ML20206G502

SER Supporting Employee Concern Element Rept 23504, Exposed HV Cable Routed W/O Raceway - Personnel Hazard

ML20206G502
Person / Time
Site:	Sequoyah
Issue date:	11/04/1988
From:	NRC OFFICE OF SPECIAL PROJECTS
To:
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References
NUDOCS 8811220299
Download: ML20206G502 (2)

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SAFETY EVALUATION REPORT BY THE OFFICE OF SPECIAL FROJECTS EMDLOYEE CONCERN ELEMENT REPORT 23504 "EXPOSED HV CABLE DOUTED WITHOUT RACEWAY - PERSONNEL HAZAR0

TENNESSEE VALLEY AUTHORITY SECUOYAH NUCLEAR POWER PL ANT. UN'TS 1 AND 2 DOCKET NOS. 50-327 AND 50-328

1. SUBJECT Categery: Engineering (20,000)

Subcategory: Electrical Safety (23500)

Element: Exposed HV Cable Routed Without Raceway Persennel Hazard (23504)

Employee Concern: IN-65-749-001 Element Fe: ort 23504, Rev. 1, dated October 21, 1986, involves Watts Edr Employee Concern IN-85-749-On1 which states:

"High vc1tage cables are laid around edge of rooms (such as raceway in Reactor Fc. 2} witnout protecticn from dar. age to insulation. These areas are often flooded, and could pose a threat of shock hazard to workers if insulation were camaged."

!!. SLMPAQY OF ISSUE This concerr as evaluatec by TVA. TVA concluded that this was a concern involving 480 V temocrary construction cables at Watts Bar. They also concluded that no 480 V temporary construction cables exist at Sequoyah.

TVA has also perforced a walkdown at Secuoyah and found no unprotected elec-trical cables. TVA reviewed housekeeping procedures and the safety handbook and found that adequate persennel guidance was provided.

111. EVALUAT!0N hRC and its consultant, SAIC, reviewed the TVA employee concern report. The TVA report discussed a walkdown, employee safety guidance, and the use of unprotected cables laid around plant rooms. NRC reouested additional cetails of the TVA investigation. TVA addressed this request in the February 10, 1927, N:C.Tva werkir; rettir; in the 'VA Eethesda ef fices. TVA stated that a 100%

• ellco n restaied no erectec cables at Secuoyah. T'. A statec that all cerranent 420 V caties are contained in protected conduit. Maintenance procedures allow i

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for the terporary use of unprotected 480 V cables during the maintenance reriod cnly. TVA housekeeping procedures require that all construction cables te veroved prior to operation. TVA employee safety handbook addresses this  ;

ratter in a general fashion cautioning empicyees to exhibit extra care +. .ing censtructicn periods, hPC has verified TVA finding during an inspect 4;n conducted en March 23-27, 1987 (Inspection Report 50-327/87-20).

3 IV. CONCLUSION i Based on the informatien presented at the February 10. 1987, reeting and the l 1

NPC inscecticn. the NRC staff cencludes that the Watts Bar concern cces not l exist at Secucyah. Hence, this employee concern is considered to be satisfac-torily resolved for Secuoyah.

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