ML20197C253

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Leakage Reduction Program Summary Rept for RHR Sys - (E1100)
ML20197C253
Person / Time
Site: Fermi DTE Energy icon.png
Issue date: 10/10/1986
From: Shiffel B
DETROIT EDISON CO.
To:
Shared Package
ML20197C232 List:
References
E1100-86-01, E1100-86-1, NUDOCS 8611060018
Download: ML20197C253 (8)


Text

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LEAKAGE REDUCTION PROGRAM

SUMMARY

REPORT FOR RESIDUAL HEAT REMOVAL (RHR) SYSTEM - (E1100)

DETROIT EDISON COMPANY FERMI-2 POWER PLANT REPORT NO.

E1100-86-01 4

1 9

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~ISI P'fograms M1pervisor Approved By:

/4//e/P(,

Plarit Manager f

8611060018 861103 PDR ADOCK 0500 1

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LEAKAGE REDUCTIOI9 PROGRAM REPORT FOR RESIDUAL HEAT REMOVAL SYSTEM - (E1100)

INTRODUCTION: Both the Fermi-2 Technical Specifications, paragraph 6.8.4.a.2, and the Fermi-2 FSAR, Section H.III.D.l.1, require that leakage from systems outside primary containment that could or would contain highly radioactive fluids, be reduced and maintained to as-low-as-practical levels.

To demonstrate the leak tight integrity of the Residual Heat Removal System, a system leakage test is conducted once per reactor refueling (approximately once every 18 months).

This report is for the initial leakage test.

REFERENCES:

1) Dwg. No. 6M721-5706-1 " Residual Heat Removal (RHR)

Division II - Functional Operating Sketch".

2) Dwg. No. 6M721-5712-1 " Fuel Pool Cooling and Cleanup System - Functional Operating Sketch".
3) Dwg. No. 6M721-5739-2 " Hydrogen Recombiner System -

Functional Operating Sketch".

4) Dwg. No. 6M721-5725 " Post Accident Sampling System -

Functional Operating Sketch".

5) Dwg. No. 6M721-5706-2 " Residual Heat Removal (RHR)

Division I - Functional Operating Sketch".

6) Procedure No. 43.204.01, " Residual Heat Removal Division I Leakage Monitoring Test" (A copy of this procedure is on file at the plant).
7) Procedure No. 43.204.02, " Residual Heat Removal Division II Leakage Monitoring Test" (A copy of this procedure is on file at the plant).

TEST DESCRIPTION: Division I and Division II of the Residual Heat Removal System are lined up and tested in each of the four modes of operations (LPCI testing flow mode, Torus cooling mode, Torus spray mode and Shutdown cooling mode).

During ecch mode of operation an inspection for leakage is performed while the system is at normal operating pressure.

TEST

SUMMARY

a DIVISION - I Total Leakage for this system is within the acceptable limits defined for this system.

Total leakage for this system from all components within the test boundary was:

175 Drops /

Minute Total.

Page 1

LEAKAGE REDUCTION PROGRAM REPORT FOR Residual Heat Removal TEST RESULTS

SUMMARY

- DIVISION II: Ell-F025B Flange gasket was replaced and the leakage stopped. The Total leakage for the system from all components was reduced to 363 drops / min total.

After replacement of the gasket the total leakage for I

this system is within the acceptable limits defined for this I

system.

ACCEPTANCE CRITERIA: The general leakage criteria to be applied during the first fuel cycle as the basis for instituting corrective action in the form of corrective maintenance shall as stated below.

Per the EF-2 FSAR, this leakage criteria will be further evaluated at the end of the first refueling cycle to determine the long range leakage reduction program criteria.

This will allow experience gained during the initial fuel cycle to be factored into the long range criteria.

Residual Heat Removal Division I 350 drops / minute Residual Heat Removal Division II 550 drops / minute l

Page 2

LEAKAGE REDUCTION PROGRAM REPORT FOR 4

RESIDUAL HEAT REMOVAL TEST RESULTS: Residual Heat Removal Division I final leakage results from procedure: 43.204.01.

Procedure 43.204.01 (Completed 08-16-85)

Examination Point /

Location Leakage Detected Description Yes No RHR Pump (s) Suction Piping from Suppression Pool. ISO.

No. M-3154-1.

Ell-F004A EL 542' X

C-15 Ell-F004C EL 542' X

C-13 Ell-F030A EL 544' X

C-15 RHR Pump (s) Suction Piping from RPV. ISO. No. M-3152-1 Ell-F006A EL 544 X

C-17 Ell-F006C EL 544 X

RHR Pump (s) Suction Piping X

ISO. No. M-3154-1 and M-3180-1 RHR Pump (s) Seals, Leak-off)

X and Drains. ISO. No. M-2734-1 RHR Pump (s) Discharge and Min.

Flow Piping. ISO. No. M-3157-1, M-3178-1 and M-3180-1.

Ell-F031A EL 547 X

C-15 Ell-F072C EL 544 X

C-15 RHR Instrument Rack - H21-P018 Ell-N015A EL 570' X

C-13 RHR Hx Inlet Piping. ISO. No.

X M-3158-1.

l Page 3

LEAKAGE REDUCTIOM PROGRAM REPORT FOR Residual Heat Removal (E1100)

Division I Examination Point /

Location Leakage Detected Description Yes No RHR Hx Bypass Piping. ISO. No.

M-3146-1 and M-3158-1.

l Ell-F048A EL 590' X

C-17 RHR Hx Shell Side Integrity:

X Flanges and Drains. ISO. No.

M-4097-1.

RHR Hx Outlet Piping. ISO.

No. M-3146-1 and M-4011-1.

Ell-F003A EL 617' X

C-17 Ell-F084A EL 615' X

C-17 Ell-F085A EL 615' X

C-17 l

l RHR Discharge Piping. ISO.

X No. M-3146-1.

RHR Test / Torus Cooling and Misc. Tie Ins. ISO. No.

M-3160-1, M-3178-1, M-4011-1, M-4059-1 and M-4612-2. RHR Torus Spray Piping. ISO No.

M-3160-1.

Ell-F007A EL 578' X

C-13 Ell-F028A EL 578' X

B-13 LPCI Discharge and Cross-Tie Piping. ISO. No. M-3146-1 Keep Fill Check Valve. ISO.

No. M-4598-1.

Ell-F611A EL 570' X

A-13 LPCI Injection Piping. ISO.

X No. M-2298-1 and M-3146-1.

Drywell Spray Piping ISO. No.

X M-3159-1.

Page 4

LEAKAGE REDUCTION PROGRAM REPORT FOR Residual Heat Removal (E1100)

Division II TEST RESULTS: Residual Heat Removal Division II final leakage results from procedure: 43.204.02.

Procedure 43.204.02 (Completed 08-02-85)

Examination Point /

Location Leakage Detected Description Yes No RHR Pump (s) Suction Piping X

from Suppression Pool.

ISO. No. M-3152-1 RHR Pump (s) Suction Piping from RPV. ISO. No. M-3152-1 and M-3181-1.

Ell-F006B EL 546' X

C-9 Ell-F006D EL 546' X

5 A-ll RHR Pump (s) Suction Piping.

ISO. No. 3153-1 and M-3181-1.

Ell-F071B EL 540' X

C-10 RHR Pump (s) Seals, Leak-off(s)

X and Drains. ISO. No. M-2734-1.

I RHR Pump (s) Discharge and Min.

Flow Piping. ISO. No. M-3177-1, M-3179-1 and M-3181-1.

Ell-F034B EL 545' X

C-ll Ell-F034D EL 545' X

l C-ll Ell-F072D EL 540' X

C-10 RHR Instrument Racks - H21-P021 X

and H21-P548.

RHR Hx Inlet Piping. ISO. No.

X M-3158-1.

Page 5

LERKAGE REDUCTION PROGRAM REPORT FOR Residual Heat Removal (E1100)

Division II Examination Point /

Location Leakage Detected Description Yes No RHR Hx Bypass Piping-ISO. No.

M-3151-1 and M-3158-1.

Ell-F048B EL 606' X

C-9 RHR Hx Shell Side Integrity:

X Flanges and Drains. ISO. No.

M-4097-1.

RHR Hx Outlet Piping. ISO.

No. M-3151-1, M-3184-1 and M-40ll-1.

Ell-F078 EL 585' X

C-10 RHR Hx Discharge and Heat-up /

Flush Piping. ISO. No. M-3151-1, M-3161-1 and M-3166-1.

Ell-F025B EL 576' X

C-10 Ell-F026B EL 575 X

C-9 RHR Test / Torus Cooling and Misc.

Tie-Ins. ISO. No. M-3161-1, M-3179-1, M-4251-1 and M-4611-1.

RHR Torus Spray Piping. ISO. No.

M-3161-1.

Ell-F007B EL 578' X

B-ll Ell-F028B EL 578' X

B-ll LPCI Discharge Piping. ISO. No.

M-3151-1.

Ell-F010 (Div. I)

EL 575' X

B-12 Ell-F611B EL 565' X

B-ll Page 6

LEAKAGE REDUCTION PROGRAM REPORT FOR Residual Heat Removal (E1100)

Division II Examination Point /

Location Leakage Detected Description Yes No LPCI Injection Piping and Fuel X

Pool Tie-Ins. ISO. No. M-2299-1, M-3151-1, M-3668-1 and M-3669-1.

Shutdown Cooling Suction Piping.

ISO. No. M-2299-1 and M-3152-1.

Ell-Flll EL 545' X

B-12 Drywell Spray Piping (Boundary Terminates at Ell-016B) and Keep Fill Check Valves. ISO. No.

M-3035-1 and M-3164-1.

Ell-F204B EL 560' X

C-9 Ell-F205B EL 560' X

C-9 RPV Head Spray Piping. ISO.

X No. M-3035-1 and M-3164-1 l

l Page 7