ML20080D001

Interim Deficiency Rept Re Class IE Hydrogen Analyzer Contaminated w/fission-fragment Iodine.Initially Reported on 830708.Change Order Issued to Comsip for Mod Kit to Upgrade Std Configuration Catalyst Bed

ML20080D001
Person / Time
Site:	Seabrook
Issue date:	01/16/1984
From:	Devincentis J PUBLIC SERVICE CO. OF NEW HAMPSHIRE, YANKEE ATOMIC ELECTRIC CO.
To:	Starostecki R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
SBN-614, NUDOCS 8402080400
Download: ML20080D001 (3)

Text

. .

sm m su m IplJBLIC SERVICE Companyof New Hampehre Enginoming Ohm 1671 Worcester Road Framinoham, Massachusetts 01701 (617)-872 8100 January 16, 1984 SBN- 614 T.F. Q2.2.2 United States Nuclear Regulatory Commission Region I 631 Park Avenue King of Prussia, PA 19406 Attention. Mr. Richard W. Starostecki, Director Division of Project and Resident Programs

References:

(a) Construction Permits CPPR-135 and CPPR-136, Docket Nos. 50-443 and 50-444 (b) Telecon of June 8,1983, D. A. Maidrand (YAEC) to H. Kister (NRC Region I)

(c) PSNH Letter, dated July 8,1983, " Interim 10CFR50.55(e)

Report; Class 1E Hydrogen Analyzer", J. DeVincentis to R. W. Starostecki

Subject:

Interim 10CFR50.55(e) Report; Class lE Hydrogen Analyzer

Dear Sir:

On July 8,1983, we teported a 10CFR50.55(e) deficiency [ Reference (c)],

l regarding Class 1E hydrogen analyzer catalyst contamination by l fission-fragment iodine. We committed to providing a status report by l Janua ry 20, 1984, if a final report had not been f f Led by that time.

l l A. Description of Deficiency Comsip Incorporated has indicated that the potential exists for Class lE hydrogen analyzer catalyst contamination by fission-fragment iodine which may be present in the containment atmosphere af ter LOCA.

l eMB88S88yh -

1 8 9

+ s 4

United States Nuclear Regulatory Commission January 16, 1984 Attention: Mr. Richard W. Starostecki, Director Page 2 B. . Analysis of Safety Implication The Class lE hydrogen analyzers are components of the Combustible Gas Control (CGC) System, and are used to monitor hydrogen concentration in the containment. The activation of the CGC System hydrogen recombiners and/or purge systems, etc., is based on the information obtained by the analyzers.

C. Corrective Action Taken In order to determine the exact nature of contamination, several calculations were made. The results of these calculations were inconclusive. ComsIp, therefore, initiated several tests to gather empirical data. Based on iodine partial pressure of 0.02 mm of Hg, Comsip tested two (2) catalyst bed configurations, the standard configuration which is in all systems shipped prior to April 1983 (Seabrook analyzer was shipped in November 1982), and a new configuration which significantly increases the path length and catalyst volume with the same overall dimensions. The new configuration showed no s?.gns of catalyst degradation af ter five (5) months of continuous testing.

Comsip recommended that the standard configuration catalyst bed be upgraded to the new configuration by a modification kit.

We have issued a change order to Comsip for the modification kits.

Delivery was made to the job-site on August 8,1983. We will monitor the progress of the installation of the modification kits, and will submit a final report to Region I upon verification that the installation of these kits has been completed, i

Ve ry t ruly yours ,

YANKEE ATOMIC ELECTRIC COMPANY j

J. DeVincentis Project Manager cc: Atomic Safety and Licensing Board Service List Director, Office of Inspection and Enforcement U.S. Nuclear Regulatory Commicsion Washington, DC 20555

e o s

William S. Jordan, III, Esquire Brentwood Board of Selectmen Harmon & Weiss RED Dalton Road 1725 I ' Street, N.W. Suite 505 Brentwood, New Hampshire 03833 Washington, DC 20006 Roy P. Lessy, Jr., Esquire Office of the Executive Legal Director Edward F. Meany U.S. Nuclear Regulatory Commission Designated Representative of Washington, DC 20555 ,

the Town of Rye 155 Waehington Road Robert A. Backus, Esquire Rye, NH 03870 116 Lowell Street P.O. Box 516 -

Calvin A. Canney Mancehster, NH 03105 City Manager City Hall Philip Ahrens, Esquire 126 Daniel Street Assistant Attorney General Portsmouth, NH 03801 Department of the Attorney General Augusta, ME 04333 Dana Bisbee, Esquire Assistant Attorney General Mr. John B. Tanzer Office of the Attorney General Designated Representative of 208 State House Annex the Town of Hampton Concord, NH 03842 5 Morningside Drive Hampton, NH 03842 Anne Verge, Chairperson Board of Selectmen Roberta C. Pevear Town Hall Designated Representative of South Hampton, NH 03842 the Town of Hampton Falls Drinkwater Road Patrick J. McKeon Hampton Falls, NH 03844 Selectmen's Office 10 Central Road Mrs. Sandra Gavutis Rye, NH 03870 Designated Representative of the Town of Kensington Carole F. Kagan, Esq.

RFD 1 Atomic Safety and Licensing Board Panel East Kingston, NH 03827 U.S. Nuclear Regulatory Commission Jo Ann Shotwell, Esquire Assistant Attorney General Mr. Angie Machiros Environmental Protection Bureau Chairman of the Board of Selectmen Department of the Attorney General Town of Newbury One Ashburton Place, 19th Floor Newbury, MA 01950 Boston, MA 02108 Town Manager's Office Senator Gordon J. Humphrey Town Hall - Friend Street U.S. Senate Amesbury, Ma. 01913 Washington, DC 20510 (Attn: Tom Burack) Senator Gordon J. Humphrey 1 Pillsbury Street Diana P. Randall Concord, NH 03301 70 Collins Street (Attn: Herb Boynton)

SEabrook, NH 03874 Richard E. Sullivan, Mayor Donald E. Chick City Hall Town Manager Newburyport, MA 01950 Town of Exeter 10 Front Street Exeter, NH 03833