ML20008F975
| ML20008F975 | |
| Person / Time | |
|---|---|
| Site: | Allens Creek File:Houston Lighting and Power Company icon.png |
| Issue date: | 05/11/1981 |
| From: | Harrison G Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20008F949 | List: |
| References | |
| NUDOCS 8105120424 | |
| Download: ML20008F975 (4) | |
Text
r 05/11/81
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UNITED STATES OF AMERICA NUCLEAR REGULATORY C0&lISSION BEFORE THE ATOMIC SAFETY AND LICENSING SOARD In the Matter of
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HOUSTON LIGHTING AND POWER C0:1?ANY )
Docket No. 50-456
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(Allens Creek Nuclear Generating
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Station, Unit 1)
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HRC STAFF SUPPLEMENTAL TESTIMONY OF GREGORY A. HARRISON REGARDING CABLE FIRES
[TEXPIRG Contention 12]
Q.
Please state your name and position with the NRC.
A, liy nane is Gregory A. Harrison.
I aa a Fire Protection Engineer in the Chemical Engineering Branch of the Division of Engineering. A statenent of py professional qualifications is attached.
Q.
What is the purpose of this testinony?
A.
The purpose of qy testinony is to respond to TEXPIRG Contention 12 which alleges that:
Electrical wiring for the ACNGS is susceptible te fast flaning, and potential resulting coanon node failures, in the event of an internal flash fire.
A fire protection research test conducted by tne Underwriters Laboratory for the Connission, whicn the staff forwarded on October 30, 1978 to the Board and to tnose on the service list, indicated that nodifications to certain of the staff's fire protection criteria nay be necessary.
Q.
Since the fire protection research test referenced in the contention was conducted, has the Coanission adopted new fire protectiol criteria?
8105120 Lyll{
.. t A.
Yes. _09 October 27, 1980, the Comission approved a rule-concerning fire protection, 10 C.F.R. 9 50.48. The rule and its Appendix-(10 C.F.R. Part 50, Appendix-R) were developed to establisn'the ainimum acceptable fire protection requirecents necessary to resolve certain areas of concern which had not yet been resolved between the Staff and
'icensees of plants operating' prior to January 1,1979. Further, the Comission took action to have all near tere operating license plants comply with Appendix R.
That regulation requires a coaplete fire protection codification needed to satisfy Branch Technical Position.
9.5-1, " Fire Protection Progran."
Q.
Will :ne Allens Creek Applicant be reouired to meet Appendix R to 10 C.F.R. Part 507 A.
Yes.
Q.
To ensure that electrical wiring for ACNGS is not susceptible to fast flaming and result in comon code failures in safety systens, what will De required of tne Applicant?
A.
The Applicant is required to conduct a fire hazard analysis to confim tnat redundant safety related systen cables and other systen cables tnat are associated with the shutdown system cables are separated frcri each otner by walls having a three-hour fire rating or equivalent protection so that botn safety trains are not subject to damage from a single fire hazard. The Applicant can also show that an alternate ceans for safe shutdo,:n is provided. Tne Staff's acceptance criteria for fire protection to assure safe shutdown capability is outlined in Section III.G of Appendix R to 10 C.F.R. Part 50.
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. I
'Q.
Does this acceptance criteria give a fire resistant rating credit for cables that passed IEEE-333 -tests for flame retardant properties?
A.
fio.
In fact, the Staff assumes a worse case fire for all areas
-of the plant and assumes that all cables in a counon fill area are susceptible to burning and/or fire damage. As indicated above, under-the requirenents of Appendix R, the Applicant will be required to show that redundant safety.related systen cables and other system cables associated with shutdown are separated or have equivalent fire protection in order' to maintain safe shutdown capability.
Q.
What do you conclude regarding this contention?
A.
Since the Allens Creek fire protection program will be required to conforn to all the requirements of Appendix R to 10 C.F.R. Part 50, I conclude that the problem of 'ast flaming in electrical wires resulting in common mode failures will also be resolved when the fire protection progran is approved.
Gregory A. Harrison PROFESSIONAL QUALIFICATIONS I an employed as a Fire Protection Engineer in the Chenical Engineering Branch, Division of Engineering, Nuclear Regulatory Commission, Bethesda, Maryland.
Education B.S. Fire Protection Engineering, University of Maryland 1966; ti.S.
Civil Engineering, University of flaryland 1970; and fl.S. Engineering Administration, George Washington 1979.
I have received a certificate from Oak Ridge University covering the Radiation Safety Training Program.
In addition, I hold professional engineering registrations in California and Maryland in fire protection and civil engineering.
Experience I joined the USNRC in August, 1977 as a fire protection engineer.
In this capacity I have performed inspections of power reactors during the construction stage to ascertain conformity with fire protection criteria; evaluated the adequacy of licensees' fire protection programs and its relation to the safety of operations.
Finally, I have prepared fire protection SERs for both BWR and PWR plants.
Prior to joining the Commission I worked two years for the Arabian American Oil Company (ARAMC0) in Dhahram, Saudi Arabia.
I held the position of Chief, Fire Protection Engineer for the Facilities Engineering Division.
Fron January,1973, to July,1975, I worked for the National Bureau of Standards in Gaitnersburg, Maryland as fire protection engineer in fire research testing.
From July,1969, to January,1973, I worked as a general engineer with the Naval Ship Engineering Center, Washington, D.C.
From May,1967, to July,1969, I worked as a fire protection engineer for NASA at Goddard Space Flight Center, Greenbelt, liaryland.