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How to Cori#igilare.Yoiur System <br /> First calculate the spans and penetration.count. There--is <br /> a:SnapNrack span calculation table on the back ofthi.s <br /> Manual: Determine site conditions: general building height,- <br /> array pitch, the wind speed, an,d snow load or topographical <br /> condition'. Find,appropriate railspan from table.' <br /> Span Table. Example <br /> Building Height Less than 30 f-t .Less than. 30 Feet • • <br /> Array.Pitch 15'25° <br /> Wind Speed . . _ 90'Miles/Hr. 120-Miles/Hr. ••_ - - • - • <br /> :Snow Load 8.lb None - • • •• - • • - • <br /> Topo, Cond. None Top hill . _ • <br /> .Rail S an <br /> Max Rail Spans Between-Standoffs.(FT:) . .- <br /> Tllts.of 197.or Less p f3F2 0 - 711ts.31'fo dl ' Tilts 46'to -• - •• • •• <br /> . . .Ground Snow Wind speed ',Wind speed -: Wind speed Wind speed <br /> Load(PSF) (Nominal3-sec.Gust In mph) (Nominal3-sec.Gust In mph) (Nominal3-sec.Gust In mph) (Nominal 3-sec.Gus <br /> _ .. .90 105 '120 .135 150 9901.105 1120 135 150 90 105 120 1.135 1150 90 .105 120 1 <br /> • 0 '8! 8 ':-6 '6- -6 .6• -6- 6' 4- 4- 6- 6 4. ' 4 2 6 6 6 <br /> INNFCJ­11_0 6. 6 6, -4 4. [6� 6' .4 '4' ,2" .6.- 4 4' '2 "2 .'6 6- 4' <br /> -21=20 -6. --4- 4' 4 . -2 .4- - 4. 4 .2- 2. 4 .4: 2 2 2 -4 :4 ..4 <br /> ­21-30.. . 4. .4 -4. '2- 2 '4* - 4 4- '2 2'. .4 4 2 2. "2. 4 4 -4 <br /> -.3140*.. -4'. 4 -.2 •2. 2 ,4 4. 2� 2. 2. 4- . 4 '2 2 '. ,2 - 4. 4 .4 <br /> C •41-60. '2, 2' -2.. .2 . 2' 2 2. 2 .2 . 2.. 4 4 2. .2 ..2 4 '4 q. <br /> $ 61-80 . . 2' ..2. 2 . 2 .2 2. . 2 2, ,2. 2. 4 ..q 2 2 '. .2 4. 4 .4 <br /> �. .81-100:. . 2 . '2' .'CS *CS I.'CS 2-1 2 1'CS I'CS •CS 4 2 2 2 ..2 A 4: 4 <br /> M .101-120 'CS *CS. 'CS !CS 'CS 2 'CS 'CS 'CS 'C5 '4 '2. 2' 2 2' A -4 4 <br /> N <br /> +' 20'to 30-' :31-to 4S- - 46'to 60' <br /> 2 <br /> C_ Topographical -_end speedWlnd speed. - _. .Wind speedWtnd s"peed <br /> 'C Condition, (Nominal 3-sec.Gust In mph) (Nominal 3-sec Gust In mph)- (Nominal 3-sec,Gust In mph): (Nominal 3-sec.Gust <br /> 90-'105 135 I5090 105 120 135 150 9D '105120 135 '15090' 105 126 1 <br /> 7 <br /> co 8'. . 6 - 4. . 4 '.6 6. .4 .4 -2. '6 ..4 4 2 '. .2- 6. 6' ,4 <br /> Coastal .. 6` -'6 4 4 2 .6 4. 4 •2 2- 6 .4• z.. 2 2 6 -'4 "4. <br /> Mesa .6 6. 4 ..4' 2 6 4' .4 2. .2 •6 4. 2 2• -2 6 4' '4. <br /> !CS MODULE OVERHANG. . <br /> -.COnsult EXCEED 25% <br /> -Structural En ineer OFOT TO MO MODULE LENGTH) <br /> RAIL.SPAN <br /> -RAIL END OVERHANG. <br /> (NOT TO EXCEED.34%OF ' <br /> ACCEPTABLE.RAIL'SPAN), <br /> A� <br /> �y�fJ <br /> j1 �u <br /> l- h <br />