ML20041C718
| ML20041C718 | |
| Person / Time | |
|---|---|
| Site: | Summer  |
| Issue date: | 02/23/1982 |
| From: | Nichols T SOUTH CAROLINA ELECTRIC & GAS CO. |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| References | |
| RTR-NUREG-0737, RTR-NUREG-737, TASK-1.D.1, TASK-TM NUDOCS 8203020501 | |
| Download: ML20041C718 (2) | |
Text
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d SOUTH CAROLINA ELECTRIC a GAS COMPANY POST OFFICE Box 764 COLUMBIA, SOUTH CAROLINA 29218 9Iff O)
T. C. Nic Ho LS, J R.
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February 23, 1982 sy W
A Mr. Harold R. Dmtcn, Director
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if Office of Nuclear Reactor Regulaticns
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U. S. Nuclear Regulatory Comissial c,
,f Washingtal, D. C.
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Subject:
V. C. Sumer Nuclear S 't'im Docket No. 50/395
' (,7p I s '
NUREG-0737, Its I.D.1 Ccntrol Room Design Review, Human Factors SER It s 1.6.8
Dear Mr. Dmtcn:
In a letter to you, al this subject, dated November 25, 1981, South Carolina Electric and Gas Cmpny (SCE&G) comitted to provide additicnal informaticn cn several outstanding items of our Ccntrol Boom Design Review. Bis letter gevides that additicnal informaticn, with each item idmtified by the number used in the discussicn of 'IMI Item I.D.1 in the Virgil C. Sumer Nuclear Staticn Safety Evaluaticn Report (SER) Supplemmt No.1, Agil,1981.
7.0e Fire and Security Alarm Systs te fire and security alarm system has becn canpleted and Essex Corp. has dcne the hunun factors review. me review identified two goblms. Se first goblem involved an incorrectly installed bezel which partially obstructed an alarm message. We bezel is now fitted pcoperly correcting this pcob1m. %e seccnd proble involved a dirty alarm screen resulting in glare from overhead light. 'Ihe screcn was cleaned correcting this Iroblm.
9.0f Renute Shutdown Panels obdificaticns to the remote shutdcun pnels have been cmpleted and Essex Corp. has date the human factors review. A thorough review of the panels was dcne including ccntrols, displays, castrol display integratial, labeling, lighting and g90/
comunicatio1. We backfits included rearranging three V I indicators and three ccntrollers into A-B-C order, nudifying som reverse acting cxntrollers to make them direct acting, and revising indicator scales and device labels for imgaved lD readability md cmsistscy. Both the normal PC lighting and the atergency DC lighting levels were measured and found to be betweel 32 and 44 footcandles, exceeding the reconreided minimum of 30 footcandles. obthods of commicaticn betweet the renote shutdown area, the control room, and other plant areas required for rennte shutdom include hand held radios, sound powered pholes and the plant Inge system. During recent tests, remote shutdom pcocedures were completed using these nethods of CamM11 Cat 101-8203020501 820223 PDR ADOCK 05000 E
A
-s Mr. Harold Dcntcn Page two February 23, 1982 10.0 a & 11.0 a Subcooling bblitor and Reactor Vessel Level After reviewing our November 25, 1981 letter, the Staff requested that SCE&G supply additicnal informaticn Cn the subcooling mmitor and reactor vessel level instrumentaticn cn the Main Omtrol Board.
'Ihe subcooling nulitor and reactor vessel level indicators were incorporated into the Reactor Coolant System secticn of the M1in Cottrol Board during the ccntrol display arrangemmt and demarcaticn review. 'Ihe subcooling nulitor indicators and reactor vessel level indicators and recorder were located cn the right side of this secticn adjaceit to the Reactor Coolant System tenperature, Iressure and flow instrumentaticn. 'Ihe demarcaticn, labeling and scale design were date in accordance with the Labeling, Demarcaticn and Mimic Specificaticn and the Vertical Indicator Specificaticn. 'Ihe result is an effective grouping of indicators and castrols which are easy to ideitify and read.
'Ihis informaticn should be sufficielt for you to canplete your review of these items.
If you have any further questions, please let us know.
Very truly yours, T. C. Nichols, Jr.
l SC:'ICN:tdh cc:
V. C. Sunmer C.L. Ligon (NSRC)
T. C. Nichols, Jr.
J. P. O'Reilly G. H. Fisher H. N. Cyrus H. T. Babb D. A. Nauman M. B. M1itaker, Jr.
W. A. Williams, Jr.
O. S. Bradham R. B. Clary M. N. Browne A. R. Kocn G. J. Braddick J. K. Skolds J. B. Riotts, Jr.
B. A. Bursey J. C. Ruoff T. Wessner NPCF File