ML20050C887
| ML20050C887 | |
| Person / Time | |
|---|---|
| Site: | Midland |
| Issue date: | 03/31/1982 |
| From: | Jackie Cook CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| 10CFR-050.55E, 10CFR-50.55E, 80-04-#6, 80-4, 80-4-#6, NUDOCS 8204090435 | |
| Download: ML20050C887 (8) | |
Text
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O Consumers Power Company Vice President - 14ojects Engineering and Construction General Off 6ces: 1945 West Parnall Road, Jackson, MI 49201 + (517) 788-0453 March 31, 1982 Mr J G Keppler, Regional Administrator N
US Nuclear Regulat;ry Commission Region III g
799 Roosevelt Road Glen Ellyn, IL 60137 NECE;pg APRS MIDLAIID PROJECT -
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rec ilELBA RESTRAINT DESIGN FILE:
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References:
J W Cook letters to J G Keppler, Same Subject :
(1) Serial 8830, dated September 19, 1980 (2) Serial 10070, dated December 1,1980 (3) Serial 11525, dated April 3, 1981 (h) Serial 13663, dated September h, 1981 (5) Serial lh63h, dated December lb, 1981 This letter, as were the referenced letters, is an interin 50 55(e) report concerning HELBA restraint design. Enclosure 1 provides a current status of the act. ions being taken with regard to this matter.
Another report, either interim or final, will be sent on or before September 15, 1982.
WRB/lr : MCAR h0, Interim Report 6, "High-Energy Line Break Analysis (liELbA) Pipe Whip Restraint Designs," dated March 17, 1982 CC:
Document Control Desk, NRC Washington, DC RJCook, NRC Resident Inspector Midlan 1 ?;uclear Plant
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bkb Serial 161h7 80-Oh #6 n62773 SUBJXG:
MCAR 40 (issued 8/26/80)
High-Energy Line Break Analysis (BELBA) Pipe Whip Restraint Designs INTERIM 3EPORT 6 DATE:
March 17, 1982 PkOJECT:
Consumers Power Company Midland Plant Units 1 and 2 Bechtel Job 7220 Introduction This report provides the current status of MCAR 40 and actions performed since Interim Report 5.
Status of Action Items An investigation by the technical staff of appropriate methods for modeling thrust force time histories was completed duriag the period covered by this interim report. Based on their recommendations, the project is prinarily using the computer program PRTHRUST in conjunction with the PIPERUP structural analysis code to determine whether or not restraints as designed will meet design requirements. Results thus far indicate that most of them can be shown to meet design requirements.
Status of Restraints The attached table, originally included with Interim Report 2 and updated in Interim Report 4, shows the current status of restraints potentially affected by the concern of MCAR 40.
As before, entries lef t blank indicate incomplete analyses.
Because HELBA analysis is still being carried out, a number of additional restraints have been deleted from the table since Interim Report 4 due to pipe rerouting, shif ts in break locations, changes in analysis assumptions, etc.
The total number of potentially af fected restraints is now 128. It should be noted that these changes have also resulted in the requirement for a number of new restraints which are being designed according to the current design requirements.
l
j 062845 062773 The other significant changes since Interim Report 4 are the verification of several restraints, primarily on the main steam lines outside contain-ment, and the decision to redesign the restraint scheme for the reactor coolant system letdown lines outside containment due to the fnereased forces.
The attached table will be updated again in the next interim report.
Submitted by:
D.A. Clements Nuclear Systems Group Supervisor IM Approved y:
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v< L.H. Curtis \\
Project Enginhring Manager Concurrence by:
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$.H. Smith Engineering Manager Concurrence by:
l M.A. Dietrich Project Quality Assurance Engineer JAC/DDK
Attachment:
Status of Pipe Whip Restraints Affected by MCAR 40, dated 3/15/82
MIDLAND UNITS 1 AND 3 STATUS OF PIPE WHIP RESTRAINTS AFFECTED BY MCAR 40"'
Restr Mod.
Mod.
System Pipet:3 Install Constr Size OK Loc OK Size OK Loc OK Needed Needed ID Restraint Bldq
(%)
Hold Phase I Phase I Phase II Phase II size Loc Inside C)
Containment C7) rs)
DH return line PR-610-2-6 Reactor 50 No No No DH return line PR-610-2-8 Reactor 50 No No No DH return line PR-610-2-10 Reactor 50 No No No
~'d DH return line PR-610-2-12 Reactor 50 No No No C3J DH return line PR-611-2-3 Reactor 100 No No No C23 DH return line PR-611-2-5 Reactor 100 No No No CF)
DH return line PR-611-2-9 Reactor 100 No No No b,)
DH return line PR-611-2-12 Reactor 0
No No No cy)
DH return line PR-611-2-13 Reactor 0
No No No DH return line PR-611-2-21 Reactor 100 No No No 43, LJ1 MFW PR-638-13-5 Reactor 0
No No No MFW PR-638-13-6 Reactor 0
No No OK No MFW PR-638-13-7 Reactor 0
No No OK No MFW PR-638-13-8 Reactor 0
No No No MFW PR-638-13-9 Reactor 0
No No OK No MFW PR-638-13-14 Reactor 0
No No OK No MFW PR-638-13-15 Reactor 0
No No OK No MFW PR-638-13-16 Reactor 0
No No OK No MFW PR-638-13-17 Reactor 0
No No OK No MFW PR-638-13-18 Reactor 0
No No No OK No MFW PR-638-13-19 Reactor 0
No No OK No MFW PR-638-13-20 Reactor 0
No No OK No MFW PR-638-13-21 Reactor NA No No No MFW PR-639-13-2 Reactor 100 No No No MFW PR-639-13-16 Reactor 50 No No OK No MFW PR-639-13-17 Reactor 50 No No No MFW PR-639-13-18 Reactor 30 No No No MFW PR-639-13-29 Reactor 50 No No OK No MFW PR-639-13-35 Reactor 100 No OK OK No No AFW PR-638-14-15 Reactor No No No OK OK No No i
AFW PR-639-14-24 Reactor No No No CK OK No No PRZR Relief PR-601-3-16 Reactor 0
No No No PRZR Relief PR-602-3-16 Reactor 0
No No No HPI, Normal MU PR-603-1-9A Reactor NA No No HPI, Normal MU PR-603-1-9B Reactor 0
No No No Page 1 3/15/82
MIDLAND UNITS 1 AND 2 Pipe Whip Restraints Affected by MCAR 40 (Continued)
Restr Mod.
Mod.
System Pipetti istall Constr Size OK Loc OK Size 04 Loc OK Needed Needed ID Restraint Bldq
(%)
Hold Phase I Phase I Phase II Phase II Size Loc HPI, Normal MU PR-604-1-15 Reactor 0
No OK No No HPI, Normal MU PR-604-1-29 Reactor O
No No No HPI, Normal MU PR-604-1-33A Reactor 0
No No No HPI, Normal MU PR-604-1-33B Reactor 0
No No No HPI, Normal MU PR-604-2-41 Reactor NA No OK No No HPI, Normal MU PR-604-2-44A Reactor NA No No No HPI, Normal MU PR-604-2-44B Reactor NA No No No HPI, Normal MU PR-604-2-45 Reactor NA No No No CD Letdown PR-603-3-2 Reactor 0
No OK No No CD O
Letdown PR-603-3-4 Reactor 0
No OK No No A N Letdown PR-603-3-6 Reactor 100 No No No N m Letdown PR-603-3-8 Reactor 100 No OK No No 4,,
Letdown PR-603-3-9 Reactor 100 No OK No No Letdown PR-603-3-10 Reactor 0
No UK No No CJ1 Letdown PR-604-3-7 Reactor' O
No No No Letdown PR-604-3-9 Reactor 100 No No No Letdown PR-604-3-10 Reactor NA No OK No No Letdown PR-604-3-48 Reactor 0
No No No Outside Containment AFW PR-633-4-4 Aux 0
No No No AFW PR-633-5-1 Aux 0
No No No AFW PR-633-5-2A Aux 0
No No No AFW PR-633-5-3 Aux 0
No No No AFW PR-633-5-5 Aux 0
No No No AFW PR-633-5-6A Aux 100 No No No AFV PR-633-5-6B Aux 100 No No No AFW PR-633-5-7 Aux 0
No No No AFW PR-633-5-9 Aux 0
No No No AFW PR-633-5-12 Aux 0
No No No AFW PR-633-5-18 Aux 0
No No No AFW PR-634-5-1 Aux 0
No No No AFW PR-634-5-2 Aux 0
No No No AFW PR-634-5-3 Aux 0
No No No AFW PR-634-5-4B Aux 0
No No No AFW PR-634-5-10 Aux 100 No No No AFW PR-634-6-2A Aux 100 No No No AFW PR-634-6-3 Aux 0
No No No AFW PR-634-6-4 Aux 100 No No No AFW PR-634-6-7 Aux 100 No No No Page 2 3/15/82
a MIDLAND UNITS 1 AND 2 Pipe Whip Restraints Affected by MCAR 40 (Continued)
Restr Mod.
Mod.
System Pipetz:
Install Constr Size OK Loc OK Size OK Loc OK Needed Needed ID Restraint Bldq
(%)
Hold Phase I Phase I Phase II Phase II Size Loc AFW PR-634-6-8 Aux 100 No No No Main steam PR-631-2-1 Aux NA OK OK No No Main steam PR-631-2-2 Aux NA OK OK No No c:3 Main steam PR-631-2-3 Aux NA OK OK No No CT)
Main steam PR-631-2-4 Turbine 40 No N
Main steam PR-631-2-5 Turbine 40 No 58 Main steam PR-631-2-6 Turbine 40 No
%J Main steam PR-631-3-1 Aux 95 No OK OK No No O
Main steam PR-631-3-2 Aux 95 No OK OK No No CT)
Main steam PR-631-3-3 Aux 95 No OK OK No No ps)
Main steam PR-631-3-4 Turbine O
No cy)
Main steam PR-631-3-5 Turbine O
No Main steam PR-631-3-6 Turbine O
No tJ1 Main steam PR-632-2-1 Aux 95 No OK OK No No Main steam PR-632-2-2 Aux 95 No OK OK No No Main steam PR-632-2-3 Aux 95 No OK OK No No Main steam PR-632-2-4 Turbine 40 No Main steam PR-632-2-5 Turbine 40 No I
l Main steam PR-632-2-6 Turbine 40 No l
Main steam PR-632-2-7 Turbine 40 No Main steam PR-632-2-8 Turbine O
No l
l Main steam PR-632-2-9 Turbine O
No Main steam PR-632-3-1 Aux 95 No OK OK No No l
Main steam PR-632-3-2 Aux 95 No OK OK No No L
Main steam PR-632-3-3 Aux 95 No OK OK No No Main steam PR-632-3-4 Turbine O
No Main steam PR-632-3-5 Turbine O
No Main steam PR-632-3-6 Turbine O
No Main steam PR-632-3-7 Turbine O
No Main steam PR-632-3-8 Turbine O
No Main steam PR-632-3-9 Turbine O
No Main steam PR-632-3-10 Aux 90 No l
l Main steam PR-660-1-1 Aux 90 No l
Main steam PR-660-1-2 Aux 90 No l
Main steam PR-660-1-3 Aux 90 No OK OK No No Main steam PR-660-1-4 Aux 90 No OK OK No No l
Main steam PR-660-1-5 Tunnels 0
No Main steam PR-660-1-6 Tunnels 0
No Main steam PR-660-1-7 Tunnels 0
No Main steam PR-660-1-8 Tunnels 0
No Page 3 3/15/82
[
l MIDLAND UNITS 1 AND 2 Pipe Whip Restraints Affected by MCAR 40 (Continued)
Restr Mod.
Mod.
System Pipetri Install Constr Size OK Loc OK Size OK Lcc OK Needed Needed ID Restraint Bldq
(%)
Hold Phase I Phase I Phase II Phase II Size
_ Loc Main steam PR-660-1-9 Tunnels O
No Main steam PR-660-1-10 Tunnels 0
No Main steam PR-660-1-11 Tunnels 0
No Main steam PR-660-1-12 Tunnels 0
No Main steam PR-660-1-13 Aux 95 No Main steam PR-660-1-14 Tunnels 0
No c--g Main steam PR-660-1-15 Tunnels 0
No N
Letdown PR-603-15-1 Aux 0
No No No Yes Yes
%I Letdown PR-603-15-4 Aux 0
No No No N
Yes Yes Letdown PR-603-15-5 Aux 0
No No No y
Yes Yes a
Letdown PR-604-15-1 Aux 0
No No No Yes Yes O
Letdown PR-604-15-2 Aux 0
No No No Yes Yes N
Letdown PR-604-15-3 Aux 0
No No No Yes Yes Co Letdown PR-604-15-5 Aux 0
No No No Yes Yes Letdown PR-604-15-7 Aux 0
No No No Yes Yes
.p-g (1) Phase I is an energy balance analysis; Phase II is a time history (dynamic) mealysis (2) Total potentially affected pipe whip restraints = 128 LEGEND:
DH: Decay heat MDd: Main feedwater AFW: Auxiliary feedwater PRZR: Pressurizer HPI: High-pressure injection MU: Makeup AUX: Auxiliary NA: Not available Page 4 3/15/82
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