ML19354D934
| ML19354D934 | |
| Person / Time | |
|---|---|
| Site: | Trojan File:Portland General Electric icon.png |
| Issue date: | 01/17/1990 |
| From: | Cockfield D PORTLAND GENERAL ELECTRIC CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9001250035 | |
| Download: ML19354D934 (6) | |
Text
.
M M
W W M M COf142rly David W. Cockfield Vice President, Nuclear January 17, 1990 Trojan Nuclear Plant Docket 50-344 License NPF-1 U.S. Nuclear Regulatory Comission l
Attn: Document Control Desk j
Washington DC 20555
Dear Sir:
1 i
Inservice Inspection (ISI) Relief Requests l
Reauest for Additional Information By letter dated September 29, 1989 Portland General Electric Company (PGE) j submitted Revision 1 to Topical. Report PCE-1049, " Trojan Nuclear Plant l
Inservice Inspection Program Second Ten-Year Interval", to the Nuclear i
l Regulatory Comission (NRC) for review. By telephone call on December 18, 1989. Mr. Roby Bevan requested that full-size piping and instrument diagrams (P& ids) be provided as an aid in the re/ low of relief requests contained in the revised ISI program.
The enclosed P& ids are highlighted to indicate the particular portions of piping for which relief is requested from the hydrostatic test requirements of American Society of Mechanical Engineers (ASME),Section XI.
Sincerely, i
M
/
Enclosures et Mr. John B. Martin Regional Administrator, Region V L
U.S. Nuclear Regulatory Commission (w/o enclosures) fb-Mr. David Stewart-Smith o
State of Oregon O@
Department of Energy 00 (w/o enclosures)
'f oo Mr. R. C. Barr gg NRC Resident Inspector N
Trojan Nuclear Plant
/;
(w/o enclosures) oo e.Q. 0 121 S W Sawon Sveet Port:and. Oregan 97204
- j 1
i S E.I N am m a st 3R 33'?
1 1
Component Descriotion:
(1) Reacter Coolant System (RCS) (M-201).
I (a) Reactor coolant loop flow meter elbow taps free flow I
transmitters FT-414
-415. -416
-424..-425
-426
-434
-435..
j
-436. -444
-445, and -446.
j (b) Reactor coolant loop resistance temperature detector (RTD) system vent and drain lines (3/4-in. RC-2501R-17).
1 (c) RTD system return instrument lines for flow indicator switches i
FIS-417. -427. -437, and -447.
l (d) Reactor coolant loop sampling lines from Loop 1 to manually operated globe valve SS648 and from Loop 3 to manually operated globe valve SS649 (3/4-inch RC-2501R-30 and CCB-2).
(e) Reactor vessel inner, and outer seal monitoring tube piping to manually operated globe valves 8069A and 80698 (3/4-inch t
RC-2501R-15),
j (f) Pressurizer spray control valve bypass lines (3/4-inch RC-2501R-4).
(g) Pressurizer instrument lines for level transmitters-LT-459
- 460
-461, and -462 and pressure transmitters PI'-455..- -456
-457. -458. -467A. and 4678.
(h) Pressurizer steam sampling line from the p essurizer power-operated relief valve piping to manually erl-rated globe valves 8078 and 8094 (3/4-inch RC-2501R-29).
(i) Pressutizer liquid sampling line from the pressuriser to manually operated globe valve 8080 (3/4-inch RC-2501R-29).
(j) Pressurizer safety valve seal water drain lines to manually operated globe valve 8093 (3/4-inch RC-2501R-29).
(2) Chemical and Volume control Systems (N-202. M-203).
)
(a) -Reactor coolant pump (RCp) seal bypass lines from flow orifices FO-1957
-1958
-1959, and -1960 to air-operated globe valve CV-8142 (3/4-inch CS-2501R-28).
(b) RCp seal leakoff lines from the RCP to ~ air-operated = globe valves CV-8141A CV-81418 CV-8141C.
and CV-8141D (2-inch CS-2501R-28).
+
10-18 e
,r+.
,w,,,
y-.
--.we-
--9-'*
18-
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MEF'.M hjees{&amind)
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(c) RCP seal injection and seal bypass vent and drain lines from the Class 1 piping to manually operated globe valves 8363A.
83638, 8363C. 8363D 8364A 19,48, 8364C, and 8364D.
1 (d) 3-inch CS-2501R-5 between 83788 and CV-8146, (e). 3-inch CS-2501R-4 between 8393 and 3-inch CS-2501R-5.
i (f) 3-inch CS-2501R-6 between 83798 and CV-81A7.
i (g) 2-inch CS-2501R-28 between 8352A.B.C.D and 8350A.B.C.D.
l (3) Residual Heat Removal System (RNR) (M-205).
RHR instrument sensing lines for pressure transmitters PT-403 and -405.
(4) Safety Injection System (SI) (M-206).
~
(a) Accumu1ator discharge test line connections (3/4-inch SI-2501R-22) from the Class 1 piping to air-operated globe valves CV-8877A.
CV-8879A.
.CV-88778 CV-88798
.CV-8877C.
CV-8879C. CV-8877D, and CV-88790.
(b) Boron injection tank' T-207 discharge to the RCS cold-less test line connections (1-inch SI-2501R-23) from the Class 1 piping k
to air-operated globe valve CV-8882.
+
(c) SIS pumps P-203A and P-2038 discharge to the RCS loops hot-less test line connection (3/4-inch SI-2501R-22) from Class 1 piping to air-operated globe valves CV-8809A. CV-88898. CV-8889C. and CV-8809D.
ASMI Code Class:
ASME KI Class 2 - All Hydrostatic and. Pressure Testing..
ASME KI Examination Reeuirements:
t Subsection IWC. Table C-H.
Item No C7.40 requires that the system hydrostatic test pressure shall.be -at least 1.10 times the system pressure. P for systems - with design temperature of 200*F or Lloss, sy, and at least 1.25 times the system pressure. Pov, for ' systems. with design temperature above 200*F.
The system pressure. Psv. shall be the lowest pressure setting-among the number of safety or relief valves provided for overpressure protection within the boundary of the system to be tested.
For systems (or portions of systems) not provided with safety l.
or relief valves, the system design pressure.
P.
shall be substituted d
for P sy.
10-19 L
n
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,.-..-..c
-,, =,.,.
n,.-.,
MLEW M.B-833 continued)y Basis for Relief:
Request relief from the hydrostatic testing requirements of Class 2 piping that cannot be isolated f rom Class 1 pipin5 The subject lines are Class 2 penetrations into a Class 1 pressure boundary without an isolation valve or other means for isolatin5 the Class 2 system from the Class 1 system for hydrostatic testing.
Alternative Examination:
Visual examination for. evidence of leakage will be conducted on the identified portions of these systems at hydrostatic test pressures in accordance with the requirements of IWB-5222 for the adjoining class 1 systems.
10-20
.......