ML18082A752
| ML18082A752 | |
| Person / Time | |
|---|---|
| Site: | Salem  |
| Issue date: | 07/02/1980 |
| From: | Schneider F Public Service Enterprise Group |
| To: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| IEB-80-11, NUDOCS 8007210552 | |
| Download: ML18082A752 (11) | |
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Frederick W. Schneider Vice President Public Service Electric and Gas Company 80 Park Place Newark, N.J. 07101 201/430-7373 Production July 2, 1980 Mr. Boyce H. Grier, Director US Nuclear Regulatory Commission Off ice of Inspection and Enforcement Region 1 631 Park Avenue King of Prussia, Pennsylvania 19406
Dear Mr. Grier:
NRC IE BULLETIN NO. 80-11 MASONRY WALL DESIGN NO. l UNIT SALEM GENERATING STATION In response to NRC Bulletin No. 80-11, Items 1, 2a, and 3, we submit the following:
Item 1 We have identified the masonry walls used in the construction of Unit No. 1, Salem Generating Station and the piping and/or equipment in proximity to them.
This information is presented in Attachment No. 1 and is listed by floor elevation.
The only Seismic 1 Building at the Salem Plant which has masonry walls is the Auxiliary Building.
None of these walls are used to support seismic category 1 piping, nor is any wall required to resist missile impact, jet impingement, pipe whip, or pressurization loads.
These masonry walls are not load bearing structural walls.
They function primarily as partition walls or as removable shielding plugs in poured reinforced concrete walls, or are used as walls around the battery room to contain corrosive fumes.
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Mr. Grier 2 -
7~02-80 All partition and battery room walls are filled solid with mortar and are heavily reinforced in both directions, as well as being dowelled or anchored into the supporting concrete floor and adjacent walls.
The identification of the masonry walls and piping and/or equipment in proximity to them was achieved by diligent search of structural, architectural, mechanical, electrical, and controls design drawings.
The results were then confirmed by a field walk through all areas accessible while the unit was operating.
Item 2a The results of the investigation for Item 1 of this Bulletin have dis-closed only three areas which appeared to warrant a detailed examina-tion.
These are:
- 1) partition wall on the center line of the corridor on elevation 100'-0, which separates Unit No. 1 from Unit No. 2;
- 2) partition wall on elevation 122'-0 separating the maintenance room, and janitor's closet from the RMS, process group and reactor protec-tion cabinets; and 3) the walls around the battery room on elevation 64'-0.
These walls, by virtue of their height and proximity to other equipment, will be reevaluated.
'The result will be included in our final (180-day) report.
This report will also include an evaluation of some minor masonry shielding walls.
Item 3 We have reanalyzed these three walls in order to assure ourselves that the operability of any safety-related system is not in jeopardy.
We have performed a pseudo-dynamic analysis tQ determine the amplified response of the block wall under earthquake (design basis) loading.
To obtain a conservative response, we have varied the material proper-ties of the walls to obtain the most critical frequency of the wall strip under analysis, and used the responses of floors above the walls as the loading input.
The out of plane flexural stress, the end shear, and the dowel bearing stresses have been checked and found to have a sufficient'factor of safety.
We have concluded that this conservative, although simplified type of analysis, shows that the walls have an adequate factor of safety, and no safety-related system or equipment is in jeopardy.
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Mr. Grier 3 -
7-02-80 We feel confident that during the 180-day period, a more detailed reevaluation of these reinforced masonry walls will confirm our sim-plified analysis and that a confirmatory wall test program will not be required.
Sincerely,
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STATE OF NEW JERSEY)
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SS:
COUNTY OF ESSEX
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FREDERICK W. SCHNEIDER, being duly sworn according to law deposes and says:
I am a Vice President of Public Service Electric and Gas Company, and as such, I find the matters set forth in our response dated July 2, 1980 to IE Bulletin No. 80-11 titled "Masonry Wall Design" are true to the best of my knowledge, information, and belief.
Subscribed and sworn to before me
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this J_,i.....c day of '-... }LJ.:.,vi~
, 1980.
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(7'1-CL/\\-c{ {L. /L~
Notary Public of New Jersey My Commission expires on 1.:).P /
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STATE OF NEW JERSEY)
)
SS:
COUNTY OF ESSEX
)
FREDERICK W. SCHNEIDER, being duly sworn according to law deposes and says:
I am a Vice President of Public Service Electric and Gas Company, and as such, I find the matters set forth in our response dated July 2~ 1980 to IE Bulletin No. 80-11 titled "Masonry Wall Design" are true to the best of my knowledge, information, and belief.
Subscribed and sworn to before me
')
this,31LAt day of_~
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1
_' *-<~' 1980.
Notary Public of New Jersey My Commission expires on I J.. -,3 D - P /
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ATTACHMENT NO. 1 IDENTIFICATION OF EQUIPMENT AND SYSTEUS IN PROXIMITY OF MASOIBY WALLS AT ELEVS. SL '-0,
100' -0" AND 122' -0" O:' TE:2 AUXILIA:2Y B 1_':i:LD :r;-:;
SALEK GENERATING STATIGR UNIT NO. 1
Electrical Systems in Proximity to Corridor Partition Wall at Floor El. 100'-0 11 1 -
Cable Tray #lA201 channel "A" vital and channel "H" non vital at El. 117'-0".
2 -
Cable Tray #1A203 channel "A" vital and channel "H" non vital at El *. 115'6" column line 14 between FF & HH 3 - #lGl 460-230V Motor Control Center Channel "G" non vital.
4 - Term. Box #JT-26 with fire alarm pull station Chan. "F" non~
vital -
Column Line 13.8 between GG & HH.
C-900 E-130 E-300 MAOO M-400 M-600
- M-910 M-921
- M-922 M-940 N-100 N-210 N-500 N-600 R-200 R-300 W-200 Systems Involved Radiation Monitoring System 4KV System Diesel Generators Heat Tracing Plant Lighting Service Water System
- Aux. Bldg. Ventilation Control & Relay Room Air Conditioning Fuel Hand. Bldg. Ventilation Containment Ventilation Chemical &
Volume Cont.rel Component Cooling Waste Disposal Safety Injection Reactor Coolant System In-Core Inst!*umentation Demineraliz~d Water System Control Systems in Proximity to Masonry Wall at Elev. 122' -C
1 - Radiation monitoring cabinets channels A-B-C-D vital and E-F-~-F.
non vital.
2 -
Process Group #1 all vital channels and all non. vital channels.
3 - Reactor protection ca~inets channel I (Vital "A" & N.V. "H")
4 - Control Room Lightine Panel #CR-1 with emergency circuits 5 - Terminal Box #JX-32 5 C hann1~1 "F" non vital (Plant Sec.)
6 - Temperature Device #TD-754~ Channel "F non~ vital -
column line 12.3 between BB & cc.
- l.
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..,*. *':*'... ' *::*;:._."*' >"'.. *>:::*50.r~1. AUXILIARY.BUILDING (Continued)
.C-900 G-210 M-400 N-100 R-100 R-200
- systems Involved Radiation Monitoring System Main Steam Plant LightinE:
- Chemical & Volume Control Reactor Control & Protection Reactor Coolant System
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Control Systems in Proximity to Masonry Walls at Floor Ei. 64 '-0
Battery Room 1 - #1C-125V DC battery channel "C vital at col. line 13.2 between EE & FF.
2 - #1FL-208/120V. Lighting Bus channel "F" non vital at eel.
line 12.8 between EE & FF 3 - #1C-4160V Bus, channel C" vital at Col's 12.8-13.2 & DD-!::::
E-130 E-220 M-400 M-600 N-100 N-210 N-60C N-620 Systems Involved 4Y.V Systen:.
125V DC System Plant Lighting Service Water System Chemical & Volume Control Comp~nent Coolin~
Safety Injection Contain~ent spray
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MECHANICAL Attachment No. 1 -
Systems and/or Equipment in Proximity to Masonry Walls Auxiliary Bldg. - El. 84'-0" 1 -
Shield Wall - Valve Extension handles protrudine thru concrete wall o~ filter rooms.
2 -
Shield Wall -
Near motors for safety injection pumps.
Elevation 100'-0" 1 -
Shield Wall -
Radwaste drumming and bailinE area 2 - Shield Wall - Demineralized Water Line (l" dia.)
3 - Corridor Partition Wall -
4" dia. Fire Protection Line Elevation 122'-0
1 - Partition Wall -
HVAC Plenum for filter removal.
1 - Corridor Partition Wall -
HVAC Duct - Control Room.
Elev. 64' -0
Battery Room -
HVAC Duct - Vital bus room.
Battery Room -
1/2~ dia. C02 Fire Protection Line 3.
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CONTROL SYSTEMS IN PROXIMITY TO CORRIDOR MASONRY WALL AUX. BLDG. - EL. lOO 1 -O" NO. l UNIT -
SAMPLING SYSTEM -
SAMPLING TUBING
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'!'RAY NO.
LINE NO.
1355G-N, 1356G-N 1357G-N, 1799G-N, 1491E-N (No. 1 Unit)
DESTINATION T-S84N
- T-660N No. l Unit T-798N 1491E-N, l233H-N, 1234H-N, 1235H-N 1355G-N, 1356G-N, l357G-N, l799G-N To Sample Sink To Sample Sink To Sample Sink
- Tray passes thru block wall at El. 110'-Sl:i" between Columns G-G & H-H.
No supports used.
T-1063N
- T-1061N 3129G-N (Unit No.l & 2) 3129G-N, 6264G-N 6265G-N, (Units l
& 2)
To Dimethlamine Gas Bottle From Gas Bottles to Analysis Chem. Lab.
- Tray passes thru block wall at El. 107' 7" between Columns F-F & G-G.
No supports used.
CONTROL SYSTEMS IN PROXIMITY TO MASONRY WALLS NO. 1 UNIT AUX. BLDG. EL. 64 1-0" CONC. BLOCK WALL FOR NO. 1C-125V D.C. BATT. RM.
TRAY T-626C W/Lines 2326HC & 2327HC*
Tray supported from cone. columns.
Line 2326HC TA-7534 )
Line 23 27HC TA-7533 )
Aux. Bldg. SW Gear Rm. Vent. Air Temp.
AUXILIARY BLDG. EL. 122'-0" -
COLUMNS 11. 8-12. 8, BB CONTROL SYSTEM IN PROXIMITY OF MASONRY WALL Instr. Line in Control Tray, Line No. 2850A-N a)
From TA-8306Z to Damper 1CAA22 used for Control Area Ventilation Maintenance Room.
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CONTROL SYSTEMS IN. PROXIMITY TO MASONRY WAL£*:*>..,:.._-...
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AUXILIARY BLDG* EL. 122'-0" -
COLUMNS 11.8-12.8, BB
- 1)
Radiation Monitoring Sys. Cabinets fllO, 109, 75, 113, 114, 120 & 136.
- 2)
Radiation Monitor Rack f 137 & Process Group 1 Cabinets
- 21, 22, 93, 128, 29 & 101.
- 3)
(2) Future Cabinets & Reactor Protection Channel 1 Cabinets tl, 2, 3, 4 & 5.
- 4)
Slop Sink.
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