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SWH Solar Racking Installation Manual Download Page 7

9628 Valley Blvd. Rosemead, CA 91770 | Phone 626-579-3288 | [email protected]

SWH Solar Racking Installation Guide | Version 12.10.v2

7

Source: ASCE 7-10 Minimum Design Loads for

Special Wind Region

Location
Guam
Virgin Islands
America Samoa
Hawaii- Special Wind Region Statewide

Buildings and Other Structures, Chapter 26

Miles per hour

(Meters per second)

[1.2.] Procedure to Calculate Total Design Wind Load per ASCE 7-10

Vmph
195
165
160
130

(m/s)
(87)
(74)
(72)
(58)

FIGURE 26.5-1A (Continued) Basic Wind Speeds for Risk Category II Buildings and Other Structures

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Summary of Contents for Solar Racking

Page 1: ...SWH Solar Racking Installation Guide 9628 Valley Blvd Rosemead CA 91770 Phone 626 579 3288 info esolarwarehouse com Version 12 10 v2...

Page 2: ...rt III Installing SWH Solar Racking System 3 1 SWH Solar Racking Components 3 2 Installing SWH with Top Mounting Clamps 3 2 1 Planning Your SWH Racking Installations 3 2 2 Laying Out L Brackets 3 2 3...

Page 3: ...aspects of the PV array Ensuring correct and appropriate design parameters are used in determining the design loading used for design of the speci c installation Parameters such as snow loading wind s...

Page 4: ...tor for building height and exposure category Kzt Topographic Factor 1 pnet30 psf net design wind pressure for Exposure B at height 30 feet You will also need to know the following information Basic W...

Page 5: ...to human life in the event of failure All buildings and other structures except those listed in Risk Categories I III and IV Risk Category Buildings and other structures designated as essential facil...

Page 6: ...n contours is permitted 3 Islands and coastal areas outside the last contour shall use the last wind speed contour of the coastal area 4 Mountainous terrain gorges ocean promontories and special wind...

Page 7: ...or Special Wind Region Location Guam Virgin Islands America Samoa Hawaii Special Wind Region Statewide Buildings and Other Structures Chapter 26 Miles per hour Meters per second 1 2 Procedure to Calcu...

Page 8: ...e last wind speed contour of the coastal area 4 Mountainous terrain gorges ocean promontories and special wind regions shall be examined for unusual wind conditions 5 Wind speeds correspond to approxi...

Page 9: ...Wind Region Location Guam Virgin Islands America Samoa Hawaii Special Wind Region Statewide Buildings and Other Structures Chapter 26 1 2 Procedure to Calculate Total Design Wind Load per ASCE 7 10 Vm...

Page 10: ...e ground for Exposure C category 2 Linear interpolation between contours is permitted 3 Islands and coastal areas outside the last contour shall use the last wind speed contour of the coastal area 4 M...

Page 11: ...al Wind Region Location Guam Virgin Islands America Samoa Hawaii Special Wind Region Statewide Buildings and Other Structures Chapter 26 1 2 Procedure to Calculate Total Design Wind Load per ASCE 7 10...

Page 12: ...r the purposes of this code compliance document the Topographic Factor Kzt is taken as equal to one 1 as per Section 26 8 2 or as determined by Figure 26 8 1 in ASCE 7 10 Also shown in pages 13 14 Ste...

Page 13: ...1 50 0 01 0 02 0 00 2 00 0 00 0 00 0 00 Notes 1 For values of H Lh x Lh and z Lh other than those shown linear interpolation is permitted 2 For H Lh 0 5 assume H Lh 0 5 for evaluating K1 and substitu...

Page 14: ...WIND LOADS GENERAL REQUIREMENTS Topographic Factor Kzt Equations 2 3 2 1 zt K K K 1 K below table from determined K1 L x 1 K h 2 h z L 3 e K Parameters for Speed Up Over Hills and Escarpments K1 H Lh...

Page 15: ...6 6 6 70 4 6 7 7 7 7 7 7 7 7 80 4 6 8 8 8 8 8 8 8 8 90 4 6 8 9 9 9 9 9 9 9 100 4 6 8 10 10 10 10 10 10 10 125 5 6 8 10 12 12 5 12 5 12 5 12 5 12 5 150 6 6 8 10 12 14 15 15 15 15 175 7 7 8 10 12 14 16...

Page 16: ...he value calculated in Step 2 If the installation is Figure 3 Enclosed buildings wall and roofs Flat Roof Hip Roof 7 27 Gable Roof 7 Gable Roof 7 45 Interior Zones Roofs Zone 1 Walls Zone 4 End Zones...

Page 17: ...Rosemead CA 91770 Phone 626 579 3288 info esolarwarehouse com SWH Solar Racking Installation Guide Version 12 10 v2 1 2 Procedure to Calculate Total Design Wind Load per ASCE 7 10 Table 3 pnet30 psf...

Page 18: ...8 68 6 66 5 63 8 61 7 68 6 66 5 63 8 61 7 78 1 75 7 72 6 70 2 78 1 75 7 72 6 70 2 98 8 95 8 91 9 88 9 98 8 95 8 91 9 88 9 122 0 118 3 113 4 109 8 122 0 118 3 113 4 109 8 40 6 40 6 40 6 40 6 68 3 61 6...

Page 19: ...liance document the Topographic Factor Kzt is taken as equal to one 1 as per Section 26 8 2 or as determined by Figure 26 8 1 in ASCE 7 10 Pnet30 net design wind pressure for Exposure B at h 30 ft Ste...

Page 20: ...5 psf including modules and SWH racking systems If the Dead Load is greater than 5 psf see your SWH distributor a local structural engineer or contact SWH The following procedure will guide you in se...

Page 21: ...oad w from Part II Step 2 look up the allowable spans L in Table 7 The L bracket SWH Series Rail Span Table uses a single L bracket connection to the roof wall or stand off Table 7 L Foot SWH Rail Spa...

Page 22: ...tep 1 Step 3 Module length perpendicular to rails Rail Span Downforce Point Load Table 8 Downforce Point Load Calculation It is the installer s responsibility to verify that the building structure is...

Page 23: ...ood Council NDS 2005 Table 11 2A 11 3 2A Notes 1 Thread must be embedded in the side grain of a rafter or other structural member integral with the building structure 2 Lag bolts must be located in th...

Page 24: ...clips bond panels to rail Place under panels and mid clamp Grounding Bolt Stainless steel bolt and clip bond rails to ground ing wires Grounding Lug Tin Copper plated aluminum lug for bonding rails t...

Page 25: ...Warehouse recommends Silver Grade LocTite Anti Seize Item numbers 38181 80209 76732 76759 76764 80206 and 76775 or equivalent 1 4 20 hardware used in conjunction with top down clamps must be installe...

Page 26: ...the user should be directed to also check The Code The width of the installation area equals the length of one module The length of the installation area is equal to the total width of the modules plu...

Page 27: ...that the L bracket face as shown in Figure 7 and 8 For greater ventilation the preferred method is to place the single slotted square side of the L bracket against the roof with the double slotted si...

Page 28: ...rlayment into the center of the rafters at each standoff location Apply sealant to the hole Securely fasten 5 16 lag screw with thread top SWH aluminum standoffs 1 O D are designed for collared flashi...

Page 29: ...Slide Channel nut to line up with the crown of tile STEP 8 Using 3 8 carbide bit and a rotary hammer drill through the crown of the tile at the intersection of the chalk line STEP 2 Remove the tile by...

Page 30: ...t flashing and pilot hole STEP 3 Insert the flashing so the top part is under the next row of shingles and pushed far enough up slope to prevent water infiltration through vertical joint in shingles L...

Page 31: ...pilot holes witht roof bar holes STEP 6 Insert lag bolts through 5 16 SS flat washers and into rafter 6 STEP 7 Tighten lag bolts using a 5 16 socket wrench to between 100 140 inch pounds depending on...

Page 32: ...holes STEP 6 Insert lag bolt through 5 16 SS flat washer through roof hook and into the rafter STEP 7 Tighten lag bolt using a 5 16 sock et wrench to between 100 140 inch pounds depending on the type...

Page 33: ...oxi mately 1 2 between the rail segments Secure the splice bar or splice plate with two screws or bolts on one side only Footings such as L feet or standoffs should be secured normally on both sides o...

Page 34: ...connect it to the first module Close the J box cover Secure the first module with T bolts and end clamps at the aligned end of each rail Allow half an inch between the rail ends and the end clamps Fig...

Page 35: ...Slide or drop SW GL 02CT grounding lug into top mounting slot of rail Torque lug in place to 8 ft lbs Nibs will penetrate rail anodization and create grounding path through rail MFG PN EA SW GC 01 NO...

Page 36: ...Place grounding bolts or grounding lugs on both sides of splice with 6 10 AWG copper wire loop as shown If using single ground wire method be sure wiring between rails is not taut 3 3 Installing SWH...

Page 37: ...tate and local installa tion procedures product and safety standards These standards include but are not limited to applicable National Electrical Code NEC sections UL Standards OSHA Regulations State...

Page 38: ...connect individual racks together from one single point to another single point Only use stainless steel hardware when connecting harnesses or jumpers to the mounting system Take care to prevent copp...

Page 39: ...A installation of the Product is not performed in accordance with the Solar Warehouse Product Information B if the Product has been modified repaired or reworked in a manner not previously authorized...

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