ML20045D853

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Proposed TS Changes to Include Augmented Erosion/Corrosion Program for Piping in AFW Bldg & Related Piping
ML20045D853
Person / Time
Site: Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png
Issue date: 06/22/1993
From:
CONNECTICUT YANKEE ATOMIC POWER CO.
To:
Shared Package
ML20045D849 List:
References
NUDOCS 9306300132
Download: ML20045D853 (20)
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Text

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Docket'No. 50-213 B14448 Haddam Neck Plant Proposed Revision to Technical Specifications (Marked-Up Version) 1 June 1993 9306300132 930622 PDR ADOCK 05000213 P

PDR l

1 APR 2 61990 APPLICABILITY SURVEILLANCE REOUIREFNTS (Continued) c.

The provisiens of Specification 4.0.2 are applicable to the above required frequencies for performing it. service inspection and testing activities; i

d.

Performance of the above inservice inspection and testing-activities shall be in addition to other specified Surveillance Requirements; and Nothing in the ASME Boiler and Pressure Vessel Code shall be e.

construed to supersede the requirements of any Technical gsGdg,]

Specificatien.

O jVbt 4.0.6 flite augmented inservice inspection program at each weld identified in Table 4.0-1 and 4.0-2 shall be performed as follows in accordance with.the applicable requiremer.:s of the ASME Section XI Code, specified in Specifir tion 4.0.5.

a.

First Ten-Year Inspection Procram 1.

Nondestructive examination of each weld identifie in Tables 4.0-1 and 4.0-2 for the first three consecutive /-1/3 year inspections. These insgections may be adjustel to coincide with t e scheduled regular ASME Section XI~ ~ spections.

2.

A montnly visual examination for eviden of leakage of areas j

identified in Tables 4.0-1 and 4.0-2.

b.

Successive Inservice Inspection Procras 1.

If no indications are detected - the indications do not exceec the allowable standar of the ASME Section XI Code durin: inspections specifi in 2.0.6.a.1, subsequent inspections will be limit d to o ce during eacn 10-year inspection interval. g If incications ar etted that exceed the allowable standa-ds of tty @e'd 2.

E Section XI code, they shall be investigat evaluated and tre frequency cf examinatior for that we hall revert to Spscification 4.0.6.a.1.

Consis:ep[with paragraph 4.0.6.t.1, visual examinations of 3.

areas Mentified in Tables 4.0-1 and 4.0-2 will be performed semi.nually.

c.

Repair 4. Re-exantination, and Tests t

R airs, re-examination, and piping pressure tests shall be onducted in acc.ordance with ASME Section XI.

r ho /W

()lbL' 3/4 o-3 l

e INSERT A 4.0.6.

An augmented and modified erosion /carrosion inspection program shall be performed on the following subset of piping:

1)

Piping inside the structure that contains the Auxiliary Feedwater pumps (Terry Turbines),

2) the s:eam piping from the non-return valves (MS-NRV-18,28,38, and
45) in te structure above the Terry Turbine building to the Terry Turbines and to the Atmospheric Steam Dum; Valve (MS-HICV-1201).

Tnis prcgram is limited to piping that is gret:er than one inch nominal size and contains water / steam with operating conditions of 275 psig cr greate 2nd/or operating temperatures of 200 F or greater.

Tne augnented inspections shall be consistent with erosion / corrosion inspectico methodology with selection and pe-formance of inspections on locations based on the ranking of susceptibilig to erosion / corrosion. wear, with the following additional information considered in the selection, process:

Applicable lines with dry steam shall be inspected Applicable low usage lines shall be ingected.

A minimum of 5 susceptible componens/ locations shall be inspected ea-h refueling outage.

Inspections will be conduct > ' to the ex:ent practical within the licitations of design and geometry.

An example is the encapsulition sleeves on the steam line and feedwater line elbows inside the Terry Tubine structure.

These will not be removed to perform inipections.

\\

l

June 1991

.I TABLE 4.0-1

~

AUGMENTED INSERVICE INSPECTION PROGRAM Break Pipe Number

. Method of ExaminatTo/

System location

  • Location Details Size of' Wolds. Component Description n

Main Steam X2 Terry Turbine Room 24" 12 Branch Connection Wolds Volumetri, Visual Main Steam X3 Above Ierry Turbine Room 24" 8

Pipe-to-Elbow Welds

. Vol tric and Viao!

Main Steam X4 Above Terry Turbine Room 24" 4

Pipe-to-Inlet NRV Weld Volumetric and Visual Main Steam X5 Above Terry Turbine Room 24" 8

Pipe-to-Outlet N3,

Volumetric and Visual Inint Trip Vn v6 Wolds Main Steam X6 Above Terry Turbine Room 24" 4

Pipe-to-ip Valve Welds. Volumetric and Visual Feedwater X2 Above Terry Turbine Room 12" 7

P e-to-Elbow Welds

. Volumetric and Visual l Feedwater X3 Above Service Building 12" 4

Welded Attachment Surface ** and Visual i

.. (b' v

i

  • As describe n the May 1, 1975 supplement to the CYAPCO Special Report on high energy pipe break, dated Februar

, 1975.

    • A rface Examination in accordance with ASME Code Section XI will be performed in place:of Volumetric

/ xamination for Feedwater Break Location X3. The geometry of this Welded Attachment ' precludes Volumetric

/

Examination.

g f(,y 3h' 0 '

PR 2 f Egj&,

t.

TABLE 4.0-2_

i WELD LOCATIONS ON STEAM SUPPLY LINES TO AUXILIARY FEEDWATER PUMPS lj i!

l:

Location

  • Description Size finches)

Method of Inspecti f

1 Pipo to Valvo MS-NRV-38 3"

Volumot ric, Si o and Visual

.(

2 Pipe to Reducer 3"

Volume

c. Surface and Visual l

k 3

Pipe to Reducer

'3" e umetric, Surface and Visual f

4 Stub-in 2-1/2" - SA-601-2 2 1/2" Volumetric, Surface and Visual 5

Pipe to Valve MS-NRV-48 3"

Volumetric, Surface and Visual.

6 Stub-in 3" - S0llV-601-4.

Volumetric, Surface and Visual 7

Pipe to Elbow 4"

Volumetric, Surface and Visual b

h a

Pipe to Libow

.f4 4"

Volumetric, Surface.an'd Visual o.

9 Pipe to Elbow 4"

Volumetric, Surface and Visual 10 Elbow to 4"

Volumetric, Surface and Vi~sual 11 Reduc r to Pipe 3"

Volumetric, Surface and Visual 12 ipe to Pipe L3" Volumetric, Surface and Visual.

13 Pipe to Elbow 3"

Volumetric, Surface and Visual 14 Pipe to Elbow 3"

Volumetric, Surface and Visual 15 Pipe to Elbow 3"

Volumetric, Surface and Visual l

16 Pipe to Elbow 3"

Volumetric, Surface and Visual 17_

Pipe to Valve MS CV-1304 3"

Volumetric, Surface and Visual la Valve MS-CV-1304 to, Pipe 3"

Volumetric, Surface and Visual

  • See figure 4.0-1

-.R2hjg*h TABLE 4.0-2

cy WELD L0 CATIONS ON STEAM SUPPLY LINES TO AUXILIARY FEEDWATER PUMPS E

i*i Location

  • Description Size (inches)

Method of Inspection 9

19 Elbow to Valve MS-V-12010 3"

Volumetric, Surface and tsual 1

20 Valve to Pipe 3"

Volumetric, Surfa and Visual D

21 Pipe to Elbow 3"

Volumetric, rface and Visual b

?2 Elbow to Pipe 3"

Volum ic, Surface and Visual 23 Pipo to Ellmw 3"

d umetric, Surface and' Visual 24 Elbow to Pipo 3"

Volumetric, Surface and Visual w

25 Pipe to Tee 3"

Volumetric, Surface and Visual D

26 Ice to Valve MS-V-1201A

.f4 3"

Volumetric, Surface and Visual o

m 27 Tee to 1/2" Pup Piece fv 3"

Volumetric, Surface and Visual PupPiecetoSlipopFNnge 28 3"

Surface and Visual 29 Valve MS-NRV-18 Pipe 3"

Volumetric, Surface and Visual

{

30 Pipeto/d-Cap 4"

Volumetric, ' Surface and Visual h

31 Stub in 3" SDilV-601-1 3"

Volumetric, Surface and Visual a

32 Pipe to Pipe 4"

Volumetric, Surface and Visual 5

33 Valvo MLimV-?n lo Pipo 3"

Volumetric, Surface and Visual

=

7 4

Stub-in 3" SDilV-601-2 3"

Volumetric, Surface and Visual 35 Pipe to Elbow 4"

Volumetric, Surface and Visual t

36 Litmw to l'Ipe 4"

Volumetric, Surface and Visual 4

  • See Figure 4.0-1

b5

$6lb3Q TABLE 4.0-2 f

WELD LOCATIONS _0N_ STEAM SUPPLLLINESl0_ AUX.ILIARY_EEEDWATER_P_ UMP _S

/

2 Method of Inspectior[

location

  • Description Size finches) 37 Pipe to Elbow 4"

Volumetric, Surfa e Visual 38 Pipe to Elbow 4"

Volumetric, rface and Visual O

39 Pipe to Tee (B.W.)

4" Volum c, Surface and Visual 7

40 B. W. Tee to Valve MS-CV-1302 4"

umetric, Surface and Visual s

41

11. W. Tee to 3" SA-601-28 3"

Volumetric, Surface and Visual 42 Valve MS-CV-1302 to Pipe 4"

Volumetric; Surface and Visual 43 Pipe to Pipe 4"

Volumetric, Surface and Visual w

44 Pipe to Elbow 4"

Volumetric, Surface and Visual 45 Libow to Pipe 4"

Volumetric, Surface and Visual Pipe to Reduce /

46 4"

Volumotric, Surface and Visual 47 Reducer o Valve MS-V-1201A 3"

Surface and Visual y

  • See Figure 4.0-1

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3 4 0-8l i

W ndment No. 125 HADDW NTm-l

.s APR 2 61990 j

4 3/4.0 AP:LICABILITY BASES (Co 't)

Under the provisions of this specification, the applicable Surveillance i

i Requirements must be perfonned within the specified surveillance interval to i

ensure that the Limiting Conditions for Operation are met during initial u

plant sta-tup or following a plant outage.

When a sh:tdown is required to comply with ACTION requirements, the

?

provistor.s of Specification 4.0.4 de not apply because this would delay placing ue facility in a lower MODE of operation.

Specification 4.0.5 establishes the requirement that inservice inspection cf ASME Code Class 1, 2, and 3 componer.ts and inservice testing cf ASME Code Class 1, 2, and 3 pumps and valves shall be perfcmed in accordance with a periodically updated version of Section XI of the ASME Boiler and Pressure Vessel Ccde and Addenda as required by 10CFR50.55a. These requirement,s apply except when relief has been provided in writing by the Commission.

This specification includes a clarification of the frequencies for performirg the inservice inspection and testing activities required by Section II of the ASME Boiler and Pressure Vessel Code and applicable Addenda. This clarification is provided to ensure consistency in surveillance intervals throughout the Technical Specifications and to remose any ambipities relative to the fre:uencies for performing the required inservice inspection and testing activities.

Under the terms of this specification, the more restrictive requirements of the Techrical Specifications take precedence over the ASME Boiler and Pressure Vessel Code a.d applicable Addenda. The requirements of Specifications 4.0.4 to perform suneillance activities before entry into an OPERATIOuL M3DE or other specified condition takes precedence over the ASwE Boiler aid Pressure Vessel Code provision which allows pumps and valves to be teste: up to one week after return to normal cperation.

Tne Technical l

Specification definition of OPERABLE does not allow a grace period before a l

componen:, that is not capable of performing its specified fu.ction, is declarec inoperable ar,d takes precedence over the ASME Boiler and Pressure Vessel C:de provision which allows a valve to be incapable of performing i:s specifie: function for up to 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> before being declared inoperable.

Soecification a.O.6

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'. y ste-t with the guidance contained in NRC. Mechanical Engineering Br s

Tec Ro tion No. 4, dated March 18, 1975,-an inservice ins on program is in t ed at potenial high energy pipe break

. ions at whic.

conseque:ces of a pos.

ed pipe rupture "could' the plant's safe shutdowr. capability and at thods of pi raint are considered to :e impracti:al.

This au;mented insp ogram'will provide a means for timely ostection of cracks pro ang e piping.

Since the Haddam Ne:k Plant was built prior t ption cf the ASM for ISI, there is not

. for inspection in accordance specific complete accessi requirems that code.

Inspections will be conducte

+ e extent.

pra o within the limitations of design, geomstry, and materi f the

~

omponer.:s.

Visual irspections will be conducted for all areas ident ei in Tables 4.0-1 and 4.0-2.

b 8 3/T.0 -(o

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-.- - i

APR 2 61990

References:

1.

YAPCO.Special Report "High Energy Pipe Break de nment," dated February 5,1975, as s -

emented on Cont (h I3, 975, April 4,1975, and Ma

, 1975.

Marc 2.

E. J. Mroczka le.

to C. I mes, dated De.cember 5, 1986,

Subject:

Envi al Qualification of Equipment Outside Containment Er.ergy Line Breaks.

i 3.

F. J. Mira letter to E. J. Mro dated January 27, 1

Subject:

Augmented Inservice ection and l

ution of Environmental Qualification a b

l nergy Line Break Issues.

l l

1 l

l l

i l

[

Ol0f B 3/4.0-7 Amendment No. 125 Han.iw utr8

INSERT B l

The erosion / corrosion program manual specifies and considers all l

susceptible system piping, including the piping inside the structure that l

contains the Auxiliary Feedwater pumps (Terry Turbines).

However, some piping is normally excluded from inspections due to usage and steam conditions, since these lines are not considered susceptible to erosion / corrosion.

To reduce the probability that the Auxiliary Feedwater system will be impacted by a IIigh Energy Line Break inside the Terry Turbine buildings l

an augmented and modified erosion corrosion program has been developed specifically for high energy lines that support the Terry Turbines and would not otherwise be inspected using the existing criteria.

l These lines include both the h:gh energy lines physically located in the Terry Turbine building and the steam piping from the non-return valves (MS-NRV-18,28,38, and 48) in the structure above the Te-rry Turbines structure to the Terry Turbine and to the Atmospheric Steam Dump Valve (MS-IIICV-1201).

The lines include.d in this augmented and modified erosion / corrosion program are based on the Giambusso criteria for definition of high energy lines.

Specifically this augmented and modified erosion / corrosion program will include piping greater than one inch in diameter, with temperature limits of 200 F or greater and/or pressures of 275 psig or greater,

i

.s Docket No. 50-213 B14448

- 4

i C

Haddam Neck Plant-Proposed Revision Lto. Technical Specifications (Retyped Version)

I I

- i

- 1

-l 1

l i

1 l

1 i

I i

]

June 1993 i

i l

i

__,c.

. c.

m_

,,,. ~....

4

.s APPLICABILITY SVR1EILLANCE RE0UIREMENTS (Continued) c.

The provisions of Specification 4.0.2 are applicable to the above required frequencies for performing inservice inspection and testing activities; d.

Performance-of the above inservice inspection and testing activities shall be in addition to other specified Surveillance Requirements; and e.

Nothing in the ASME Boiler and Pressure Vessel Code shall be construed to supersede the requirements of any Technical Specification.

4.0.6 An augmented and modified erosion / corrosion inspection program shall. be performed on the following subset of piping:

1) Piping inside the structure that contains the Auxiliary Feedwater pumps (Terry Turbines), 2) the steam piping from the nonreturn valves -(MS-NRV-18, 28, 38, and 48) in the _ structure above the Terry Turbine building to the Terry _ Turbines'and to the Atmospheric Steam Dump Valve (MS-HICV-1201). This program is limited to piping that is greater than one inch nominal size and contains water / steam with operating conditions of 275 psig or greater and/or operating temperatures of 200F or greater.

The augmented inspections shall be consistent with erosion / corrosion inspection methodology with selection and performance of inspections on locations based on the ranking of susceptibility to erosion / corrosion wear, with the following additional information considered in the selection process:

Applicable lines with dry steam shall be inspected.

i Applicable low usage lines shall be inspected.

A minimum of 5 susceptible components / locations shall.be inspected each refueling outage.

Inspections will be conducted to the extent practical within the limitations of design and geometry. An example is the encapsulation sleeves on the steam line and feedwater line elbows inside the Terry Turbine structure. These will not be removed sto perform inspections.

HADDAM NECK 3/4 0-3 Amendment No.

0164

~

^

TABLE 4.0-1 AUGMENTED INSERVICE INSPECTION PROGRAM 05

8 E

This page has been deleted 2

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a an

^

TABLE 4.0-2

=g WELD LOCATIONS ON STEAM SUPPLY LINES TO AUXILIARY FEEDWATER PUMPS

8y This page has been deleted.

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TABLE 4.0-2

?

i ag-WELD LOCATIONS ON STEAM SUPPLY LINES TO AUXILIARY FEEDWATER PUMPS a

.ay 1

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WELD LOCATIONS ON STEAM SUPPLY LINES TO AUXILIARY FEEDWATER PUMPS oz

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Figure 4.0-1 TERRY TURBINE BUILDING 1

This page has been deleted HADDAM NECK 3/4 0-8 Amendment No. JEE, 0164 L

\\

l 3/4.0 APPLICABILITY BASES (Con't) 1 Under the provisions of this specification, the applicable Surveillance Requirements must be performed within the specified surveillance interval to ensure that the Limiting Conditions for Operation are met during initial i

l plant startup or following a plant outage.

When a shutdown is required to comply with ACTION requirements, the provisior.s of Specification 4.0.4 do not apply because this would delay placing the facility in a lower MODE of operation.

Specification 4.0.5 establishes the requirement that inservice inspection of l

ASME Code Class 1, 2, and 3. components and inservice testing of ASME Code l

Class 1, 2, and 3 pumps and valves shall be performed in accordance with a periodically updated version of Section XI of the ASME Boiler and Pressure Vessel Code and Addenda as' required by 10CFR50.55a.

These requirements apply except when relief has been provided in writing by the Commission.

This specification includes a

clarification of the frequencies for l

performing the inservice inspection and testing activities required by Section XI of the ASME Boiler and Pressure Vessel Code and applicable l

Addenda.

This clarification is provided to ensure consistency in surveillance intervals throughout the Technical Specifications and to remove any ambiguities relative to the frequencies for performing' the required inservice inspection and testing activities.

Under the terms of this specification, the more restrictive requirements of the Technical Specifications take precedence over. the ASME Boiler and i

Pressure Vessel Code and applicable Addenda.

The requirements of Specifications 4.0.4 to perform surveillance activities before entry into an OPERATIONAL MODE or other specified condition takes precedence over the ASME Boiler and Pressure Vessel Code provision which allows pumps and valves to be tested up to one week after return to normal operation.

The Technical Specification definition of OPERABLE does not. allow a grace period-before a component, that is not capable of performing its specified function, is declared inoperable and takes precedence over the ASME Boiler.and Pressure l

Vessel Code provision which allows a valve to be incapable of performing its j

specified function for up to 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> before being declared inoperable.

l Specification 4.0.6 The erosion / corrosion program manual. specifies and considers all susceptible system piping, including the piping inside the structure that contains the

-1 i

Auxiliary Feedwater pumps (Terry Turbines).

However, some piping is. normally excluded from inspections due to usage and steam conditions, since these lines l

are not considered susceptible to erosion / corrosion.

l i

HADDAM NECK B3/4 0-6 Amendment No.

0165 l

9 4

h 3/4.0 APPLICABILITY

)

BASES (Con't)

To reduce the probability that the Auxiliary Feedwater system will be impacted by a High Energy Line Break inside the Terry Turbine buildings an augmented and modified erosion corrosion program has been developed specifically for high cnergy lines that support the Terry Turbines and would not otherwise be inspected using the existing criteria.

I These lines include both the high energy lines physically located in the Terry Turbine building and -the steam piping from the nonreturn valves (MS-NRV-18, 28, 38, and 48) in the structure above the Terry Turbines structure to the Terry Turbine and to the Atmospheric Steam Dump Valve (MS-HICV-1201).

The lines included in this augmented and modified erosion / corrosion program are I

based on the Giambusso criteria for definition of high energy lines.

Specifically, this augmented and modified erosion / corrosion program will include piping greater than one inch in diameter, with temperature limits of 200F or greater and/or pressures of 275 psig or greater.

l t

i HADDAM NECK B3/4 0-6a Amendment No.

0165

.

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