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HomeMy WebLinkAboutLETTER - GODWIN ENGINEERING AND DESIGNGODWIN ENGINEERING AND DESIGN, LLC 8378 Foxtail Loop, Pensacola, FL 32526 1 (850)712-4219 1 chad@godwineng.com BY St. LUae COU11tg! June 12, 2019 To: St. Lucie County Building Division 2300 Virginia Avenue Ft. Pierce, FL 34982 I c ��+•; a 3 i.lil Re: O'Donnell — Residential PV Roof Mount Installation + ucln Ccunty, Permitting 5541 Teal Terrace Fort Pierce, FL 34982 REVIEWED FOR Gmfi9 AP CODE COMPLIANCE ST(6c7�nA� Plan Reviewer, ST. LUCI��E��CrrOUNTY This letter is regarding the installation of a new ground-mpp¢&�5�far PV system at the address above. I have analyzed/reviewed the attached plans and have determined that the Ground Mounted PV Structure is in compliance with the applicable sections of the following Codes and Reference documents: Codes: 2017 Florida Building Code 6th Ed., FBCq� ASCE/SEI 7-10 Min. Design Loads for Buildings & Other Structure References: ��• IVI Aluminum Design Manual 2015. IronRidge Exhibit EX-0001 Per FBC 2017, the Ground Mounted PV structure is considered risk category I structure and will be subject to the following design criteria: Design Wind Speed(V +t) - 150mph 3sec gust, Exposure Category — B The structure is a simple column(pier) and beam (cross pipe) system. The tops of the piers are connected in the E-W direction by the cross pipes which cantilever over and extend past the end piers. The cross pipes are connected by proprietary IronRidge XR1000 Rails spanning up and down the slope which cantilever over and extend past the top and bottom cross pipes. There are typically two rails per column of modules. The modules are clamped to the rails by the IronRidge module mounting clamps. If the structure is constructed according to the attached drawings and in accordance with the IronRidge Ground Mount installation manual, it will be more than adequate to support the design wind loads. Please see attached documents and contact me should you have any questions. Sincerely, D. Chad Godwin, PE 81360 Exp.02/28/2021 1�\ Udonnell GROUND BASED 283571NDUSIRIAL BLVD., HAYWARD, CA 94545 Project Details NAME Odonnell LOCATION Fort Pierce, FL, 34982 MODULE LG:LG320NlK-A5(40mm) DIMENSIONS 66.38" x 40.00" x 1.57"(1,686 x 1,016 x 40mm) Load Assumptions DATE 2019-06-12 TOTAL MODULES 55 TOTAL WATTS 17,600 TILT 25 deg CONFIGURATION 5-Up Foundation Requirements WIND EXPOSURE B TYPE Concrete WINDSPEED 150mph HOLE DIAMETER 12 in. GROUND SNOW LOAD 0 psf MIN HOLE DEPTH 72 in. Substructure Requirements Foundation Loads PIPE SIZE 3" SHEAR 1,8541bs. DIAGONAL BRACING Yes MOMENT Oft-Ibs. UPLIFT -2,874 Ibs. 3rd Party Substructure Materials vllli TOTAL PIPE 244' 4.9" j�j" '� •� ��•, i h 'I-�+ '> TOTAL CONCRETE 2.44 yd 3 _ •" j P V I, C. *. .8 60 *� j©n�'•FtORIOP: 11il ONIA V 601ll Last updated by Chad Godwin on 2019-06-12 11:24:47 -0700 Udonnen r GROUND -BASED 29357 INDUSTRIAL BLVD., HAYWARD, CA 94545 Plan View Side View CANTILEVER N-S PIER 90" SPACING SOUTH EDGE 1 CLEARANCE MINIMUM HOLE DEPTH I °•aE°�� aEO 16\ �.�I'1�'I t ; 4 $ f(t.. I.71 REVIEWED FOR COMPLIANCE tSTo IJCIE/VCOUNTY ®®CC 8'2.2" NORTH EDGE 618.4"ABOVE CLEARANCE 5'8" BELOW 1 $'8' BELOW 1— _1 9'0.. a 1 n NS PIER SPACING 12" HOLEDIAMEfER Note: The Images displayed in this report are meant to represent one portion of the array. The use of a break line indicates that the array may continue on beyond that point. Last updated by Chad Godwin on 2019-06-12 11:24:47 -0700 ///IIJ OnInnen GROUND -BASED 28357 INDUSTRIAL BLVD., NAYWARD, CA 94545 Pipe Fittings Detail Front View Clamp Detail "MODULE FRAME UNIVERSAL FASTENING OBJECT Mid Clamp, Plan INECTOR ING Mid Clamp, Front UNIVERSAL FASTENING OBJECT PV MODULE FRAME RAIL UNIVERSAL FASTENING OBJEC PV MODULE XR1000 RAIL 3' RAILCONNECTOR 3'TOPCAP 3'PIPE LBING Side View II ,j RAIL PV MODULE FRAME UNIVERSAL FASTENING OBJECT STOPPER SLEEVE End Clamp, Plan End Clamp, Front REVIEWED FOR CODE COMPLIANCE ST. LUCIE COUNTY E®CC STOPPER SLEEVE UNIVERSAL FASTENING OBJECT RAIL PVMODULE FRAME \\\\\�Xe C. c---- � X GO �i 4) :Z V360 .� ;Z_ r ®. S EOF '14 Last updated by Chad Godwin on 2019-06-12 11:24:47 -0700 r Udonnell GROUND -BASED 28357 INDUSTRIAL BLVD., HAYWARD, CA 94545 Grounding Diagram ('Al (Mr)) (nl (Mr)) w w w w Tw Plan Vieo* one Greundirg Lug mgdmd per oaminuaus subanay. OUFOor Grounding Lug* CAMO Fault Current Min 10 AWG Ground Path — Copper Wire 0 Bonding Points F Fault Current Ground Path Section View 'Groundlip Wgs areaim are am required W aymeas using cerlaln Enphase rnom.enere orcarmi Sunpamer modules. Equlpmant gmunding Is aWlaced wh Ne EngagecaWa for Erphase or Iho AC module cable rystemfor Sunpawar We their ino,rmed MC. \ 1 ;� � 11 •�j F� �; �t �_:;� r1 V � ?• n amp i ,j L'L ( ` t •4 1 N l 00 ' 81 � htir :it EOF %il��0JVAL 6 a\('yll Last updated by Chad Godwin on 2019-06-12 11:24:47 -0700