ML19343B418: Difference between revisions

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f!            MISSISSIPPI POWER & LIGHT COMPANY
f!            MISSISSIPPI POWER & LIGHT COMPANY
:i  ]h  0                    Helping Build Mississippi bm            P. O. B O X 16 4 0. J A C K S O N. MIS SIS SIP PI 39205 YCO8Sei7 elf                                            December 16, 1980
:i  ]h  0                    Helping Build Mississippi bm            P. O. B O X 16 4 0. J A C K S O N. MIS SIS SIP PI 39205 YCO8Sei7 elf                                            December 16, 1980 Office of Inspection & Enforcement U. S. Nuclear Regulatory Commission Region II 101 Marietta Street, N.W.
                                                                                            .
Office of Inspection & Enforcement U. S. Nuclear Regulatory Commission Region II 101 Marietta Street, N.W.
Suite 3100                                                                          '
Suite 3100                                                                          '
Atlanta, Georgia 30303 Attention:      Mr. J. P. O'Reilly, Director
Atlanta, Georgia 30303 Attention:      Mr. J. P. O'Reilly, Director
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Qualification tests for materials used in insulation repair are par-tially complete. A status report is attached. Our final report on this matter, which will include a determination of reportability,will be pro-
Qualification tests for materials used in insulation repair are par-tially complete. A status report is attached. Our final report on this matter, which will include a determination of reportability,will be pro-
     ,.. vide { to you rby February 24, 1981.
     ,.. vide { to you rby February 24, 1981.
  -
Yours truly, 3DII
Yours truly, 3DII
                 ~
                 ~
                                                     -ftg]n                          ,
                                                     -ftg]n                          ,
              ,.
J. P. McGaughy, Jr.
J. P. McGaughy, Jr.
              ,.
EWC:mt
EWC:mt
                                                                                       //
                                                                                       //
Attachment 0@d              Member Middle South Utilities System
Attachment 0@d              Member Middle South Utilities System


                                  .
D .
D .
'''                      MISSISSIPPI POWER & LIGHT COMPANY-Mr. J. P. O'Reilly                              AECM-80/311 NRC                                              Page 2 cc:  Mr. N. L. Stampley Mr. R. B. McGehee Mr. T. B. Conner Mr. Victor Stello, Director Division of Inspection & Enforcement U. S. Nuclear Regulatory Commission Washington. D.C. 20555
'''                      MISSISSIPPI POWER & LIGHT COMPANY-Mr. J. P. O'Reilly                              AECM-80/311 NRC                                              Page 2 cc:  Mr. N. L. Stampley Mr. R. B. McGehee Mr. T. B. Conner Mr. Victor Stello, Director Division of Inspection & Enforcement U. S. Nuclear Regulatory Commission Washington. D.C. 20555 0
                                        .
0
                                            .
                                        .


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                  .
Attachment to AECM-80/311 Page 1 of l
Attachment to AECM-80/311 Page 1 of
i, STATUS REPORT #3 ON PRD-80/10 I. Description of the Deficiency i
                                                                                                                              '
l i,
STATUS REPORT #3 ON PRD-80/10
:
I. Description of the Deficiency i
A 10CFR50.55(e) report was filed by the Arizona Public Service Company for its Palo Verde Nuclear Generating Station concerning
A 10CFR50.55(e) report was filed by the Arizona Public Service Company for its Palo Verde Nuclear Generating Station concerning
<                                apparent deficiencies in 600 V cable supplied by Rockbestos. Mis-I                                sissippi Power & Light notified the NRC in Washington on 3/21/80
<                                apparent deficiencies in 600 V cable supplied by Rockbestos. Mis-I                                sissippi Power & Light notified the NRC in Washington on 3/21/80
;                                of Potentially Reportable Deficiency (PRD) 80/10 concerning Rock-bestos cable delivered to Grand Gulf Nuclear Station (GGNS). Our initial report to the NRC indicated that cable splices were central to the GGNS deficiency, as was the case at Palo Verde. However, the cable delivered to GGNS did not contain splices. Therefore, the PRD was revised to pertain only to cable insalation repairs
;                                of Potentially Reportable Deficiency (PRD) 80/10 concerning Rock-bestos cable delivered to Grand Gulf Nuclear Station (GGNS). Our initial report to the NRC indicated that cable splices were central to the GGNS deficiency, as was the case at Palo Verde. However, the cable delivered to GGNS did not contain splices. Therefore, the PRD was revised to pertain only to cable insalation repairs that were not qualified to IEEE Standard 383. These insulation repairs are described by Rockbestos as factory insulation patches.
,
that were not qualified to IEEE Standard 383. These insulation repairs are described by Rockbestos as factory insulation patches.
II. Resolution of the Deficiency The cable supplier, Rockbestos, has undertaken qualification tests i                                to demonstrate the acceptability of the insulation repairs made on this cable at the factory.
II. Resolution of the Deficiency The cable supplier, Rockbestos, has undertaken qualification tests i                                to demonstrate the acceptability of the insulation repairs made on this cable at the factory.
                                                                                                                            .
III. Status The' qualification. tests have been completed on materials used in
III. Status The' qualification. tests have been completed on materials used in
: l.                                cables of the type that are now being shipped by Rockbestos to
: l.                                cables of the type that are now being shipped by Rockbestos to
;                                GGNS. Tests results have been reviewed by our Architect / Engineer and the cable is considered qualified. However, testing on cables representative of the kind that had previously been shipped to CGNS has not yet been completed..
;                                GGNS. Tests results have been reviewed by our Architect / Engineer and the cable is considered qualified. However, testing on cables representative of the kind that had previously been shipped to CGNS has not yet been completed..
                                                                      .
IV. Reasons for Delaying Final Report Qualification testing to IEEE 383 for the Rockbestos cables shipped l'                                to.GGNS prior to December, 1979, have not yet been completed..
IV. Reasons for Delaying Final Report
V. ~ Projected Final Response Submitte.1 Rockbestos expects to make a 10CFR21 reportability determination after completion of the qualification tests. At that time we also expect to determine reportability under 10CFR50.55(e) and submit a final report by February 24, 1981.
.
Qualification testing to IEEE 383 for the Rockbestos cables shipped l'                                to.GGNS prior to December, 1979, have not yet been completed..
V. ~ Projected Final Response Submitte.1
                                                                .
Rockbestos expects to make a 10CFR21 reportability determination after completion of the qualification tests. At that time we also expect to determine reportability under 10CFR50.55(e) and submit a final report by February 24, 1981.
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Latest revision as of 08:35, 31 January 2020

Deficiency Rept 3 Re Unqualified Insulation Repairs in Rockbestos Supplied 680 V Cable.Qualification Tests to Be Performed to Demonstrate Acceptability of Repairs.Final Rept to Be Provided by 810224
ML19343B418
Person / Time
Site: Grand Gulf  Entergy icon.png
Issue date: 12/16/1980
From: Mcgaughy J
MISSISSIPPI POWER & LIGHT CO.
To: James O'Reilly
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
10CFR-050.55E, 10CFR-50.55E, AECM-80-311, NUDOCS 8012230429
Download: ML19343B418 (3)
v • d • e


Text

l\[ t [ 2,

/'

c, > ,

f! MISSISSIPPI POWER & LIGHT COMPANY

i ]h 0 Helping Build Mississippi bm P. O. B O X 16 4 0. J A C K S O N. MIS SIS SIP PI 39205 YCO8Sei7 elf December 16, 1980 Office of Inspection & Enforcement U. S. Nuclear Regulatory Commission Region II 101 Marietta Street, N.W.

Suite 3100 '

Atlanta, Georgia 30303 Attention: Mr. J. P. O'Reilly, Director

Dear Mr. O'Reilly:

SUBJECT:

Grand Gulf Nuclear Station Units 1 and 2 Docket Nos. 50-416/417 File 0260/15525/15526 PRD-80/10, Status Report No. 3, Unqualified Insulatien Repairs in Rockbestos Supplied Cable AECM-80/311

References:

1) AECM-80/81, 4/18/80
2) AECM-80/221, 9/16/80 On March 21, 1980, Mississippi Power & Light Conpany notified Mr.

M. Mendonca of the NRC in Washington of a Potentially Reportable Defi-ciency (PRD) at the Grand Gulf Nuclear Station. The deficiency concerns unqualified cable insulation repairs in 680 V cable supplied by Rock-bestos.

Weare continuing to investigate the safety implications of this deficiency. As previously reported, our investigation pertains only to the cable insulation repairs that were not qualified in accordance with IEEE Standard 383, and not to cable splices as stated in our initial report.

Qualification tests for materials used in insulation repair are par-tially complete. A status report is attached. Our final report on this matter, which will include a determination of reportability,will be pro-

,.. vide { to you rby February 24, 1981.

Yours truly, 3DII

~

-ftg]n ,

J. P. McGaughy, Jr.

EWC:mt

//

Attachment 0@d Member Middle South Utilities System

D .

MISSISSIPPI POWER & LIGHT COMPANY-Mr. J. P. O'Reilly AECM-80/311 NRC Page 2 cc: Mr. N. L. Stampley Mr. R. B. McGehee Mr. T. B. Conner Mr. Victor Stello, Director Division of Inspection & Enforcement U. S. Nuclear Regulatory Commission Washington. D.C. 20555 0

o 4

J , .-

Attachment to AECM-80/311 Page 1 of l

i, STATUS REPORT #3 ON PRD-80/10 I. Description of the Deficiency i

A 10CFR50.55(e) report was filed by the Arizona Public Service Company for its Palo Verde Nuclear Generating Station concerning

< apparent deficiencies in 600 V cable supplied by Rockbestos. Mis-I sissippi Power & Light notified the NRC in Washington on 3/21/80

of Potentially Reportable Deficiency (PRD) 80/10 concerning Rock-bestos cable delivered to Grand Gulf Nuclear Station (GGNS). Our initial report to the NRC indicated that cable splices were central to the GGNS deficiency, as was the case at Palo Verde. However, the cable delivered to GGNS did not contain splices. Therefore, the PRD was revised to pertain only to cable insalation repairs that were not qualified to IEEE Standard 383. These insulation repairs are described by Rockbestos as factory insulation patches.

II. Resolution of the Deficiency The cable supplier, Rockbestos, has undertaken qualification tests i to demonstrate the acceptability of the insulation repairs made on this cable at the factory.

III. Status The' qualification. tests have been completed on materials used in

l. cables of the type that are now being shipped by Rockbestos to
GGNS. Tests results have been reviewed by our Architect / Engineer and the cable is considered qualified. However, testing on cables representative of the kind that had previously been shipped to CGNS has not yet been completed..

IV. Reasons for Delaying Final Report Qualification testing to IEEE 383 for the Rockbestos cables shipped l' to.GGNS prior to December, 1979, have not yet been completed..

V. ~ Projected Final Response Submitte.1 Rockbestos expects to make a 10CFR21 reportability determination after completion of the qualification tests. At that time we also expect to determine reportability under 10CFR50.55(e) and submit a final report by February 24, 1981.

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