ML20058E291
| ML20058E291 | |
| Person / Time | |
|---|---|
| Site: | Clinton  |
| Issue date: | 07/23/1982 |
| From: | Wuller G ILLINOIS POWER CO. |
| To: | Bernard H Office of Nuclear Reactor Regulation |
| References | |
| L30-82(7-23)L, U-0523, U-523, NUDOCS 8207280142 | |
| Download: ML20058E291 (3) | |
Text
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a U-0523 ILLINDIS POWER 00MPANY L30-82(7-23)L IP 500 SOUTH 27TH STREET, DECATUR, ILLINOIS 62525 July 23, 1982 Mr. Harold Bernard, Acting Chief Standardization & Special Projects Branch Division of Licensing Office of Nuclear. Reactor Regulations U. S. Nuclear Regulatory Commission Washington, D.
C.
20555
Dear Mr. Bernard:
Reference:
IP Letter, G. E. Wuller to J. R. Miller, U-0475, dated April 20, 1982 Clinton Power Station Unit 1 Docket No. 50-461 Safety Evaluation Report Supplemental Fire Detection Information On May 28, 1982, T. L. Spry (IP), J. S. Steele, and J. P.
Steiner (S&L), John Stang (NRC, Chemical Engineering Branch) discussed briefly by telephone some of the information contained in the referenced letter.
Mr. Stang indicated that the infor-mation was inadequate in regards to the Underwriter Laboratory (UL) listing for the fire protection annunicator in panel P840 in the control room and he requested more information as to the conformance of our P840 annunciator to UL 864-1980 (Standard for Control Units for Fire Protective Signaling Systems).
The attachment to this letter provides the requested infor-mation.
Please review it as soon as possible and contact me if additional information is required.
l Sincerely,
/
G. E. Wuller Supervisor - Licensing l
Nuclear Station Engineering TLS/GEW/j a Attachment i
l cc:
J. H. Williams, NRC Clinton Project Manager John Stang, NRC CEB H. H. Livermore, NRC Resident Inspector Illinois Department of Nuclear Safety i
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U-0523 L30-82(7-23)L Attachment Page 1 Main Control Room Fire Protection Annuciator UL Listing An engineering evaluation was conducted to ascertain the con-formance of the P840 annunciator to the applicable portions of UL 864-1980 (Standard for Control Units for Fire Protective Signaling Systems).
The evaluation:. covered the five main parts of the UL Standard
" General" (Sections 1 through 3 of the standard), " Construction" (Sections 6 through 25), " Performance" (Sections 26 through 43), " Markings and Instructions" (Sections 46 through 48) and " Multiplex Systems" (Sections 49 through 52).
The results of the engineering evaluation are as follows:
A.
General The annuciator meets the intent of the " General" requirements covered in the UL standard with the exception of the following paragraphs which are not applicable to the annuciator:
3.6 3.14 3.7 3.25 3.8 3.26 3.9 3.30 3.10 3.34 3.13 5.1 B.
Construction The annuciator meets the intent of the "Contruction" requirements covered in the UL standard with thu exception of the following paragraphs which are not applicable to it:
6.1 6.26 14.11 18.2 6.3 8.2 15.2 20.1 1
6.4 8.4 15.3 21.1 l
6.5 8.5 15.6 22.2 l
6.6 8.6 15.7 22.3 6.11 9.3 15.11 22.4 6.12 9. '4 15.12 23.1 6.15 10.2 16.1 23.2 6.16 10.4 16.2 23.3 6.17 11.7 16.4 23.4 6.18 12.2 16.11 24.3 6.19 14.o 16.13 24.4 6.20 14.7 1C.14 24.5 6.21 14.8 16.15 25.3 6.22 14.9 17.2 25.4 6.23 14.10 17.3
U-0523 L30-82(7-23)L Attachment Page 2 C.
Performance The " Performance" part of the UL standard requires a substantial number of tests.
Although the annunciator has not undergone all of these tests, there is a sub-stantial level of confidence that the annunciator could pass the tests.
This is due to the following:
1.
As confirmed by the annunciator manufacturer, the annunciator meets the requirements of the following standards:
IEEE 383 - Type Test for Class 1E Electric Cables, Splices and Connections for Nuclear Power Stations IEEE 472 - Surge Withstand Test CSA C22.2 - Process Control Equipment 2.
At the factory, the annunciator is tested in accordance with NEMA 109 - High Potential Dielectric Test.
The annuciator is also checked functionally and visually to see that it operates properly under all intended modes of operation.
3.
At the jobsite the annuciator is acceptance tested where it is functionally and visually checked to see that it operates properly under all intended modes of operation.
The ac-ceptance testing is done both before and after the field wiring is connected.
s D.
Markings and Instructions The annuciator meets the intent of the " Markings and Instrt:ctions" requirements covered in the UL standard.
E.
Multiplex Systems The " Multiplex Systems" requirements of the UL standard are not considered to be applicable to the annunciator since it does not utilize multiplexing.
Based upon the engineering evaluation and discussions with the annuciator manufacturer, it is our opinion and that of the an-nunciator manufacturer, that the annunciator does meet the intent of UL Standard 864-1980.
.I