ML20006E733
| ML20006E733 | |
| Person / Time | |
|---|---|
| Site: | Trojan File:Portland General Electric icon.png |
| Issue date: | 02/16/1990 |
| From: | PORTLAND GENERAL ELECTRIC CO. |
| To: | |
| Shared Package | |
| ML20006E728 | List: |
| References | |
| NUDOCS 9002260287 | |
| Download: ML20006E733 (4) | |
Text
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LCA 191-j Attachment B j
A Page 1 of 4
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Ij 3/a.0 ' APPLICABILITY SURVE1LLANCE'RE0VIREMENTS 4.0.1 Surveillance Requirements shall be applicable during the OPERA-pf fj#'C C T!ONAL MODES or other conditions specified for individual Limiting / Wh Conditions for Operation unless otherwise stated in an individual Surveillance Requirement, InScrt,1
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. 4.0.2 Each surveillance Requirement shall be performed within the
.specified time interval with:
a.
A maximum allowable extension not to exceed 25% of the sur-
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veillance interval, and
'A total maximum combined interva'l time for any 3 consecutive
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surveillance intervals not to. exceed 3.25 times the specified l
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surveillance interval.
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4.0.3 Performance of a Surveillance Rcquirement within the specified time interval shall constitute compliance with OPERABILITY requirements for a Limiting Condition for Operation and associated ACl!CN statements unless otherwise required by the specification. Surveillance Require-ments do not have to be performec on inoperable equipmelt.
4.0.4 Entry into an OPERATIONAL MODE or other specified applicability condition shall not be made unless the Surveillance Requirement (s)
Ji associated with the Limiting Condition for Operation have been performed-within the stated surveillance interval or as otherwise specified.
The provisions of Specification 4.0.4 are r.ot applicable to the perform-ance of surraillance activities associated with fire protection tech-nical specifications 4. 3. 3. 7.1, 4. 3.3. 7. 2, 4. 7. 8.1.1. 4. 7. 8.1. 2, 4.7.8.1.3, 4.7.8.3 and 4.7.9l untti the completion of the initial sur-veillance interval associated with each specification.
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4.0.5 Surveillance Requirements for inservice-inspection and testing of ASME Code Class 1, 2 and 3 components shall be applicable as follows:
a.
Inservice inspection of ASME Code Class 1, 2 and 3 compo-nents and inservice testing of ASME Code Class 1, 2 and 3 pumps and valves shall be performed in accordance with a
Section XI of the ASME Boiler and Pressure. Vessel Code
/. i" and applicable Addenda as required by 10 CFR 50, Sec-tion 50.55a(g), except where specific written relief has L
been granted by the Conrnission pursuant to 10 CFR 50, Section 50.55a(g)(6)(i).
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LCA 191.
F' Attachment B Page 2 of 4-INSERT-l' 4
4.0.2 -- Rach Surveillance Requirement shall be performed ~ within the specified surveillance interval with a maximum allowable extension not to
. exceed 25 percent of~the specified survalliance. Interval.
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LCA 191 Rttachment B Page 3 of 4 i ;l C
g APPLICA8ILITY sAsEs 4.0.1 This specification provides that surveillance activities necessary to insure the Limiting Conditions for Operation are met and will be performed'duMag the OPERATIONAL MODES or other conditions for which the Limiting Conditions for Operation are applicable. Provisions for additional surveillance activities to be performed without regard to the applicable OPERATIONAL MODES or other conditions are provided in the individual Surveillance Requirements.
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,[4.0.2 The provisions of this specification provide alloweble toler-ances for perfonring surveillance activities beyond those specified in the nominal surveillance interval. These tolerances are necessary to provide operational flexibility because of scheduling and performance l
considerations.
L The tolerance values, taken either individually or consecutively over 3 test intervals, are sufficiently restMetive to ensure that the L
reliability associated with the surveillance activity is not signifi-cantly degraded beyond that obtained from the nominal specified interval,
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4.0.3 The provisions of this specification set forth the criteH a L
for determination of compliance with the OPERA 8ILITY requirements of l,
the Limiting Conditions for Operation. Under this criteria, equipment, systems or components are assumed to be OPERA 8LE if the associated surveillance activities have been satisfactorily performed within the qf(*
p specified time interval. Nothing in this provision is to be construed,
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as defining equipment, systems or components OPERABLE, when such itens g'
s are found or known to be inoperable although still meeting the Surveillance Requirements.
pwy y 4.0.4 This specification ensures that the surveillarsee activities associated with a Limiting Condition for Operation have been performed within the specified time interval pHor to entry into an OPERATIONAL MODE or other applicable condition. The intant of this provision is to ensure that surveillance activities have been satisfactorily demonstrated on a current basis as required to meet the OPERABILITY requirements of the Limiting Condition for Operation.
Under the terms of this specification, for example, during initial I
plant startup or following extended plant outages, the applicable surveillance activities must be perfonned within the stated surveillance interval prior _ to placing or returning the system or equipment into OPERABLE status.
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l LCA 191 Attachment B.
page'4 of 4' E
INSERT 2 t
Specification'4.0.2 establishes the limit for Which the.specified time
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interval for Surveillance Requirements may be. extended.
It permits an allowable extension of the normal' surveillance' interval to facilitate surveillance scheduling,and' consideration of. plant' operating' conditions that may not~be suitable for conducting-the surveillance; e.g' transient conditions or other ongoing surveillance or maintenance activities.-. It-7
'also provides flexibility to= accommodate the' length of.a fuel cycle for surveillances-that are performed at each refueling outage and are specified with an;18-month survelliance interval.
It is not' intended that this provision be used repeatedly as.a convenience-to extend surveillance intervals beyond that-specified for surveillances that are not performed during-refueling outages.
The limitation of specifi-cation 4.'.2 is based onl engineering judgment and'the recognition'that O
the most probable result of any particular' surveillance being performed-is.the verification of-conformance with the Surveillance Requirements.
1This provision is. sufficient:to. ensure-that the reliability ensured
'through surveillance activities is not significantly degraded beyond that a
obtained from the specified surveillance interval.
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