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PEASIUILI'fY STATE OF TIIE AIVI' PROS - A(;ltI.I:I) C<strong>ON</strong>S - ACl
CATEGORY : I 11.10 XiGH PRESSURE RYR SfSTEW NUNDER CO?U.E:JTIXG 4 FEASIBILITY STATE OF THE ART PROS - AGREED C<strong>ON</strong>S AGREED POTENTIAL FOR IMPROVED RESISTANCE TO SABOTAGE IMPACTS ACCEPTABLE YES -- NO -- REMARKS 0 1 Only piping needs to be up- graded, not entire system. 1 1 Increases consequences of potential sabotage event since a high and not a low pressure system would penr- trate containment. 2 0 May be
Page 1 and 2:
Annette Vietti-Cook, Secretary U.S.
Page 3 and 4:
No. (3) Comment aircraft impact, wi
Page 5 and 6:
No. (5) Comment December 14, 2007 P
Page 7 and 8:
NUCLEAR POWER PLANT DESIGN CONCEPTS
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ABSTRACT . Using a modern design fo
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CONTENTS (Continued) Traditional Co
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ILLUSTRATIONS (Continued ) Figure 7
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Table TABLES (Continued) 8-2 Probab
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RCS RHRS RPS RSS RTS RWST SAFE SIS
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: A sahotaqe t-hreat nay arise from
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I Public risk clue to sabotage is,'
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Somewhat contrary to the physical s
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I General Program Flow and Scope 2.
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Baseline Plant Characterizatlon The
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* Damage Control Options - In this
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Evaluation of Preliminary Reference
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:iabotaye . Vault '~'rcc for Plant
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Prom a fault tree, an equlvdlent ii
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4. Reactor protrrt ion syster (PI'S
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loss-of-coolant accident (LoCA) rit
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mitigate or prevent damage to the c
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Vital - Area Analysis The primary e
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When the complement of the location
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. , 3 ..: 1. Hardening critical sys
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I Addition of Systems -- The final
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Table 4-1 Categorization of Design
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Although the attributes described a
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A summary of the initial findings o
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observation can be made for isolati
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Several options (i.4, 11.6, and 11.
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Table 4-5 Categorization of Design
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, . .,. . . - . . . . ~ Findings on
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For example, additional remote indi
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would be to use the plant fire prot
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with such events and because the co
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initial condition, the time availab
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' All reactor control rods are assu
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Option Function Table 5-3 Evaluatio
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the fifth option, which has only mi
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the problem, ( 3) assess the diffic
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other difficulties that were beginn
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Table 6-1 Cost Estimate Summary of
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of 4 to 13 minutes based upon data
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excavation, a base mat, and tank. T
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0 J @ a CONTAINMENT ELM;. PENETRATI
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RECIRC. O OVERHEAD CDNTAlMNT LCY-HE
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opq BORIC ACID STORAGE TANKS .
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.. . 2 (ft I . . .'._ . ,, . ., ' .
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were considered, but their inclusio
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Table 6-4 Cost ~stimates for. Equip
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modified plant (see Appendix G) and
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qp PRESSURIZER
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DHRS, startup of the diesel generat
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The compressor also supplies contro
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Table 6-6 Cost Estimates for Harden
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Table 6-8 Piping Connections to Rea
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I The normal letdown piping, being
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7. PHYSICAL PROTECTION SYSTEH The p
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Secure central alarm station, Locks
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I is doors between the turbine hall
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Figure 7-4. Locations of Locked and
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,,.' Table 7-1 Characteristics of E
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with the baseline plant, there is a
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KEY 'ENGINEERED SAFETY FEATURE WATE
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KEY 0 STAnDARD DOOR: CARD READER/AL
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KEY fl STANOAR0 DOOR: KEY Figure 7-
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Table 7-4 Characteristics of Interi
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2. Increase the number of individua
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last barrier to vital equipment is
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Vital Area mergmncy cwling piping/v
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are generally comparable with the b
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caution is appropriate. For example
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Table 8-3 Typical Permanent Staffin
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Plant Ares Control rom PYR containm
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. , access to both trains as part o
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CHARGE PUMP Figure 8-3. CHARGE PUMP
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Effectiveness of Hardened Decay Hea
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the future to examine impacts or co
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compartments are adjacent or access
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If total plant costs are assumed to
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event that manual [peration is nece
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!X torque limiters on selected letd
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9. CONCLUSIONS AND RECOMMENDATIONS
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APPENDIX A Glossary of Terms Used i
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system vulnerability) or to better
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APPENDIX B Public Riek Due to Sabot
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where The risk due to sequence j le
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of damage control or consequence mi
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4 3. Physically separate vital comp
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APPENDIX C The Design Study Technic
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Name Alan R. Kasper Tobias W. T. Bu
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'5. W. Hickman, "Systems Analysis,
Page 203 and 204:
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TAKING ADVANTAGE or NATURAL PROTECT
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4.11 SEI'AIU'PION OF SAFETY IICIATE
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. . . , ' . . . . . . , ., , , , .
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,.. . ,. Providing enhaxed protecti
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2 1 . 3 Desirable Attr~tutes of Can
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TABLE 1-1 (can't) 'The column head~
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. . ... . l I I. SYSTEM DES IG3 CHA
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CATECORlZATlOll OF DESICI~I ALT - ,
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GENE RAL 3. DESCRIPTIOtG AND CISCUS
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of war. The ring tunnel containment
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3.3 MARDENED CONTAINMENT BUILDING,
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. ' :, mcnt entry. These factors op
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3.4.5 Summary - - - of DSTSG - Inpu
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. . . , It was also pointed out dur
Page 237 and 238:
3.6.5 Summary of DSTSG Input There
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. . . . . , , mcntator felt that co
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3.8.1 Disadvantages. If ,this conce
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systems and houzing them in separat
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. , in some G.S. ~lsnts. At San Cno
Page 248 and 249:
well as location of the spent fuel
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3d3.2 -. Sources This concept h.3::
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There were no side benefits idcntif
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3.14.4 - Disadvantages t The main d
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3.15.3 Advantages .. . The sabotage
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3.16.2 ---- Sources Physically sepa
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Indqpcndencc is considered low for
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3.18.2 Advantages The counter-sabot
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Depending on the means of implement
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power jumper cables, etc., to facil
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epairs under satotace emergency con
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3.21.3 Advantages The alternate con
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The counter-sabotayc aspects of und
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3.22.4 Disadvantages > The disadvan
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3.23.4 . . Disadvantages This conce
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3.24.6 Discussion The discussion pr
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' There was no clear indication of
Page 283 and 284: Thc DSTSG considered inpacts for th
Page 285 and 286: 3.27.6 Discussion This concept ellm
Page 287 and 288: The concept of a RHR system designe
Page 289 and 290: Appendix C contains a description o
Page 291 and 292: . System capacty is limited in time
Page 293 and 294: The DSTSS has raised questions on t
Page 295 and 296: controls and hardened enclosures, t
Page 297 and 298: . Summary Comparison of Ee$t Europe
Page 299 and 300: Applying Gernan Safety Philosophy a
Page 301 and 302: 4.16 ALTERXhl'E CONTROL ROOF! ARRAN
Page 303 and 304: . Design of Kr;Z' Lh'R Safety Syste
Page 305: . Standby and Esergency Power Suppl
Page 308 and 309: This Addcndun cuntai ns sununar ies
Page 310 and 311: I CATEGORY: 1.2 HARDENED CONTAINMEN
Page 312 and 313: CATEGORY: 1.4 HARDENED ENCLOSURE OF
Page 314 and 315: CATEGORY: 1.6 HARDENED ULTIMATE HEA
Page 316 and 317: CATEGORY: 1.8 HARDENED ENCLOSURE FO
Page 318 and 319: CATEGORY: 11.2 SEPARATION OF PIPZNG
Page 320 and 321: CATEGORY: 11.4 SPENT FUEL STORED RE
Page 322 and 323: CATEGORY: 11.6 SEPARATE ROOMS OR AR
Page 324 and 325: CATEGORY: 11.8 ECCS COMPONENTS WITH
Page 326 and 327: CATEGOPY : I I I. 1 ISOIAT ION OF L
Page 328 and 329: CATEGORY: 111.3 ALTERNATE CONTAINKE
Page 330 and 331: CATEGORY: 111.5 ADDITIOSAL PROTECTE
Page 332 and 333: CATEGORY: 111.7 TURBINE RUNBACK NUI
Page 336 and 337: CATEGORY: IV.l HARDENED CECAY HEAT
Page 338 and 339: Systt:m st~ou~d rlnt bc rt,str ictc
Page 340 and 341: System Description Independent Safe
Page 342 and 343: . , 2. A sinqle system: : 3. A sing
Page 344 and 345: I period of 10 hours without operat
Page 346 and 347: the initial phase of shutdown cooli
Page 348 and 349: Actuation of the ISSS results in th
Page 350 and 351: prcsurizer relief valves. Gradually
Page 352: Some of these fluid lines arc pro-~
Page 355 and 356: . ~ ,. : " The turbine is driven by
Page 357 and 358: . . coolant pressure that can be ob
Page 359 and 360: Feedwater Storaye Tank Each feedwat
Page 361 and 362: ISSS A:mosphcr1c D G T ~ Val.io?, ?
Page 363 and 364: A conceptudl arrdngement 1s st,~wn
Page 367 and 368: systems would he employed in thc BW
Page 369 and 370: As long as the time for ISSS opcrat
Page 374 and 375: ., ! 4 I 3 1 2 - . ! I,. ,.Y- .,.I'
Page 376 and 377: Potential Safcguar
Page 378 and 379: SECTION 3.5 Reactor Vessel Head Ven
Page 380 and 381: FIGURE 2-12 : 2-13 5,: . .. . 2-14
Page 382 and 383: P;IR Systems AC Power 1.7 Reactor C
Page 384 and 385:
DESIGN CHANGE Table 1.1. AC Power S
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DESIGN CHANGE Increase battery capa
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I I Replace I I (1) Table 1.5. Gene
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Table 1.7. PWA AC Power Syst DESIGN
Page 392 and 393:
I I I I Table 1.9. PWR Auxtttary Fe
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i Tahle 1.10. Emergency Core Coolin
Page 396 and 397:
1.. DESIGN CHANGE Table 1.12.BWRRes
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DAMAGE CONTROL ACTIVITY Jrovide a s
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Figure 2-1. AC Power System Design
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2.2 SWITCHGEAR AN0 K CATEGORY I I1
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are discussed in mre detail in a la
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2.5 UICSEL ft4CINE REV:SED COOLING
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Figure 2-3. Diesel Cooling and Lubr
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2.6.5 Discussion An emergency diese
Page 412 and 413:
equipnent. !%tor. controllers and d
Page 414 and 415:
Table 2-1. Safety-Related DC Loads
Page 416 and 417:
fnstrunrntation channel powered fro
Page 418 and 419:
2.11.5 Oi scussion The concern over
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2.12.2 Source This concept was iden
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equipment during routine plant surv
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insider sabotage and the dlfflcul t
Page 426 and 427:
2.16.3 Advantages The advantage of
Page 428 and 429:
2.17.1 Concept Thls concept 1nvolve
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2.18 COFPONEKT COOLING MOOIFICATION
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to accomplish both functions with o
Page 434 and 435:
2.19.4 . Disadvantages The lujor di
Page 436 and 437:
VALVE C00113B WATER ISOLATION VALVE
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....,.. c., Frol Other Loads To Ult
Page 440 and 441:
g u Outslde Alr / I Roof or Ida11 a
Page 442 and 443:
, . accessibility to the diesel and
Page 444 and 445:
. . .,,. . .. . .,. ,, ..* . . .. ,
Page 446 and 447:
3.3.4 Disadvantages No disadvantage
Page 448 and 449:
jI..'$ . $ 5 $!, .. . .:.;,: . ., I
Page 450 and 451:
Vmt Path A Figure 3-1. Reactor Vess
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3.7.2 Source Thls concept was tdent
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Pressurl zer c + hxlllrry Elect. /
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3.9 INCREASED EMERGEtiCY FEEOWATER
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pmvfded. In the case of a narltiple
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3.11.3 Advantages The advantage of
Page 462 and 463:
For operating plants which utilize
Page 464 and 465:
3.14.5 Discussion As mentioned in S
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3.16.4 Dl sadvantages The disadvant
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utfll ttd f n the RHR suction 1 lne
Page 470 and 471:
0 The heat exchanger shell provides
Page 472 and 473:
of two tube bundles imacrsed in a l
Page 474 and 475:
0 Provide an offsite reserve supply
Page 476 and 477:
condtttons, is a straightforward ma
Page 478 and 479:
REFERENCES '''power Plant Insulatto
Page 480 and 481:
Introduction EVALUATION AND SUMMARY
Page 482 and 483:
Table A-1 (Continued) Cdtryorlzntio
Page 484 and 485:
. , 2.4 MULTIPLE UNIT V;lAL kC LRUS
Page 486 and 487:
3.1 CLASS 1E AUXILIARY STEAM TCRBIN
Page 488:
envirorments. with the presence of
Page 491 and 492:
Page 493 and 494:
Table of Contents List of Tables Li
Page 495 and 496:
Fiq n-1 Fig C2-1 Fig C2-2 Fig C2-3
Page 497 and 498:
1.3 PURPOSE The purpose of this wor
Page 499 and 500:
2.1 DA.NAGE CONTROL ACTIONS The dam
Page 501 and 502:
ased on a variety of events (e.y..,
Page 503 and 504:
2.2.4 Reactor Vessel Decay Neat Rem
Page 505 and 506:
2.2.5 Spent Fuel Pool L I If sabota
Page 507 and 508:
5. Keeping damage control storage l
Page 511 and 512:
V., ,"". van lour
Page 513 and 514:
COMMENTS : . This may add another s
Page 515 and 516:
ENGINEERING CONCERNS: The proper NP
Page 517 and 518:
COMMENTS : I . . . . Hydraulic Limi
Page 519 and 520:
ITEM: EVALUATION NO. 5 (PWR) Manual
Page 521 and 522:
EVALUATION NO. 7 ITEM: (BWR) Substi
Page 523 and 524:
, ; . ,. . ITEM : FUNCTION : EVALUA
Page 525 and 526:
EVALUATION N e ITEM: (BWR) Provide
Page 527 and 528:
ITEM: FUNCTION : EVALUATION NO. 12
Page 529 and 530:
EVALUATION NO. 13 ITEM: (BWR 6 PWR)
Page 531 and 532:
COMMENTS : . Any condensate used mu
Page 533 and 534:
COMMENTS : Regulatoey concerns abou
Page 535 and 536:
ENGINEERING CONCERNS: Some componen
Page 537 and 538:
EVALUATION NO. 18 ITEM: (PWR) Steam
Page 539 and 540:
ENGINEERING CONCERNS: A desiqn effo
Page 541 and 542:
ITEM : FUNCTION : EVALUATION NO. 21
Page 543 and 544:
EVALUATION NO. 22 ITEM: (BWR & PWR)
Page 545 and 546:
F-G 0 OPERATIONAL CONSIDERAT1:ONS :
Page 547 and 548:
ITEM: EVALUATION NO. 25 (PWR & BWR)
Page 549 and 550:
1 A 1: AVAllAR1.E TISE CASE SEI.ECT
Page 551 and 552:
Case number: 2 Description: A charg
Page 553 and 554:
Case number: 3 . . ~escription: The
Page 555 and 556:
Case number: 5 Description: The res
Page 557 and 558:
Case number: 6 Description: Loss of
Page 559 and 560:
TO Calculate the heat required for
Page 561 and 562:
Page 563 and 564:
Results: Assuming the initial condi
Page 565 and 566:
Case number: 10 Description: RHR pi
Page 567 and 568:
Case number: 12 Description: Drain
Page 569 and 570:
case Huther Table 8-22 AVAILAb1.E T
Page 571 and 572:
Page 573 and 574:
The heat required for each p h~se i
Page 575 and 576:
Page 577:
lr~ss-01 -cwlant yceater than charg
Page 580:
APPENDIX B: INITIAL APPROACH TO DAM
Page 583:
I i i i ~ClncheI :c .%r:a-;cw: ' w
Page 586 and 587:
however, not all systems listed by
Page 588 and 589:
Acquire Damage Assuming there are s
Page 590 and 591:
6. Establishing the Limits of Trans
Page 592 and 593:
TABLE 0-3: SABOTAGE TIME LINE RESUL
Page 594:
Hllog in fuel ull inuck LC
Page 598 and 599:
LC TIME MWIW ULSIW -ntsk:- l!*uf"l
Page 600 and 601:
3 lnqlne starts or rrtanpcs Ea star
Page 602 and 603:
2 Enqtce s:ops. wall nor car=/ load
Page 604 and 605:
" ., . Initratfan 0 sabotaqa event
Page 606 and 607:
0 enq-he starts or at:empts t3 Star
Page 608 and 609:
SXBCTACE XODE: 5tar:l-q alr tank de
Page 610 and 611:
inirration 0 Albms and indications
Page 612 and 613:
SYSTS..: Relidudl Heat Ramova?. jys
Page 614 and 615:
Initilz~on 0 Demand tar X. syeern.
Page 616 and 617:
Iaitiacion 0 Demand :sr Afi4 yYtel.
Page 618 and 619:
34-i~2 min. Note: Riarnq stem '~alv
Page 620 and 621:
SYSTZX: Auxa;;ar( Peedwe-er System
Page 622 and 623:
C~n=:?l Room Response u :ntar!al fo
Page 625 and 626:
:2itlrtion 0 Sabocaqe event occurs.
Page 627 and 628:
112-1147 min. IAsswrnq sp1ic:nq. no
Page 629 and 630:
Xiamo and :ndrcatrans 9-13 nm. Cont
Page 631:
SYSTPV: 48OV Class :E Electrical 3i
Page 634 and 635:
For each model (BWR and PWR), the f
Page 636 and 637:
FUNCTIONS - Primary Coolant Invento
Page 638 and 639:
Chemical and Volume Control System
Page 640 and 641:
electric power is interrupted, the
Page 642:
." ,.,- 4160 VAC (vital) 125 VDC TA
Page 645 and 646:
does not have an extensive power hi
Page 647 and 648:
TABLE C2-5 PAlN FEEDWATER SYSTEM i
Page 650 and 651:
ESW pumps are on standby with cooli
Page 653 and 654:
features (ESF) transformer. Table C
Page 655 and 656:
FIGURE C2-7 DC Electric Distributio
Page 657 and 658:
FIGURE CZ-8 Coinponent Coolli~g h'a
Page 659 and 660:
. ESW'S~S~~~. The ESW system could
Page 661 and 662:
C3. BOILING WATER REACTOR (BWR) APP
Page 663 and 664:
I - -1- -- .
Page 665 and 666:
via the main steam safety/relief va
Page 667 and 668:
250 VDC FUNCTIONS TABLE C3-3 HIGH P
Page 669 and 670:
125 VDC 4160 VAC (vital) Condensate
Page 671 and 672:
41 hU VAC 125 VIK' TABLE C3-5 CORE
Page 673 and 674:
I*.',. -.- taw Residual Iledt Remov
Page 675 and 676:
eactor vessel by manually dumping s
Page 677 and 678:
Service Water System
Page 679 and 680:
cooling on an individual basis. Suc
Page 681 and 682:
Emergency Service Water System FUNC
Page 683 and 684:
FIGURE C3-7 DC Electric Distributio
Page 685 and 686:
Therefore, onl: valves accessible f
Page 687 and 688:
, : %..- ~ DC 1. Reactor Water Leve
Page 689 and 690:
APPENDIX D: COMPUTER CALCULATIONS F
Page 691 and 692:
69 F i yur c 1)- 1 : HEACI'OR MOIIE
Page 693:
680.0 660.0 640.0 620.0 600.0 JBO.0
Page 696 and 697:
- - - - - - - - - STATION BLACKOUT
Page 698 and 699:
TIHE (SECONDS) XI0 j - 7 PHESSUHI Z
Page 700 and 701:
. LMTAI: 050141 [ 2Zon.tt I -1. I .
Page 704:
'-. - - - . - - - -- . . . HEAT S i
Page 707 and 708:
APPENDIX E: INDUSTRY SUR'JEYS At th
Page 709 and 710:
2. In the cases of the oil refineri
Page 711 and 712:
Concept De~e~lopment and Cost Estim
Page 714 and 715:
- PAGE ' 4.5 Cost Estimates for Iso
Page 716 and 717:
!;cl~crn;~tic Arrangemcrnt of ESF h
Page 718 and 719:
descriptions or descriptions of ope
Page 720 and 721:
2. SUWlARY Cost estimates for const
Page 722 and 723:
3. CONCEPT DEVELOPFIENT .3.1' .HARD
Page 724 and 725:
..: +". .. . . : ,. \,.L . . , .: f
Page 726 and 727:
., %W ; : ;,' : .? vent system cons
Page 728 and 729:
2 ft 6 in. 3 ft\ \ - N SLOPE SLOPE
Page 730 and 731:
Tank Capacity, Gal. Tank Diameter,
Page 732 and 733:
7 ft 6 in.
Page 734 and 735:
auxiliary feedwater and refueling w
Page 739:
................ ................ -
Page 748 and 749:
I .,I I , , . ............. .),.I.
Page 750:
I i , .. ! 'It-
Page 758:
LLYtL GMDL PLUS 73 it
Page 763 and 764:
and roof are of reinforced concrete
Page 766 and 767:
tection cabinets installed in the s
Page 768 and 769:
ndependent. Two ha? f-size tanks we
Page 770 and 771:
BORON INJECTION TANK No. Required T
Page 772 and 773:
Design Pressure, PSIG Design Temper
Page 774 and 775:
Doalgn Pranouto, PSIC 150 Design Te
Page 776:
. Provides for isolation of fluid l
Page 780:
I-- 38.7~1 (127 ftj Figare 3-21. U
Page 784 and 785:
I ( N.C.* I I I 4-kV CLASS 1E EMERG
Page 786 and 787:
, Alignment of reactor coolant pump
Page 788 and 789:
Electrical Power The major electric
Page 790 and 791:
The cooling air inlet and discharge
Page 792 and 793:
Design Temperature, "F Material of
Page 794 and 795:
Design Pressure, PSIS Deslqn Tcnper
Page 796 and 797:
DIESEL GENET(ATOR - LVBE OIL STORAG
Page 798 and 799:
Table 3-5 1:~:s the elping concecti
Page 800 and 801:
Loop J lC.L.1 Loop 1 lC.L.I-*:..mal
Page 802 and 803:
ability to isolate it to prevent lo
Page 804 and 805:
The excess letdown line is a small
Page 806 and 807:
4.1 GENERAL I 4. COST ESTIf4ATES Th
Page 808 and 809:
4.2.2 , Hardening Option 2, Reinfor
Page 810 and 811:
xcavat ion and Backfill Mat, 3 feet
Page 812 and 813:
TABLE 4-5 STUDY ESTIMATE, NOVEMBER
Page 814 and 815:
ITEM OF WORK TABLE 4-7 STUDY ESTIMA
Page 816 and 817:
The approach to the estimate, there
Page 818 and 819:
Substructure Excavation and Backfi
Page 820 and 821:
TABLE 4-10 STUDY ESTIMATE, NOVEMBER
Page 823 and 824:
6L:ained. In tk,e case of rne RHi+
Page 825 and 826:
TECHNICAL MPlORANDUn EVALUATION OF
Page 827 and 828:
TECHNICAL MEMORANWn ABGQNNE NATIONA
Page 829 and 830:
4.1 Sources of Information .4.2 Air
Page 831 and 832:
polar Plot for a11 hudiur hndira Ac
Page 833 and 834:
Thir report providu a revieu and ev
Page 835 and 836:
extenrively rtudied, but other crar
Page 837 and 838:
; 6 . ..,~ spective, presmt' polici
Page 839 and 840:
8 narios. mechaniraa, ad credibilit
Page 841 and 842:
ased on aircraft and topographical
Page 843 and 844:
IAU Safmty Gui& ad include the dete
Page 845 and 846:
4.1 Sources of Information 4. AIRCR
Page 847 and 848:
General Aviation refera to the oper
Page 849 and 850:
18 accounted for 81 percent of all
Page 851 and 852:
Table 1. Critical Civil Aviation Ac
Page 853:
Fig. 1 Polar Plot for all Canadian
Page 856 and 857:
2 5 procedures a d directions, misj
Page 858 and 859:
2 1 thane rerult umarired belw for
Page 860 and 861:
These race# aaruw tha: a crash can
Page 862 and 863:
hble 6 Detailed Crash btes - Fatal
Page 864 and 865:
DISTANCE FROM LANDING OR TAKE -OFF
Page 866 and 867:
the calculatiod where desirable. Bo
Page 868 and 869:
i are equivalent to randm craah eve
Page 870 and 871:
T PATH Fig. 5. Crash Sites Orthonor
Page 872 and 873:
accidents froll 1962 to 1966, 26 fi
Page 874 and 875:
Uircellaneous 0.01 mf* 0.02 mi2 tn*
Page 876 and 877:
4 5 large ones within 75 oiler. His
Page 878 and 879:
4 7 giw aircraft crashing into the
Page 880 and 881:
0 emergency core cooling system (EC
Page 882 and 883:
zero: Paat .xh?ience h a ahown that
Page 884 and 885:
5 3 lw it to deprearurirs the PHtS
Page 886 and 887:
mgklw imposed upon the plant struct
Page 888 and 889:
the calculatioru were repeated with
Page 890:
strength). The reaction load for th
Page 894 and 895:
Fig. 12 Displacements-Time-~Iiutori
Page 896 and 897:
cross-sectional area of the strikin
Page 898 and 899:
LOADING AREA REINPORCEYE STILL E'LA
Page 900 and 901:
4 6 lo-' 2 4 6 10 t? 2j3 PERIOD t s
Page 902 and 903:
Fig. 18 Comparinon of Response spec
Page 904 and 905:
I Fig. 22 Response Spectra. Compari
Page 906 and 907:
the gener.~?vicinity of the crash s
Page 908 and 909:
77 such an even nvironaent will be
Page 910 and 911:
, .';,,>,~robabilit~ . . . _ of occ
Page 912 and 913:
and conclurio 81 0 1 Aviation aircr
Page 914 and 915:
itself a coditional probability, co
Page 916 and 917:
acceptrblY -11, and the risk evalua
Page 918:
then aviation zones concentrate tra
Page 921 and 922:
Scenarios - Plan: methodologies for
Page 923 and 924:
REFERENCES 1. U.S. Nuclear Regulato
Page 925 and 926:
Crarrro, U. and Lucenet, C., "Zvalu
Page 927 and 928:
96 Viti, C., Olivieri, X., and Trav
Page 929 and 930:
Offslte Hazards: Aircraft Crash Typ
Page 931 and 932:
Offaite Hazards: Aircraft Crash Spe
Page 933 and 934:
so11.1tion of the dynamic analysic
Page 935 and 936:
I 104 airport. Inpact forciw functi
Page 937 and 938:
Offaite Hazards: Aircraft Crash Typ
Page 939 and 940:
Offsite rcraft Crash diagram and co
Page 941 and 942:
hi tr a numbar of techniques which
Page 943 and 944:
aircraft fraac is examined and it w
Page 945 and 946:
113 idual probabilities that an air
Page 947 and 948:
'Ihir paper giver a rrm~ry of extre
Page 949 and 950:
111 Offrite Rarardr craft Crash -pa
Page 951 and 952:
Internal: E. S. Beckjord C. E. Till
Page 953 and 954:
ABSTRACT The purpose of this projec
Page 955 and 956:
, . 5.0 HUMAN RELIABILITY ANALYSIS
Page 957 and 958:
Given an carthquakc large enough to
Page 959 and 960:
Relay chatter was not treated at al
Page 961 and 962:
6.1 lntroductlon SECTION 6 SUhlhlAR
Page 963 and 964:
were found to be important). These
Page 965 and 966:
6.3 Plant-spccllic lnslghts for LaS
Page 967 and 968:
11) We believe that, on balance, th
Page 969 and 970:
conservative but we are not certain
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SUBJECT: COMMENTS ON NRC PROPOSED RULE ...

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