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Federal Regulations, Codes, &
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ASME |
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Introduction Prepared By: Ron Lippy Company: True North Consulting Meeting Dates: December 2 - 5, 2003 Meeting Location: Meeting Notes General Requirements (ISTA) ·
ROM-03-06—Editorials/changes
to ISTA completed and submitted for Balloting to MC. ·
V-03-06a—Definition
of Repair/Replacement related to pump and valves—Closed, no change to
existing Code. ·
V-03-07—Proposed
ISTE requirements for SOVs to include/exclude wording to verify design bases
of SOVs.—Determined to be excluded from OM Code. ·
Discussion
on “pre-conditioning” on whether to address in the Code (again).—Stay tuned. IST Valves (ISTC) ·
V-02-01—Rapid
Acting valve criteria for SOVs/AOVs to be evaluated as to the possibility of
either increasing the 2 second limit or somehow modifying the Code
requirements to allow a “relaxed” rapid acting valve acceptance
criteria.—Determined by the Sub-group to “leave-as-is”. No Code changes to be initiated at this
time. Sufficient guidance exists. Most of the concerns identified by the
industry were of the following: o
Valve
was determined to be in a “degraded” or “degrading” condition. o
Valve
reference values were incorrectly evaluated regarding rapid acting valve
criteria. o
Valves
were incorrectly incorporated as “rapid acting valves”. ·
MOVs
(OM-8) o
Discussion
on OMN-1 Code Case, Rev.1 to be out for balloting to Main Committee ~March
2004. Significant technical changes
have occurred including scoping and methodology of testing as well as
frequency of exercising, for certain MOVs. o
Significant
comments on ISTE regarding adequacy of methodology for testing certain LSSC
MOVs in the risk informed arena. o
Code
Case OMN-1 inquiry: “Is it the intent of ASME Code Case OMN-1,
paragraph 3.6.1, to verify that each motor operated valve assembly tested
under the scope of ISTA has been exercised on a frequency not to exceed once
every 18 months for a plant with an 18 month fuel cycle or, 24 months for a
plant with a 24 month fuel cycle, instead of during a refueling cycle?” Proposed Reply: No Action: This is being treated
as an “intent inquiry” and a change is being made to OMN-1 Code Case stating
that the intent for exercising the MOV under the Code Case is a “period of
time” (i.e. 12 months, 18 months, or 24 months,), rather than an “event”
related frequency of required exercising. ·
AOVs
(OM-19) o
Code
Case for AOVs (OMN-12), is being turned into a Mandatory Appendix. §
Scope
Increase Ø Mitigate consequences of a transient Ø Causes Reactor Trip or Turbine rollback Ø Important to plant operation Ø Maintain Integrity of RCPB Ø In addition to the typical IST scope
requirements §
Once
Appendix is invoked for an AOV, ALL remaining AOVs/HOVs must eventually be
incorporated into the Appendix. ·
Safety
and Relief Valves (Appendix I) o
Change
definition of “ambient temperature” to “temperature range”. o
Change
definition of “normal system operating conditions” to include “temperature
range”. ·
Check
Valves (OM-22) o
Working
on possible Code change to allow D&I during operations rather than
refueling outages. o
Revisions
to Appendix II to allow previous history info to be used to establish CV
condition and, to not require “full stroke exercise” open of CV. Pumps (ISTB) ·
P03-02—Evaluate
definition of “pump design flow”.
Redefined the “pump design flow” to state that “a flow rate which is
at a relatively high flow point on the pump curve where relatively small
changes in the flow rate results in a relatively large change in differential
pressure.” ·
P03-03—Evaluate
allowing the performance of a Group A pump test Quarterly (meeting the
definition of “pump design flow”, as stated in P03-02 above), in lieu of a
Comprehensive Pump Test. Concerns
exist to the differences between the Group A and the CPT (i.e., pressure
instrumentation tolerance, acceptance criteria and reference point). ·
P03-05—Reformat
of ISTB for usability by separating the Inservice testing requirements from
the preservice testing requirements. ·
ROM
01-20 withdrawn—This change was to allow the re-establishment of pump
operability by the allowance of mini-recirc testing. Several new ROMs were created to address
the various pump issues that were to be addressed under ROM 01-20,
(non-instrumented mini-recirc tests, PMT, CPT and Group A reference point
establishment, acceptance criteria for CPT and Group A, definition of “pump
design flow”, reformatting of ISTB). ·
ROM
01-21 (Ballot 03-087)—Changes made to ISTB-1200 to clarify the “flexible
coupling” as an exclusion. 1 negative to
essentially define the “rigid coupling” rather than the “flexible
coupling”. SCOMC is sending ballot for
2nd consideration with no changes. Snubbers/Supports (ISTD) ·
Code
Cases for extension of exam frequency and test frequency are being submitted
for approval Diesel Generators ·
New
proposal to develop a standard or Appendix for testing DGs is progressing Risk Informed (ISTE) ·
ROM
00-09—Incorporate RIIST into OM Code dropped.
Entirely new ROM being submitted.
Significant changes being made addressing comments regarding testing
methods and frequency as well as acceptance criteria for HSSC and LSSC
components. ·
Change
in ISTE Project Management ·
Major
concerns associated with ISTE which need to be addressed o
Scoping o
Test
Methods o
Test
Frequency o
Appears
to be at too high of a level with little or no guidance as to how to meet
requirements associated with LSSC and HSSC components. Standards/Guides ·
New
standard is being developed to provide LSSC testing guidance for RI-IST
programs for the RISC-3 category (LSSC). NRC ·
Draft
rule for 50.69—Comments received and being evaluated/incorporated. Due to be issued ~6/04. ·
Draft
final rule for 50.55a endorsing up to the 2003 addenda of Section III, XI,
and the OM Code to be issued for comment ~1/04. Should issue Final Rule for 50.55a ~9/04. ·
RI-ISI
method for addressing weld exams/components for BER (Break Exclusions
Regions), the EPRI method has been approved and the WOG method should be
approved soon. ·
NUREG
1482 revision working. Due to complete
end of 2004??? ·
New
revision to RG 1.147, 1.192 and 1.193 should be drafted and out for public
comment ~2/04. Will address/endorse
OMN Code Cases thru OMN-13. ·
Generic
Communications issued since last meeting affecting IST o
IEB
2003-01, Potential Impact of Debris Blockage on Emergency Sump Recirculation
at PWRs o
GL
2003-01, Control Room Habitability o
IN
2003-17, Reduced Service Life of ASCO solenoid valves with Buna-n material. ·
Symposium
July 12-14, 2004 in OM Code meeting July 14-16, 2004
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