(>'3 RESULAIY INFDRRATIDN DISTRIBUTI+SYSTER (SIDS)
ACCESSION NBR: 8605160239 DOC. DATE: 86/05/13 NOTARIZED: NO DOCKET 0 FACIL:50-275 Diablo Canyon Nuclear Power Planti Unit 1B Pacific Ga 05000275 ~ .50-323 DiabLo Canyon Nuclear Power Plant. Unit 2B Pacific Ga 05000323 AUTH. NAME AUTHOR AFFILIATION BHIFFER.J. D. Pacific Qas 5 Electric Co. 'RECIP. NAl'1E RECIPIENT AFFILIATION VARQA> S. A. PMR Prospect Directorate 3 SUBJECT: Forwards engineering evaluation resolving issue of adequacy of fine dampers identified in Insp Repst. 50-275/85-36 5 50-323/85-34. Encl info based on results oF.'860320 meeting w/NRC. Aceptable fine protection measures incorported.
DISTRIBUTION CODE: A006D COPIEB RECEIVED: LTR I ENCL ~~ SIZE: TITLE: OR" Buhmi ttal: Fire Protection NOTES:
RECIP IENT COP IEB RECIPIENT COP IES ID CODE/NANE l TTR ENCL ID CODE/MANE LTTR ENCL PMR-A PD'3 PD 01. 3 3 SCHIERLINQB H 1 1
INTERNAL: ACRS 11 3 3 ADN/LFNB 0 ELD/HDS2 1 0 IE MHITNEYaL NRR BI4R DIR 1 1 NRR PNR-A.DIR 1 NRR PWR-8 DIR 1 1 NRR BTANQB J 07 2 2. R EILB J06 1 0 NRR/DHFT DIR 1 EQ 04 1 1 RQN5 1
EXTERNAL: 24X 1 1 LPDR 03 NRC PDR 02 1 1 NBIC 05
t
~ ~ 'i f5F, I
TOTAL NUMBER OF 'COPIES REQUIRED'TTR 24 ENCL '1 Y', ~ w {UGLR) hHTViYE ) ITUGIRTQIG NQITANRQRNL A lUQ38 T
TrBPIDDcj QN:GJZ K RATQN r- l. X U0%68 STAG .300 E'C'i06L PO68 :RON MQIBB3:>DA QVQOOOV,O "0 ai'live~ J finV ifnr I l zvrrro=l ",a>L~uN narrne3 oLdriG Or'.: J I OAS CDCOOOC 0 r 0 vk'l ior,'l iB 4inU ifn6LR redo'l vr">LouN nalrnr3 aLdoiG CGC. Od. NQITAK l?~i-'iA ROHTVA XNAN .HTUA .a3 3i'rf39L3 8 oGO 3Ã% i JGR .G .4 . R:-1'R H Il lB NQITAIJIPIA TN'jI lIORH JNrAN .'ll33R C Bd'6 fof39 fiG 039r,o'r i BNH h .8 grvsuyebr %o 9rr>" i: pnivLoeev nai8suf ave gni veoni t)no aber'mvoR:TDBL GUP, 8 6C dBMV<~08ri'romani fzqsR qenI rri beilifrrobi zvoqmr b oni% qo pnif;)on> OGCOc'8 %a af fvase no baaed omni Lvn3.f 8-dBXC.'K-04 .b g„qo <~ O'Tuc. orlo rro if398ozq qni% 9 I deil'rig aA .3RNNvl ga " :SZIe -'3Na .'TJ.a~6'I~3ZR SaLOQO GaOOC~:aGQ3 WQITuarRTaIG naif ogdoad'l ski'8:LodfirrrduB RQ:BJTKT :8;jTQN 23K'IQ3 TN3L ll33R TNRI iIGHR JD83 RTTJ BNANXJGQ3 OI SNrANX 0 I Ul"IRJXNGA C C LL 8ROA,JANR3TNI J cY3NTIHN 3I 0 ~~BGl.lXG.lH I »LG A-RWS RRN RIG RWG RRN g 70 'l. QNAT8 URN RLG lI-RM'1 RRN I RIG TRHGiRRN 0 60r.i .JIBNRB<4 RRN VNQR I r'0 HJIR '-) JH RG~J l(f,'~:JANAJi X3 OIBN RG~ 3R'ij 'ONa i'S RTTJ:GJRIUe~R aZXWQ3 =lQ RaallUN JATuT PA.C IF 1C GA.B A.ND ELECTRIC C 0M'Y ~~LE ~ 77 BEALE STREET ~ SAN FRANCISCO, CALIFORNIA94106 ~ (415) 781 4211 ~ TWX 9)0 372.6587 JAMSS D. SHIFFSR VICE PRESIDENT IIVCLEIIIIPOWER CEIIEEATION Hay 13, 1986 PGandE Letter No.: DCL-86-133 Mr. Steven A. Varga, Director PHR Project Directorate No. 3 Division of PHR Licensing-A Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Hashington, D.C. 20555 Re: Docket No. 50-275, OL-DPR-80 Docket No. 50-323, OL-DPR-82 Diablo Canyon Units 1 and 2 Fire Dampers Dear Hr. Varga: In response to the issue raised concerning the fire dampers which were identified in IhE Inspection Reports Number 50-275/85-36 and 50-323/85-34, PGandE is enclosing the following information on the adequacy of certain existing fire damper configurations at DCPP. Based on the results of the meeting held with the NRC Staff on March 20, 1986, this information resolves the issue of the fire dampers. PGandE's fire protection engineer for Diablo Canyon has reviewed the enclosure to assure that acceptable fire protection measures have been incorporated. Kindly acknowledge receipt of this material on the enclosed copy of this letter and return it in the enclosed addressed envelope. Sincerely, Enclosure cc: L. J. Chandler 3. B. Hartin H. H. Hendonca B. Norton H. E. Schi erling CPUC Diablo Distribution 0826S/0044K/BKL/1167 8605160239 860513 PDR ADOCK 05000275 8, .PDR J 0 PGandE Letter No.: DCL-86-133 ENCLOSURE ENGINEERING EVALUATION OF FIRE DAHPERS tat m n f Problem Bechtel Problem Alert H-82-06 and NRC IE Information Notice 83-69 identified an industry-wide concern that many rated fire dampers had not been installed in accordance with manufacturer's recommendations. To determine if this situation also existed at Diablo Canyon, a complete examination of the as-built installation details was conducted. This examination has indicated that the manufacturers'nstallation instructions were not strictly adhered to on all assemblies. These differences have been categorized into four groups: ~rural Dampers in fireproofed ducts or sleeves A. Those attached to the face of-the wall with less than the manufacturer's specified expansion gap. B. Those located in ductwork some distance from the wall. Qrr,y 2 Dampers in concrete walls, with less than the manufacturer's specified gap between the sleeve and wall. Dampers in stud walls and suspended ceilings with less than the manufacturers specified gap between the sleeve and wall or ceiling opening. ~ru~4 Dampers not in safe shutdown areas which were installed at variance with the manufacturer's recommendations. In accordance with established PGandE procedures for evaluating potential nonconformances, two nonconformance reports were generated to address the cause and safety significance of these discrepancies. A review was made of the fire dampers whi ch protect safety-related equipment and are installed at variance from the manufacturer's installation details. It was determined that these variances would not prevent the safe shutdown of the plant. The following evaluation provides the basis for the above conclusion. 0826S/0044K ,v 1 1 FIRE DANPERS ~GR P l — Dampers in Fireproofed Ducts/Sleeves (Attachment A> Dampers that are installed outside the plane of the wall in fireproofed ducts and sleeves are judged acceptable based on the fact that the duct work and sleeves containing the dampers have been pyrocreted to provide a minimum 1-hour resistance rating. By letter of November 13, 1978, PGandE responded to NRC questions 5, 20, 21, and 27 relating to Appendix A to Branch Technical Position APCSB 9.5-1 by committing to fireproofing HVAC ducts in several rooms with a 1-hour rating. The 1-hour fireproofing was defined as'follows: "Metal lath and plaster ventilation fireproofing consist of 3/4-inch gypsum plaster over 3.4¹ diamond mesh.. As specified in the Gypsum Association Fire Resistance Design Manual, 1978 Edition, this assembly (GA File No. CM-1300) i s rated for one hour, based on test 92/40 performed by Building material and Structures, National Bureau of Standard, October 1942. This assembly is similar to Item No. 17 in Table 43-A of the Uniform Building Code, 1976 Edition." As a result of reviews by the NRC and the subsequent Safety Evaluation Report Supplements (SSER) No. 8 and 9 issued (November 14, 1978 and June 30, 1980), the historical acceptance of utilizing 1-hour fireproofing of HVAC ducts was established. In addition, the Appendix R reports for Units 1 and 2 submitted to the NRC in July, 1983 and December, 1984, verified PGandE's commitment to the 1-hour fireproofing of -HVAC ducts in several rooms. Therefore, based on the above referenced commitment and the NRC's historical and continuing approval of PGandE's design basis, the dampers in Group 1 are considered acceptable. 0826S/0044K ~ I i — Fi 0 p i th i fth fl11 Gild (Attachments B and C) Dampers in this group are installed in the plane of the wall or cei ling, with less than the manufacturers'pecified gap between the sleeve and the wall. The acceptability of the existing configuration i s based on one or more of the following: A. The actual fire loading in the areas indicates that the intensity and duration of any credible fire is less than the assumed ASTM E-ll9 fire used to test fire dampers; B. A total failure of the damper would not compromise the ability to achieve safe shutdown because the damper exists in walls which do not separate redundant safe shutdown equipment or circuitry; or C. If the damper is located in a wall which separates redundant safe shutdown equipment or circuitry, automatic sprinkler protection has been provided to reduce the potential thermal exposure to the assembly. The following briefly describes the justification of each damper that is not installed to the manufacturer's recommendations: 0826S/0044K c" 1. Fire Dampers 5116 (Unit 2) and 5130 (Unit 1). Both fire dampers are installed in the exhaust for the cable spreading rooms in the 3-hour fire rated west wall which separateswall the cable spreading rooms (fire areas 7-B and 7-A) from the HVAC shaft (fire area AB-3, fire zone S-1). The fire dampers are installed with less than the specified expansion gap in a fire area boundary . This wall protects redundant ci rcuits from potential external fire exposures. The fire severity in the cable spreading room is 44 minutes of in-situ combustibles and negligible transient combustibles and the fire loading in the HVAC shaft is negligible. The cable spreading room is provided with an automatic C02 total flooding system and smoke and fire detection. The dampers are interlocked to close upon C02 system actuation. Because the total flooding C02 fire suppression system is designed to control and extinguish any fire in the cable spreading room, temperatures of sufficient intensity and duration to cause a damper failure are not considered credible. However, assuming an unmitigated failure, safe shutdown would not be affected because of insufficient combustible loading, and lack of continuity of combustibles in the ventilation shaft to support an exposure fire which could communicate into the cable spreading room. Fire propagating from the cable spreading room into the HVAC shaft would not affect safe shutdown because this shaft does not communicate to any area which is considered redundant to the cable spreadi ng room. 0826S/0044K I' Y Aa 2. Fire Dampers 5114 (Unit 1) and 5171 (Unit 2). Both fire dampers are installed in the 3-hour fire barrier wall separating the 12 KV switchgear rooms (part of fire area 10 and 20) from the corridors (fire areas ll-D and 22-C). The fire severity in the switchgear rooms is 1 minute of in-situ combustibles and 1 minute of transient combustibles. The corridor has no in-situ combustibles and a fire severity of 12 minutes of transient combustibles. The corridor is also provided with automatic sprinkler protection. The 12 KV switchgear is provided with smoke detection and both the swi tchgear room and corridor are provided with fire hose station and portable extinguishers. At least one set of redundant safe shutdown circuits in the switchgear rooms and corridors are installed in conduit which is located in separate 2-hour fire rated enclosures. The fire dampers are installed with less than specified expansion gaps. If a fire did occur in either the corridor or the switchgear room which breached the fire damper, the fire would not affect safe shutdown because the wall does not separate redundant equipment or circuitry. The combination of low fire loading, smoke detection, suppression in the corridor, and separate fire barri er enclosures for redundant trains provide adequate assurance that a fire will not affect safe shutdown of the plant. 0826S/0044K k I ~ I h E e 1' 3. Fire Damper 5021A. This 3-hour multi-blade fire damper is installed in the 3-hour fire barrier that separates the 4 KV swi tchgear room (fire area TB-5, fire zone 13-8) from the excitation swi tchgear room (fire area 13-D) . The duct attached to the damper sleeve passes through the excitation switchgear room and supplies air to the 4 KV swi tchgear room. This duct is fireproofed in zone 13-D. An outlet register is attached to the 4 KV switchgear room side of the sleeve . The fire severity in the 4 KV switchgear room is 14 minutes of in-situ combustibles and 1 minute of transient combustibles and the fire loading in the excitation swi tchgear room is 2 minutes of in-situ combustibles and 2 minutes of transient combustibles. Both rooms are provided with smoke detection, fire hose stations, and portable fire extinguishers. The fire damper is designed to close at 165'F. The damper blades are shielded from direct radiation by the outlet register on one side and the fireproofed duct on the other. fven after the damper closes, the supply system will continue to supply air to the backside of the damper providing some convection cooling effects to limit damper temperatures. Assuming the unmitigated failure of the damper, safe shutdown would not be affected because this barrier does not separate redundant safe shutdown equipment or circuitry. 0826S/0044K 4 f 5 II 'I h ~ ~ ~, 4. Fire Damper 5050 (Unit 1). This fire damper is located in a barrier wall that separates the CCH heat exchanger room (fire area 14-E) and the pipe chase (fire area TB-7, fire. zone 14-A) in the turbine building. The barrier wall is fireproofed with pyrocrete on the pipe chase side of the wall only. The fire severity in the CCH heat exchanger room is 12 minutes of in-situ combustibles and 4 minutes of transient combustibles, and fire load for the pipe chase area near the fire damper is negligible. An automatic sprinkler system and smoke detection is provided for the CCH heat exchanger room. There are redundant safe shutdown equipment and circuits located in CCW heat exchanger room but no safe shutdown equipment or circuits are located in the pipe chase area (between columns H and J). The damper is installed with less than the specified expansion gap. In the event a fire did occur in the pipe chase area, there is insufficient combustible loading to sustain a fire. In the unlikely event the fire damper was breached, the sprinkler system in the CCH heat exchanger room would protect the equipment in that room. The combi nation of the automatic sprinkler system and low fire loading provides adequate assurance that a fire in the pipe. chase or CCH heat exchanger room will not prevent safe shutdown of the plant. 0826S/0044K "I ~ I 5. Fire Dampers TV-5111 (Unit 1) and TV-5119 (Unit 2). Both fire dampers are located in the fire barrier wall separating the anterooms (fire area TB-6, fire zone 12-C; and fire area TB-12, fire zone 23-C) from the yard area. On Unit 1, a startup transformer is located approximately 20 feet from the building where the damper is located. On Unit 2, a startup transformer is located approximately 50 feet from the building where the damper is located. The transformers are provided with automatic deluge systems. The fire dampers are installed with less than the specified expansion gap. If a fire did occur that involved the transformers, the deluge systems will control and extinguish the fire. In the unlikely event a fire breached these dampers, only one train of safe shutdown circuits located in the anterooms would be affected. Since no more than one division of safe shutdown components will be affected by an unmitigated fai lure of the damper, adequate assurance is provided that safe shutdown can be achieved. 0826S/0044K 6. Fire Damper 5143B (Unit 2). The fire damper is located in the fire barrier that separates the anteroom (fire area TB-12, fire zone 23-C) from the stairwell (fire area TB-7, fire zone S-7). The fire severity in zone 23-C is 18 minutes of in-situ combustibles and 1 minute of transient combustibles, and most of the fire loading is in the cable spreading room. The cable spreading room is provided with detection. The fire loading in the stairwell is negligible. The anteroom is separated from the 4 KV cable spreading room on the east side by nonrated wall, and the fire damper is located on the west wall, on the opposite side of the ante room from the cable spreading room. The anteroom and cable spreading room have only one train of safe shutdown equipment located in the room. No safe shutdown equipment is located in the stairwell. The fire damper is installed with less than the specified expansion gap. The fire loading in both rooms located on either side of the fire damper is that> such if a fire occurs, the damper wi 11 not be subject to full expansion. Assuming an unmitigated failure and that a fire did breach the damper and affect the anteroom, only one safe shutdown train wi 11 be affected. Therefore, the fire will not prevent safe shutdown of the plant. 0826S/0044K 0 I't 4 7. Fire Dampers 5124A (Unit 1) and 51248 (Unit 2). These dampers are multi-blade 3-hour fire-rated assemblies mounted in 1-hour rated walls between the turbine and motor driven auxiliary feedwater pumps with no connecting ductwork. The fire areas are 3-Q-1 and AB-1 (fire zone 3-Q-2) in Unit 1 and 3-T-l and AB-1 (fire zone 3-T-2) in Unit 2. The fire severity for fire areas 3-Q-1 and 3-T-1 are 18 minutes of in-situ combustibles and 35 minutes of transient combustibles. The fire load for fire area AB-l, fire zones 3-Q-2 and 3-T-2 is 1 minute of in-situ combustibles and ll minutes of transient combustibles. Smoke detection and automatic sprinkler suppression is provided on both sides of the wall. Because of the moderate-to-low fire load and the presence of automatic suppression equipment, fire propagation through the damper would not be anticipated. Fire areas 3-Q-1 and 3-T-1 were reviewed by the NRC in SSERs 23 and 31, respectively. In these areas, the walls and duct without fire dampers were found acceptable. The evaluation was based on limited fire exposure and automati c detection and suppression. Active suppression provides adequate assurance that safe shutdown capability can be maintained. 0826S/0044K -10- ~ (I K e 0 8. Fire Dampers TV-5052 (Unit 1) and TV-5053 (Unit 2). Both fire dampers are located in a barrier wall that separates the CCH heat exchanger room (fire areas 14E 5 19E) from the condenser area (fire area TB-7, fire zone 14A h 19A). The fire severity in the CCH heat exchanger room is 12 minutes of in-situ combustibles and 4 minutes of transient combustibles. The fire loading in the adjacent areas of the Turbine Building is approximately 10 minutes. The areas on both sides of the wall are protected with automatic sprinkler system, and smoke detection is provided for the CCH heat exchanger room. The dampers are installed without sufficient gap for expansion and are in a fire area boundary wall. This wall protects redundant equipment and control circuitry from potential external fire exposures. In the unlikely event a fire did occur on either side of the barrier, the sprinkler systems'ill extinguish the fire and prevent a fire from propagati ng through the fire barrier to the other side. Therefore, the automatic sprinkler systems on both sides of the barri er wall provides adequate assurance that a fire in the condenser areas or CCH heat exchanger rooms will not prevent safe shutdown of the plant. 0826S/0044K -11- n v~ : E t 9. Fire Dampers 5025, 5026, 5027, 5028, 5029, 5030, 5034, 5035. These dampers are mounted vertically in the metal stud and plaster 2 hour walls between the Chemical Engineer's office, chemical laboratory and counting room in fire area 4A and adjoining first aid room, hallways, and offices of fire area 4B. Nhi le no safe shutdown equipment exists in these zones, cables in conduit associated with shutdown equipment are located in the ceiling space above these zones. The in-situ fire severity in these zones are 21 minutes in the laboratory, 47 minutes in the counting room, 107 minutes in the Chemical Engineer s office of area 4A, 63 minutes in the office, 33 minutes in the access control, 41 minutes in the first aid room, and 21 minutes in the hallway of area 4B. Each room has separate smoke detection above and below the suspended ceilings. Area-wide, automatic sprinklers are provided below the ceiling in each area. These dampers have only minor deficiencies between the as-built configuration and the manufacturer's recommended installation criteria. They exhibit one or more of the following: 1) Retaining angles not continuous around the perimeter of the sleeve or i nsuffi ci ent overlap of the wall opening; 2) Retaining angles welded at the corners, and 3) the fire damper is not fastened to the sleeve in the recommended manner. There is adequate expansion gap around the dampers. This, combined with the area-wide automatic sprinkler system and smoke detection, provides adequate assurance that safe shutdown capability will be mai ntai ned even with an unmitigated failure of the dampers. 0826S/0044K - 12— 10. Fire Dampers 5031, 5036, 5146, 5147, 5148, 5149, 5150, 5151, 5152, 5153, 5154, 5155, 5156, 5157, 5158, 5159. These dampers are mounted horizontally in the 1-hour suspended ceiling above 'fire area 4A. These dampers differ from those in item 9 only by their ori entation. Theassemblies di scussion on item 9 above, therefore, is applicable to these . 0826S/0044K — 13— 0 ll. Fire Dampers 5032 and 5033 (Unit 1). The affected fire areas are 4A and 4B. These assemblies are located in ~ the wall separating the access control area from the chemical laboratory. Hhile no safe shutdown equipment exists in this zone, cable in conduit associated with safe shutdown equipment is located in the ceiling space above these fire zones. Both areas have suspended ceilings. The ceiling in the chemistry laboratory is rated for 1 hour. The ceiling in the access control area is not rated. The fire severity in the chemical lab area is 21 minutes. The fire load in the access control area is 35 minutes of in-situ combustibles. The combustible loading is below the rating of the suspended ceilings. Each room has separate smoke detection above and below the suspended ceilings. Area-wide, automatic sprinklers are provided below the cei ling,= in both areas. These dampers are a round type in a 14" diameter fiberglass duct and sleeve. The wall is a 5-1/2 inch thick metal stud construction rated for 2 hours. Clearances are adequate. Only the use of a fiberglass sleeve is not in accordance with the manufacturer's installation criteria. The area-wide automatic sprinkler system and smoke detection provides adequate assurance that safe shutdown capability will be mai ntai ned even with an unmitigated failure of the dampers. 0826S/0044K -14- 12. Fire Dampers 5039A, 5039B, 5041A, 5041B The affected Fire Areas are 3-BB, 14-A and 3-CC, 19-A. The fire dampers ~ are located in the west wall of the Post-LOCA Sampling Rooms of Fire Areas 3-BB and 3-CC and communicate to the pipe rack areas of the 85'levation of Fire Areas 14-A and 19-A. The Post-LOCA Sampling Rooms and pipe rack areas are not considered safe shutdown areas, and HVAC systems in the Post-LOCA Sampling Rooms are non-Class l. Post-LOCA Sampling Rooms are provided with smoke detection throughout. Combustible loading is 4 minutes of i nsi tu combustibles in the Post LOCA sampling room and negligible in the pipe chase area. Since these dampers do not exist in a wall which separates redundant safe shutdown equipment or circuits, an unmitigated failure can not affect safe shutdown. 0826S/0044K — 15— 0 ~RUP 4 — Fire Dampers in Areas Hithout Safe Shutdown Equipment or Circui ts (Attachment D) Dampers in this group have been installed with deviations similar to those of the dampers discussed above. Dampers in this group have not been analyzed as those previously because they do not exist in fire boundary walls separating safe shutdown equipment or circuits. They are bei ng addressed because of their role in the over-all fire protection program at DCPP in minimizing property damage from a potential fire. The acceptability of existing configuration i s based on the following: A. The actual fire loading in the areas indicates that the intensity and duration of any credible fire is less than the assumed ASTH E-119 fire used to test fire dampers. B. Automatic fire suppression systems (total flooding C02, water spray, or automati c spri nklers) are installed on one or both sides of the boundary. These systems have been designed to contain and suppress a fire which otherwise could compromise the integrity of the damper. Refer to Attachment D for specific detail concerning these dampers. Attachments 0826S/0044K -16- h ~ (GROUP 1) FIRE DAMPERS IN FIREPROOFED DUCTS/SLEEVES FIRE DAMPER LOCATION APPENDIX R REPORT, REMARKS N MBER FIRE AREA FIGURE N MBER TV-5001A 5-A-3 (Ul) Figure 3-8 Sleeve Cantilevered off Wall. (Ul) (Supply) TV-5002A 5-A-2 (Ul) Figure 3-8 Sleeve Cantilevered off Wall. (Ul ) (Supply) TV-50018 5-8-3 (U2) Figure 3-8 Sleeve Cantilevered off Wall (U2) (Supply) TV-50028 5-8-2 (U2) Figure 3-8 Sleeve Cantilevered off Wall (U2) (Supply) TV-5003A 5-A-1 (Ul) Figure 3-8 Behind Supply Grill on Duct (Ul) TV-50038 5-8-1 (U2) Figure 3-8 Behind Supply Grill on Duct (U2) TV-5004A 6-A-3 (Ul) Figure 3-9 Cantilevered of Supply Duct (Ul ) TV-5005A 6-A-2 (Ul) Figure 3-9 Cantilevered of Supply Duct (Ul ) TV-5006A 6-A-1 (Ul) Figure 3-9 Cantilevered of Supply Duct (Ul ) TV-50048 6-8-3 Figure 3-9 Canti 1 evered of Supply Duct (U2)'-B-2 (U2) TV-5005B (U2) Fi gure 3-9 Cantilevered of Supply Duct (U2) TV-5006B 6-B-1 (U2) Figure 3-9 Cantilevered of Supply Duct (U2) TV-5007A 5-A-3 (Ul) Figure 3-8 Cantilevered of Exhaust Duct (Ul ) TV-5008A 5-A-2 (Ul) Figure 3-8 Cantilevered of Exhaust Duct (Ul) TV-5009A 5-A-1 (Ul) Figure 3-8 Cantilevered of Exhaust Duct (Ul) R TV-5007B 5-B-3 (U2) Figure 3-8 Cantilevered of Exhaust Duct (U2) 0826S/0044K 1 e FIRE DAHPERS IN FIREPROOFED DUCTS/SLEEVES FIRE DAHPER LOCATION APPENDIX R REPORT, REHARKS N HBER FIRE AREA FI RE N HBER TV-5008B 5-B-2 (U2) Figure 3-8 Cantilevered of Exhaust Duct (U2) TV-5009B 5-B-1 (U2) Figure 3-8 Cantilevered of Exhaust Duct (U2) TV-5010A 6-A-3 (Ul) Figure 3-9 Bottom of Exhaust Duct (Ul ) TY-5011A 6-A-2 (Ul) Figure 3-9 Bottom of Exhaust Duct (Ul ) TV-5012A 6-A-1 (Ul) Figure 3-9 Bottom of Exhaust Duct (Ul ) TV-5010B 6-B-3 (U2) Figure 3-9 Bottom of Exhaust Duct (U2) TV-5011B 6-8-2 (U2) Figure 3-9 Bottom of Exhaust Duct (U2) TV-5012B 6-8-1 (U2) Figure 3-9 Bottom of Exhaust Duct (U2) TV-5013A 6-A-3 (Ul) Figure 3-9 Bottom of Exhaust Duct (Ul ) TV-5014A 6-A-2 (Ul) Figure 3-9 Bottom of Exhaust Duct (Ul ) TV-5015A 6-A-1 (Ul) Figure 3-9 Bottom of Exhaust Duct (Ul ) TV-5013B 6-B-3 (U2) Figure 3-9 Bottom of Exhaust Duct (U2) TV-50148 6-8-2 (U2) Figure 3-9 Bottom of Exhaust Duct (U2) TV-5015B 6-8-1 (U2) Figure 3-9 Bottom of Exhaust Duct (U2) TV-5016A 6-A-3 (Ul ) Figure 3-9 Canti 1 evered of Supply Duct . (Ul ) TV-5017A 6-A-2 (Ul ) Figure 3-9 Cantilevered of Supply Duct (Ul ) TV-5018A 6-A-1 (Ul ) Figure 3-9 Canti 1 evered of Supply Duct (Ul) 0826S/0044K ~ g 4 FIRE DAMPERS IN FIREPROOFED DUCTS/SLEEVES FIRE DAMPER LOCATION APPENDIX R REPORT, REMARKS N MBER FIRE AREA FIGURE NUMBER TV-5016B 6-B-3 (U2) Figure 3-9 Cantilevered of Supply Duct (U2) TV-5017B 6-8-2 (U2) Figure 3-9 Cantilevered of Supply Duct (U2) TV-5018B 6-8-1 (U2) Figure 3-9 Cantilevered of Supply Duct (U2) TV-5042 8-H (U2) Figure 3-10 In Horizontal Duct (U2) TV-5043 8-G (Ul) Figure 3-10 In Horizontal Duct (Ul ) TV-5044 8-H (U2) Figure 3-10 In Duct, Off Wall (U2) TV-5045 8-G (Ul) Figure 3-10 In Duct, Off Wall (Ul ) TV-5115 7-B 5 S-5 Figure 3-11 In Duct, Off Wall (U2) (U2) TV-5131 7-A 5 S-5 Figure 3-11 In Duct, Off Wall (Ul ) (Ul ) 0826S/0044K -3- A~t (GROUP 2) FIRE DAMPERS IN PLANE OF CONCRETE HALLS FIRE DAMPER LOCATION APPENDIX R REPORT, NUMBER FIRE AREA FI RE N MBER TV-5116 7-B & S-1 (U2) Figure 3-11 (U2) TV-5130 7-A & S-1 (Ul) Figure 3-11 (Ul ) TV-5114 10 & 11-D (Ul) Figure 3-1 (Ul ) TV-5171 20 & 22C (U2) Figure 3-1 (U2) TV-5021A 13-B & 13-D (Ul) Figure 3-3 (Ul) TV-5039A 3BB & 14-A Figure 3-1 & 3-7 (Ul ) 'TV-5039B 3-CC & 19-A Figure 3-1 (U2) TV-5041A 3BB & 14-A Figure 3-1 & 3-7 (Ul) TV-5041B 3-CC & 19-A Figure 3-1 (U2) 0826S/0044K 4 Sttachh t C (GROUP 3) FIRE DAMPERS IN PLANE OF STUD HALLS AND CEILINGS FIRE DAMPER LOCATION APPENDIX R REPORT, N MBER FIRE AREA FI RE N MBER TV-5050 14-E & 14-A (Ul) Figure 3-1 (Ul) TV-5111 12-C & Yard (Ul) Figure 3-2 (Ul ) TV-5119 23-C & Yard (U2) Figure 3-2 (U2) TV-5143B 23-C & S-7 (U2) Figure 3-2 (U2) TV-5124A 3-Q-1 & 3-Q-2 (Ul) Figure 3-8 (Ul ) TV-5124B 3-T-1 & 3-T-2 (U2) Figure 3-12 (U2) TV-5052 14-E & 14-A (Ul) Figure 3-1 (Ul ) TV-5053 19-E & 19-A (U2) Figure 3-1 (U2) TV-5025 4A & 4B Figure 3-7* TV-5026 4A & 4B Figure 3-7* TV-5027 4A & 4B Figure 3-7* TV-5028 4A & 4B Figure 3-7* TV-5029 4A & 4B Figure 3-7* TV-5030 4A & 4B Figure 3-7* Figure 3-7 incorrectly shows duct penetrations without fire dampers. Fire dampers are installed as listed in this table. 0826S/0044K (GROUP 3) FIRE DAMPERS IN PLANE OF STUD HALLS AND CEILINGS FIRE DAMPER LOCATION APPENDIX R REPORT, NUMBER FIRE AREA FI RE N MBER TV-5032 4A &4B Figure 3-7 TV-5033 4A & 4B Figure 3-7 TV-5034 4A & 4B Figure 3-7 TV-5035 4A & 4B Figure 3-7* TV-5031 4A Figure 3-7* TV-5036 4A Figure 3-7 TV-5146 4A Figure 3-7 TV-5147 Figure 3-7 TV-5148 4A Figure 3-7 TV-5149 4A Figure 3-7 TV-5150 4A Figure 3-7* TV-5151 Figure 3-7* TV-5152 4A Figure 3-7* TV-5153 4A Figure 3-7* TV-5154 4A Figure 3-7* TV-5155 Figure 3-7* TV-5156 4A Figure 3-7* TV-5157 4A Figure 3-7* TV-5158 4A Figure 3-7* TV-5159 Figure 3-7* * Figure 3-7 incorrectly shows duct penetrations without fire dampers. Fire dampers are installed as listed in this table. 0826S/0044K ~h (GROUP 4) FIRE DAHPERS IN AREAS WITHOUT SAFE SHUTDOWN EQUIPMENT OR CIRCUITS FIRE DAMPER LOCATION APPENDIX R REPORT, N MBER FIRE AREA FI RE N MBER'EMARKS TV-5048 15 & 14-A Figure 3-2 Lube Oil Storage Room (Ul ) TV-5054 14-C & 14-A Figure 3-3 H.C.C. to Turbine Bldg. (Ul ) TV-5056 14-C & 14-A Figure 3-3 H.C.C. to Turbine Bldg. (Ul ) TV-5057 17 &16 Figure 3-3 Work Planning Center offices to Machine Shop TY-5058 17 Figure 3-3 Work Planning Center offices to Machine Shop TV-5059 17 & 14-A Figure 3-3 Work Planning Center offices to Machine Shop TV-5100 16 & 19-A Figure 3-1 (Ul) Machine Shop to offices Figure 3-1 (U2) TV-5101 16 Figure 3-1 (Ul) Machine Shop to offices Figure 3-1 (U2) TV-5102 16 Figure 3-1 (Ul) Machine Shop to offices Figure 3-1 (U2) TV-5103 16 Figure 3-1 (Ul) Machine Shop to offices Figure 3-1 (U2) TV-5108 16 Figure 3-1 (Ul) Machine Shop to offices Figure 3-1 (U2) TV-5109 16 Figure 3-1 (Ul) Machine Shop to offices Figure 3-1 (U2) TV-5110 16 Figure 3-1 (Ul) Machine Shop to offices Figure 3-1 (U2) NOTE: Some dampers in this group are not depicted on Appendix R drawings. 0826S/0044K 0 lilac h t (GROUP 4) FIRE DAMPERS IN AREAS WITHOUT SAFE SHUTDOWN EQUIPMENT OR CIRCUITS FIRE DAMPER LOCATION APPENDIX R REPORT, N MBER FIRE AREA FI RE N MBER REMARKS TV-5120 24-D Figure 3-3 Excitation switchgear to (U2) outside by transformers TV-5121 23-E Figure 3-3 Isophase bus to outside (U2) by transformers TV-5126 18 5 19-A Figure 3-2 Lube oil storage (U2) TV-5142 North of 14A Figure 3-1 Door to act as shutter (Ul ) over duct work — reverse osmosis TV-5160 18 5 19-A Figure 3-3 Lube Oil to Turbine Bldg. (U2) TV-5162 19-B & 19-A Figure 3-3 M.C.C. to Turbine Bldg (U2) TV-5168 19-C L 19-A 501398 515573 Oil reclamation to T.B. (U2) TV-5169 19-C E( 19-A 501398 515573 Oil reclamation to T.B. (U2) 082 6S/0044K r+ 0 V 0 r~