[Federal Register Volume 73, Number 180 (Tuesday, September 16, 2008)]
[Notices]
[Pages 53452-53453]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: E8-21562]


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NUCLEAR REGULATORY COMMISSION

[NRC-2008-0505]


``Project Plan--Fire-Induced Failure Modes and Effects Testing of 
Direct Current Driven Control Cables,'' Draft for Public Comment

AGENCY: Nuclear Regulatory Commission (NRC).

ACTION: Notice of availability of ``Project Plan--Fire-Induced Failure 
Modes and Effects Testing of Direct Current Driven Control Cables,'' 
and request for public comment.

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SUMMARY: The NRC is making the proposed draft test plan, ``Project 
Plan--Fire-Induced Failure Modes and Effects Testing of Direct Current 
Driven Control Cables,'' available for public comment.

DATES: Comments on this document should be submitted by Friday, October 
24, 2008. Comments received after that date will be considered to the 
extent practicable. To ensure efficient and complete comment 
resolution, comments should include section, page, and line numbers of 
the document to which the comment applies, if possible.

ADDRESSES: Comments will be made available to the public in their 
entirety; personal information, such as your name, address, telephone 
number, e-mail address, etc. will not be removed from your submission. 
You may submit comments by any one of the following methods:
    Federal e-Rulemaking Portal: Go to http://www.regulations.gov and 
search on the Docket ID for this action: [NRC-2008-0505].
    Mail comments to: Michael T. Lesar, Chief, Rulemaking, Directives, 
and Editing Branch, Office of Administration, Mail Stop: T-6D59, U.S. 
Nuclear Regulatory Commission, Washington, DC 20555-0001.
    Hand-deliver comments to: 11555 Rockville Pike, Rockville, MD 
20852, between the hours of 7:45 a.m. and 4:15 p.m., Federal workdays.
    You can access publicly available documents related to this notice 
using the following methods:
    Federal e-Rulemaking Portal: Documents related to this notice, 
including public comments, are accessible at http://www.regulations.gov, by searching on docket ID: [NRC-2008-0505].
    NRC's Public Document Room (PDR): The public may examine and have 
copied for a fee, publicly available documents at the NRC's PDR, Public 
File Area O-1F21, One White Flint North, 11555 Rockville Pike, 
Rockville, Maryland.

[[Page 53453]]

    NRC's Agencywide Documents Access and Management System (ADAMS): 
Publicly available documents created or received at the NRC are 
available electronically at the NRC's Electronic Reading Room at http://www.nrc.gov/reading-rm/adams.html. From this page, the public can gain 
entry into ADAMS, which provides text and image files of NRC's public 
documents. If you do not have access to ADAMS or if there are problems 
in accessing the documents located in ADAMS, contact the NRC's PDR 
reference staff at 1-800-397-4209, 301-415-4737, or by e-mail to 
<a href="/cdn-cgi/l/email-protection#86f6e2f4a8f4e3f5e9f3f4e5e3c6e8f4e5a8e1e9f0"><span class="__cf_email__" data-cfemail="116175633f6374627e64637274517f63723f767e67">[email protected]</span></a>. The proposed draft test plan ``Project Plan--
Fire-Induced Failure Modes and Effects Testing of Direct Current Driven 
Control Cables,'' is available electronically under ADAMS Accession 
Number ML082520518.

FOR FURTHER INFORMATION CONTACT: Gabriel Taylor, Fire Research Branch, 
Division of Risk Analysis, Office of Nuclear Regulatory Research, 
telephone (301) 415-3166, e-mail <a href="/cdn-cgi/l/email-protection#afc8cecdddc6cac381dbced6c3c0ddefc1ddcc81c8c0d9"><span class="__cf_email__" data-cfemail="dcbbbdbeaeb5b9b0f2a8bda5b0b3ae9cb2aebff2bbb3aa">[email protected]</span></a>.

SUPPLEMENTARY INFORMATION: There are several characteristics associated 
with DC control circuits that are unique as compared to AC control 
circuits. It is because of these unique characteristics that the 
extrapolation of the AC circuit test results to DC circuits introduces 
significant uncertainty. Cable failure modes and effects for DC control 
circuits may differ significantly from the corresponding behaviors in 
AC circuits. In order to assess behavioral differences and reduce 
analysis uncertainty, it is necessary to conduct tests using DC 
circuits.
    Previous fire-induced testing has focused on determining the 
failure characteristics of alternating current circuits, with only a 
limited amount of data on direct current (DC) circuits. The purpose of 
the Draft Test Plan entitled ``Draft Project Plan for Fire-Induced 
Failure Modes and Effects Testing of Direct Current Driven Control 
Circuit Cables,'' is to provide a structured plan for conducting a 
large number of circuit integrity tests to meet the objective of 
providing data on spurious actuations related to risk-significant DC 
circuits typically encountered in nuclear power plants.
    The NRC is seeking public comment in order to receive feedback from 
the widest range of interested parties and to ensure that all 
information relevant to developing this document is available to the 
NRC staff. This document is issued for comment only and is not intended 
for interim use. The NRC will review public comments received on the 
documents, incorporate suggested changes as necessary, and make the 
final test plan available to the public through ADAMS.

    Dated at Rockville, MD, this 10th day of September 2008.

    For the Nuclear Regulatory Commission.
Mark Henry Salley,
Chief, Fire Research Branch, Division of Risk Analysis, Office of 
Nuclear Regulatory Research.
[FR Doc. E8-21562 Filed 9-15-08; 8:45 am]
BILLING CODE 7590-01-P


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