ML17298C005
| ML17298C005 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 03/26/1985 |
| From: | Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| To: | Knighton G Office of Nuclear Reactor Regulation |
| References | |
| ANPP-32231-EEVB, NUDOCS 8504050221 | |
| Download: ML17298C005 (8) | |
Text
REGULATOR INFORMATION DISTRIBUTION TEM (RIDS)
ACCESSION NBA 8504050221 DOC,DATE: 85/03/26 NOTARIZEDs NO FACIL~STN 50 529 Palo Vel de Nuclear-Stations Unit 2i Ar izona Publi "STN~50 530 Palo Ve>de Nuclear Stations Unit '3i Ar izona Publ i AUTH~ NAME AUTHOR AFFILIATION VAN BRUNTrE ~ E>,
Arizona Public Service Co.
RECIP ~ NAME>
RECIPIENT AFFILIATION KNIGHTONrGv HI Licensing Branch'-3 DOCKET 05000529 05000530
'SUBJECT! Forwards"uedated summary, of r.emaining work 8 costs-r ei de]etion~ of RCS'ipe~ whip restraints 8 Jet imping@ment" shields >>requested in 841'210 application ~to amend CPPR 142' CPPR~143
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Arizona Nuclear Power Project P.o. BOX 52034 4
PHOENIX, ARIZONA85072-2034 ANPP-32231-EEVB/MFQ March 26, 1985 Director of Nuclear Reactor Regulation Mr. George M. Knighton, Chief Licensing Branch No. 3 Division of Licensing U.S. Nuclear Regulatory Commission washington, D.C.
20555
Subject:
Palo Verde Nuclear Generating Station (PVNGS)
Units 2 and 3
Docket Nos.
STN 50-529/530 Request for Amendment for Construction Permits CPPR-142 and 143 File: 85-056-026 G.1.01.10
Reference:
Letter from E. E.
Van Brunt, Jr.,
ANPP, to G.
W. Knighton,
- NRC, dated December 10, 1984 (ANPP-31417).
Dear Mr. Knighton:
The referenced letter provided a request to amend the Construction Permits CPPR-142 and 143, to allow the deletion of reactor-coolant system pipe whip restraints and jet impingement shields.
These devices were included in the design to guard against the effects of postulated double-ended guillotine breaks in the reactor coolant system piping,'hich are discussed in CESSAR Section 3.6.
Supporting justi-fication for the request, provided in the referenced letter, included estimates of costs related to the remaining work, as of November 30,
- 1984, and occupational exposure associated with moving and resetting these devices during the life of plant operation to allow inservice inspection.
Even though this request for amending the construction permits was provided by the referenced letter, ANPP has continued to proceed with fabrication, construction and installation of the pipe whip restraints and jet impingement shields.
An updated summary of the remaining work and costs is provided in Attachment l.
In
- summary, as of March 15, 1985, the pipe whip restraints and jet impingement shields are installed in Unit 2 and are awaiting clearance measurements during pre-core hot functional testing.
For Unit 3, the pipe whip restraint saddles are being fabricated and are therefore not installed, and the jet impingement shields are also not installed.
Please contact Mr. M. F. Quinn of my staff if you have any questions on this matter.
Very truly yours, S5OOOSOM o5OOOsa9 QSO326 pDR
+DOCK pDR EEVB/TFQ/mb Attachment E. E.
Van Brunt, Jr.
Executive Vice President Project Director ural I
V
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p' Mr. George W. Knighton Request for Amendment for 'onstruction Permits CPPR-142 and 143 ANPP-32231 Page 2
cc:
E. A. Licitra R. P.
Zimmerman A. C. Gehr
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ANPP-32231 ATTACHMENT 1
SUMMARY
OF REMAINING WORK AND COST ESTIMATES Construction and installation cost savings can be substantial.
Cost estimates associated with the remaining work, as of March 15, 1985 are summarized as follows:
A)
Unit 2 i)
Pipe Whip Restraints (Quantity-22) a)
Clearance Measurements during pre-core HFT b)
Complete Installation c)
Verify Clearances during post-core HFT ii) Total Construction and Installation Costs
$ 70,000 300,000 100 000
$470,000 B)
Unit 3 i)
Pipe Whip Restraints (Quantity-22),
a)
Saddle Fabrication b) 'onstruction and Installation prior to pre-core HFT c)
Clearance Measurements during pre-core HFT
')
Complete Installation e)
Verify Clearances during post-core HFT ii) Jet Impingement Shields (Quantity-6)
Construction and Installation iii) Total Construction and Installation Costs
$100,000 230,000 70,000 300,000 100,000 100 000
$900,000
f A
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