ML19296C341
| ML19296C341 | |
| Person / Time | |
|---|---|
| Site: | Berkeley Research Reactor |
| Issue date: | 02/01/1980 |
| From: | Engelken R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| To: | Schrock V CALIFORNIA, UNIV. OF, BERKELEY, CA |
| References | |
| NUDOCS 8002250621 | |
| Download: ML19296C341 (1) | |
Text
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SUITE 202, WALNUT CREEK PLAZA WALNUT CREE K, CALIFORNI A 94596 February 1,1980 Docket flo. 50-224 University of California Department of fluclear Engineering Berkeley, California 94720 Attn: Virgil Schrock Reactor Administrator 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, O
R. H. Engelken Director Enclosures :
1.
IE Circular No. 80-02 2.
List of IE Circulars Recently Issued 8002250
SSINS No.: 6830 Accession No.:
UNITED STATES 7912190657 NUCLEAR REGULATORY C0", MISSION OFFICE OF IfiSOECTION AfD ENFORCE'1ENT f, D'94 c'
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20555 February 1, 1980 IE Circular No. 80-02 NUCLEAR POWER PLANT STAFF WORK HOURS Description of Circumstances:
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 reading rates decrease.
Other studies show that fatigue results in personnel ignoring some signals because they develop their own subjective standards as to what is important, and as they become more fatiqued they ignore more signals.
Inspections of cersonnel performance and training since the accident at Three Mile Island, have shown that in certain situations facility oersonnel are either reouired or allowed to remain on duty for extended periods of time.
Also, complaints have been received from some licensed nuclear power plant operators concerning the number of continuous hours they have been on duty.
Licensee managerent is responsible for providing a sufficient number of trained personnel who are in the proper physical condition to operate and maintain the plant. Licensee management should review their administrative procedures covering the working hours of nuclear nower plant staff. These procedures should establish a sound policy covering workina hours for olant staff who perform safety related functions (e.g., senior reactor operators, reactor operators, health physicists, auxiliary operators, I&C technicians, key maintenance personnel, etc.)
Subconmittee ANS-3 is currently developing criteria to address the subject of operator work hours. These guidelines will become a part of ANSI N18.7. The NRC is also considering issuing requirements for administrative procedures that would control staff overtime. Until either the ANSI Standard is issued and endorsed by NRC (via a Regulatory Guide) or separate requirements are issued by NRC, it is recommended that the following guidance be used. The guidance should be aoplied to all personnel nerforming a safety related function:
1.
Scheduled work should be linited to the following maxinum work hours:
a.
An individual should not be nermitted 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.
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IE Circular No. 80-02 February 1, 1980 Pace 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 14 consecutive days without havina 2 consecutive days off.
2.
In the event that special circunstances arise that require deviation from the above, such deviations should be authorized by the Station Manager with approoriate document.ation of the cause.
Plants should be staffed and schedules developed to operate such that exceptions are not reouired.
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.
No written resoonse to this Circular is required.
If you desire additional inforration regarding this natter, contact the Director of the aopropriate f4RC Regional Office.
I
IE Circular tie. 80-02 Enclosur :
February 1, 1980 RECEf1TLY ISSUED IE CIRCULARS t.ircular Subject Date of Issued to
?!o.
Issue 80-01 Service Advice for GE 1/17/80 All licensees of Induction Disc Relays nuclear power 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 OL 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 Problera in SB-12 8/14/79 All Power Reactor Switches on General Electric Licensees with a CP Company Metalclad Circuit and/or OL Breakers