ML20149E960
| ML20149E960 | |
| Person / Time | |
|---|---|
| Site: | Point Beach  |
| Issue date: | 02/05/1988 |
| From: | Harrison J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Fay C WISCONSIN ELECTRIC POWER CO. |
| References | |
| NUDOCS 8802110327 | |
| Download: ML20149E960 (1) | |
See also: IR 05000266/1987007
Text
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FEB 5 1988
Docket.No. 50-266
Docket No. 50-301
. Wisconsin Electric-Power Company ;
ATTN: Mr. C. W.-Fay j
Vice President "
Nuclear Power Department ,
231 West Michigan, Room 308 l
Milwaukee, WI 53201
Gentlemen:
Thank you for your letter dated January 13, 1988, informing us of the steps
you have taken to address Open Item (266/87007-06; 301/87007-06) which was
discussed in our report 50-266/87007; 50-301/87007, dated July 7, 1987.
We have reviewed your submittal and have no questions at this time. This item !
will be further reviewed during a future inspection at your facility.
Sincerely, i
~
- gc,,1 Sig,d 17 U. U* IDI
J. J. Harrison, Chief
Engineering Branch
cc: J. J. Zach, Plant Manager *
cc w/ltr dtd 1/13/88:
DCD/DCB (RIDS)
Licensing Fee Management Branch ,
Resident Inspector, RIII i
Virgil Kanable, Chief
Boiler Section
Charles Thompson, Chairman 1
Wisconsin Public Service
Comission
R. I. Braund (SLO),
WI Div of Emergency Government
Lawrence J. McDonnell, Chief
l
Radiation Protection Section
WI Department of Health and
Social Services, Division
of Health
III R
IIg
mes/j( Gardier rison
02/04/88 02/Cr/88 02/05/88
i
8802110327 080205
PDR ADOCK 05000266 i
G PDR g {} l
3 -
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Wisconsin Electnc ma cwmr
231 W MICHIGAN,P.o BOX 2046, MILWAUKEE.W153201 !
(414)2M 2345
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VPNPD-88-022
January 13, 1988
U. S. NUCLEAR REGULATORY COMMISSION '
Document Control Desk
Washington, D. C. 205ss
Gentlemen: h
DOCKETS 50-266 AND 50-301
TECHNICAL EVALUATION OF FIRE DAMPER TESTS
POINT BEACH NUCLEAR PLANTS, UNITS 1 AND 2
In response to Inspection Report 50-266/87007(DRS);
50-301-87007(DRS), which we received with your letter dated
July 7, 1987, we are providing our Technical Evaluation of Fire
Damper Tests at Point Beach Nuclear Plant.
During development of the Technical Evaluation, we determined
that a damper closure verification test would be required.
Preparation of a test procedure and scheduling of the test so
as not to interfere with the Fall 1987 outage manpower
requirements delayed our verification of the Technical
Evaluation and submittal for Region III review.
We believe that our submittal of the enclosed Technical
Evaluation fulfills our commitment for open item
(266/87007-06;301/87007-06), Paragraph 3.e of the Inspection
Report.
Please contact us if you have any questions regarding this
,
submittal.
I
Very truly ours,
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860h%
C. W. Fay I
, Vice President
l
Nuclear Power
Attachments
Copies to NRC Resident Inspector
NRC Regional Administrator - Region III
'JAN 191988
h ; C ! M O W M tjP
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TECHNICAL EVALUATION
OF
FIRE DAMPER TESTS
AT
POINT BEACH NUCLEAR PLANT -
1.0 INTRODUCTION
During routine safety inspections between February 23 and June 26, 1987,
the inspector requested that the licensee provide justification regarding
the test methodology utilized to demonstrate that fire dampers will close .
under normal air flow. Provision of the requested justification was
identified as open item 266/87007-06; 301/87007-06 in the July 7, 1987 .
inspection report. This Technical Evaluation is prepared in response to
the inspector's request.
S
2.0 PURPOSE
.
The purpose of this evaluation is to demonstrate that the methodology I
'
used to test fire damper closure under normal air flow provides adequate
assurance that the dampers will function as required to maintain fire ;
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3.0 SCOPE ,
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The PBNP Fire Damper Summary is a list of fire dampers which are located
in the boundaries of fire areas containing Appendix R safe shutdown i
components. This evaluation covers fire dampers which are identified in
. _ _ _
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the summary as' having been tested under normal air flow conditions. The
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summary is attached as Table FD-1. .
4.0 BASIS
In a previous evaluation we determined that it was not practical to
expect large multisection dampers to close against normal air flow.
Multisection dampers have been tested statically and a Standing Order
has been issued for PBNP operators to shut down ventilation for the
affected zone if a fire is detected in fire zones separated by such
The Fire Damper Test Guidelines dated 03-04-86 were used to test fire
dampers under normal air flow. The guidelines are intended to be
generic and do not describe a standard test configuration with specific
dimensional tolerances. However, we believe that a sufficient quantity
of dampers were tested in a conservative air flow configuration to
demonstrate that the dampers will operate as intended.
l
A fire damper is tested one time under normal air flow conditions for
design verification. The initial normal air flow test was conducted on
dampers which have been in service between 0 and 17 years without any
noticed effect from aging. Ten percent of the fire dampers listed in
Table FD-1 will be tested statically every 18 months to provide continued
damper operability. Should more than 15% of the dampers tested fail to
close, an additional 10% of the listed dampers shall be tested until the
quantity of failed dampers is less than 15% of the quantity tested. An
a
engineering review shall also be conducted to evaluate the reasons for
! damper failure.
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5.0 EVALUATION
5.1 Installed Configurations
The relative location of components in a ventilation system can
affect the outcome of fire damper testing. The components to be
considered are the fan, fire damper, inspection port and ventila-
tion grill. By reviewing fire dampers installed at PBNP, we have
determined that seven types of installed configurations exist.
These configurations are shown on Figure FD-1.
5.2 Flow Characteristics
We have evaluated the flow characteristics for each fire damper
which is expected to close under normal air flow conditions. These
characteristics are listed in Table FD-2. Since pressure drop across
the damper has the major effect on damper closure capability, we
conclude that if a damper of a given configuration has been success-
fully tested at a specific pressure drop, all dampers of the same
configuration which are subject to the same or lesser pressure drops
will also be operable under normal air flow conditions.
5.3 Other Effects
Several fire dampers have been functionally tested as part of Halon
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fire suppression system discharge testing. This testing provides
added assurance that these dampers will function as designed. Where
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b . .
a damper which is expected to c1Cse against normal air flow is in-
stalled in a branch parallel to a multi section damper located in the -
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same fire zone, the damper will operate because the fan which is i
common to both dampers will be shutdown. .
These effects are also identified in Table FD-2.
.
5.4 Figure FD-1 Evaluation
a) Detail (a) depicts fire dampert which are located in the fire
'
barrier without connecting ductwork. This configuration can be
tested from either side of the fire barrier without affecting air ,
flow through the damper. Therefore we concluded that dampers ;
which are installed in accordance with Detail (a) and which have
been tested under normal air flow conditions are operable.
b) Detail (b) depicts fire dampers which are located in one branch
of a multibranch duct system. These fire dampers and fire dampers
which are installed in the other branches are not exposed to a .
common fire area. Therefore, during damper closure an air flow i
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path alternate to the affected damper is assured. During a test
an open inspection port would increase air flow through the damper
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in a conservative manner. A successful test under this condition l
t
demonstrates damper operability. Reaching into the duct to
- actuate or observe damper closure would obstruct flow in a noncon- ;
servative sanner. For this condition, flow would increase through
the alternate branch just as it would for damper closure under ,
normal air flow conditions and the effect on the total ventilation
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system performance would be negligible. Therefore, we concluded
,
that dampers which are installed in accordance with Detail (b) are
tested equivalent to normal air flow conditions and are operable.
Demper qualification by pressure drop exposure is not applicable
to Detail (b) configurations,
c) Detail (c) depicts fire dampers which are located in one branch
of a multibranch duct system. These fire dampers and fire dampers
which are installed in the other branches are not exposed to a
common fire area. Therefore during damper closure an air flow
path alternate to the affected damper is assured. During a test
an open inspe,ction port would increase air flow through the damper
in a conservative manner. A successful test under this condition
demonstrates damper operability Reaching into the duct to actuate
or observe damper closure would obstruct flow in a nonconservative
manner. For this condition, flow would increase through the
alternate branch just as it would for damper closure under normal
air flow conditions and the effect on the total ventilation system
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performance would be negligible. Therefore, we conclude that
dampers which are installed in accordance with Detail (c) are
tested equivalent to normal air flow conditions and are operable.
Damper qualification by pressure drop exposure is not applicable
to Detail (c) configurations.
d) Detail (d) depicts fire dampers which arr 'ocated downstream of
all ventilation openings and inspectic* t . During a test an
,
open inspection port would increase riU chrough the damper
I in a conservative manner. A successt ta:: under this condition
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demonstrates damper operability. ReacPing into the duct to
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actuate or observe damper closure would obstruct flow in a noncon-
servative manner. The s.'res of the duct, inspection port and
obstruction are variables which determine the conservatism of air
flow during damper testing. These variables would have to be
known and evaluated for individual damper tests in order to achieve
a positive determination. Alternatively, we have reevaluated the
actual configuration for individual dampers which are installed
in accordance with Detail (d).
The damper and inspection port arrangement for dampers 21 and 22
is shown on Figure FD-24. Because of the inspection port locations,
these dampers would be tested without obstructing the air flow.
Because of the right angle turn in the normal flow path and the
location of the inspection port, any opening during testing would
result in conservative additional air flow. Therefore we conclude
d
that dampers 21 and 22 are operable. The arrangement for# amper
35 is shown on Figure FD-2b. This damper can also be tested without
obstructing the air flow. Because of the right angle turn in the
normal flow path and the location of the inspection port, any
j opening during testing would result in conservative additional air
flow. Therefore, we conclude that damper 35 is operable,
e) Detail (e) depicts fire dampers which are located upstream of all
ventilation openings and inspection ports. During testing an
open inspection port would increase air flow through the damper l
in a conservative manner. A successful test under this condition
demonstrates damper operability. Reaching into the duct to
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actuate or observe closure would obstruct flow in a nonconservative ,
e
manner. The sizes of the duct, inspection port and obstruction ;
' are variables which determine the conservatism of air flow during
damper testing. These variables would have to be known and eval- ;
'
usted for individual damper tests in order to achieve a positive
determination. Alternatively we have reevaluated the actual ;
configuration for fire dampers which are installed in accordance
with Detail (e). ,
The damper and inspection port arrangement for damper 34 is shown
,
on Figure FD-2c. Because of the proximity of the inspection port
,
to the fire damper, this damper can be tested without obstructing
the air flow. Therefore we concluded that damper 34 is operable,
f) Detail (f) depicts fire dampers which are located between the
inspection port and the ventilation grill upstream of the fan. $
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The inspection port is the only duct opening between the # damper
and the fan. An open inspection port or an obstruction in the duct
would decrease air flow through the damper in a nonconservative
manner. Dampers 31, 32 and 33 are installed in accordance with
Detail (f). The installed configuration is identical for these
dampers except for damper size. The configuration for damper 33
is shown on Figure FE-2d. The purpose of these fire dampers is to '
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protect the interior of the control building from an exposure fire
on the roof. The dampers are installed below normally closed shut-
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off dampers which were removed for fire damper installation and
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testing. Testing without the normal shutoff damper resistance to
flow was conservative. The fact that these dampers were tested
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with air flow was a conservative action because the design
function of these dampers is to close under a no air flow condi- -
tion. Therefore, we concluded that dampers 31, 32 and 33 are [-
While this evaluation has demonstrated the operability of fire ,
dampers listed above, it does not provide justification for future
installations. In the future, installation of fire dampers which
d must close against air flow should not be installed in accordance
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with detail (f).
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g) Detail (g) depcits fire dampers which are located between the ,
inspection port and the ventilation grill down stream from the fan.
The inspection port is the only duct opening between the fan and
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the damper. An open inspection port or an obstruction in the duct
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would decrease air flow through the damper in a nonconservative
'
manner. Dampers 11A,12A,13A,14A,15A and 16A are installed
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in accordance with detail (g). The configuration for damper 11A,
! which is exposed to the largest pressure drop requirement is shown
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on Figure FD-2e. We have ratested this damper with the inspec- ,
tion port opening sealed except for passage of the damper trip
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j wire. The damper closed successfully. Therefore we concluded
that dampers installed in accordance with detail (g) which must
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close against an air flow pressure drop less than .264 inches of
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! wcter are operable. In the future, fire dampers which must close i
against higher air flow pressure drops should not be installed in
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6.0 CONCLUSION
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This Technical Evaluation demonstrates that fire dampers installed at
PBNP prior to January 1, 1988, which are expected to close against normal
air flow, have been tested in a manner which provides adequate assurance
that the dampers will operate as required. Fire dampers which are
installed after January 1,1988 shall be installed in accordance with
Figures FD-2a, b or c or shall be tested in accordance with Operating
Instruction 01-88, Fire Dampers.
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TABLE FD-1
P8MP FIRE DAMPER STUDY
Damper Install. Penetra- Survey HVAC Damper Fusible Test Fan Off Associated Associated
Docu. Dwg. Dwg. Rating Rating Condition or other Fan Area
No. tion No.
MR 83-151 51 M-7-4-40 M-116 3 Hour 212F Norm Air Flow N/A W30A&8 U1 Chg. Pump ha
1
El M-7-4-41 M-116 3 Hour 212F Norm Air Flow N/A W30A&8 U1 Chg. Pump Am
2 MR 83-151
3 MR 83-151 51 M-7-4-39 M-116 3 Hour 212F Norm Air Flow N/A W30A&B U1 Chg. Pump Am
4 MR 83-151 M1 M-7-4-38 M-116 3 Hour 212F Norm Air Flow N/A W30A&8 U1 Chg. Pur 'Js
M-2007-6-47 M-122 3 Hour 212F Norm Air Flow N/A W30A&8 U2 Chg. Pump Am
5 MR 83-151 N1
MR 83-151 51 M-2007-6-48 M-122 3 Hour 212F Norm Air Flow N/A W30A&8 U2 Chg. Pump Am
6
7 MR 83-151 51 M-2007-6-49 M-122 3 Hour 212F Norm Air Flow N/A W30A&8 U2 Chg. Pump Its
MR 83-151 51 M-2007-6-50 M-122 3 Hour 212F Norm Air Flow N/A , W30A&8 U2 Chg. Pump ha
8
9 MR 83-151 E5 M-7-4-14 M-116 3 Hour 212F Static MR 86-127 IW98 PA8 El 8 Area 4
10 MR 83-151 F1 M-7-4-47 M-116 3 Hour 212F Static MR 86-127 IW98 PA8 El 8 Area 4
11 MR 83-151 E7 M-7-4-14 M-116 3 Hour 212F Static MR 86-127 IW9C PA8 E1 8 Area 4
12 MR 83-151 M M-5-4-1 M-116 3 Hour 212F Static MR 86-127 IW9C FA8 El 8 Area 4
13 MR 83-151 E2 M-7-4-11 M-116 3 Hour 212F Static MR 96-127 IW90 PA8 El 8 Area 4
14 MR 83-151 F31 M-0-40 M-116 3 Hour 212F Static MR 86-127 IW90 PA8 El 8 Area 4
15 MR 83-151 El M-2007-6-15 M-122 3 Hour 212F Static MR 86-127 2W9C Cryogenic lha
16 MR 83-151 F1 M-2007-6-46-3 M-122 3 Hour 212F Static MR 86-127 2W9C Cryogenic h
17 MR 83-151 52 M-7-4-13 M-116 3 Hour 212F Static MR 86-127 W30A&B PA8 El 8 Area 4
18 MR 83-151 513 M-7-4-13 M-116 3 Hour 212F Static MR 86-127 W27A&B PA8 E1 8 Area 4
19 MR 83-151 518 M-7-4-13 M-116 3 Hour 212F Static MR 86-127 W32 PA8 El 8 Area 4
20 MR 83-151 W3 M-7-4-15 M-116 3 Hour 212F Static MR 86-127 W30A&B PA8 El 8 Ar" 4
M-7-3-67 M-111 3 Hour 212F Nonn Air Flow N/A W10A Battery he .
21 MR 83-151 N1
MR 83-151 N1 M-7-3-69 M-111 3 Hour 212F Norm Air Flow N/A W108 Battery Ihm
22
23 MR 85-015-1 M M-5-4-1 M-116 3 Hour 165F Static MR 86-127 W27A&8 PA8 El 8 Area 4
24 MR 85-015-1 G M-5-4-1 M-116 3 Hour 165F Norm Air Flow N/A W27A&B PA8 E1 8 Area 4
M-109 3 Hour 165F Static MR 86-127 W13A1&A2 HVAC Equip Am
25 MR 85-015-1 F9 M-1-3-53
M-110 3 Hour 165F Static MR 86-127 W13A1&A2 HVAC Equip Am
26 MR 85-015-1 F1 M-0-39
MR 85-015-1 F9 M-1-3-53 M-109 3 Hour 286 Static MR 86-127 W13A1&A2 Control Rm
27
MR 85-015-1 F1 M-0-39 M-110 3 Hour 286 Static MR 86-127 W13A1&A2 Control Rm
28 HVAC Equip Am
29 MR 85-015-1 F9 M-1-3-53 M-109 3. Hour 165F Static MR 86-127 W1381&82
M-103 286 Static MR 86-127 W1381&B2 HVAC Equip Am
30 MR 85-015-1 F9 M-1-3-53 3 Hour
Cont. 81dg. Reef
31 MR 85-015-2 C19 M10-3-54 M-5004 3 Hour 286 Norm Air Flow N/A W13C
M-5004 3 Hour 286 Norm Air Flow N/A W13C - Cont. 81dg. Reef
32 MR 85-015-2 C18 M10-3-54
M-10-3-54 M-5004 3 Hour 286 *iorm Air Flow N/A W13C Cont. 81dg. Noof
33 MR 85-015-2 C17
MR 85-015-3 F7 M-1-3-53 M-109 3 Hour 165F Norm Air flow N/A WIS Control Rm -
34
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TABLE FD-1 (Ccnt'd.) -
%
PBNP FIRE DAMPER STUDY 7 U _.
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Penetra- Survey HVAC Damper Fusible Test Fan Off Associated Associated
Danper Install.
Area
No. Docu. tion No. Dwg. Dwg. Rating Rating Cond', tion or other Fan
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M-111 3 Hour 165F Norm Air flow N/A Wil Air Comp Rm
35 MR 85-015-3 N6 M-7-3-15
M-109 3 Hour 165F Norm Air Flow N/A W13Bl&B2 Comp Rm
M-1-3-5')
,
36 MR 85-015-3 S1
Comp Rm
M-1-3-50 M-109 3 Hour 165F Norm Air Flow N/A W13Bl&B2
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37 MR 85-015-4 S2
El 8 Bat Rm
57 M-7-3-9 M-111 3 Hour 160F Norm Air Flow N/A N/A
1A MR 613
MR 613 53 M-7-3-10 M-111 3 Hour 160F Norm Air Flow N/A N/A El 8 Bat 'm
2A El 8 AFI .a
/R 613 56 M-7-3-3 M-111 3 Hour 160F Norm Air Flow N/A N/A
3A
M-7-3-4 -
3 Hour 160F Norm Air Flow N/A N/A El 8 AFP Rm
4A MR 613 E13
MR 613 W8 M-7-3-22 -
3 Hour 160F Norm Air Flow ' N/A N/A El 8 AFP Rn
E49 M-7-3-23-1 M-111 3 Hour 160F Norm Air Flow N/A N/A El 3 AFP Rm
6A MR 613
E48 M-7-3-23-2 M-111 3 Hour 160F Norm Air Flow N/A N/A El 8 AFP Rm
7A MR 613
M-5-3-31 N/A 3 Hour 160F N/A N/A N/A CRNorthWig
8A MR 622 H5
CR South Wig
512 M-5-3-32 N/A 3 Hour 160F N/A N/A N/A
9A MR 622
M-5-3-33 N/A 3 Hour 160F N/A N/A N/A CR East Wind
10A MR 622 E7
M-110 1.5 Hour 160F Norm Air Flow N/A HX65A DG Rm Heatic'
11A Orig.Constr F12 M-5-3-30
M-5-3-30 M-110 1.5 Hour 160F Norm Air Flow N/A HX65A DG Rm Heatic
12A Orig.Constr F11
HX65B DG Rm Heatiri
13A Orig.Constr F8 M-5-3-30 M-110 1.5 Hour 160F Norm Air Flow N/A
M-110 1.5 Hour 160F Norm Air Flow N/A HX65B DG Rm Heatfr
14A Orig.Constr F7 M-5-3-30 Air Coup Rm
M-110' 1.5 Hour 160F Norm Air Flow N/A HX78
15A Orig.Constr F2 M-5-3-30 Heating
M-110 1.5 Hour 160F Norm Air Flow N/A HX78 Air Crsp Rm
16A Orig.Constr F1 M-5-3-30 Heating
M-5-3-30 M-110 1.5 Hour 165F Static N/A W12A DG Air I aq
17A Orig.Constr F14
DG Air Exnat
18A Orig.Constr F14 M-5-3-30 M-110 1.5 Hour 165F Static N/A W12A
M-110 1.5 Hour 165F Static N/A W12B DG Air Exhat
19A Orig.Constr F14 M-5-3-30 DG Air Exhat
20A Orig.Constr F14 M-5-3-30 M-110 1.5 Hour 165F Static N/A W12B
M-110 1.5 Hour 165F Static N/A W12C DG Air Exhat
21A Orig.Constr F13 M-5-3-30 DG Air Exhat
22A Orig.Constr F13 M-5-3-30 M-110 1.5 Hour 165F Static N/A W12C
M-110 1.5 Hour 165F Static N/A W12D DG Air Exhat
23A Orig.Constr F13 M-5-3-30 DG Air Exhat
24A Orig.Constr F13 M-5-3-30 M-110 1.5 Hour 165F Static N/A W120
EB45A-5 3 Hour 160F Norm Air Flow N/A AHU1A&lB White Inveri
25A MR 784 58 M-2005-6-37 White Inveri
160F Norm Air flow N/A ANU1A&l8
26A MR 784 E7 M-2005-6-388 EB45A-5 3 Hour Yellow inves
M-2005-6-44B EB45A-5 3 Hour 160F Norm Air Flow N/A ANUIA&l8
27A MR 784 C14
Yellow Invei
160F Norm if- Flow N/A AHUIA&lB
28A MR 784 CIS M-2005-6-44B EB45A-5 3 Hour DIOS Bat Rm
160F Norir. Air Flow N/A AHUIA&lB
29A MR 784 E7 M-2005-6-38B EB45A-5 3 Hour
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TABLE FD-1 (Cont'd.)
PBNP FIRE DAMPER STUDY
Survey Damper Fusible Test Fan Off Associated ' Associated
Dwg! Dwg. Rating Rating Condition or cther Fan Area
No. Docu. tion No.
l
M-2005-6-18 EB45A-5 3 Hour 160F Norm Air Flow N/A AHU1A&l8 D105 Bat Rm
l 30A MR 784 N12
S4 M-2005-6-41 EB45A-5 3 Hour 160F Norm Air Flow N/A AHU1A&l8 D106 Bat Rn
I
31A MR 784
M-2005-6-20 EB45A-5 3 Hour 160F Norm Air Flow N/A AHU1A&lB D106 Bat Rm
32A MR 784 E22
C
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TA8LE FD-2
Air Flow Velocity Press.0 rop Section Velocity Press. Drop FD-1 Configuration '
Damper Size
I No. In. cfm fpm In. Water In. fpm In. Water Installed Evaluated
1975 .120 16x17 3950 433 b b
1 16x34 7460
.120 18x17 3887 .433 b b
2 18x34 8260 1944
.120 20x17 3838 .400 b b
3 20x34 9060 1919
.120 20x18 3944 433 b b
4 20x36 9860 1972
.012 6x12 600 .012 b b
5 6x12 300 600
.030 8x18 1000 .030 b b
6 8x18 1000 1000
1134 .034 12x18 1134 .034 b b
7 12x18 1700
.037 12x24 1200 .037 b b
8 12x24 2403 1200
21 12x12 470 470 .019 12x12 470 .019 d a..
.019 12x12 470 .019 d a,d
22 12x12 470 470
14x30 4050 1388 .054 14x30 1388 .054 c a(2)
24
30x30 12000 1920 .120 30x30 1920 .120 f f
31
32 30x30 12000 1920 .120 30x30 1920 .120 f f
'
33 18x30 12000 3200 .296 18x30 3200 .296 f f
.017 6x18 734 .017 e a,e
34 6x18 550 734
22x25 576 .012 d a,d
35 22x25 2200 576 .012
.037 18x36 1222 .037 b b
36 18x36 5500 1222
1467 .060 18x30 1467 .060 e c
37 18x30 5500
.002 12x24 235 .002 a a
1A 12x24 470 235
1
12x24 235 .002 a a
'
2A 12x24 470 235 .002
18x24 940 313 .003 18x24 313 93 a a(1)
3A
300 300 .003 12x12 300 .003 a a(1)
4A 12x12 a(1)
12412 300 300 .003 12x12 300 .003 a
20x30 3750 900 .025 20x30 900 .025 c c(1)
6A a : )
30x36 2810 375 .005 30x36 375 .005
7A g g-
12x12 1500 1500 .060 12x12 3000 .264
11A g g
12x12 1500 1500 .060 12x12 3000 .264
12A g g
12x12 1500 1500 .060 12x12 3000 .264
13A g g
12x12 1500 1500 .060 12x12 3000 .264
14A g g
12x12 1150 1150 .034 12x12 2300 .124
15A g g
12x12 1150 1150 .034 12x12 2300 .124
16A b b
16x24 3230 1210 037 16x24 1210 .037
25A b b
8x24 3230 2422 .147 8x24 2422 .147
26A b b
12x20 2550 1530 .065 12x20 1530 .065
27A b
16x16 2550 1435 .057 16x16 1435 .057 b.
28A
_ _ _ _ _ _ _ _ _ _ - _ _ .
!
TABLE FD-2 (C:nt'd.)
Velocity Press. Drop Section Velocity Press. Drop FD-1 Configuration
Damper Size Air Flow Installed Evaluated
No. In. cfm fpm In. Water In. fpm In. Water
1
.090 12x12 1840 .090 b b
29A 12x12 1840 1840
.054 12x16 1380 .054 a a
30A 12x16 1840 1380
.034 12x16 1140 .034 b b
31A 12x16 1520 1140
12x12 1520 .065 a a
32A 12x12 1520 1520 .0E5
(1) Damper functionally tested during Halon fire suppression system discharge tests. 7
! (2) Shutdown of fans W-27A&B enhances damper operability.
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