ML20116E036
| ML20116E036 | |
| Person / Time | |
|---|---|
| Site: | McGuire, Mcguire  |
| Issue date: | 07/30/1996 |
| From: | NRC (Affiliation Not Assigned) |
| To: | |
| Shared Package | |
| ML20116E038 | List: |
| References | |
| NUDOCS 9608050050 | |
| Download: ML20116E036 (2) | |
Text
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POWER DISTRIBUTION LIMITS SURVEILLANCE RE0VIREMENTS (Continued) c.
Performing the following calculations:
1.
For each core location, calculate the % margin to the maximum allowable design'as follows:
%OperationalMargin=(1-
) x 100%
[F '(X,Y,Z)]OP o
% RPS Margin = ( 1 -
) x 100%
l.
[Fo (X,Y,Z)]RPS l
I-where - [F '(X,Y,Z)]OP. and [F '(X,Y,Z)]RPS are the Operational and RPS a
o design peaking limits defined in the COLR.
i 2.
Find the minimum Operational Margin of all locations examined in i
4.2.2.2.c.1 above. 'If any margin is less than zero,-then either of the following actions shall be taken:
i
{
(a) Within 15 minutes:
l (1) Control the AFD to within new AFD limits that are determined by:
l (AFD Limit)duC*d = (AFD Limit)COLR negative negative j
MIN
+ [ MARGIN op] absolute value
'(AFD Limit) reduced = (AFD Limit)COLR.(3)-
Positive positive I
MIN
- [ MARGIN OP] absolute value l
MN where MARGIN is the minimum margin from OP 4.2.2.2.c.1, and 1
(b) Comply with-the ACTION requirements of Specification 3.2.2, treatingthemargingiolationin4.2.2.2.c.1aboveasthe amount by which Fo is exceeding its limit.
(3) Defined and specified in the COLR per Specification 6.9.1.9.
'McGUIRE - UNIT 1 3/4 2-4 Amendment No. 167 960805o050 960730 PDR ADOCK 05000369 P
POWER DISTRfBUTION LIMITS SURVEILLANCE REQUIREMENTS (Continued) j c.
Performing the following calculations:
1.
For each core location, calculate the % margin to the maximum allowable design as follows:
% Operational Margin = ( 1 -
) x 100%
[F ' (X,Y,Z)]OP a'
M Fo (X,Y,Z)
% RPS Margin = ( 1 -
) x 100 %
3
[F '(X,Y,Z)]RPS o
i where [F '(X,Y,Z)]OP and [F '(X,Y,Z)]RPs are the Operational and RPS o
design peaking limits defined in the COLR.
2.
Find the minimum Opcational Margin of all locations examined in 4.2.2.2.c.1 above.
If any margin is less than zero, then either of the following actions shall be taken:
(a) Within 15 minutes:
(1)
Control the AFD to within new AFD limits that are determined by:
(AFD Limit) reduced = (AFD Limit)COLR (3),
negative negative MN
+ [ MARGIN OP] absolute value W
(AFD Limit) reduced (AFDLimit)COLR
=
positive positive MIN
- [ MARGIN OP] absolute value MIN where MARGIN is the minimum margin from OP 4.2.2.2.c.1, and (b)
Comply with the ACTION requirements of Specification 3.2.2, treatingthemarginyiolationin4.2.2.2.c.1aboveasthe g
amount by which Fo is exceeding its limit.
W Defined and specified in the COLR per Specification 6.9.1.9.
McGUIRE - UNIT 2 3/4 2-4 Amendment No. 149
-