ML19345C761
| ML19345C761 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 12/01/1980 |
| From: | Mills L TENNESSEE VALLEY AUTHORITY |
| To: | Schwencer A Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8012080314 | |
| Download: ML19345C761 (3) | |
Text
TENNESSEE VALLEY AUTHORITY o
CH ATT ANOOG A. T EflNEGSCE 37401 400 Chestnut Street Tower II December 1, 1980 Director of Nuclear Reactor Regulation Attention:
Mr. A. Schwencer, Chief Licensing Branch No. 2 Division of Licensing U.S. Nuclear Regulatory Commission Washington, DC 20555
Dear Mr. Schwencer:
In the Matter of the Application of
')
Docket Nos. 50-327 Tennessee Valley Authority
)
50-328 Enclosed are draft changes to Section 17.1 A.11.3 of the Sequoyah Nuclear Plant Final Safety Analysis Report (FSAR). This sectica is being modi-fled to clarify TVA's control of construction and preliminary testing.
This material will be incorporated into the FSAR by An.endment 68.
Very truly yours, TENNESSEE VALLEY AUTHORITY
. M. Mills, Manager Naclear Regulation and Safety Sworn to and subscr bed before me thin /4 [ day of d /C 6,
1980
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Enclosure cc:
Mr. James P. O'Reilly, Director (Enclosure)
Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission n,
Region II - Suite 3100 s3myjp.
101 Marietta Street E
Atlanta, Georgia 30303 4 3 Kd g 333 t, um 5, N0lI0tiihti.)
An Equa! Oppor tunity Employcr s012o803/V
SNP.
The organization and relationships of the Inspection and Testing Branch are defined in Subparagraph 17.lA.l.6.3.
The organization and relation-ships of the construction inspection group are defined in Subparagraph
- 17. lA. l. 7. 6.
l2C 17.lA.ll TEST CONTROL The test program implemented during the design and construction phases includes those tests necessary to verify the adequacy of equipment and component design (design qualification), their proper fabrication and assembly (product acceptance), the adequacy of field erection and installation (construction and preliminary tests), and the adequacy of system design and construction (pre-operational tests).
17.lA.11.1 Design Qualification Tests Equipment and component design is verified by design control methods de-fined in Subsection 17.lA.3.
Where testing is necessary as a method to verify design, a qualification test program is established by specification which identifies the specific test requirements, test conditions, configuration of equipment or ccmponent subject to test, test responsibilities, and test reporting requirements. Design qualification or type testing where necessary is normally required for one of a kind, prototype, or first item only.
17.1A.ll.2 product Acceotance Tests Proper fabrication and assembly is verified by functional and other tests performed on each item shipped. Acceptance test requirements are defined in procurement specifications in terms of tests to be performed, test conditions, test respons bilities, test procedures required, test reporting requirements, and review and/or approval requirements for test procedures and results.
These tests normally supplement, where necessary, specified inspection and examination requirements which verify materials and processes.
17.lA.ll.3 Construction and Preliminary Tests The adequacy of field erection and installation is verified by a construction test program which supplements the inspections and examinations performed to verify materials and processes.
Concrete sample tests are performed in accordance with General Construction Specification G-2, Plain and Re-inforct4 Concrete, and Material Specifications. Ilydrostatic testing of installed piping systems is performed in accordance with applicable codes.
Proof loading and operating tests are performed on crancs and hoists in accordance with equipment specifications.
Containment pressure tests are performed in accordance with the applicable specification.
Various electrical and mechanical tests are performed in accordance with written procedures for preliminary tests.
These tests are normally performed prior to the preoperational tests.
Final detailed procedures for preliminary tests are reviewed and approved by CONST.
I l
17.1A-25
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SMP-J Pr:liminary t:sts are performed under direction of TVA CONST with operators and test assistance provided by TVA Of fice of Power.
The NSSS vendor provides instructions and directions as required by TVA for j
systems within the NSSS vendor's Scope of Supply.
The Division of Engineering Design (EN DES) provides technical assistance as required.
Test objectives are defined by the te;t procedures. Approved construction procedures prescribe the conduct and documentation of installation inspection activities to assure system and/or subsystem completeness prior to the formal preoperational tests.
The preliminary test results are evaluated on site at time of test by CONST with assistance paquired from the NSSS vendor. EN DES engineers are available to assist with evaluation as needed.
i 17.lA.ll.4 Preocerational Tests Preoperational tests are performed to verify that systems have been de-signed and constructed such that they will operate as intended. More detailed information concerning preoperational test program is included i
I 20 in Chapter 14.
1.
Planning and Proced a s, DED Prepares preoperational test scoping documents which define the tests to be performed and the performance objectives on all systems designed by TVA. The NSSS vendor prepares instructions for systems within its Scope of Supply. After proper approval, the test scoping documents and instructions are issued to DPP and DEC.
Final detailed procedures are prepared within the requirements of the test scoping documents. The detailed procedures are reviewed by the proper divisions
'O
% in the Of fices of Engineering Design and Construction, Power, and g
the NSSS vendor.
2.
Acceptance for Testinc and Opera ion The transfer of equipment consists of three steps.
(1) The " Release I
For Operation" permits initial operation of components. The initial operations period is that phase during which construction tests and other prerequisites to the preoperational tests are conducted. System status is defined as specified in approved construction procedures.
O (2) The " Tentative Transfer" involves a complete system of subsystem and includes an itemized list of outstanding items that must be completed before DPP finally accepts the system. The completion of preoperational tests shall be included in the itemized list. This document defines the system status at the time of transfer. System status subsequent to this time is defined as specificd in the Operational Quality Assurance Manual.
These methods include clearance procedures, grounding procedures, jumper control logs, and trouble reports.
A period of pretest checkout occurs af ter the tentctive transfer and before the preoperational tests.
(3)
Af ter completion of the preoperational tests and correction of any deficiencies, the system is accepted by DPP for safe operation.
3.
Conduct of Preoperational Tests Preoperational tests are performed under the direction of DPP. The NSSS vendor provides instructions and direction as required by TVA for systems within the NSSS vendor's Scope of Supply and DEC and DED provide technical assistance as required.
17.lA-26 A
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