Information Notice 1985-64, Bbc Brown Boveri Low-Voltage K-Line Circuit Breakers, with Deficient Overcurrent Trip Devices Models OD-4 and 5

Bbc Brown Boveri Low-Voltage K-Line Circuit Breakers, with Deficient Overcurrent Trip Devices Models OD-4 and 5

ML031180227
Person / Time
Site:	Beaver Valley, Millstone, Hatch, Monticello, Calvert Cliffs, Dresden, Davis Besse, Peach Bottom, Browns Ferry, Salem, Oconee, Mcguire, Nine Mile Point, Palisades, Palo Verde, Perry, Indian Point, Fermi, Kewaunee, Catawba, Harris, Wolf Creek, Saint Lucie, Point Beach, Oyster Creek, Watts Bar, Hope Creek, Grand Gulf, Cooper, Sequoyah, Byron, Pilgrim, Arkansas Nuclear, Three Mile Island, Braidwood, Susquehanna, Summer, Prairie Island, Columbia, Seabrook, Brunswick, Surry, Limerick, North Anna, Turkey Point, River Bend, Vermont Yankee, Crystal River, Haddam Neck, Ginna, Diablo Canyon, Callaway, Vogtle, Waterford, Duane Arnold, Farley, Robinson, Clinton, South Texas, San Onofre, Cook, Comanche Peak, Yankee Rowe, Maine Yankee, Quad Cities, La Crosse, Big Rock Point, Rancho Seco, Zion, Midland, Bellefonte, Fort Calhoun, FitzPatrick, McGuire, LaSalle, 05000000, Zimmer, Fort Saint Vrain, Shoreham, Satsop, Trojan, Atlantic Nuclear Power Plant, Skagit, Marble Hill
Issue date:	07/26/1985
From:	Jordan E NRC/IE
To:
References
IN-85-064, NUDOCS 8507240242
Download: ML031180227 (4)

SSINS No. 6835 IN 85-64 UNITED STATES

NUCLEAR REGULATORY COMMISSION

OFFICE OF INSPECTION AND ENFORCEMENT

WASHINGTON, D.C. 20555 July 26, 1985 IE INFORMATION NOTICE NO. 85-64: BBC BROWN BOVERI LOW-VOLTAGE K-LINE CIRCUIT

BREAKERS, WITH DEFICIENT OVERCURRENT TRIP

DEVICES MODELS OD-4 AND 5

Addressees

All nuclear power reactor facilities holding an operating license (OL) or a

construction permit (CP).

Purpose

This information notice is to alert licensees that BBC Brown Boveri low-voltage

K-line circuit breakers with overcurrent trip device models OD-4 and OD-5 may

have been manufactured with an incorrect short time delay band lever (link).

It is expected that licensees will review the information for applicability

to their facilities and consider actions, if appropriate, to preclude the

use of the defective overcurrent trip devices. However, suggestions contained

in this information notice do not constitute NRC requirements; therefore, no

specific action or written response is required.

Description of Circumstances

On May 13, 1985, BBC Brown Boveri Inc. (BBC) made a 10 CFR Part 21 report to

the NRC concerning a deficiency in the Models OD-4 and OD-5 overcurrent trip

devices installed on K-line circuit breakers. The affected breakers were

manufactured by BBC from October 1983 to March 1985 and may have incorrect

short time delay band levers (links) installed in electromechanical overcurrent

trip device models OD-4 and OD-5. The incorrect link could limit the travel of

the short time armature and cause the short time element to be inoperative in

the maximum (MAX) band.

Discussion:

The May 13, 1985, 10 CFR Part 21 report from BBC recommended that all K-line

circuit breakers with the OD-4 and OD-5 overcurrent trip devices and any

spare OD-4 and OD-5 overcurrent trip devices that were manufactured between

October 1983 and March 1985, be inspected for an incorrect short time delay

8507240242

IN 85-64 July 26, 1985 band link. Licensees known by BBC to have purchased K-line breakers or

spare OD-4 or OD-5 overcurrent trip devices were notified of the possible

defect and instructions provided for their inspection. Enclosed is a list

of utilities and related facilities that were notified by BBC. However, BBC

advised the NRC that there is a possibility that other utilities could be

using K-line circuit breakers with the suspect OD-4 and OD-5 overcurrent trip

devices. Therefore, all licensees are being notified of this possible defect.

For facilities not on the list and using BBC K-line circuit breakers with OD-4 and OD-5 overcurrent trip devices that were purchased between October 1983 and

March 1985, it is suggested that BBC Brown Boveri Switchgear Products Group

be contacted for information on performing the inspections and corrective

action.

No specific action or written response is required by this notice. If you have

any questions regarding this notice, please contact the Regional Administrator

of the appropriate NRC regional office or this office.

ward L. Jorda/, Director

Division of Emergency Prepare ess

and Engineering Response

__ Office of Inspection and Enforcement

L. B. Parker, IE

(301) 492-7190

Enclosures:

1. Utilities/Facilities Notified by BBC Brown Boveri

2. List of Recently Issued IE Information Notices

Attachment 1 IN 85-64 July 26, 1985 Utilities/Facilities Notified by BBC Brown Boveri

1. Public Service of New Hampshire/Seabrook

2. Philadelphia Electric/Peach Bottom

3. Niagara Mohawk/Nine Mile Point 2

4. Duquesne Light/Beaver Valley

5. Cleveland Electric Illuminating/Perry

6. Gulf States Utilities/River Bend

7. Carolina Power and Light/Brunswick

8. Virginia Electric Power/Surry

9. Florida Power and Light/St. Lucie

10. Arkansas Power & Light/Arkansas Nuclear One

11. Georgia Power/Vogtle

12. Commonwealth Edison/no plant identified

13. Long Island Lighting/no plant identified

14. Kansas City Power & Light/no plant identified

15. Florida Power Corporation/no plant identified

Attachment 2 IN 85-64 July 26, 1985 LIST OF RECENTLY ISSUED

IE INFORMATION NOTICES

Information Date of

Notice No.. Subject Issue Issued to

85-63 Potential for Common-Mode 7/25/85 All power reactor

Failure of Standby Gas Treat- facilities holding

ment System on Loss of Off- an OL or CP

Site Power

85-62 Backup Telephone Numbers to 7/23/85 All power reactor

the NRC Operations Center facilities holding

an OL and certain

fuel facilities

85-61 Misadministrations to Patients 7/22/85 All power reactor

Undergoing Thyroid Scans facilities holding

an OL and certain

fuel facilities

85-60 Defective Negative Pressure 7/17/85 All power reactor

Air-Purifying, Fuel Facepiece facilities holding

Respirators an OL or CP

85-59 Valve Stem Corrosion Failures 7/17/85 All power reactor

facilities holding

an OL or CP.

85-58 Failure Of A General Electric 7/17/85 All power reactor

Type AK-2-25 Reactor Trip facilities designed

Breaker by B&W and CE holding

an OL or CP

85-57 Lost Iridium-192 Source 7/16/85 All power reactor

Resulting In The Death Of facilities holding

Eight Persons In Morocco an OL or CP; fuel

facilities; and

material licensees

85-56 Inadequate Environment 7/15/85 All power reactor

Control For Components And facilities holding

Systems In Extended Storage an OL or CP

Or Layup J.

85-55 Revised Emergency Exercise 7/15/85 All power reactor

Frequency Rule facilities holding

an OL or CP

OL = Operating License

CP = Construction Permit