ML20137Z795
| ML20137Z795 | |
| Person / Time | |
|---|---|
| Site: | Byron, Braidwood, Clinton, LaSalle, 05000000, Marble Hill |
| Issue date: | 12/04/1985 |
| From: | Massin H COMMONWEALTH EDISON CO. |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML20137Z802 | List: |
| References | |
| 0955K, 955K, NUDOCS 8512110408 | |
| Download: ML20137Z795 (12) | |
Text
N Commonwealth Edison
- / One First National Plaza. Chicago. Ilknois
/ Address Reply to. Post Othce Box 767 v
j Chicago. Hhnois 60690 December 4, 1985 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, DC 20555
Subject:
LaSalle County Station Units 1 and 2 Removal of Unqualified Instrumentation From The DG Engine and Engine Skid NRC Docket Nos. 50-373 and 50-374 References (a): Unit 1 License (NPF-11) Condition 2.C.(21).(c)
(b): Unit 2 License (NPF-18) Condition 2.C.(12).(a)
Dear Mr. Denton:
Reference (a) required that prior to startup after the first refueling outage, controls and monitoring instrumentation be removed from the DG engine and engine skid, except instruments that are qualified for this location. Reference (b) contained a similar condition and, in addition, required Comonwealth Edison t.o submit an evaluation, that confirmed the design objective, for Staff approval. This letter and the attachments are in compliance with the Unit 2 license condition, but are applicable to all ESF DC's at LaSalle. The report summarizes our evaluation of the controls and monitoring instrumentation and describes the modifications that are needed to comply with the design objective.
Based on a siesmic and environmental qualification program conducted by Stewart and Stevenson and Southwest Research Institute, we have determined that all safety-related electrical devices and instrumentation, except for GE control switches, located on the diesel generator engines and engine skids are qualified for their location and that the non-safety-related devices will not fall in a manner that will degrade any safety-related equipment.
Each DG engine skid has two GE control switches, and modifications have been initiated to remove them from the skid by either deleting them from the system or relocating them to one of the local DC control panels. These modifications will be completed prior to startup after the first refueling outage on the respective units.
Attachments A and B summarize the results of this qualification program. The two tables list all of the electrical devices and instruments located on the five ESF DG engine skids at LaSalle, their safety classifi-cation, method of qualification, and the corrective action initiated for the unqualificated devices. Unless specifically noted, the device was qualified for 40 years to the requirements of IEEE 323-1974, 344-1975, and 387-1977, and this qualification included non-seismic vibration aging.
0 8512110400 0 00373 I I(
PDft ADOCK O PDR i
P
H. R. Denton December 4, 1985 The vibration aging tests simulated over 11,000 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> of diesel engine operation. Attachment C describes the vibration aging test procedure, and Attachment D describes how the vibration levels of an EMD 645 diesel engine, the type at LaSalle, were determined. Attachment E contains a typical test report for a skid-mounted device. All test reports are on file at the offices of our Architect-Engineer.
To ensure that the qualification of these devices is maintained, the devices have been added to the LaSalle Equipment Q-List.
If you have any questions concerning this matter, please contact this office.
One signed original and ten (10) copies of this letier and the attachments are enclosed for your use.
Very truly youer, W
H. L. Massin Nuclear Licensing Administrator im Attachments cc:
Dr. A. Bournia - NRR NRC Resident Inspector - LSCS 0955K
t Attachment A Pcge 1 of 5 f
Skid Mounted Components on Diesel Generators O, IA, and 2A Safet Qualification Class {
Method 2 Comments Item Description f
01 Fuel Prime Pump Motor
- IE Test and Seismic qual. and l
(Century 8-213514-01)
Analysis vibration aging done by test.
Rest of qual.
i 'e performed by analysis.
B4 DC Soakback Oil Pump Motor
B7 Oil Cire. Pump Motor
- IE Analysis Analysis includes a fatique evaluation on the long (Delco IT5727-SIA) term effects of exposure to normal engine vibration.
87A AC Soakback Oil Pump Motor
- IE Test and Seismic qual. and vibration (Delco 2J2224C1Y27)
Analysis aging done by test.
Rest of qual. performed by ~
analysis.
Item not installed, to be added per EMD MI 9644 lube oil mod.
G1 2600 KW Generator
- IE Analysis Analysis includes a fatique evaluation on the long (Ideal 293266N-268N) term effects of exposure to normal engine vibration.
G2 Exciter * (Ideal 293269N-271N)
IE Analysis Same as G1 G3 Generator speed sensor IE Test and Seismic qual. and vibration (Synchro SA-1540)
Analysis aging only H1 Immersion Heater
- NT Test Only structural integrity was checked.
(Chromalox 155-115937-141)
H2 Generator Space Heater
- NT Analysis Only structural integrity was checked.
(furnished with generator)
- Cat a control or monitoring instrument
Pcgo 2 of 5 Cttachment A Skid Mounted Components on Diesel Generators O, 1A, and 2A Safety Qualification Item Description Class I Method 2 Comments KS, K17 DC Motor Starter (for Bl&B4) 1E Test (GE CR106-SO-OO-DEA) o.
L1,L2 Air Start Solenoid Values IE Test (Salem 912-055)
L3 Governor * (Woodward 8520-288) 1E Test and Seismic qual. and vibration l
analysis aging done by test.
Rest of qual. performed by analysis.
M13 Tachometer (CE 50-103111FAFA1)
NT Test M14 Pyrometer - Exhaust Gas NT Test Only structural integrity was checked.
(Alnor FND-21)
RTD 1-6 Gen. Stator Temp. Sensors NT Analysis Only structural integrity was checked.
(furnished with generator) 3 Environmental qual. did not S50 Governor Control Switch IE Test include vibration aging.
SSA is to be deleted because another local gov.
control switch, SS, is located at the generator I
control panel (DGO2JB).
I l'
S6 Cranking Lockout Switch IE Test I
(SQ D 9012-ACW-21)
I S8 Engine Overspeed Switch IE Test (EMD 84224490F)
- Not a control or monitoring instrument
Attcchment A Pcg2 3 cf 5 Skid Mounted Components on Diesel Generators 0, IA, and 2A Safety Qualification Item Description Class I Method 2 Comments S9 tow Oil Pres. Shutdown Sw.
NIE Test (SQ D 9012-ACW-21)
.S10 tow Oil Pres. Alarm Sw.
NT Test (SQ D 9012-ACW-21)
S11 High Water Temp. Shutdown Sw.
NIE Test (SQ D 9025-BCW-32)
S12 High Water Temp. Alarm Sw.
NT Test (SQ D 9025-ACW-32)
S10 Low Oil Temp. Alarm Sw.
NT Test (EMD 8447100)
S16 High Fuel Filter Diff. Pres.
NT Test Only structural integri,ty was checked.
Alarm Sw. (SQ D 9012-AEW-25)
S17 High Oil Filter Diff. Pres.
NT Test Only structural integrity was checked.
Alarm Sw. (SQ D 9012-AEW-25) 3 Environmental qual. did not S193 Emergency Stop Pushbutton Sw.
IE Test include vibration aging.
(CE CR29400K2O3H)
S19A is to be deleted because another local emergency stop switch, S19, is located at the engine control panel
~
(DGO3J).
- Not a control or monitoring instrument
= _.
~-
6 l
Ottachment A Page 4 of 5 t
I Skid Mounted Components on Diesel Generators 0, IA, and 2A Safety Qualification Item Oescription Class 1 Method 2 Comments S2O High Crankcase Pres. Alarm Sw.
NT Test Only structural integrity (EMD 8362040) was checked.
- . S21 High Oil Temp. Alarm Sw.
NT Test (SQ O 9025-8CW-35)
S35 Immersion Heater Temp. Control NT Test Sw. (EMD 8447102)
I S42 Low Soakback Oil Pres. Alarm NT Test Only structural integrity l
Sw. (EMO 8341873) was checked. Item not i
installed, to be added per EMD MI 9644 lube oil mod.)
i S43 Low Circ. Oil Pres. Alarm NT Test Only structural integrity Sw. (EMD 8342487) was checked. Item not'.
installed, to be added per r
i SSI Pyrometer Selector Sw.
NT Test Only structural integrity l
(for M14) (Daven Spec. 12070) was checked.
I TC 1-20 Exhaust Gas Thermocouple NT Test Only structural inegrity (Alnor 1118-M) was checked.
j
- Not a control or monitoring instrument E
l T
l t
=
Attachment A P093 5 of 5 Skid Mounted Components on Diesel Generators 0, IA, and 2A Safet{
Qualification 3
Class Method 2 Comments Item Description Notos:
1.
Safety Classifications 1E:
Safety Related - item performs a safety function NIE:
Safety Related - item does not perform a safety function but its failure could adversely affect DG operation.
Non-Safety Related - failure of item will not affect DG operation.
NT:
2.
Except for items SSA and S19A, the testing was performed by SWRI, and any analysis was performed by S&L.
3.
The qualification of item SSA and S19A was based on existing test reports from the equipment manufacturer or other testing facilities.
l Attachnent B Pcg3 1 cf 5 l
Skid Mounted Components on Diesel Generators IB and 2B i
Safety Qualification Item Description Classl Method 2 Comments 81 Fuel Prime Pump Motor
- IE Test and Seismic qual. and (Century 8-213880-02 for DG-1B Analysis vibration aging done by and Delco C992 for DG-28) test.
Rest of qual.
l o.
performed by analysis.
B4 DC Soakback Oil Pump Motor
B7 Oil Circ. Pump Motor
- IE Analysis Analysis includes a fatigue (Delco IT5727-SIA) evaluation on the long term effects of exposure to normal engine vibration.
87A AC Soakback Oil Pump Motor
- IE Test and Seismic qual. and vibration (Delco 232224C1Y27)
Analysis aging done by test.
_ Rest of qual. performed by.
analysis.
Item not installed, to be added per EMD MI 9644 lube oil mod.
G1 2600 KW Generator
- IE Analysis Analysis includes a (Ideal 289322N) fatigue evaluation on the long term effects of exposure to normal engine vibration.
G2 Exciter * (Ideal 289324N) 1E Analysis Same as G1 G3 Generator Speed Sensor IE Test and Seismic qual, and vibration (Synchro SA-1540)
Analysis aging only.
H1 Immersion Heater
- NT Test Only structural integrity (Wiegand NWH6X47) was checked.
H2 Generator Space Heater
- NT Analysis Only structural integrity (furnished with generator) was checked.
KS, K17 DC Motor Starter (for Bl&B4) 1E Test (GE CR106-SO-26-DEA)
- Not a control or monitoring instrument
l Attachment B Pcga 2 of 5 Skid Mounted Components on Diesel Generators IB and 28 Safet Qualification Class {
Method 2 Comments Item Description K2O AC Starter Relay (for HI)
IE Test Qualified for 13 years l
only.
Includes associated (GE CR207-DI-02-NCA) 480 UAC circuit breaker, CB2.
K24, K24A AC Motor Starter (for 87 &
IE Test Qualified for 13 years only.
Includes associated B7A) (GE CR207-B1-02-FCA) 480 UAC circuit breakers, l
CB3 and CB3A.
K24A not installed, to be added per EMD MI 9644 lube oil mod.
L1, L2 Air Stract Solenoid Values IE Test (Salem 912-054)
L3 Governor * (Woodward 8520-311) 1E Test and Seismic qual. and vibration Analysis aging done by test.
Re'st of qual. performed by analysis.
M13 Tachometer (GE 50-2503OOFAFA1)
NT Test M14 Pyrometer (for exhaust gas)
NT Test Only structural integrity was checked.
(Alnor FND-31)
RTD 1-6 Gen. Stator Temp. Sensors NT Analysis Only structural integrity was checked.
(furnished with gen)
- Not a control or monitoring instrument l
l I
l
Attcchment B Pcg2 3 cf 5 Skid Mounted Compcnents on Diesel Generators 18 and 28 Safet Qualification Item Description Class Method 2 Comments S6 Cranking Lockout Switch IE Test (SQ D 9012-ACH-25)
'. C8 Engine Overspeed switch IE Test (EMD 8422449)
S9 Low Oil Pres. Shutdown Sw.
NIE Test (SQ D 9012-ACW-1)
S10 Low Oil Pres. Alarm Sw.
NT Test (SQ D 9012-ACW-1)
S11 High Water Temp. Shutdown NIE Test Sw. (EMD 8447099)
S12 High Water Temp. Alarm NT Test Only structural integrity was checked.
Sw. (EMD 8449678)
S13,S13A Low Air Pres. Alarm Sw.
NT Test (SQ D 9012-ACW-2)
SIG Low Oil Temp. Alarm Sw.
NT Test (EMD 8369218)
S16 Low Water Level Alarm Sw.
NT Test (Murphy El-150K1)
- Not a control or monitoring instrument
Attechment B Pcg3 4 cf 5 Skid Mounted Components on Diesel Generators IB and 28 Safet Qualification Class {
Method 2 Comments Item Description 3
Environmental qual. did not S18 Pushbutton Start Sw. for B1 NIE Test (GE CR29400A202D) include vibration aging.
To be relocated to engine o.
control panel 1(2)E22-P3018.
S2O High Crankcase Pres. Alarm Sw.
NT Test Only structural integrity l
(Static-O 12N-N66) was checked.
S21 High Oil Temp. Alarm Sw.
NT Test (SQ D 9025-BCW-35)
S22 Pushbutton Start Sw. for 84 NIE Test 3 Environmental qual. did not (GE CR2940UA2028) include vibration aging.
To be deleted since it is l
jumpered in the circuit.
I S23 Low Service Water Pres. Alarm NT Test Sw. (SQ D 9012-ACW-2)
S230 Low Cooling Water Pres. Alarm NT Test Sw. (SQ D 9012-ACW-5)
- Not a control or monitoring instrument
,~
l l
i l
Ottechment B Pcgo 5 cf 5 Skid Mounted Components on Diesel Generators 18 and 2B l
Safety Qualification I
Item Description Class i Method 2 Comments S35 Immersion Heater Temp. Control NT Test Sw. (EMD 8447102) l o, S41 Low Water Temp. Alarm Sw.
NT Test (SQ D 9025-BCW-43)
S42 Low Soakback Oil Pres. Alarm NT Test Only structural integrity Sw. (EMD 8341873) was checked.
Item not installed, to be added per EMD MI 9644 lube oil mod.
S43, S44 Low Fuel Oil Pres. Alarm Sw.
NT Test (SQ D 9012-ACW-5)
S45 Low Circ. Oil Pres. Alarm Sw.
NT Test Only structural integrity (EMD 8342487) was checked. Item not installed, to be added per EMD MI 9644 lube oil mod.
TCl-20 Exhaust Gas Thermocouple NT Test (Alnor 1118-M)
- Not a control or monitoring instrument Notos:
1.
Safety Classifications
~
IE:
Safety Related - item performs a safety function NIE:
Safety Related - item does not perform a safety function but its failure could adversely affect DG operation.
NT:
Non-Safety Related - failure of item will not affect DG operation.
2.
Except for items S18 and S22, the testing was performed by SWRI, and any analysis was performed by S&L.
3.
The qualification of items S18 and S22 was based on existing test reports from the equipment manufacturer or other testing facilities.
C886L*-11