ML19296C314
| ML19296C314 | |
| Person / Time | |
|---|---|
| Site: | General Atomics |
| Issue date: | 02/01/1980 |
| From: | Engelken R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| To: | Wellhouser H GENERAL ATOMICS (FORMERLY GA TECHNOLOGIES, INC./GENER |
| References | |
| NUDOCS 8002250559 | |
| Download: ML19296C314 (1) | |
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SUITE 202. WALNUT CREEK PLAZA WALNUT CREE K, CALIFORNI A 94596 February 1, 1980 Docket ilos. 50-163 & 50-89 General Atomic Company P. O. Box 81608 San Diego, California 92138 Attn: Mr. H. fl. Wellhouser, flanager riuclear Material Control Division Gentlemen:
The enclosed Circular 80-02 is forwarded to you for information.
If there are any questions related to your understanding of the suggested actions, please contact this office.
Sincerely, i, f.
CT ',
R. H. Engelken Director Enclosures :
1.
IE Circular i!o. 80-02 2.
List of IE Circulars Recently Issued 8002250 5 57 (
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UNITED STATES 7912190657 NUCLEAR REGULATORY C0!!1ISSION OFFICE OF INSDECTION AfD E!!FORCEttENT WASHINGTON, D.C.
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b February 1, 1980 oo IE Circular No. 80-02 flUCLEAR POWER PLANT STAFF WORK HOURS Description of Circunstances:
Studies indicate that with fatigue, especially because of loss of sleep, an individual's detection of visual signals deteriorates markedly, the tine it takes for a person to make a decision increases and more errors are made, and readino rates decrease.
Other studies show that fatique results in persornel ignoring some signals because they develop their own subjective standards as to what is important, and as they become more fatigued they ignore more signals.
Inspections of cersonnel perfornance and training since the accident at Three Mile Island, have shown that in certain situations facility personnel are either reouired or allowed to remain on duty for extended periods of time.
Also, conolaints have been received from some licensed nuclear power plant coerators concerning the number of continuous hours they have been on duty.
Licensee ranagerent is responsible for providing a sufficient number of trained personnel who are in the proper physical condition to operate and maintain the plant. Licensee ranagement should review their administrative procedures covering the working hours of nuclear nower plant staff. These procedures should establish a sound policy covering workinq hours for plant staff who perforn safety related functions (e.g., senior reactor operators, reactor operators, health physicists, auxiliary operators, I&C technicians, key maintenance pe sonnel, etc.)
Subcommittee ANS-3 is currently developing criteria to address the subject of coerator work hours. These guidelines will become a cart of ANSI N18.7. The NRC is also considering issuing requirements for administrative procedures that would control staff overtine.
Until either the ANSI Standard is issued and endorsed by NRC (via a Reculatory Guide) or separate requirements are issued by NRC, it is reconnended that the following quidance be used.
The guidance should be aoplied to all personnel performing a safety related function:
1.
Scheduled work should be linited to the following naxinun work hours:
a.
An individual should not be oermitted to work more than 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> straight.
IE Circular ?!o. 80-02 February 1, 1980 Page 2 of 2 b.
There should be at least a 12-hour break between all work periods, c.
An individual should not work nore than 72-hours in any 7-day period.
d.
An individual should not work nore than la consecutive days without havinq 2 consecutive days off.
2.
In the event that special circurstances arise that require deviation from the above, such deviations should be authorized by the Station ilanager with appropriate documentation of the cause.
Plants should be staffed and schedules developed to operate such that exceptions are not recuired.
3.
If an operator is required to work in excess of 12 continuous hours, his duties should be carefully selected.
It is preferable that he not be assioned any task that affects core reactivity or could possibly endanger the safe operation of the plant.
!!o written resoonse to this Circular is required.
If you desire additioral infornation regarding this natter, contact the Director of the aopropria;e f1RC Regional Office.
IE Circular No. 80-02 Enclosure February 1, 1980 RECENTLY ISSUED IE CIRCULARS Circular Subject Date of Issued to No.
Issue 80-01 Service Advice for GE 1/17/80 All licensees of Induction Disc Relays nuclear oower reactor operating facilities and holders of nuclear power reactor cps 79-25 Shock Arrestor Strut 12/20/79 All licensees and Assembly Interference holders of power reactor cps 79-24 Proper Installation and 11/26/79 All Holders of a Calibration of Core Spray Power Reacter CL or Pipe Break Detection CP Equipment on BWRs.
79-23 Motor Starters and 11/26/79 All Power Reactor and Contactors Failed Operating Facilities to Operate and Holders of Reactor cps 79-22 Stroke Times for Power 11/16/79 All Power Reactor Operated Relief Valves Operating Facilities and all Utilities having a CP 79-21 Prevention of Unplanned 10/19/79 All holders of Power Releases of Radioactivity Reactor OLs and cps 79-20 Failure of GTE Sylvania 9/24/79 All holders of Power Relay, Type PM, Bulletin Reactor OLs and cps 7305, Catalog SU12-11-AC with a 12V AC Coil 79-19 Loose Locking Devices 9/13/79 All Holders of Power on Ingersoll-Rand Pumps Reactor OLs and cps 79-18 Proper Installation of Target 9/10/79 All Holders of Power Rock Safety-Relief Valves Reactor OLs and cps 79-17 Contact Problen in SB-12 8/14/79 All Power Reactor Switches on General Electric Licensees with a CP Company Metalclad Circuit and/or OL Breakers