IR 05000387/1987010
| ML18040B183 | |
| Person / Time | |
|---|---|
| Site: | Susquehanna  |
| Issue date: | 05/18/1987 |
| From: | Anderson C, Paulitz F, Pullani S NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | |
| Shared Package | |
| ML18040A839 | List: |
| References | |
| 50-387-87-10, 50-388-87-10, NUDOCS 8706090248 | |
| Download: ML18040B183 (32) | |
Text
Report No.
50-387/87-10 50-388/87-10 Docket No.
50-387 50-388 U.S.
NUCLEAR REGULATORY COMMISSION
REGION I
License No.
NPF-14 NPF-22 Pr i ority Category C
Licensee:
Pens lvania Power 8 Li ht Com an 2 North Ninth Street Allentown Pens lvania 18101 Facility Name:
Susquehanna Steam Electric Station, Units 1 and
Inspection At:
Allentown, Pennslyvania Inspection Conducted:
April 20-24, 1987 Inspectors:
S.
V. Pull ni, Lead Reactor Engineer s //z/E7 date F.
P. Paulitz, Reactor Engineer date I
Approved by:
C. J. Anderson, Chief, Plant Systems Section
~ />>7 date Ins ection Summar
Inspection on April 20-24, 1987 (Combined Inspection Reports 50-387/87-10 and 50-388/87-10 Areas Ins ected:
.Special announced inspection of the licensee's
CFR 50.59 safety evaluations for the facility change involving the addition of the fifth diesel generator.
Results:
No violations or deviations were identified.
8706090248 870528 PDR
- DOCK 05000387 G
TABLE OF CONTENTS 1.
Introduction
~
Details of the Facility Change 3.
Review Criteria and Requirements 4.
Technical Evaluation and Discussion
~Pa e
4. 1 Review of Licensee's Safety Evaluations 4.2 Review of Important Design Features 4.2.1 4.2.2 4.2.3 4.2.4 4.2.5 4.2 '
4.2.7 4.2.8 4.2.9 4.2.10 4.2.11 5.
Conclusion 6.
Exit Interview Attachments Codes, Standards and Regulations Seismic and Quality Classifications Diesel Generator Load Capacity, Voltage and Frequency Diesel Generator Reliability Diesel Generator Protective Trip Circuit Bypass Diesel Generator Power Leads Diesel Generator Auxiliary and Support Systems.
Diesel Generator Periodic Testing Electrical System and Component Design Parameters Redundancy and Independence Diesel Generator Alignment Verification
9
10
12
13
1.
2.
3.
5.
Station Single Line Diagrams (with Existing 4 Diesel Configurations)
Single Line Diagram (Showing Addition of Fifth Diesel Generator)
References Documents Reviewed Persons Contacted
DETAILS Introduction The Susquehanna Steam Electric Station (SSES) 1/nits I and 2, are provided with four diesel generators that are shared between the two units.
The Technical Specifications permit a diesel generator to be inoperable for 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />.
After 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />, if the diesel is not returned to service, a
two unit shutdown is required.
A fifth diesel generator is being added as a replacement and wi 11 have the capability of supplying the emergency loading for any one of the four existing diesel generators.
The main purpose of the fifth diesel generator is to allow maintenance to be performed on any one of the four existing diesel generators without necessitating any unit shutdown.
The licensee is making the above change in the facility, in accordance with the provisions of 10 CFR 50.59, without prior commission approval but after performing a written safety evaluation which provides the bases for the determination that this change does not involve an unreviewed safety question.
The purpose of this inspection is to review the licensee's 50.59 evaluation and to ascertain that adequate bases exist to conclude that the change does not involve an unreviewed safety question.
Details of the Facilit Chan e
The existing 4 diesel configuration and the facility change for the fifth diesel generator (Diesel Generator E) are schematically shown in Attachments 1 and 2.
The fifth diesel generator facility, including the components contained therein, is designed as a nuclear safety related, Seismic Category I, Class 1E facility that will be used to provide emergency power when an existing diesel generator is out of service.
The fifth diesel generator has a rated capacity of 5,000 kW and is capable of being substituted for any one of the existing Diesel Generators without violating the independency of the redundant safety related load groups.
It is capable of supplying the emergency loads associated with any of the existing diesel generators.
The fifth diesel generator functions the same as the existing diesel generators.
The substitution of the fifth diesel generator for any existing diesel generator is accomplished by manually transferring control of the fifth diesel generator to the control room using the existing cables from the substituted diesel generator and manually transferring the fifth diesel generator 4. 16 KV leads to the high voltage compartment of the substituted diesel generato All the cables transferred to the fifth diesel generator are routed through two normally opened switching points.
One point is located in each of the existing diesel generator buildings and a corresponding switching point for each of the existing four diesel generators is in the fifth diesel generator building.
This is required to maintain the in-dependency of redundant safety related load groups.
The transfer of control of the fifth diesel generator to the main control room is achieved by manually switching the existing control room instrumentation and control cables from the existing diesel generator to the fifth diesel generator.
Four transfer panels OC512A, OC512B, OC512C and OC512D, equipped with 20 switches and located in the existing diesel generator building are used to perform the switching.
Correspondingly, four duplicate transfer panels OC512E-A, OC512E-B, OC512E-C and OC512E-D, located in the fifth diesel generator'building are also used to perform this switching.
This provides two isolation points for the transferred cables.
Proper alignment of the manual control switches of the substitute diesel generator and the fifth diesel generator transfer panels and 4. 16 kV switchgear is required for the substitution.
Local indication as well as Control Room indication is provided for this alignment.
3.
Review Criteria and Re uirements The requirements sn
CFR 50.59 for performing the safety evaluation and for the determination that the facility change does not involve an unreviewed safety question were used as the primary review criteria.
Further, the design review criteria for stand by power supplies in NUREG-0800, Standard Review Plan, Revision 2, July 1981 edition, Section 8-3-1, AC Power Systems (Onsite),
were used to verify that the design of the fifth diesel generator meets the related NRC requirements and licensee commitments.
The sampling basis used for the above verification focussed on some of the important aspect. of the design.
4.
Technical Evaluation and Discussion 4. 1 Review of Licensee's Safet Evaluations The objectives of this review were to ascertain that the licensee's safety evaluations (SEs) associated with this facility change was technically adequate and that sufficient bases exist to conclude that the change does not involve an unreviewed safety question as required by 10 CFR 50.5 A proposed change, test, or experiment shall be deemed to involve an unreviewed safety question (i) if the probability of occurrence of the consequences of an accident or malfunction of equipment important to safety previously evaluated in the safety analysis report may be increased; or (ii) if a possibility for an accident or malfunction of a different type than any evaluated previously in the safety analysis report may be created; or (iii) if the margin of safety as defined in the basis.for any technical specification is reduced.
The licensee's bases to satisfy these three criteria were reviewed for each of the associated SE.
The licensee is implementing the fifth diesel generator addition by means of approximately 35 design change packages (DCPs) listed in Section 2 of Attachment 4 of this report.
The inspectors reviewed the associated safety evaluations for these DCPs (see listing in
'ection 3 of Attachment 4).
Further, the DCPs were reviewed in general to verify that the design details contained therein support the conclusions in the SEs
~
Other relevant supporting documents such as design drawings and calculations were also reviewed to ascertain whether adequate bases exist to conclude that the fifth diesel generator addition does not involve an unreviewed safety question.
Attachment 4 is a listing of the documents reviewed during the inspection.
The licensee's SEs indicate that there is no unreviewqd safety question associated with the fifth diesel generator addition.
Based on the inspectors review of the Licensee's SEs and the supporting documents discussed above, it is concluded that adequate basis exist for the licensee's determination that no unreviewed safety question is involved.
Our review of important design features discussed below further support'ur conclusion.
4.2 Review of Im ortant Desi n Features The design of the existing class IE power system is described in the Final Safety Analysis Report (FSAR) Section 8.3.
This system includes four standby power supplies (diesel generators).
The class 1E power system was previously reviewed and approved by the NRC, Nuclear Reactor Regulation (NRR) staff prior to the issuance of the Operating License.
This approval is documentated in Section 8.3 of the NRC Safety Evaluation Report (SER)
and its supplements.
With respect to the original design, the NRC staff concluded that the class lE power system meets the NRC requirements which includes specific industry standards.
The purpose of this review was to ascertain whether the staff's original conclusions are still valid after the addition of the fifth diesel generator.
This review, conducted on a sampling basis, focussed on some of the important design features as discussed belo Codes Standards and Re ulations The codes, standards and regulations (CSR) applicable to the design, procurement, installation, operation, surveillance and maintenance of the fifth diesel generator facility are generally those in effect on September 22, 1983.
A list of the applicable codes, standard and regulations applicable to the fifth diesel generator is contained in the facility Design Description Report (DDR).
This report was submitted to the NRC by letter dated Parch 8,
1986.
During this
CFR 50.59 review, the NRC Region I (RI)
Staff compared the codes, standards and regulations listed in the DDR against the listing in Section 8 of the FSAR.
Each of the applicable Codes, standards and regulations listed in the FSAR were also listed in the DDR.
Where the CSR were revised the latest revision was listed in the ODR.
The licensee confirmed that the design requirements in the latest revisions of the CSR were equal to or exceed those in the FSAR.
The licensee has not completed but is in the process of preparing a revision to the FSAR to reflect the addition of the fifth diesel generator facility.
However, the licensee has confirmed that the commitment to the CSR listed in the ODR will also be committed to in the revised FSAR.
Based on the above it is concluded that this aspect of the design is acceptable.
Seismic and ualit Classifications The fifth diesel generator E facility including the structure, systems, and components is designed as nuclear safety related, seismic category I and IEEE Class lE.
The Inspectors reviewed the Design Description Report and the associated Design Change Packages (DCPs) to ascertain whether the purchase and installation drawing and speci-fications reflect these classifications and the requirements of 10 CFR 50 Appendix B.
The DCPs reviewed are listed in Section 2 of Attachment 4 of this report.
Based on the inspectors review it is concluded that the documents conform to the above classifications.
The licensee identified the following deficiencies which relate to the seismic design:
~
Hilti Kwik and Super Kwik bolts torque and ultimate tensile
'strength values were less than published data.
This published data was used in design calculation T. J.
Cope, Cable tray manufacture deficiencies and inadequate seismic qualification.
~
Peabody and Wind designed safety-related heating and ventilation system (HVAC), plenum, ductwork and duct supports, were not expected to withstand the effects of a safe shutdown earthquake or operating basis earthquake.
The following is. a summary of corrective action taken by the licensee concerning the above deficiencies.
The licensee has completed a test program for the Hilti Kwik and Super Kwik bolts.
This program was conducted by United States Testing Co. Inc. in conjunction with Gibbs and Hill (for technical specification for concrete construction and drilled in achors)
and Dravo Constructors, Inc. (for concrete slab and Hilti kwi k bolt test guidelines and qualification program).
This test is documented in Report No. Hilti-1, Rev 1, dated July 13, 1986.
Reconciliation using reduced tensile strength values has been completed for the bolts which required rework.
Non-conformance reports (NCRs)
have been issued.
The licensee has stated that the correcting action has been completed.
Cable trays had been inspected and NCRs issued to control the corrective action.
A seismic test program has been conducted by Franklin Research Center (FRC) for the licensee.
The result of this test is documented in FRC Report F-6129-001 Static Testing of Cable Tray Assemblies, dated March 6, 1986.
The Peabody and Wind seismic design deficiencies were reported to the NRC on April 15, 1987 by the licensee.
A letter providing this information pursuant to
CFR 21 had not been sent at the time of this report.
However, a
draft letter was reviewed by the staff.
The licensee's proposed corrective action is to walkdown the HVAC ducting, plenum, supports and support plates to establish that proper as-built configurations will be used to determine the load in each support.
Reconciliation will be made and, where necessary, modifications will be made.
The licensee has stated that the corrective actions will be completed prior to declaring the facility operabl Diesel Generator Load Ca acit Volta e and Fre uenc The existing four diesel generators A, B, C and D are rated at 4, 160 volts, 4000 kilowatts for continuous operating (8,000 hours0 days <br />0 hours <br />0 weeks <br />0 months <br />)
and 4,,700 kilowatts for 2,000 hour0 days <br />0 hours <br />0 weeks <br />0 months <br /> operation.
The capacity of these diesel generators (assuming one diesel generator fails) is sufficient to power the engineered safety feature (ESF) loads of one unit Loss of Coolant Accident condition and the safe shut down of the other unit simultaneously.
The licensee's analysis, preoperational and status test program, and Surveillance test program have confirmed the above capacity requirements.
Also confirmed were the acceptable transient and steady state voltage and frequency during the loading sequence.
The inspectors reviewed the purchase specification for the fifth diesel generator to determine if the commitments in the FSAR and the requirement in the Technical Specification for the existing four diesel generators were also specified for the fifth diesel generator.
As a result of this review, the only differences identified were that the fifth diesel generator is rated at 5,000 kilowatts for continuous operation and 5,500 kilowatts for 2,000 hour0 days <br />0 hours <br />0 weeks <br />0 months <br /> operation.
Considering the house load of 2.25 kilowatts associated with the fifth diesel generator auxiliaries and the facility loads of the new diesel generator building the net continuous output is 4775 kilowatts.
Based on the inspectors review, it is concluded that the fifth diesel generator load capacity, voltage and frequency commitments meet the requirements and commitments for the existing diesel generators.
Diesel Generator Reliabilit The licensee has committed to IEEE standard 387-1972 in the FSAR.
This standard provides the criteria for Diesel Generator Units Applied as Standby Power Supplies for Nuclear Power Generating Stations.
The DDP and purchase specifications M-1082 for the fifth diesel generator E,
list IEEE 387-1977 as a reference standard.
Both versions of IEEE-387 specify a qualification program to provide verification that the design criteria will be met.
The licensee previously qualified its existing four diesel generators.
The IEEE standard permits qualification of a similar machine.based on a similar analysis.
However, the fifth diesel generator is not sufficiently similar
to the existing four units.
The fifth diesel generator is a Cooper Bessemer model KSV-20-T (20 cylinder) with a 5,000 kilowatt continuous rating.
The existing four diesel generators are Cooper Bessemer Model KSV-IG-T (16 cylinder)
with a 4,000 kilowatt continuous rating.
Morrison-Knudsen, who supplied the fifth diesel generator, prepared a 300 start test generic qualification study based on a similarity of the fifth diesel to units at Palo Verde and Braidwood Nuclear Plants in accordance with the qualification requirements of IEEE 387-1977.
This is documented in a report dated Apri 1 23, 1984, with revision 1 dated June 1,
1984.
This report was submitted to the NRC (NRR) staff by letter, dated September 7,
1984, to justify that the 300 start test performed on similar existing diesel generators was applicable to the fifth diesel generator being installed at Susquehanna Steam Electric Station.
The NRC (NRR) staff reviewed the above report and found the justification acceptable.
This was documented in a letter to the licensee dated November 8, 1984 with an enclosed safety evaluation.
Furthermore, the licensee conducted a preoperational test on February 13, 1987 in accordance with procedure TP-02-013, Revision 1.
The test included the following conditions:
Load Duration
1 50%
75%
100%
1107 (5,500 Kw)
110% for 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> then 100%
69 Consecutive starts Loss of 110% load response hour hour hour hour hour for 22 hours2.546296e-4 days <br />0.00611 hours <br />3.637566e-5 weeks <br />8.371e-6 months <br /> This test program, conducted by the licensee, was in accordance with Regulatory Guide 1. 108, The inspectors reviewed the above test results including the test exception resolutions and found them acceptable.
There were no indicated failures during the 69 consecutive starts.
The voltage, frequency and speed response during the 110%
load rejection were within the design criteri The licensee committed in the above September 7,
1984 letter to the NRC to perform a certain site test to satisfy the Morrison-Knudsen factory test requirements.
This test was conducted on February 24, 1987 in accordance with procedure TP-024-071 revision 1.
The test included the following conditions:
Nine starts initiated from a standby condition with an applied load of 50% of rated (2500 KW),
One start initiated from equilibrium conditions with an applied load of 50K of rated.
After stabilizing engine conditions, design loads (in the form of dummy loads) would be sequenced onto the unit.
Once Stabilized, loads would be shed in such a manner as to verify the largest load reject criteria and governor and voltage regulation criteria.
The inspectors reviewed the above test results including the test exceptions and resolutions and found them acceptable.
It is concluded that the combination of the 300 start test generic qualification study and the 79 site tests has satisfied the recommendations of IEEE 387-1977, Diesel Generator Units Applied as Standby Power Supplies for Nuclear Power Generations Stations as endorsed by Regulatory Guide 1.9, for qualifying the fifth diesel generator unit and is, therefore, acceptable.
Diesel Generator Protective Tri Circuit B ass The licensee has provided a design of the existing four diesel generators to bypass all trips following an automatic start except the following:
~
Engine Overspeed
~
Generator Differential
~
Low Engine Lube Oil Pressure The low engine lube oil pressure trip is designed as a
one-out-of-two taken twice logic.
The above design is documented in section 8.3. 1.4.3 of the FSAR.
This design has been reviewed by the NRC (NRR) staff and found to be in full conformance with the staff position 1CSB17 (PSB)
"Diesel-Generator Protective Trip Circuit, Bypass,"
and found acceptable as documented in the SE The inspectors reviewed the design of the control transfer for the fifth diesel generator E when it is used as a
.maintenance spare for any of the existing four diesel generators.
The trip bypass system of the selected existing diesel generator will perform the same bypass function for the fifth diesel generator which is replacing it. It is concluded that this is acceptable because it meets the original design.
\\
Diesel Generator Power Leads The inspectors reviewed the current carrying capacity (Ampacity) and voltage drop (regulation) associated with the fifth diesel generator power leads.
The fifth diesel generator E facility is located approximately 250 feet east of existing diesel generator buildings.
The longest fifth diesel E generator lead configuration is when it is substituting for the existing diesel generator D.
This tie length is approximately 700 feet.
Gibbs and Hill calculation EG-C7-02, for cable sizing of 4 KV feeder was reviewed.
This review was to ascertain whether the sizing of the E diesel generator leads was adequate based upon referenced industry standards.
The referenced standards, criteria and calculation used to size the generator leads were found acceptable.
The adequacy of the fifth diesel generator lead agrees with an independent verification conducted by the NRC and documented in Combined Inspection Report 387/85-34 and 50-388/85-30.
Although the licensee did not have a
voltage drop calculation for the fifth diesel generator lead this is found to be acceptable.
This is because the NRC independent verification calculation determined this voltage drop was only 10 volts.
Based on the above, it is concluded that the generator leads size selected is acceptable for both ampacity and voltage drop.
Diesel Generator Auxiliar and Su ort S stems.
The inspectors reviewed the following auxiliary and support systems of the fifth diesel generator for acceptability based upon similarity to the existing four diesel generators.
Exceptions will be discussed belo Redundant Engine Starting Systems Emergency Service Water (ESW) System Fuel Oil Storage and Transfer System Lubrication System Combustion Intake and Exhaust System The ESW flow loop A is normally lined up to supply water, to the existing four diesel generators.
The following is the line up for the fifth diesel generator:
ESW valves to loop A and B are closed when not used as replacement of existing diesel generator.
ESW valves are opened to loop A when used for a replacement of any existing diesel generator.
ESW valves are opened to loop B when testing the fifth diesel generator because of loop A capacity limits.
The bulk fuel oil supply consi sts of outside buried storage tanks.
Four 50,000 gallon capacity tanks provide the primary supply for each of the four existing diesel generators.
A new 80,000 gallon capacity tank provides the primary supply for the fifth diesel generator.
Transfer pumps, piping and valves are so arranged that each bulk storage tank normally supplies fuel to a single diesel'owever, necessary valves and piping permit filling any engine day tank from any bulk fuel storage tank.
The five bulk storage tanks are not themselves interconnected.
The above systems for the fifth diesel generator are similar to the same system for the existing four diesel generators for which it will be a replacement.
The ESW system line up for the fifth diesel generator will be to loop A, when it is used as a replacement, which is the same as the other diesel generators.
The increase in storage capacity of the bulk fuel oil supply is an improve-ment to the existing design.
The provision to transfer fuel from this tank to the existing tank is also an improve-ment.
Based on the above it is concluded that the above system design is acceptable.
Diesel Generator Periodic Testin Provisions have been designed into the fifth diesel generator control systems to permit periodic tests for reliability.
The initial load sequence test TP-024-071 discussed in paragraph 4.2.4 did not use the actual ESF loads nor existing load sequence hardware.
When each unit is shut down for refueling the fifth diesel generator will
be tested for local sequencing after replacing one of the existing diesel generators.
The existing diesel generator load sequence will be utilized to load the ESF loads onto the fifth diesel generator.
A different existing diesel generator will be selected when the next unit is shutdown for refueling.
Therefore, the above test, would be conducted at each refueling cycle (approximately nine month intervals for the two unit plants)
using a different unit, different bus load and load sequences.
A monthly test of the fifth diesel generator will be preformed, by the licensee, in accordance with Technical Specification 4.8
~ 1. 13.
This will be a manual start test with the generator suppling power to the off-site system.
Based on the above, it is concluded that adequate pro-visions have been made in the fifth diesel generator design to conduct the necessary surveillance test required by the Technical Specifications.
Electrical S stem and Com onent Desi n Parameters The existing 4, 160 Volt switchgear and buses are designed for 1200 ampere continuous rating, 250 NVA momentary rating.
The circuit breakers are also designed for 29,000 Ampere symmetrical interrupting rating.
The new switchgear and buses installed for the fifth diesel generator modification were also purchased to the above specifications.
The inspectors reviewed the licensee's relay and short circuit calculation 0-51008-1 to ascertain if the new and existing switchgear and buses steady state and transiant fault currents were less than the equipment rating when the fifth diesel generator was being tested or as a replacement for an existing diesel generator.
Although the fifth diesel generator kilowatt capacity is larger than the existing diesel generators, its relatively larger sub-transient reactance limits its current to 8,730 ampere during a faulted condition.
This current, combined with the ESF motor contribution or with the off-site test source, does not exceed the electrical distribution or breaker rating.
The inspectors also reviewed the monthly Fifth Diesel Generator Operability Test, 50-024-014, revision 0, dated April 6, 1987.
Although the diesel generator capacity is 5,000 kilowatts the procedures administratively limit the load to 4,000 K Based on the above, it is concluded that the modifications associated with the fifth diesel generator, do not exceed the new and existing electrical components capabilities=
by design or administrative control, for all operating conditions.
4.2. 10 Redundanc and Inde endence The inspectors reviewed various design documents listed in attachment 4, of this report, to ascertain if redundancy and independence requirements of IEEE STD-279-1971, are being maintained with the fifth diesel generator modifi-cation.
The redundancy and independancy of the four existing diesel generators are being maintained when the fifth diesel generator is selected as a maintenance replacement for any of the four existing diesel generators for the following reasons; The transfer of control, protection, indications, and alarms are by switches at two separate locations.
These switches provide a double break between the common fifth diesel generator system and the redundent system within the transfer switch panel.
The non safety circuit switches are separated by a barrier and separation of the wires is maintained as committed to in the FSAR Section 8. 1.6. 1(n).
4.2.11
~
The transfer of power is through circuit breakers at two separate locations for each redundant system.
There are four normally empty switchgear positions at the fifth diesel generator facility, associated with each of the four existing diesel generators.
Only one circuit breaker is available at this location to be inserted into one of the four positions.
At each of the existing diesel generators, there are two switch-gear positions with only one circuit breaker available.
This design provides two open circuits between redundant power sources.
Based on the above it is concluded that, with the above transfer design for control, protection, indication, alarm and power, the original design for redundancy and independence are being maintained.
Diesel Generator Ali nment Verification The transfer switches and circuit breakers provide independence of redundant control, protection, indication, alarm and power circuits as discussed in paragraph 4'. 10.
However, it is necessary to assure that the
proper transfer of both the electrical system and emergency service water systems have been complete for proper operability.
The inspectors reviewed selected design procedures and drawings listed in attachment 4.
Also reviewed was operating procedure OP-024-004,
"Transfer and Test Mode Operation 4 Diesel Generator E", revision 0.
This review was to ascertain if the design and procedures would provide the proper verification of transfer alignment.
Upon nonalignment of any transfer switch, an annunciator alarm is received in the control room.
This alarm cannot be cleared until the correct transfer for control, protection indication, alarm and power has been completed.
Similarly at each transfer location there is a local indicating -light that will not be illuminated until all correct transfers, including power, have been made at that location.
Based on the above, it is concluded that with the above procedures, local indication lights and control alarms the correct alignment can be achieved.
5.
Conclusion Based on the inspectors review of the licensee's safety evaluations associated with the facility change for the fifth diesel generator addition conducted pursuant to the provisions of 10 CFR 50.59 and of important design features of the facility change, it is concluded that adequate bases exist for the licensee's determinations that the facility change does not involve an unreviewed safety question.
6.
Exit Interview The inspectors met with the licensee representatives denoted in Attachment 5 at the conclusion of the inspection on April 24, 1987.
The inspectors summarized the scope and findings of the inspection at that time.
The inspectors and the licensee discussed the contents of this inspection report to ascertain that it did not contain any proprietary information.
The licensee agreed that the inspection report may be placed in the Public Document Room without prior licensee review for proprietary information (10 CFR 2.790)
At no time during this inspection was written material provided to the licensee by the inspector ATTACHMENT 1 Station Sin le Line Dia ram with Existin 4 Diesel Confi urations LD) LV SWIICHTARD t70 LV SWITCHTAR0 MON'IOVR SWITCHBOARD MOVNIAIH SWIICHTARD LACRAWAHHA MAIN ~ RAHS
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ATTACHMENT 2 Sin le Line Dia ram Showin Addition of Fifth Diesel Generator)
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'ATTACHMENT 3 References (1.1)
CFR 50.59; Changes, Tests and Experiments.
(1.2)
CFR 50, Appendix A, General Design Criteria (GDC)
(1.2.1)
GDC 5; Sharing of Structures, Systems (1.2. 2)
GDC 17; El ectri c Power Systems (1.2.3)
GDC 18; Inspection and Testing of Electric Power System.
(1.3)
CFR 50, Appendix B, Quality Assurance Criteria for Nuclear Power Plants and Fuel Processing Plants 2.
NRC Re viator Guides RGa (2. 1)
RG 1.6, Independence between Redundant Standby (onsite)
Power Sources and between their Distribution Systems (2.2)
RG 1.9, Selection of Diesel Generator Set Capacity for Standby Power Supplies (2.3)
RG 1.75, Physical Independence of Electric Systems 3.
Institute of Electrical and Electronics En ineers IEEE Standards (3.1)
(3 2)
IEEE 308-1974, Criteria for Class 1E Power Systems for Nuclear Power Generating Stations.
IEEE 387-1977, Standard Criteria for Diesel Generator Units Applied a Standby Power supplies for Nuclear Power Generating Stations.
4.
Plant S ecific Documents (4.1)
SSES Final Safety Analysis Report, Section 8., Electric Power Systems.
(4.2)
NUREG-0776, SSES Safety Evaluation Report (SER), April 1981, and its supplements (4.3)
SSES Units 1 and 2 Technical Specifications (TS)
SSES Operating License (OL) Amendment 61 for Unit 1 and Amendment 32 for Unit 2; Subject:
TS Revision for Fifth Diesel Generator
ATTACHMENTS 4 Documents Reviewed Licensee Corres ondence with NRC Licensee Letter, transmitting justification and the 300 start similarly analysis for the fifth diesel generator; September 7,
1984.
NRC Letter, approving the above analysis and enclosing a
NRC safety evaluation, November 8, 1984.
Licensee Letter PLA-2596, requesting amendments to technical specifications to reflect incorporation of the fifth diesel generator; February 10, 1986.
Licensee Letter PLA-2605, transmitting the "Design Description Report" for the fifth diesel generator; March 4, 1986.
NRC Letter, granting the requested amendments (61 for Unit 1 and, 32 for Unit 2) to Technical Specifications; March 16, 1987.
Licensee Letter to NRC Region I, providing information pursuant to
CFR 21 concerning deficiencies in the fifth diesel generator facility safety related HVAC systems, (Draft Letter, not yet dated).
Desi n Chan e Packa es OCPs DCP 83-404B DCP 83-405 DCP 83-803 DCP 83-804 DCP 83-805A DCP 83-805B DCP 83-806A DCP 83-806B
'CP 83-807A DCP 83-807B DCP 83-807C OCP 83-807D OCP 83-907E DCP 83-807F DCP 83-807H OCP 83-807I DCP 83-807J DCP 83-807K ESW and RHR Tie-in to Additional Diesel Generator Install Temporary Security Fence for Additional Diesel Generator.
Temporary Services for Fifth Diesel Generator Construction Relocate Sanitary Sewer Trunk Line Security Tie-ins for D.G. "E" Bldg.
Security Systems Permanent Test Facility D.G. "E" Building Power Supplies Permanent Test Facility Normal D.G. "E" Building Power Supplies Service Air Pump Tie-in Demineralized WTR Tie-in Potable Water Supply Oily Waste System Diesel Generator Roof Drainage Tie-in D.G. "E" Building Roadway Tie-ins PA Systems Cathodic Protection System Lube Oil/Jacket WTR Drain Site Grading Modification
DCP 83-807L DCP 83-807M DCP 83-808A DCP 83-808B DCP 83-809A DCP 83-810A DCP 83-810B DCP 83-811 DCP 83-812A DCP 83-812B DCP 83-812C DCP 83-814A DCP 83-814C DCP 83-814D DCP 86-3015 DCP 87-3014 DCP 87-3015 Road M. Pavement Reconstruction Lube Oil and Jacket Drainage System Fire Protection Line WTR Sup Fire Detection ESW Tie-ins Diesel Generator Fuel Oil Piping Tie-in Fuel Oil Tie-in Underground Ductbanks 4. 16 KV and Control Modification
KV Cable Pull
& Term Control System Modification Conduit
& Cable Installation Relocation of Annunciator Alarms Diesel Generator
"E" OG501E Control
& Indication Circuit Install Control Room Annunciators for Diesel Generator E Indications DCP 87-3014 for E Diesel Generator DCP 87-3015 for E Diesel Generator Safet Evaluations SEs (Unnumbered),
(Draft) Safety Evaluation for the Overall Fifth Diesel Generator Facility 83-803 83-804 83-805A 83-806A 83-806B 83-807A 83-807B 83-807C 83-807D 83-807E 83"807F 83-807H 83-807I 83-807J 83-807M 83"808A 83"808B 83-809A 83-810A 83-811 83-812A 83-812B Temporary Services for Fifth Diesel Generator Construction Relocate Sanitary Sewer Trunk Line Security Tie-ins for D.G
~ "E" Bldg.
Permanent Test Facility D.G. "E" Building Power Supplies Permanent Test Facility Normal D.G. "E" Building Power Supplies Service Air Pump Tie-in Demineralized WTR Tie-in Potable Water Supply Oily Waste System Diesel Generator Roof Drainage Tie-in D.G. "E" Building Roadway Tie-ins PA System Cathodic Protection System Lube Oi 1/Jacket WTR Drain Lube Oil and Jacket Drainage System Fire Protection Line WTR Sup Fire Detection ESW Tie-ins Diesel Generator Fuel Oil Piping Tie-in Underground Ductbanks 4. 16 KV and Control Modification
KV Cable Pull
& Term
e
83-812C 83-814A 83-814C 83-814D 83-404B 83-405 Control System Modification Conduit 8 Cable Installation Relocation of Annunciator Alarms Diesel Generator
"E" OG501E Control 8 Indication Circuit ESW and RHR Tie-in to Additional Diesel Generator Install Temporary Security Fence for Additional Diesel Generator
4.
~0rawin s
Drawi n Number C-5003 M-5200, Sheet
M-5200, Sheet
M-120, Sheet
J-120, Sheets, 3, 4,
M-ill, Sheet
J-ill, Sheets, 10, ll, 13, 14, 14A,
M-182, Sheet
M-122, Sheet
Fig.
F-1006 M-134, Sheet
E5, Sheet
E9, Sheet
Title Diesel Generator E Facility Site Development Plan Diesel Generator E Building General Arrangement Plans Diesel Generator E Building General Arrangement Sections Flow Diagram Diesel Oil Storage and Transfer Diesel Generator E Building ICD Diesel Generator E Building Diesel Oil and Storage System Flow Diagram Emergency Service Water System Diesel Generator E Building ICD Diesel Generator E. Building Emergency Service Water System Diesel Generator E Building Air Flow Diagram Flow Diagram Fire Protection Diesel Generator E Building Emergency Diesel E Generator Instrument and Logic Flow Diagram Fire Protection System Flow Diagram Diesel Auxiliaries Diesel Generator E Building Single Line Meter 8 Relay 4. 16 kV diesel generator E
One Line Diagram 480 V MCC - OB565 Diesel Generator E Units 1 5 2
Drawin Number Title E9, Sheet
E11, Sheet
E23, Sheet
E23, Sheet
E23, Sheet 6A E23, Sheet
One Line Diagram 480 V MCC - OB566 Diesel Generator E Units 1 & 2 125V dc One Line Diagram Diesel Generator E Units 1 & 2 4. 16 Kv Three Line Diagram Diesel Generator E
Schematic Diagram Switch Contact Development Transfer Panels OC512 E"A, E-B, E-C & E-D Schematic Meter
& Relay Diagram 4. 16 kV Diesel Generator A, B, C,
&
D Transfer Control - Diesel Generator E Units 1 & 2 Schematic Meter & Relay Diagram 4. 16 kV Diesel Generator A, B, C & D Transfer Control - Diesel Generator E
Units 1 & 2 E23, Sheet
E23, Sheet 8A E105, Sheet
E23, Sheet ll E105, Sheet
E105, Sheet
Schematic Meter & Relay Diagram 4.16 kV Diesel Generator A, B, C & D Transfer Control Diesel Generator E
Units 1 & 2 Schematic Meter & Relay Diagram 4. 16 kV Diesel Generator A, B, C & D Transfer Control - Diesel Generator E
Units 1 & 2 4.16 kV Breaker Schematic Diagram Schematic Meter & Relay Diagram 4.16 kV Diesel Generator A, B, C,
& D Transfer Control - 'Diesel Generator E
Units 1 & 2 Schematic Diagram 4. 16 kV Bus Diesel Generator Circuit Breakers Transfer Control Diesel Generator E Unit 1 Schematic Diagram 4.16 kV Bus Diesel Generator Circuit Breakers Transfer Control Diesel Generator E Unit
Dr awin Number Title E105, Sheet
E105, Sheet
Schematic Diagram 4.16 kV Bus "1A, 1B, 1C, ID" & 2A, 2B, 2C, 2D, Diesel Generator Circuit Breaker Trip Interlock with Diesel Generator
"A, B, C,
D,
& E" Transfer Units 1 & 2 Schematic Diagram
~ 16 kV Bus "1A, 1B, 1C, 1D" & 2A, 28, 2C, 2D Diesel Generator Circuit Breaker - Trip Interlock with Diesel Generator A, B, C,
D, & E Transfer Units 1 & 2 E146, Sheet 9A Schematic Diagram ESW Diesel Cooler Valves Loop A HV-01112 A, B, C,
D & E Transfer Common E146, Sheet 9B Schematic Diagram ESW Diesel Cooler Valves Loop A HV-01112 A, B, C,
D & E Transfer Common E146, Sheet 9C, Schematic Diagram ESW Diesel Cooler Valves Loops A HV-01112 A, B, C,
D & E Transfer Common E146, Sheet 9D Schematic Diagram ESW Diesel Cooler Valves Loop A HV-01122 A, 8, C,
D &
Transfer Common E146, Sheet 9E Schematic Diagram ESW Diesel Cooler Valves Loop A JV-01122 A, 8, C,
D & E Transfer Common E259, Sheet lA Schematic Diagram Diesel Generator Excitation Transfer Contr'ol Diesel Generator E Common E259, Sheet 9A Schematic Diagram Diesel Generator Engine Transfer Control Diesel Generator E Common E259, Sheet 9B Schematic Diagram Diesel Generator Engine Transfer Control Diesel Generator E Common E259, Sheet 9C Schematic Diagram Diesel Generator Engine Transfer Control Diesel Generator E Common
ODiDII b
E259, Sheet
Title Schematic Diagram Diesel Generator
"A"
-Diesel Generator E Transfer Alignment Indication Common E259, Sheet
Schematic Diagram Diesel Generator
"B"
-Diesel Generator E Transfer Alignment Indication Common E259, Sheet
Schematic Diagram Diesel Generator
"C"
-Diesel Generator E Transfer Alignment Indication Common E259, Sheet
Schematic Diagram Diesel Generator
"D"
-Diesel Generator E Transfer Alignment Indication Common E331, Sheet
Schematic Diagram Annunciator Plant Operating Bench Board OC653 Transfer Control - Diesel Generator E Common E331,Sheet
Schematic Diagram - Annunciator Plant Operating Bench Board OC653 Transfer Control Diesel Generator E Common E332, Sheet 4A Schema tic Diag ram Annunc iator HVAV Control Board OC681 Transfer Schematic Common E105, Sheet 31,
E146, Sheet
4.16 kV Breaker Connection Diagram ESW Motor Operated Valve No.
Schematic and Connection Diagram E146 Sheet
ESW Motor Operated Valve No.
Schematic and Connection Diagram E146, Sheet
E146, Sheet
ESW Motor Operated Valve No.
Schematic and Connection Diagram ESW Motor Operated Valve No.
Schematic and Connection Diagram
5.
Cal cul ati ons Calculation No.
MC-SM"003 SC-DB-07A SC-DB-08-SetA Rev.
Title ESM System Pressure Drop D/G "E" Building-Tornado Loading 5 Missle Protection D/G "E" Building-Design Criteria for Cable Tray Support EC-D0-01 Battery and Battery Charger EC-CZ-01 EC-CZ-02 480 V System Calculations (Vol. 1)
Cable Sizing Calculation
KV Feeders EC-CZ-04 Cable Sizing and Voltage Drop Calculation (DCP 83-805A) Part II EC-CP-01 Cathodic Protection Part I and II EC-FC-01 480 V Short Circuit Calculations
Calculation No.
Rev.
Title EC"FC"02 Fuse Sizing Calculations 750 I(VA 13.2 I%V/480 V Transformer EC-CZ-06 480 V Motor Circuit Sizing (OCP 83-807M) (Part II)
3544-SDC-022 Seismic Analysis Procedure and Models for the New emergency D/G Building.
PBS-PD-3 Fire Protection Pressure Drop Calculation MC-FP-01 Fire Protection System Water Pressure Available for D/G "E" Building.
0-51008-01 Relay Setting Calculation for Diesel Generator E
Differentia.
Test Procedures and Test Re orts HILTI-1 F-6129-001 Hilti Kwik and Super Kwik Bolt Test Program, United States Testing Company Inc., Revision 1, July 31, 1986.
Static Testing of Cable Tray Assemblies, Franklin Research Center, March 6, 1986.
TP-02-013 TP-024-071 TP-024"013 300 Start Test Generic Qualification Study, Morrison-Knudsen, Revision, June 1,
.
(This study was done per specification M 1~082 Fifth Diesel Generator Preoperational Test, Revision 0, February 13, 1987 Site Test to supplement Morrison-Knudson Factory Tests, Revi sion 1, February 23, 1987 Diesel Generator the operational test, Revision 0, February 13, 1987.
7.
0 eration and Surveillance Procedures OP-024-001 OP-024-004 SO-024-001 S0-024-014 S0-054-001 Diesel Generators, revision 10, February 20, 1987.
Transfer and Test Mode Operations of Diesel Generator E, revision 0, February 20, 1987.
Monthly Diesel Generator Operability Test, revision 0, April 6, 1987 Monthly Diesel Generator
"E" operability, Test, Revision 6, April 6, 1987.
Monthly Emergency Service Water System Alignment check, revision 4, July 25, 198 ATTACHMENT 5 Persons Contacted Penns lvania Power and Li htin Com an PPSL W. Barberich, Supervisor - Planning and Licensing
"P. Brady, Senior Project Engineer-Electrical
- F. Czysz, Senior Project Engineer-Mechanical
- D. Dunn, Design Project Manager E.
Heckman, Licensing Group Supervisor
- Metzger, Supervising Engineer-Project Management
"M. Rose, Project-Engineer
"R. Schwan, Assistant Manager-NgA
'J.
Swankoski, Senior Project Engineer-Civil
- D. Walters, Project Licensing Specialist Note:
- Denotes those present at the Exit Meeting