ML19296C347
| ML19296C347 | |
| Person / Time | |
|---|---|
| Site: | 05000139 |
| Issue date: | 02/01/1980 |
| From: | Engelken R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| To: | Carlson D WASHINGTON, UNIV. OF, SEATTLE, WA |
| References | |
| NUDOCS 8002250634 | |
| Download: ML19296C347 (1) | |
Text
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UNITED STATES 8 '{),,
NUCLEAR REGULATORY COMMISSION G.g}C ;
cj REGION V o (P4 a
1990 N. CALIFORNI A BOULEVARD g%, ' b" SUITE 202 WALNUT CREEK PLAZA WALNUT CREEK, CALIFORNIA 94596 February 1,1980 Docket No. 50-139 University of Washington Seattle, Washington 98105 Attn:
Dr. Dale Carlson 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,
, h. /
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)
R. H. Engelken Director Enclosures :
1.
IE Circular No. 80-02 2.
List of IE Circulars Recently Issued 800 2 25 0 c'3 +
d SSI!!S No. : 6830 Accession flo. :
UNITED STATES 7912190657 WCLEAR REGULATORY C0!1'11SSION OFFICE OF INSDECTION AND ENFORCE!!ENT c2 WASHINGTON, D.C.
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- m. S February 1, 1980 IE Circular No. 80-02 NUCLEAR POWER PLANT STAFF WORK HOURS Descriptic.1 of Circunstances:
Studies indicate that with fatigue, especially t'ecause 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 readina rates decrease.
Other studies show that fatique results in personnel ignoring some signals because they develop their own subjective standards as to what is important, and as they become more fatiaued they ignore more signals.
Inspections of cersonnel perfornance and training since the accident at Three Mile Island, have shown that in certain situatiens facility oersonnel are either recuired or allowed to remain on duty for extended periods of time.
Also, corplaints have been received fron sone licensed nuclear powtr plant operators concerning the number of continuous hours thej 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 ranagerent should review their adninistrative procedures covering the working hours of nuclear nower plant staff. These procedures should establish a sound policy covering workina hours for olant staff who perforn safety related functions (e.g., senior reactor operators, reactor operators, health physicists, auxiliary operators, I&C technicians, key maintenance personnel, etc.)
Subcormittee ANS-3 is currently developing criteria to address the subject of operate work hours. These guidelines will become a cart of ANSI N18.7. The NRC is also considering issuing requirements for adninistrative 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 f!RC, it is recomended 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 nore than 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> straight.
IE Circular No. 80-02 February 1, 1980 Pace 2 of 2 b.
There should t'e at least a 12-hour bceak 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 havinq 2 consecutive days off.
2.
In the event that soecial circurstances arise that require deviation from the above, such deviations should be authorized by the Station flanager with appropriate documentation 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 preferab'e 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 NR; Regional Office.
~
a IE Circular t!o. 80-02 Enclosure February 1, 1980 RECEilTLY ISSUED IE CIRCULARS Circular Subject Date of Issued to fio.
Issue 80-01 Service Advice for GE 1/17/80 All licensees of Induction Disc Relays nuclear power reactor operatirg 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 P,elief 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 lacking Devices 9/13/79 All Holders of Power on Ingersoll-P.and 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 Problem in SB-12 8/14/79 All ower Reactor Switches on General Electric Litansees with a CP Company Metalclad Circuit and/or OL Breakers