Rev 0 to Separation Requirements for Circuits Connected to Class 1E Sources Which Are Deenergized on Accident Signal| ML20137M281 |
| Person / Time |
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| Site: |
Clinton  |
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| Issue date: |
02/01/1985 |
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| From: |
SARGENT & LUNDY, INC. |
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| To: |
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|---|
| Shared Package |
|---|
| ML20137M160 |
List: |
|---|
| References |
|---|
| 19-BD-15, 19-BD-15-R, 19-BD-15-R00, NUDOCS 8601280231 |
| Download: ML20137M281 (2) |
|
|
|---|
Category:TECHNICAL SPECIFICATIONS & TEST REPORTS
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[Table view]
Category:TEST REPORT
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1993-11-30
[Table view] |
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-c a.awr se N
. %:%-4 -M M M Amida'-t Sir-1 e, ev
.- % O-C^OO y f Lfetv-Related N on-Lf ety-R elated Page 1 of 2 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~
RE:SPCts!B'E DIVISICti: EFED FILE 20. : 1923 V 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 -
c ogg URE: (E m PLE)
C x S tE ses UNCONTRC! 'r D COfb': -
C O1 -
~
Breaker Trips on Accident Signal
. C o) e i
~
3
. Class lE Cable m 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 l
1" ("I 19 $T
%) u f,7
- .1 J.Iu_iJ . 2. I ;-
9601280231 PDR ADOCK h hPDR61 ~~
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
+ -
,,,,, ..... m.~ -s e- -m- e g-m am n em 2-1-e s 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, c
i i Non-Class lE or Associated.
i g .
REVIEW METHOD: .
o -
t .,.
~- *
d Detailed review of entire analysis.
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