ML19344D170
| ML19344D170 | |
| Person / Time | |
|---|---|
| Site: | Lynchburg Research Center |
| Issue date: | 02/01/1980 |
| From: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | Engelder T BABCOCK & WILCOX CO. |
| References | |
| NUDOCS 8003110464 | |
| Download: ML19344D170 (1) | |
Text
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UNITED STATES 8
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NUCLEAR REGULATORY COMMISSION O
,a REGION 11 O
6" 101 MARIETTA ST, N.W., SUITE 3100 ATLANTA, G E ORGIA 3C303
.....,o In Reply Refer To:
FEB 1 1980
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RIDJPO 0-13 50-99 I
Babcock and Wilcox Company Attn:
T. C. Engelder, Director Lynchburg Research Center Post Office Box 1260 Lynchburg, Virginia 24505 f
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, s
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Enclosures:
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IE Circular No. 80-02 2.
List of IE Circulars Recently Issued f
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SSINS No.: 6830 Accession No.:
UNITED STATES 7912190657
' NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT WASHINGTON, D.C.
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 time 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 fatigued they ignore more signals.
Inspections of personnel performance and training since the' accident at Three Mile Island, have shown that in certain situations facility personnel are either required 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 management 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 power plant staff. These procedures should establish a sound policy covering working hours for plant staff who perform safety related functions (e.g., senior reactor operators, reactor operators, health physicists, auxiliary operators, I&C technicians, key maintenance personnel, etc.),
Subcommittee 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 procedurer 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 applied to all personnel performing a safety related
' function:
1.
Scheduled work should be limited to the following maximum work hours:
a.
An individual should not be permitted 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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I IE Circular No. 80-02 February 1,1980 Page 2 of 2 b.
There should be at least a 12-hour break between all work periods.
An individual should not work more than 72-hours in any 7-day period.
c.
d.
An individual should not work more than 14 consecutive days without having 2 consecutive days off.
2.
In the event that special circumstances arise that require deviation from the above, such deviations should be authorized by the Station Manager with appropriate documentation of the cause.
Plants should be staffed and schedules developed to operate such that exceptions are not required.
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 assigned any task that affects core reactivity or could possibly endanger the safe operation of the plant.
No written response to this Circular is required.
If you desire additional information regarding this matter,' contact the Director of the appropriate NRC Regional Office.
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IE Circular No. 80-02 Enclosure February 1,1980 RECENTLY ISSUED IE CIRCULARS Circular Subject Date of Issued to No.
Issue 80-02 Nuclear Power Plant Staff 2/1/80 All holders of Reactor Work Hours OLs including research and test reactors, and cps 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 holders Assembly Interference of power reactor cps
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79-24 Proper Installation and 11/26/79 All Holders of a Power Calibration of Core Spray Power Reactor OL or CP Pipe Break Detection 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 e
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 9/10/79 All Holders of Power Target Rock Safety-Relief Reactor OLs and cps