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, � ' � <br /> Chapler 3—Syslam Das�gn <br /> P2ge 3-3 <br /> R�V.2 <br /> Translllan Ducl�—Tha protacqon of tton-sleltdsrd ducls a f�Aulllple fisers <br /> shoufd be revlewad by the eutharity having Jurladicqon. 1n csses o(multlple rlsea,each rlser te pro(ealed as en <br /> pyRp_�}��►vt KiTGHEN}CN1C3tiT 11 reoommecsda ihat transl- , IndividueT duct.Sea Figurs 3-ie. <br /> Ilon dUCls be prolocted Ha follows: � <br /> DUCT <br /> a. Transttian ducts—targer to sataiter <br /> !n oeses where Ihe duaUpl�num Inierfsae opening fs <br /> laigsr tl�sn the tlnaS exhaust tiuct,mesaure tt�s perlme- � � <br /> terldfameler of(he duct halfwey beiwean Ihe iergee[ --aucT <br /> and emalleel aeclion{or lhe avereqe perlmeler/dleme- <br /> tar).Tha nazxia Ts to be looaisd wtihtn 4-B!n.('{5.2 cin} pp{�JDO� <br /> of lhe ducUplenurn In[ertece{not ef the po�nE where ihe <br /> measurement was teken),centered under Ihe Iinel p�E"v'" <br /> , ext�eust dt�ct openir�g.See F(gure 3-ic, ► �tgure 3-1e <br /> @lectCOSiatic Preclptfafor�Duc{s uCilfzing eleclrastaUc <br /> preGlpEiators must be protected abave a�c�batvw tha unEt. - <br /> 3landard ducl nozzlea are used In lhie eppllcoilon.See <br /> r Figura 3-1f. <br /> 2D NOZZIE <br /> FEl21MfiT&R"'—r' "` —" —' " <br /> t,SEA3tlREMHNT 1t2 WAY tN10 -�--Pti�CtFfTASOR <br /> TMNBiTiQH • <br /> � aMt»r6 <br /> i'LENUM <br /> Zp NOZZLE <br /> , Figura�3-7¢. ' <br /> (�'—--i—'p,,,— aoe��a�ro <br /> b. Trane111on ducls—smeJfer io lerper � Flgure 3-4f • <br /> tn caaes whars[he ducUplenum iniertaca opening is <br /> smelier Ihan the final exhaua[ducf,meesura iha > pJe»um Profectlon <br /> perimelerldiameter of(he finai exhausl duc6 The <br /> nozzte(s}ls tn be tocated wlthtn 4-8•1n.(18.2�m)of the Z(�� t�ioclel iH noul�,Ps�t No.5G1028,3s� ana (�}tiaw <br /> ducUplenum Interfece,csnfered In ihe opening.Soe nozzle used For plenum proteclior+.A eingle 1 f-{noxxle can <br /> . Flgure 3-1d. prolecl e plenum(wl(h single or V-benk flliers) 9D tt. (3.1 mj <br /> , tong by 4([.{9.2 m�wlde.Dtvtdtng the tength tnto sect�ons <br /> PEA�ME7ER---_ - - -i- -- ' equef lo or iess Ihan �0 ft. (3.9 m)In leng(h a�nd posltlonfnc� <br /> r�ensur+eMEmr 7 a nozzle at!he start af aech seCiton can ba cfone to•proteci � <br /> i �angar plenums. � <br /> � - <br /> � <br /> i <br /> � <br /> � <br /> � coeu�ro <br /> �-_�-- <br /> . Flgure 3-1d <br /> � UL�X aaao <br /> � PN851274(2) April 9,2004 <br />