ML20137M281
| ML20137M281 | |
| Person / Time | |
|---|---|
| Site: | Clinton  |
| Issue date: | 02/01/1985 |
| From: | SARGENT & LUNDY, INC. |
| To: | |
| Shared Package | |
| ML20137M160 | List:
|
| References | |
| 19-BD-15, 19-BD-15-R, 19-BD-15-R00, NUDOCS 8601280231 | |
| Download: ML20137M281 (2) | |
Text
caics For Secaration Recuirements for Circ:its c,ie No. / 9 - f_d - @
SA!! GENT h LUNDY connecta$ to Class lE Sources,which are o
Date 3 _ 1 _ g-
. %:%-4 -M M M Amida'-t Sir-1 e, ev c a.awr se N y f Lfetv-Related N on-Lf ety-R elated Page 1 of 2
O-C^OO Cf eat Illi-oie pcwer cc rany Pre :ared hv _.*E-[ fd.,,,[~[
Oste,.*-
Prote:t cli-to - pcwer Station - Unit 1 Rev'ewed by l / / I'~;' [_,
[
Oate f-/ /' ~
Foi No.
.:534 n0 E wg No.
Approved by hMi[/ V. ~h'M Date 2 - f -St~
V RE:SPCts!B'E DIVISICti: EFED FILE 20. : 1923 PURPOSE:
The purpose of this analysis is to demonstrate that:
1.
A cable which is connected to a Class lE power supply,~ feeds Non-Class 1E load (s). and is tripped on an accident signal, does not recuire separation from Class lE and associated or Non-Class lE cables of the same division (e.g. Seg. Code lE, lA, 13) when ph;sical separation is not practical.
2.
The regregation of the Non-Class lE cables may be designated non-safety related, associated or safety-related.
Non-Class lE loads which are connected to Class lE power supplies that are not tripped on an accident signal are not addressed in this analysis.
UEONir w -
ogg c
URE:
(E m PLE)
UNCONTRC! 'r b
D COf ':
C x S tE ses C
O1 C
o)
~
Breaker Trips on Accident Signal ie
~
. Class lE Cable m 3
cr--Segregation Code: Safety-Related,
!b M.ini.= Secaration Ncn-Safety Related er Asscciated 3
Distance or Pirrier P@ed Divisicn (Also, !b Mini:m:n separation if rot Practical Distance or Barrier P @ ed knong These Cables Khich Can Be Segregated Safety-Pelated, Non-Safety Pelated or
=
Associated and are Tripped on an Accident Signal)..
C: ASS lE LCAD ICN-C ASS lE ICAD I
l I
q T
lu f,7 '."
1"
("I 19
$T
- .1 J.I
%)
u_iJ. 2. I ;-
9601280231 h h 61 PDR ADOCK
~~
PDR A
~
Celes. For Seoaration Re:uire ents for Circuits C. c. No. / 9 - N -/8 SARGENT k LUNDY Connecu to a. ass s sources wmen ara am n em 2-1-e s
+
m.~
-s e-
-m-e g-m c.- c *oo X
Lf ety-R efered Non-hf ety-R eisted
,Sge 2 of 2
C:ent Illinois Pcwer Company Prepared by Date Proiect Clinton Pcwer Station - Unit 1 Reviewed by -
lcm Proi. No. 4536-00 Eame No.
Aporeved by
!Oate JUSTIFICATICN:
IEEE-384-1974, Section 4.6 defines separation. requirements of Non-Class lE circuits to Class lE and associated circuits.
Sections 1
4.6.2 and 5.1.1.2 dictate that separation distances can be established by a'nalysis.
Regulatory Guide 1.'75, Revision 2 Regulatory. Position C.1 requires that breakers which are used as isolation devices be tripped on the receipt of an accident signal.
All circuits for Non-Class lE loads on the Clinton Project which are tripped on an accident signal become isolated from their respective __
power sources during accident conditions.
When these circuits are isolated, the conductors cannot become energized and therefore, they cannot pose a threat to the essential sources in accordance with Regulatory Guide 1.75, Revision 2 requirements.
Based on the, preceding, cables which are connected to Class lE power l
sources, feed Non-Class lE loads and are tripped on an accident l
signal, do not require separation from Ciass lE, Associated Circuits
',___,or,Non, Class _ lE Circuits of the same division when physical separation, is not practical.
The segregation of. these cabl.es may be Class lE, i
i Non-Class lE or Associated.
c i
g REVIEW METHOD:
o t
~-
..L....s d
Detailed review of entire analysis.
L L _.._...._..... _
.1...
i I
I_
._..e
.. _, _., _... -.. - ~. _
I g
i i
g p-.
b/
i I
i i
_ _. =
{
-- _._ _ _ _1 L...
t
._.2._____.
l
- .e.y
.........e,e..e.
....a r*
_ee.
e s.
Je.-ee.
e.
....eg.
g k