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y M <br />ro � <br />H <br />5 H y <br />� <br />f+ S <br />� �3 � <br />O F O <br />� N K7 <br />V1 M <br />� y � <br />O H Q <br />M [9 p <br />47 • (7 <br />b H � <br />. <br />t H H <br />N <br />N <br />O N <br />� � [�tl <br />�ov�.� <br />.�,. ;.,� <br />.�• . <br />; �Fr,'t"."5�' � <br />$epCombcr 2G, 1990 <br />Otv 01 <br />nti�„ Mo� everett <br />Ilewitt-Isley <br />119 I'ine StYeet ruoucwonKsoc�nen.irrir <br />Scattle, Washington 98101 �aoocennns�nrc� <br />cv[n[ttrvn5�nua��'�+ <br />SuUject: Snohomish P.U.D. Operations Center ��,�„ <br />Dcnr Brinn: <br />1» reference to your sketch sheet #174.14, Secci.on l.4/�1.24, several <br />modifications must Ue made to your desi�n. <br />1, The minimum wei�ht of theimaEiUe[ Ulank is 4 pounds per cubi.c foot. <br />7, All li�hts wl�ich are not a one-hour ratect assembly must Ue coverect <br />with nn approved Cent as oul-lined in NER-1h8. <br />3, The mnximutn nrea of diEPusers in n given nrca is 100 square iocl�es <br />penetraoiois1�1The maxi�nunldiffusec dLmensionLis112 incles,c ceiling <br />t�, Fice blocking must Ue installed in corridor walls aC Che point oE the <br />suspended ceilin� attachme�it. <br />I[ ynu have any quesCions, plense conCacC me at 259-[i81.0. <br />Regards. <br />� <br />WedeUei'gV���� <br />Plans Gxamincr <br />llld: eh/1418 <br />S�I�FI�i P[PLPIIOff11IY/ <br />,arn:o 11U'+ <br />]5� Piflq <br />1111.11i11 1!fllltll 111111 Ill���: <br />n Rniw� <br />:`9P�109 Y1111C105 ' <br />�sn nnn: <br />,,,������,��.,,, <br />PI�I'IiC II�RI!ICS COIli1ROC11U1! CNG�r�CO11N6 SIGtInl1.�MN1E�I�NGE <br />INSf EGiION ��� AA� ..n ppM� <br />::UR'iCIJ; �59���� ISnflPf10 •. <br />, ,�n,�n�� wnn�,.,i�� <br />