Loading...
HomeMy WebLinkAbout703 Correspondence1 Browning, Bobby From:Sinkovich, Brett Sent:Friday, March 27, 2026 10:54 AM To:Browning, Bobby Subject:Fw: Using larger conductors on the PL1000 Brett Sinkovich Engineering Inspector III Public Works 919 Palm, San Luis Obispo, CA 93401-7314 E BSinkovi@slocity.org T 805.781.7425 slocity.org Stay connected with the City by signing up for e-notifications From: Matt Waddle <matt.waddle@chargepoint.com> Sent: Friday, March 27, 2026 10:50:50 AM To: Brett Mcmickle <bmcmickle@newtonconstruction.com>; Brady Dauth <bdauth@electricraftinc.com>; Sinkovich, Brett <BSinkovi@slocity.org> Subject: Using larger conductors on the PL1000 Regarding using larger than 3/0 wire on the PL1000: That requirement comes from the average size of a 3/0 lug. Just as long as the 4/0 lug or the 250 lug (whatever size you all are specking) fits completely on the bus bar, it will pass commissioning. I do not have Bobby Browings email who was on the call yesterday, so if one of you could forward this email to him I would appreciate it. So yes, using 4/0 or 250 kcmil is acceptable so long as the lug is in full contact of the bus bar. I am adding a photo of a site that used 2x 500 KCMIL for their site and it passed since the lugs did not overhand the bus bar. 2 Matt Waddle Fleet Solutions Engineer ChargePoint | chargepoint.com 601.415.3357 cell ChargePoint, Inc. | Nashville, TN | USA E lectric a I Cont ra cto rsDecember 23,2025City of San Luis Obispo - Public Works Dept919 Palm StreetSan Luis Obispo, CA 93401Subject: City of SLO Battery Electric Bus ChargersElectricraft Job No. 25-269Project No. 25091Enclosed please find the following:l-l Drawinos! Specificationsn SubcontractE otnerFor:n Review[l lnformationn Rt Your Requestn oftrerINc. 200 Suburban Road, Suite A, San Lur's Obispo, CA 95401Transmittal! Copies ofI Purchase Order No.! Cnange Order No.[l Preliminary Lien Notice! Approve & Return! Signaturen ActionThank you,Karen FranckContract Coordinator805.544.8224 . Fax: 8O5.544.0208 . info@electricraftinc.com . LicH68443 CALIFORNIA PRELIMINARY NOTICETHIS IS NOT A LIEN. THIS NOTICE IS GIVEN PURSUANT TO SECTIONS 3097 AND 3098, CALIF. CIVIL CODENOTICE TO PROPERTY OWNERIF BILLS ARE NOT PAID IN FULL FOR THE LABOR, SERVICES, EQUIPMENT OR MATERIALS FURNISHED OR TO BE FURNISHED, AMECHANICS' LIEN LEADING TO THE LOSS, THROUGH COURT FORECLOSURE PROCEEDINGS, OF ALL OR PART OF YOUR PROPERTYBEING SO IMPROVED MAY BE PLACED AGAINST THE PROPERTY EVEN THOUGH YOU HAVE PAID YOUR CONTRACTOR IN FULL. YOU MAYwtsH To PRoTECT YOURSELF AGATNST TH|S CONSEQUENCE BY (1) REQUIRTNG YOUR CONTRACToR TO FURNISH A StcNED RELEASEBY THE PERSON OR F|RM GTVTNG YOU TH|S NOTTCE BEFoRE MAKTNG PAYMENT TO YOUR CoNTRACToR OR (2)ANy OTHER METHoD ORDEVICE THAT IS APPROPRIATE UNDER THE CIRCUMSTANCES. OTHER THAN RESIDENTIAL HOMEOWNERS OF DWELLINGS CONTAININGFEWER THAN FIVE UNITS, PRIVATE PROJECT OWNERS MUST NOTIFY THE ORIGINAL CONTRACTOR AND ANY LIEN CLAIMANT WHO HASPROVIDED THE OWNER WITH A PRELIMINARY 2O.DAY LIEN NOTICE IN ACCORDANCE WITH SECTION 3097 OF THE CIVIL CODE THAT ANOTICE OF COMPLETION OR NOTICE OF CESSATION HAS BEEN RECORDED WITHIN 1O DAYS OF ITS RECORDATION. NOTICE SHALL BE BYREGISTERED MAIL, CERTIFIED MAIL, OR FIRST.CLASS MAIL, EVIDENCED BY A CERTIFICATE OF MAILING. FAILURE TO NOTIFY WILLEXTEND THE DEADLINES TO RECORD A LIEN.(THIS STATEMENT IS APPLICABLE TO PRIVATE WORKS ONLY)YOU ARE HEREBY NOTIFIED:THE NAME AND ADDRESS OF THE PERSON OR FIRM WHO HAS FURNISHED OR WILL FURNISHLABOR, SERVICE, EQUIPN/ENT OR MATERIAL OF THE FOLLOWING DESCRIPTION iS:DATE: r 2/23/2sCity of SLO Battery Electric Bus Chargers(DESCRIPTION OF IVATERIALS. LA8OR. SERVICES OR EQUIPMENT FURN]SHED OR TO BE FURNISHED)lnstallation of EV bus charqersElectricraft, lnc. Job No. 25-26929 Prado RdSan Luis Obispo CA 93401(crTY)(sTArE)(zrP)Electricraft, lnc.(NAME)20O Suburban RoadSuite AcA 93401erVice President/CFO12/23/25(TTTLE)(DATE)INOIVIDTIALORFIRMTHE NAME 0F THE PERSON WHO CONTRACTED FOR THE PURCHASE 0F (PRIVATE WORKS) 0R WHO WILL BE FURNTSHED (pUBLtC WoRKS)SUCH LABOR, SERVICE, EQUIP[,lENT 0R IVATER|AL lS Newton Construction & Manaoement. lnc.City of San Luis ObispoPublic Works Department91 9 Palm StreetSan Luis Obispo, CA 93401TOOI,YNERffiREPTIIED OWNERORPUBLIC ENTITYLEASE HOLD OWNER(S) (TENANT ilVPROVEMENT)0R TRUST FUND (rF APPLTCABLE){Name) N/A(Address)(Name)(Address)(Name)(Address)Newton Construction & Management, lncPO Box 3260San Luis Obispo, CA 93403TOORIGINATCONTMCTORORREPUTEDCONIRACTORESTIMATED PRICE OF THE LABOR, SERVICES. EQUIPI\i]ENT ORIV]ATERIALS DESCRIBED HEREON.130,362.00$N/ATOCONSTRUCTIONLENDERORREPUTEDCONSTRUCTIONLENDERt,(sEcTr0N 3097.'r cALTFORNTA CrvrL CODE), declare that I served copies of the above PRELIMINARY NOTICE(check appropriate box).Karen Francka nBvPersonal Service onO E A;l Firsi-Class Certified or Registered Mail service, addressed to each of the partiesI declare under penalty of perjury that the foregoing is true and correct.Signed atSan Luis ObisATTACH RECEIPTS OF CERTIFIED OR REGISTERED IVIAIL WHEN RETURNEDFill out form and make copies of completed form as needed(name(s) and litle(s) of person serued)at the address shown above on 12/23/25(date and time)to@VFR inc.. P0. Box 7 Loomis. CA95650 (916)652-7237Revised 01 -2004(date)FORM A ELECTRICRAFT, INC.KAREN FRANCK2OO SUBURBAN RD STEAsN LU|S OB|SP CA 9s401-7533USPS CERTIFIED MAIL$8.86 US POSTAGEFIRST-CLASS IMIDec232Q25Mailed from ZIP 934011 OZ FIRST-CLASS l\,lAlL LETTERRATE4?d5$zsoJoo:g)ilililt ililililil] ilil til il I ilill tilt I til063S0010282496CITY OF SLO BATTERY ELECTRIC BUS CHARGERS PROJECT9414 8118 9876 5439 8286 32CITYOF SAN LUIS OBISPOPUBLIC WORKS DEPT919 PALM STsN LUtS OB|SP CA93401-3271,llll,,ll,plllhlllhllllllll'llllllllllll,l,llllllull,ll,,lllFOLD ALONG THIS LINE THIS NOTICE IS MATERIALS ON I"'"i+ffiffiBBfiLiffffTX3 Loncrete materials FURNISHED OR WILL FURNISHLABOR,SERVICES, EQUIPMENT Materials ElectricBattery Bus Charging Infrastructure CA 95023 Credit 1060 Nash Rd OR FIR]Vt San Luis CA 93 401 CONTRACTED FOR,IHE PURCHASE OF6 Broad St,San Luis oR MATERTAL ". rnuofl?i3o,J#aTiu, cRrprroN : LABOR, SERVICE, EQUIPMENT OR SUCH NAME Newton & 2436 Broad St TO: DIRECT CONTRACTOR OR REPUTED DIRECT San Luis Obispo,cA93401 PUBLICAGENCY OR PUBLIC WORK TO: TO: CONSTRUC:TI()N on pno.rocr ltrotn ORREPWED ofSan Luis 919 TO: OWNER OR REPUTED San Luis CAObispo,93 40 Obispo, CA 9 3401 (ONLY SUBCONTRACTORS REQUIR.ED TO FURNISH THE A.BOVE) MATENAL: I, Sendie Alvarcz,declare that I served on the lender, owner, subcontractorfor copies of the above preliminary rs true and correct. Executed on addresses on: 03/ 17 /2026. I d.eclare,under penalty ofperjury of the laws whom work, labor and materials Notice by first class registered/certified mail, postage prepaid,were furnished and dire, of the state orcalrornf contractor, at the above a, that the foregoingSignature of person making service: 6, at Hollister, Califomia. Project:Project #:25091 Contract #:20000403 RFI #:1 Rev:Date:2/19/2026 Answer Company: Subject Reference Power Block Foundation Final Elevation Questions CC: Company Name Contact Name Copies Notes Answer (additional space on following page if needed) Answer Request For Information 001 During an initial site walk conducted on January 15, 2026 with representatives from the City of San Luis Obispo, it was conveyed that the City would like the final grade of the Power Block Foundation to be set at 6 inches above existing grade due to existing drainage concerns in the area. However, Detail 2 on Sheet 5 currently indicates the Power Block Foundation is to be set at 1/2 inch above finished grade, which conflicts with the direction discussed during the site walk. Please confirm that the City intends for the Power Block Foundation final elevation to be set at 6 inches above existing grade in lieu of the detail shown on Sheet 5. Brett McMickle Newton Construction PO Box 3260 San Luis Obispo, CA 93403 Phone (805) 544-5583 Fax (805) 544-5584 Author Company:Brett Sinkovich City of San Luis Obispo Signature Signed Date Battery Electric Bus Charging Infrastructure 919 Palm St. San Luis Obispo, CA 93401 (805) 440-7172 Detail 2, Sheet 5 The Power Block Foundation final elevation needs to be 6" above existing grade. Thickness of concrete foundation and base to remain the same. A note will be added to the asbuilts. 2/23/2026 Project:Project #:25091 Contract #:20000403 RFI #:1 Rev:Date:2/19/2026 Answer Company: Subject Reference Power Block Foundation Final Elevation Questions CC: Company Name Contact Name Copies Notes Answer (additional space on following page if needed) Answer Request For Information 001 During an initial site walk conducted on January 15, 2026 with representatives from the City of San Luis Obispo, it was conveyed that the City would like the final grade of the Power Block Foundation to be set at 6 inches above existing grade due to existing drainage concerns in the area. However, Detail 2 on Sheet 5 currently indicates the Power Block Foundation is to be set at 1/2 inch above finished grade, which conflicts with the direction discussed during the site walk. Please confirm that the City intends for the Power Block Foundation final elevation to be set at 6 inches above existing grade in lieu of the detail shown on Sheet 5. Brett McMickle Newton Construction PO Box 3260 San Luis Obispo, CA 93403 Phone (805) 544-5583 Fax (805) 544-5584 Author Company:Brett Sinkovich City of San Luis Obispo Signature Signed Date Battery Electric Bus Charging Infrastructure 919 Palm St. San Luis Obispo, CA 93401 (805) 440-7172 Detail 2, Sheet 5 Answer Project:Project #:25091 Contract #:20000403 RFI #:2 Rev:Date:2/20/2026 Answer Company: Subject Reference Power Block Foundation Anchor Bolt Installation Detail 2, Sheet 5 Detail 4, Sheet 5 Questions CC: Company Name Contact Name Copies Notes Answer (additional space on following page if needed) Request For Information 002 Detail 1 on Sheet 5 indicates that twenty-four (24) anchor bolts are to be embedded 9 inches into the Power Block Foundation to anchor the Power Block equipment. Detail 2 on Sheet 5 omits any reference to drilling and epoxying the anchor bolts with Simpson Set-3G epoxy indicating that the anchor bolts are to be cast-in-place. To improve anchor bolt installation accuracy and provide a consistent slab finish, NCM proposes utilizing Detail 4 on Sheet 5, which allows for anchor bolts to be drilled and epoxied after concrete placement using Simpson Set-3G epoxy. Please confirm this is acceptable. Brett McMickle Newton Construction PO Box 3260 San Luis Obispo, CA 93403 Phone (805) 544-5583 Fax (805) 544-5584 Author Company:Brett Sinkovich City of San Luis Obispo Battery Electric Bus Charging Infrastructure 919 Palm St. San Luis Obispo, CA 93401 (805) 440-7172 Detail 1, Sheet 5 Power block templates are provided to help with accuracy of the cast-in-place anchor bolts as well as anchor force calculations. Drilled and epoxied anchor bolts for the power blocks are denied. 2/23/2026 Project:Project #:25091 Contract #:20000403 RFI #:2 Rev:Date:2/20/2026 Answer Company: Subject Reference Power Block Foundation Anchor Bolt Installation Detail 2, Sheet 5 Detail 4, Sheet 5 Questions CC: Company Name Contact Name Copies Notes Answer (additional space on following page if needed) Request For Information 002 Detail 1 on Sheet 5 indicates that twenty-four (24) anchor bolts are to be embedded 9 inches into the Power Block Foundation to anchor the Power Block equipment. Detail 2 on Sheet 5 omits any reference to drilling and epoxying the anchor bolts with Simpson Set-3G epoxy indicating that the anchor bolts are to be cast-in-place. To improve anchor bolt installation accuracy and provide a consistent slab finish, NCM proposes utilizing Detail 4 on Sheet 5, which allows for anchor bolts to be drilled and epoxied after concrete placement using Simpson Set-3G epoxy. Please confirm this is acceptable. Brett McMickle Newton Construction PO Box 3260 San Luis Obispo, CA 93403 Phone (805) 544-5583 Fax (805) 544-5584 Author Company:Brett Sinkovich City of San Luis Obispo Battery Electric Bus Charging Infrastructure 919 Palm St. San Luis Obispo, CA 93401 (805) 440-7172 Detail 1, Sheet 5 Answer Project:Project #:25091 Contract #:20000403 RFI #:3 Rev:Date:2/20/2026 Answer Company: Subject Reference Bollard Installation Detail Change City SLO Detail 7335 Post Guard Installation Detail Questions Answer (additional space on following page if needed) Request For Information 003 Detail 11 on Sheet 2 specifies a “Removable Bollard per City of San Luis Obispo Standard Detail 7335.” Due to procurement constraints associated with the Reliance Foundry R-8902 bollard, NCM submitted a Post Guard brand removable bollard as an equal substitute, which has since been reviewed and approved. NCM proposes utilizing the manufacturer’s approved installation detail (attached) in lieu of City of San Luis Obispo Standard Detail 7335 because it is a larger foundation and consistent with manufacturer requirements. The manufacturer’s detail specifies a footing that is 5 inches deeper and 3 inches wider than the City standard, resulting in footing dimensions of 24 inches deep by 21 inches wide. Concrete utilized in accordance with the approved Cast-In-Place Concrete submittal. Please confirm this is acceptable. Brett McMickle Newton Construction PO Box 3260 San Luis Obispo, CA 93403 Phone (805) 544-5583 Fax (805) 544-5584 Author Company:Brett Sinkovich City of San Luis Obispo Battery Electric Bus Charging Infrastructure 919 Palm St. San Luis Obispo, CA 93401 (805) 440-7172 Const. Keynote 11, Sheet 2 Answer POST GUARD® Encore Commercial Products, Inc. 37525 Interchange Dr., Farmington Hills, MI 48335 Toll Free 1-866-737-8900 Fax 248-354-4095 www.postguard.com Specifica�ons: 4”x36” Stainless Steel Removable Embedment sleeve is made of stainless steel Core drilled base Title: 4” Stainless steel Removable Bollard Recommended Use: Date: 7/20/23 Size: 4”x36” Removable Page: 1 of 1 Drawing Number: RMB436SS Project:Project #:25091 Contract #:20000403 RFI #:3 Rev:Date:2/20/2026 Answer Company: Subject Reference Bollard Installation Detail Change City SLO Detail 7335 Post Guard Installation Detail Questions Answer (additional space on following page if needed) Request For Information 003 Detail 11 on Sheet 2 specifies a “Removable Bollard per City of San Luis Obispo Standard Detail 7335.” Due to procurement constraints associated with the Reliance Foundry R-8902 bollard, NCM submitted a Post Guard brand removable bollard as an equal substitute, which has since been reviewed and approved. NCM proposes utilizing the manufacturer’s approved installation detail (attached) in lieu of City of San Luis Obispo Standard Detail 7335 because it is a larger foundation and consistent with manufacturer requirements. The manufacturer’s detail specifies a footing that is 5 inches deeper and 3 inches wider than the City standard, resulting in footing dimensions of 24 inches deep by 21 inches wide. Concrete utilized in accordance with the approved Cast-In-Place Concrete submittal. Please confirm this is acceptable. Brett McMickle Newton Construction PO Box 3260 San Luis Obispo, CA 93403 Phone (805) 544-5583 Fax (805) 544-5584 Author Company:Brett Sinkovich City of San Luis Obispo Battery Electric Bus Charging Infrastructure 919 Palm St. San Luis Obispo, CA 93401 (805) 440-7172 Const. Keynote 11, Sheet 2 Install approved bollards with manufacturer's requirements. 2/23/2026 Project:Project #:25091 Contract #:20000403 RFI #:4 Rev:Date:2/23/2026 Answer Company: Subject Reference Power Block Location Clarification Questions Answer (additional space on following page if needed) Battery Electric Bus Charging Infrastructure 919 Palm St. San Luis Obispo, CA 93401 (805) 440-7172 Sheet 2 Request For Information 004 The Site Plan on Sheet 2 illustrates the general location of the Power Block; however, no dimensions are provided to establish the exact placement. During a site visit conducted on February 20, 2026 with the City of San Luis Obispo Inspector, NCM reviewed the proposed layout in consideration of existing vegetation and the existing fence configuration. Based on this field coordination, a proposed location was identified measuring 68 feet from the corner fence post of the existing switchboard enclosure to the corner fence post of the Power Block enclosure. Please confirm the proposed location is acceptable. Brett McMickle Newton Construction PO Box 3260 San Luis Obispo, CA 93403 Phone (805) 544-5583 Fax (805) 544-5584 Author Company:Brett Sinkovich City of San Luis Obispo Project:Project #:25091 Contract #:20000403 RFI #:4 Rev:Date:2/23/2026 Answer Company: Subject Reference Power Block Location Clarification Questions Answer (additional space on following page if needed) Battery Electric Bus Charging Infrastructure 919 Palm St. San Luis Obispo, CA 93401 (805) 440-7172 Sheet 2 Request For Information 004 The Site Plan on Sheet 2 illustrates the general location of the Power Block; however, no dimensions are provided to establish the exact placement. During a site visit conducted on February 20, 2026 with the City of San Luis Obispo Inspector, NCM reviewed the proposed layout in consideration of existing vegetation and the existing fence configuration. Based on this field coordination, a proposed location was identified measuring 68 feet from the corner fence post of the existing switchboard enclosure to the corner fence post of the Power Block enclosure. Please confirm the proposed location is acceptable. Brett McMickle Newton Construction PO Box 3260 San Luis Obispo, CA 93403 Phone (805) 544-5583 Fax (805) 544-5584 Author Company:Brett Sinkovich City of San Luis Obispo Answer Project:Project #:25091 Contract #:20000403 RFI #:5 Rev:Date:3/20/2026 Answer Company: Subject Discipline Reference Equipment Wire Sizing ChargePoint Express Datasheet Questions Page 36 - Site Design Guide Suggestions Answer (additional space on following page if needed) Signature Signed Date Battery Electric Bus Charging Infrastructure 919 Palm St. San Luis Obispo, CA 93401 (805) 440-7172 Electrical Sheet 8 Request For Information 005 Equipment EVPL 7,8,9,10 are capable of charging at 250 amps per the attached ChargePoint Express Plus Datasheet and Page 36 of the Power Block and Power Link 1000 Site Design Guide. Feeder wires for EVPL 7,8,9,10 show conductor size of XHHW 3/0. At a 90 deg. C rating, XHHW 3/0 is only rated for 225 amps. Upsize feeder wires to XHHW 4/0, which is rated for 260 amps at 90 deg. C. Upsizing wire to 4/0 will stay within acceptable conduit fill standards. Brett McMickle Newton Construction PO Box 3260 San Luis Obispo, CA 93403 Phone (805) 544-5583 Fax (805) 544-5584 Author Company:Brett Sinkovich City of San Luis Obispo Project:Project #:25091 Contract #:20000403 RFI #:5 Rev:Date:3/20/2026 Answer Company: Subject Discipline Reference Equipment Wire Sizing ChargePoint Express Datasheet Questions Page 36 - Site Design Guide Suggestions Answer (additional space on following page if needed) Signature Signed Date Battery Electric Bus Charging Infrastructure 919 Palm St. San Luis Obispo, CA 93401 (805) 440-7172 Electrical Sheet 8 Request For Information 005 Equipment EVPL 7,8,9,10 are capable of charging at 250 amps per the attached ChargePoint Express Plus Datasheet and Page 36 of the Power Block and Power Link 1000 Site Design Guide. Feeder wires for EVPL 7,8,9,10 show conductor size of XHHW 3/0. At a 90 deg. C rating, XHHW 3/0 is only rated for 225 amps. Upsize feeder wires to XHHW 4/0, which is rated for 260 amps at 90 deg. C. Upsizing wire to 4/0 will stay within acceptable conduit fill standards. Brett McMickle Newton Construction PO Box 3260 San Luis Obispo, CA 93403 Phone (805) 544-5583 Fax (805) 544-5584 Author Company:Brett Sinkovich City of San Luis Obispo GECE: CONDUCTORS FROM POWERBLOCK TO POWERLINK WERE SIZED PER PREVIOUS COORDINATION WITH CHARGEPOINT PER MATERIAL COPYRIGHTED IN 2025. SEE PAGE 43 OF THE EXPRESS PLUS POWER LINK 1000 SITE DESIGN GUIDE (ATTACHED), THE MAX WIRE SIZE FOR THE POWERLINK IS 3/0 AWG. ALSO ON PAGE 43 OF THE DESIGN GUIDE, UNDER NORTH AMERICAN REQUIREMENTS, CHARGEPOINT LISTS MAX CURRENT AS 200A FROM POWER BLOCK TO EACH POWER LINK 1000. #3/0 AWG COPPER AT 90 DEGRESS CELSIUS IS LISTED FOR 225A. WE DON'T BELIEVE UPSIZING THE WIRE IS NECESSARY. HOWEVER, CONFIRM WITH CHARGEPOINT IF THERE ARE ANY UPDATES TO THE DESIGN GUIDELINES COPYRRIGHTED 2025. EDDIE PACAOAN, PE 2026-03-25 Wire Landing Max.Wire Quantity x Size Max.Conduit Quantity x Size Lug Size a 350 A, 1000 V DC input 12 x 95 mm2 (3/0 AWG) (six per input, three per pole) e 2 x 91 mm (3.5 in) (six HV and one ground wire per conduit) Long barrel and tongue with two holes 44.5 (1.75 in) apart,must fit M12 (1/2 in)stud,Max. tongue width 31 mm (1.22 in)for a and 23.4 mm (0.92 in)for b. b Ground connection 2 x 50 mm2 (1/0 AWG) Short barrel and tongue with single hole,must fit M6 stud. c Ethernet connection 1 x outdoor rated Cat6 STP, straight- through T568-B pattern f 3 x 21 mm (3/4 in) (two LV and one Ethernet wire per conduit) N/A d 48 V DC input Min.2 x 16 mm2 (6 AWG) Max.2 x 25 mm2 (4 AWG) (two per input, one per pole) North American Requirements Inputs to Power Block Power Block to Each Power Link 1000 AC and Gnd Shunt Trip /EPO HV DC Output 48 V DC Output Ethernet Circuit Voltage 480 V AC <240 V 100 - 1000 V 48 V -- Max.Current 260 A 6 A 200, 250,or 350 A 32 A -- Notes L1,L2,L3, Gnd Rated for 1000 V Outdoor rated Cat6 STP 43 Maximum Wire SizesSUPPLEMENTAL ATTACHMENT FOR GECE RESPONSE ChargePoint, Inc. reserves the right to alter product offerings and specifications at any time without notice, and is not responsible for typographical or graphical errors that may appear in this document ChargePoint, Inc. | Copyright © 2025 2 of 8 Express Plus Power Module Express Plus Power Module Output Max Output Power 40 kW Max Output Current 100 A Power Conversion Efficiency Up to 96% Power Factor 0.99 at full load Express Plus Power Module Specifications Power Module Dimensions 430 mm (H) x 130 mm (W) x 760 mm (L) (1 ft 5 in x 5 in x 2 ft 6 in) Power Module Weight 45 kg (98.5 lb.) Power Module Cooling Liquid Cooled Technology Harmonics iTHD < 5% (Complies with IEEE 519) Express Plus Power Block Express Plus Power Block Input Input Rating 3-phase, 400-480Y VAC, 310-260 A 50/60 Hz (200 kW) Optional: 3-phase, 400-480Y VAC, 255-210 A 50/60 Hz (160 kW) Wiring L1, L2, L3, Earth Short Circuit Current Rating 65 kA Express Plus Power Block Output Max Output Power 200 kW Optional: 160 kW Output Voltage, Charging 100 V – 1000 V Max Current per Output 200 A, 250 A, 300 A, 350 A, 375 A Number of Stations Served One Power Block can serve up to 2 Power Link stations. Additional Power Blocks can be added to serve more stations or increase power output. Maximum Power Modules per Power Block 5 Express Plus Power Block Specifications Power Block Dimensions 2191 mm (H) x 988 mm (W) x 1039 mm (L) (7 ft 3 in x 3 ft 3 in x 3 ft 5 in) Power Block Weight 455 kg (1000 lbs) without Power Modules Power Block Enclosure Rating Type 3R, IP56 SUPPLEMENTAL ATTACHMENT FOR GECE RESPONSE Answer CITY SPECIFICATION NO.DATE:PROJECT TITLE: SHEET TITLE:ofSHEET NO.DESIGNED BY:DRAWN BY:CHECKED BY:APPROVED BY:SCALE:PLAN FILE NO. / LOCATIONBATTERY ELECTRIC BUS CHARGING INFRASTRUCTURE EPEPHGHG05/20/2025200040311APPROVED: __/__/____EXPIRES: 12.31.2025100% CONSTRUCTION DOCUMENTS GECE #2437ELECTRICAL SCHEDULES8PANEL SCHEDULE NOTESPANEL SCHEDULE LOAD TYPE INDEX:"C" = CONTINUOUS LOAD. OPERABLE FOR 3 HOURS OR MORE. LOAD CALCULATED AT 125% OF TOTAL CONNECTED LOAD."K" = KITCHEN APPLIANCE LOAD. SUBJECT TO 75% DEMAND FACTOR PER NEC 220.53 IF GREATER THAN/EQUAL TO FOUR APPLIANCES."M"= MECHANICAL LOAD. NO DEMAND FACTOR APPLIED."R" = RECEPTACLE LOAD."G"= GENERAL LOAD.GENERAL NOTES:-VOLTAGE DROP CALCULATIONS HAVE BEEN PREPARED IN ACCORDANCE TO 2022 CALIFORNIA ENERGY CODE STANDARDS (TITLE 24, ELECTRICAL POWER DISTRIBUTION). CONDUCTOR LENGTH INDICATED SHALL NOT BE USED FOR BIDDING AND PROCUREMENT PURPOSES. FIELD COORDINATECONDUCTOR LENGTH REQUIRED AND NOTIFY ENGINEER OF RECORD OF ANY DISCREPANCIES.-FOR CIRCUITS WITH MULTIPLE LOADS (I.E. RECEPTACLES, LIGHTING) THE CIRCUIT ESTIMATED LENGTH IS DETERMINED BY THE FURTHEST DEVICE LOCATION.-WHERE BRANCH CIRCUITS HAVE NOT BEEN LOADED TO THE MAXIMUM ALLOWABLE CIRCUIT CAPACITY, VOLTAGE DROP CALCULATIONS HAVE BEEN BASED ON CONNECTED LOAD INDICATED, UNLESS OTHERWISE NOTED.-THE IDENTIFICATION OF EVERY CIRCUIT OF A PANELBOARD AND SWITCHBOARD SHALL BE LEGIBLY IDENTIFIED AS TO ITS CLEAR, EVIDENT AND SPECIFIC PURPOSE OR USE AND SHALL INCLUDE SUFFICIENT DETAIL TO ALLOW EACH CIRCUIT TO BE DISTINGUISHED FROM ALL OTHERS (CEC 408.4).-BRANCH CIRCUIT AND FEEDER SIZES HAVE BEEN UP-SIZED TO ACCOMMODATE FOR VOLTAGE DROP. IN THE EVENT THE SPECIFIED CONDUCTOR SIZE EXCEEDS THE LUG OR TERMINAL RATINGS OF EQUIPMENT / DISTRIBUTION, THE CONTRACTOR SHALL REDUCE WIRE SIZE BY EITHER (A)INTERCEPTING THE FEEDER AT A PULL BOX AND CONNECTING TO A REDUCED WIRE GAUGE VIA A SPLICED CONNECTION. NOTE, THE REDUCED WIRE GAUGE SHALL BE ADEQUATELY SIZED BASED ON THE CONNECTED LOAD OF THE EQUIPMENT / DISTRIBUTION AND SHALL NOT EXCEED 5 FEET INLENGTH. OR (B) UTILIZING A UL LISTED CABLE REDUCING ADAPTOR (GREAVESPT-R OR ENGINEERING APPROVED EQUAL).VOLTAGE DROP CALCULATION:VOLTAGE DROP (%) = (2 x OHMS PER 1000 LF x CONDUCTOR LENGTH x AMPS) / (1000 x QTY OF WIRES PER PHASE)SCHEDULE SPECIFIC NOTES:1.REFER TO SINGLE LINE DIAGRAM FOR CIRCUIT BREAKER RATING AND FEEDER SCHEDULE FOR CONDUCTOR SIZE.BID ALTERNATE #1EV CHARGING INFRASTRUCTUREEXPIRES: 12.31.2025 4Electrical Design 4 This section provides electrical site design specifications for the Power Block and Power Link 1000. The default Express Plus installation requires service wiring installed underground.(If a site requires surface mounting,contact ChargePoint before beginning work,to obtain an approved installation method.)Conduit and wire size are determined based on the length of runs from the electrical panel to the station location. Service wiring in conduit,or armored cable,must be run as required to comply with local electrical codes. Consult national and local codes or a project engineer to determine the grade,quality,and size of the conduit or cable. The Power Block is available in 250,300,350,and 500 A versions,each with its own fuses and rating labels. NOTE:All wiring and conduit is supplied by the contractor unless otherwise indicated. Upstream Components Charging stations are considered continuous load devices (EVs draw maximum load for long durations). Therefore,electrical branch circuits to EV chargers must be sized at 125%of the load on each leg of a 3- phase panel for North American installations,in accordance with National Electric Code requirements.For other regions,refer to local code. When planning multiple EV charging stations,it is best practice to segment non-continuous and continuous loads,with all branch circuits for EV charging on a dedicated electrical panel assembly with adequate circuit breakers.When sizing new electrical panels dedicated for EV charging,all branch circuits must support continuous load. Each Power Block requires its own service panel breaker as follows: Nominal Voltage Input Current Rating Branch Circuit Capacity and Breaker Breaker Size Europe:400 V 315 A 350 A or 400 A 400 A North America:480 V 260 A 350 A or 400 A Power Block Breaker Table 39 Project:Project #:25091 Contract #:20000403 RFI #:5 Rev:Date:3/20/2026 Answer Company: Subject Discipline Reference Equipment Wire Sizing ChargePoint Express Datasheet Questions Page 36 - Site Design Guide Suggestions Answer (additional space on following page if needed) Signature Signed Date Battery Electric Bus Charging Infrastructure 919 Palm St. San Luis Obispo, CA 93401 (805) 440-7172 Electrical Sheet 8 Request For Information 005 Equipment EVPL 7,8,9,10 are capable of charging at 250 amps per the attached ChargePoint Express Plus Datasheet and Page 36 of the Power Block and Power Link 1000 Site Design Guide. Feeder wires for EVPL 7,8,9,10 show conductor size of XHHW 3/0. At a 90 deg. C rating, XHHW 3/0 is only rated for 225 amps. Upsize feeder wires to XHHW 4/0, which is rated for 260 amps at 90 deg. C. Upsizing wire to 4/0 will stay within acceptable conduit fill standards. Brett McMickle Newton Construction PO Box 3260 San Luis Obispo, CA 93403 Phone (805) 544-5583 Fax (805) 544-5584 Author Company:Brett Sinkovich City of San Luis Obispo Answer CITY SPECIFICATION NO.DATE:PROJECT TITLE: SHEET TITLE:ofSHEET NO.DESIGNED BY:DRAWN BY:CHECKED BY:APPROVED BY:SCALE:PLAN FILE NO. / LOCATIONBATTERY ELECTRIC BUS CHARGING INFRASTRUCTURE EPEPHGHG05/20/2025200040311APPROVED: __/__/____EXPIRES: 12.31.2025100% CONSTRUCTION DOCUMENTS GECE #2437ELECTRICAL SCHEDULES8PANEL SCHEDULE NOTESPANEL SCHEDULE LOAD TYPE INDEX:"C" = CONTINUOUS LOAD. OPERABLE FOR 3 HOURS OR MORE. LOAD CALCULATED AT 125% OF TOTAL CONNECTED LOAD."K" = KITCHEN APPLIANCE LOAD. SUBJECT TO 75% DEMAND FACTOR PER NEC 220.53 IF GREATER THAN/EQUAL TO FOUR APPLIANCES."M"= MECHANICAL LOAD. NO DEMAND FACTOR APPLIED."R" = RECEPTACLE LOAD."G"= GENERAL LOAD.GENERAL NOTES:-VOLTAGE DROP CALCULATIONS HAVE BEEN PREPARED IN ACCORDANCE TO 2022 CALIFORNIA ENERGY CODE STANDARDS (TITLE 24, ELECTRICAL POWER DISTRIBUTION). CONDUCTOR LENGTH INDICATED SHALL NOT BE USED FOR BIDDING AND PROCUREMENT PURPOSES. FIELD COORDINATECONDUCTOR LENGTH REQUIRED AND NOTIFY ENGINEER OF RECORD OF ANY DISCREPANCIES.-FOR CIRCUITS WITH MULTIPLE LOADS (I.E. RECEPTACLES, LIGHTING) THE CIRCUIT ESTIMATED LENGTH IS DETERMINED BY THE FURTHEST DEVICE LOCATION.-WHERE BRANCH CIRCUITS HAVE NOT BEEN LOADED TO THE MAXIMUM ALLOWABLE CIRCUIT CAPACITY, VOLTAGE DROP CALCULATIONS HAVE BEEN BASED ON CONNECTED LOAD INDICATED, UNLESS OTHERWISE NOTED.-THE IDENTIFICATION OF EVERY CIRCUIT OF A PANELBOARD AND SWITCHBOARD SHALL BE LEGIBLY IDENTIFIED AS TO ITS CLEAR, EVIDENT AND SPECIFIC PURPOSE OR USE AND SHALL INCLUDE SUFFICIENT DETAIL TO ALLOW EACH CIRCUIT TO BE DISTINGUISHED FROM ALL OTHERS (CEC 408.4).-BRANCH CIRCUIT AND FEEDER SIZES HAVE BEEN UP-SIZED TO ACCOMMODATE FOR VOLTAGE DROP. IN THE EVENT THE SPECIFIED CONDUCTOR SIZE EXCEEDS THE LUG OR TERMINAL RATINGS OF EQUIPMENT / DISTRIBUTION, THE CONTRACTOR SHALL REDUCE WIRE SIZE BY EITHER (A)INTERCEPTING THE FEEDER AT A PULL BOX AND CONNECTING TO A REDUCED WIRE GAUGE VIA A SPLICED CONNECTION. NOTE, THE REDUCED WIRE GAUGE SHALL BE ADEQUATELY SIZED BASED ON THE CONNECTED LOAD OF THE EQUIPMENT / DISTRIBUTION AND SHALL NOT EXCEED 5 FEET INLENGTH. OR (B) UTILIZING A UL LISTED CABLE REDUCING ADAPTOR (GREAVESPT-R OR ENGINEERING APPROVED EQUAL).VOLTAGE DROP CALCULATION:VOLTAGE DROP (%) = (2 x OHMS PER 1000 LF x CONDUCTOR LENGTH x AMPS) / (1000 x QTY OF WIRES PER PHASE)SCHEDULE SPECIFIC NOTES:1.REFER TO SINGLE LINE DIAGRAM FOR CIRCUIT BREAKER RATING AND FEEDER SCHEDULE FOR CONDUCTOR SIZE.BID ALTERNATE #1EV CHARGING INFRASTRUCTUREEXPIRES: 12.31.2025 4Electrical Design 4 This section provides electrical site design specifications for the Power Block and Power Link 1000. The default Express Plus installation requires service wiring installed underground.(If a site requires surface mounting,contact ChargePoint before beginning work,to obtain an approved installation method.)Conduit and wire size are determined based on the length of runs from the electrical panel to the station location. Service wiring in conduit,or armored cable,must be run as required to comply with local electrical codes. Consult national and local codes or a project engineer to determine the grade,quality,and size of the conduit or cable. The Power Block is available in 250,300,350,and 500 A versions,each with its own fuses and rating labels. NOTE:All wiring and conduit is supplied by the contractor unless otherwise indicated. Upstream Components Charging stations are considered continuous load devices (EVs draw maximum load for long durations). Therefore,electrical branch circuits to EV chargers must be sized at 125%of the load on each leg of a 3- phase panel for North American installations,in accordance with National Electric Code requirements.For other regions,refer to local code. When planning multiple EV charging stations,it is best practice to segment non-continuous and continuous loads,with all branch circuits for EV charging on a dedicated electrical panel assembly with adequate circuit breakers.When sizing new electrical panels dedicated for EV charging,all branch circuits must support continuous load. Each Power Block requires its own service panel breaker as follows: Nominal Voltage Input Current Rating Branch Circuit Capacity and Breaker Breaker Size Europe:400 V 315 A 350 A or 400 A 400 A North America:480 V 260 A 350 A or 400 A Power Block Breaker Table 39 Project:Project #:25091 Contract #:20000403 RFI #:6 Rev:Date:3/27/2026 Answer Company: Subject Discipline Reference Thermoplastic Striping Change Questions Answer (additional space on following page if needed) Signature Signed Date Battery Electric Bus Charging Infrastructure 919 Palm St. San Luis Obispo, CA 93401 (805) 440-7172 Civil Sheet 2, Note 19 Request For Information 006 Description: Per Construction Keynote 19 on Sheet 2, the Contract Documents indicate that white thermoplastic striping is to be installed at the locations shown on the plans. Upon mobilization of NCM’s striping subcontractor on March 27, 2026, the City of San Luis Obispo representative provided field direction to match existing site conditions. Specifically, the City directed that striping be installed using white reflective paint in lieu of the specified thermoplastic striping. Work Performed: In accordance with the City of San Luis Obispo’s field direction, NCM proceeded with installation of white reflective paint at all locations identified in the field. This work has been completed. Request for Confirmation: Please confirm that the installed striping, as directed in the field, is acceptable. Brett McMickle Newton Construction PO Box 3260 San Luis Obispo, CA 93403 Phone (805) 544-5583 Fax (805) 544-5584 Author Company:Brett Sinkovich City of San Luis Obispo Answer Project:Project #:25091 Contract #:20000403 RFI #:6 Rev:Date:3/27/2026 Answer Company: Subject Discipline Reference Thermoplastic Striping Change Questions Answer (additional space on following page if needed) Signature Signed Date Battery Electric Bus Charging Infrastructure 919 Palm St. San Luis Obispo, CA 93401 (805) 440-7172 Civil Sheet 2, Note 19 Request For Information 006 Description: Per Construction Keynote 19 on Sheet 2, the Contract Documents indicate that white thermoplastic striping is to be installed at the locations shown on the plans. Upon mobilization of NCM’s striping subcontractor on March 27, 2026, the City of San Luis Obispo representative provided field direction to match existing site conditions. Specifically, the City directed that striping be installed using white reflective paint in lieu of the specified thermoplastic striping. Work Performed: In accordance with the City of San Luis Obispo’s field direction, NCM proceeded with installation of white reflective paint at all locations identified in the field. This work has been completed. Request for Confirmation: Please confirm that the installed striping, as directed in the field, is acceptable. Brett McMickle Newton Construction PO Box 3260 San Luis Obispo, CA 93403 Phone (805) 544-5583 Fax (805) 544-5584 Author Company:Brett Sinkovich City of San Luis Obispo Answer