ML20137M267

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Rev 0 to Tray Cover Exemption for Safety Trays Under Non-Safety Raceway
ML20137M267
Person / Time
Site: Clinton Constellation icon.png
Issue date: 01/08/1985
From:
SARGENT & LUNDY, INC.
To:
Shared Package
ML20137M160 List:
References
19-BD-13, 19-BD-13-R, 19-BD-13-R00, NUDOCS 8601280229
Download: ML20137M267 (2)
v • d • e


Text

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o Cales For Trav Cover h m tion for Cale. No. 19-80-13 SARGENT hlUNDY a., oe.ol-os-as

- a womeemet sacetv Travs ender uen-saf ety na cemv O

i c -- c a o o X 9,,,,_g,i,,ed l N on-Lf ety-R eisted %e of 1 2 C:et Illinoin Po er cc- une ~ ~

F 'o*'ed hv f M M + / . a / c cex:: - y,.; -

no,,n eltneon n,--.ohv N [S w at c. / cr./-2 M i Noi No. 4536-00 Eamo No ---- Apotoved by /t.ft b M t Date /-b M

~' % ~PQ UIBG 'DIVISIQ;: ~ NED E FIIE M).: 19BD

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Purpose:

_ The purpose of this analysis is to demonstrate.that Class JE . cables

. _ routed in uncovered trays which are located under non-Class.lE sable

_ in uncovered solid bottco trays or conduit do not require covers _

_ for internally generated faults / fire provided a one inch minimum t ..._._ __separa tion is maintained. Separation requirements for external _

. ._. .ha ards are not. addressed.in_this analysis.' I ' '

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/ igure: _._._. _._.._____ lon-Cla s s_' . II. L ,i i _._

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. ___ _ _ _ _ _ _ _ _ . . . _ . . _ _ . _. Raceway _ .. '

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. . _ _ _ . - _ _ . - . _ _ . - Class 1E __ p. _: . : - - _ . . L_ . _ -

L. _ . . _ _ . _. _. .._ _ . __ . _. Cables _ . - -

b . _. . _ __ . A C U ' ___

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L _._ _ _ _ __. . _. . _ _0, . N__; C__ _ O N 1 nC4

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_lua tification:. _,. _._ i,.__. -

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_ Hegulatory_Gulde_1.754278_ and IEEE_.184-1374l_addrless , l l

aepara tion._!_ ,

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__.dne .to .toth internally _ generated. fire .and_ external._hazarda..__.Since

__ external _ha:ards..iincludind_ehposurc 11'rek1_ N abd$csbed n '

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, specific _ studies _with. specific Iequiraments l this;_ analysis _wi1Lhe L .

j _ . _. limi'ted_to_ addressing.'. internally g.cnersted .f'auits2f dres __L I

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_ __ ._for__danage po tential limited. .to[ interna'lly . generated _f.ailures tor'

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r ___ . f aults IIII_3 8 h117.4,_Sec tion _.5. L1.1.dic tates_.that_.aLminimum ___ ' '

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-. . _s epara tion _ dis tance _cane be . established i

by. analysis _o, i

f_',the . propo r , i sed .

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'_ca.ble _ina,tallation d Q.therwise a3.er.ical saparation of_thrne ' f ecAL_._

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_in_.ca hl e_.;sp r.e a ding _'ar e s s_.a nd. .f iv e _l e e.t .in ' g.cn c r a lLp la rtt_a ran s._ishall _ ;

ha._ma i n t Ained_.p er. Sec tion _.5. L3 Land K 114 '  ! ' I t I l

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PDR ADOCK 05000461 ~ ~ ~ ~ ~ ' ' ^ ~ ~ -

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cm , r w c ,v r,e-., e n ., enr c.ic.N. 19-ao-13 SA.9 GENT k LUNDY 3,,,3. y., p.,ge, % _g3,e y -

p y,,wav R e- 0 o= 01-08-es

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c- caoc y l Lfety-Reisted Non-Lfetv-Related f59e 2 of 7 cent Illinois Power Comcany Prepared hv Date l Prciect C1inton R eviewed bv Date l Prei. No. 4536-00 Eamo No. ---- Aaoroved by Dets l Justification: (continued)

The cable which is installed in.the trays on the Clinton Project, i_s _'

._ IEEE-383 qualified _ fire retardant cable. Also, the_ design _ basis _ is_.!

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.that trays will not be . filled above the side rails. Whenever the r.aceways _(i .e . conduit or solid bottom uncovered tray) with only. _

_ non-Class lE cables pass over. an uncovered tray with Class lE ,

.. _ cables, t.he_results of an. internally _generat.ed_ fault 4 fire in the ,

h _.. ._ essential _ tray can _only aff ec_t _that _diyj.sion_of _the_ cables _. and .t_h_e.__}

[_ ___non-Class' lE cables.which are not required.f_orisafeishutdown.' .

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.i Internallv_Senera ted f aultsHir_es_inithe__rion'-esse' i n tial racewa[will i only. aff ect_the non-. Class _lE _ cabling _because heat f rom internal _ly; l I

p.__ .. generated faults / fires _will rise _;thus .not_aff ecting_the cables below i , Covers _pn non-Class lE_ __l

[.____. ._prov.ided .a one _ inch.. air _ gap _ is_Uti).ited.. . .,

. cable _ tray will_not. provide _any.. protection _forlthe Claas _1_E' tray _ '

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beneath , . - - . _ _ - - ._ -_-_' a _ _ t '

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- eJ_ l 3ased._on_the .abov.e,._ tray _c.gvers 'gp..ne. ither_ the ! tr.aydvi[th_Cla.ss lE f cabl.esnor__the_traywithnon-Class'lEcablebrk_r!equired'when! -

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-- _._non-Class lE raceways .are ._over_ Claha,lE. uncovehad Aray_s And_t i here is l

' '  ! I a mi.n#;um_of 1" se_p.ar_ation. l l i I l ,

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" _ ___ l .__ ~.'inal_Saf e.ty., Analy s is_Ref or_t_ RSAR_)' _ A: .endment il5! l I o ' ,

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3. WEIq-Oll53 - Safety Evaluath.on ReporLKlinton) ' I i i l i a

i L __NEC_Regulktory _, Guide _1.7E_.119.78 i  !

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