler Fitters LU 669-JATC7050 Oakland Mills Road, Suite 100Columbia, MD 21046United Assn. of Journeymen & Apprentices of thePlumbing & Pipe Fitting IndustryPrincipal: Michael A. Rothmier

L 03/05/2012

FIM-AAA

Kerry M. Bell

AlternateUL LLC333 Pfingsten RoadNorthbrook, IL 60062-2096Principal: John R. Kovacik

RT 4/15/2004FIM-AAA

Brian Buscher

AlternateAC Fire Pump Systems8200 North Austin AvenueMorton Grove, IL 60053-3205Principal: Hansford Stewart

M 03/03/2014

FIM-AAA

Bradford T. Cronin

AlternateNewport Fire Department21 West Marlborough StreetNewport, RI 02840Principal: Dana R. Haagensen

E 8/2/2010FIM-AAA

Brandon W. Frakes

AlternateXL Global Asset Protection Services196 Shady Grove LaneAdvance, NC 27006Principal: Jeffrey R. Roberts

I 10/23/2003

3



FIM-AAA

Leroy Franklin

AlternatePentair800 Airport RoadNorth Aurora, IL 60542Principal: Jennifer A. McGrath

M 10/23/2013FIM-AAA

Andrew C. Higgins

AlternateAllianz Risk Consultants, LLC38 Kilbride DrivePinehurst, NC 28374Principal: Stephen A. Clark, Jr.

I 03/05/2012

FIM-AAA

Jerald G. Huff

AlternateJ&J Fire Protection Inc.4628 North Hiatus RoadSunrise, FL 33351Principal: Alan A. Dorini

IM 10/27/2009FIM-AAA

Kenneth E. Isman

AlternateNational Fire Sprinkler Association, Inc.40 Jon Barrett RoadPatterson, NY 12563-2164Principal: Terry L. Victor

IM 1/1/1990

FIM-AAA

Timothy Jordan

AlternateGrundfos/Peerless Pump Company330 North Division Drive, Suite GSugar Grove, IL 60554-9800Principal: Timothy Ballengee

M 03/03/2014FIM-AAA

John P. Kahren

AlternateSPP Pumps, Inc.6716 Best Friend RoadNorcross, GA 30071Principal: Darrell A. Snyder

M 10/27/2009

FIM-AAA

Mohamed Ezzat Kheir

AlternateKheir Group24B Anwer El Mofty StreetNasr City, Cairo, 11371 EgyptPrincipal: Hatem Ezzat Kheir

IM 10/29/2012FIM-AAA

Michael Koska

AlternateNational Fire Suppression/Western States Fire ProtectionCompany501 Sunshine RoadKansas City, KS 66115-1239Principal: Marinus Both

IM 08/11/2014

FIM-AAA

Kevin Kunkler

AlternateClarke Fire Protection Products, Inc.3133 East Kemper RoadCincinnati, OH 45241Principal: John Whitney

M 10/23/2013FIM-AAA

John Laka

AlternateCummins NPower, LLC875 Lawrence DriveDe Pere, WI 54115-3910Principal: Jim Vanden Boogard

M 7/23/2008

FIM-AAA

Timothy J. LaRose

AlternateHughes Associates/RJA Group6 Centerpointe Drive, Suite 760LaPalma, CA 92646Principal: Michael E. Aaron

SE 7/29/2005FIM-AAA

A. M. Fred Leber

AlternateLeber/Rubes Inc. (LRI)Yonge Eglinton Center2300 Yonge Street, Suite 2100PO Box 2372Toronto, ON M4P 1E4 CanadaPrincipal: Mohammad Dadgardoust

SE 08/09/2012

4



FIM-AAA

Floyd Luinstra

AlternateOklahoma State University499 Cordell SouthStillwater, OK 74078Principal: Pat D. Brock


Michael R. Moran

AlternateState of DelawareOffice of the State Fire Marshal2307 MacArthur RoadNew Castle, DE 19720International Fire Marshals AssociationPrincipal: R. T. Leicht

E 10/4/2001

FIM-AAA

Matthew Paine

AlternateFM Global1151 Boston-Providence TurnpikeNorwood, MA 02062-9102Principal: David B. Fuller

I 10/23/2013FIM-AAA

Joseph R. Sanford

AlternateLiberty Mutual Property Risk Engineering20 Riverside RoadWeston, MA 02493-2231Principal: David R. Hague

I 8/5/2009

FIM-AAA

William F. Stelter

AlternateMaster Control Systems, Inc.910 North Shore DrivePO Box 276Lake Bluff, IL 60044National Electrical Manufacturers AssociationPrincipal: Richard Schneider

M 7/1/1993FIM-AAA

Thomas G. Wellen

AlternateAmerican Fire Sprinkler Association, Inc.12750 Merit Drive, Suite 350Dallas, TX 75251Principal: Bill M. Harvey

IM 11/2/2006

FIM-AAA

Edward D. Leedy

Member Emeritus2033 Butterfly Lane, CC304Naperville, IL 60563

1/1/1990FIM-AAA

James W. Nolan

Member EmeritusJames W. Nolan Company633 Florence DrivePark Ridge, IL 60068

1/1/1965

FIM-AAA

Chad Duffy

Staff LiaisonNational Fire Protection Association1 Batterymarch ParkQuincy, MA 02169-7471

4/18/2011

5