TRANSMITTAL LETTER. As Builts Change Order Contract Copy of Letter Insurance. For approval Approved as submitted Resubmit copies for approval

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5 Redwood City Electric, Inc. TRANSMITTAL LETTER To: Transworld Construction, Inc Folsom Street San Francisco, CA Date: 05/31/12 Job #: 9340 Regarding: SFO DATA CENTER Attn: Rob Acero We are sending you: As Builts Change Order Contract Copy of Letter Insurance O& M Manuals Plans Samples Submittals Manuals Copies Date Description 1 of 1 05/31/ Grounding These are transmitted as checked below: For approval Approved as submitted Resubmit copies for approval For your use Approved as noted Submit copies for distribution As required Return for correction Return copies approved or corrected For review and comment FOR BIDS DUE PRINTS RETURNED AFTER LOAN TO US Remarks: Copy to: Job File Signed: Tony Maisano 2775 Northwestern Parkway, Santa Clara, California Phone: (408) Fax: (408) Electrical Contractors State License Number

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7 Insulated Ground Bushings - Feed Through Lugs PC 5590 Insulated Ground Bushings See new products at lhdottie.com Ground bushings with feed through lugs are used to terminate threaded rigid conduit or IMC to an enclosure. A 90 C Cu/Al dual rated feed through lug is provided for grounding jumper to neutral bus bar. CAT NO UPC SIZE RANGE STD MSTR WT/STD UNIT GB /2" 14 Sol to 4 Str # C GB /4" 14 Sol to 4 Str # C GB " 14 Sol to 4 Str # C GB /4" 14 Sol to 4 Str # C GB /2" 14 Sol to 2 Str # C GB " 14 Sol to 2 Str # C GB /2" 14 Sol to 1/0 Str # C GB " 14 Sol to 1/0 Str # C GB /2" 14 Sol to 2/0 Str # C GB " 14 Sol to 2/0 Str # C Insulated Ground Bushings - Lay In Lugs PC 5600 Insulated Ground Bushings Ground bushings with lay-in lugs are used to terminate threaded rigid conduit or IMC to an enclosure. A 90 C Cu/Al dual rated lay in lug is provided for grounding jumper to neutral bus bar. CAT NO UPC SIZE RANGE STD MSTR WT/STD UNIT GBL /2" 14 Sol to 4 Str # C GBL /4" 14 Sol to 4 Str # C GBL " 14 Sol to 4 Str # C GBL /4" 14 Sol to 4 Str # C GBL /2" 14 Sol to 2 Str # C GBL " 14 Sol to 2 Str # C GBL /2" 14 Sol to 1/0 Str # C GBL " 14 Sol to 1/0 Str # C GBL /2" 14 Sol to 1/0 Str # C GBL " 14 Sol to 1/0 Str # C Ground Rod Driver PC 6550 UL Listed Die Cast Feed Through UL Listed Die Cast Lay in Lug Ground Rods (Copper Bonded) PC 5610 UL Listed Copper Bonded Caution! Always Wear Eye Protection No Need For Ladders Or Sledge Hammers! Caution! Always Wear Eye Protection Cu/Al (Copper/ Aluminum) Cu/Al (Copper/ Aluminum) Ground rods are available in 1/2", 5/8" and 3/4" diameters and in 8' and 10' lengths. The copper exterior is molecularly bonded to nickel sealed, high strength steel cores. Copper jacket plating thickness exceeds UL & ANSI specs of.010". CAT NO UPC SIZE STD MSTR WT/STD UNIT GR /2 x 8' # Ea GR /2 x 10' # Ea GR /8 x 8' # Ea GR /8 x 10' # Ea GR /4 x 8' # Ea GR /4 x 10' # Ea Install ground rod from ground level. Sliding action drives rod without need of hammer. Driver will not deform end of rod. Heavy duty construction provides maximum driving forces, while soft rubber ergonomic grip provides user comfort. CAT NO UPC DESCRIPTION STD MSTR WT/STD UNIT GRD ' Driver with insert for 5/8" Ground Rod # Ea GRD ' Driver with insert for 3/4" Ground Rod # Ea Insert Only GRDI Insert only for 5/8" Ground Rod # Ea GRDI Insert only for 3/4" Ground Rod # Ea C19 FITTINGS & STAMPINGS > INSULATED GROUND BUSHINGS > GROUND RODS > GROUND ROD DRIVER

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19 Connectors SPLIT BOLT, POST & TAP CONNECTORS COPPER & CAST BRONZE TERMINAL LUGS TYPE TL A 1B CATALOG NO. UPC CODE MAX. WIRE RANGE MIN. LENGTH HEIGHT WIDTH BOLT HOLE SIZE AMP. NEC. FIG. NO. CARTON TL str 14 sol / TL str 14 sol / TL1/ /0 str 4 sol / A TL MCM 1/0 str / A TL MCM 4/0 str / B TL MCM 500 str / B TL1/0-L /0 str 4 sol / TL250-L MCM 1/0 str / TL 500-L MCM 300 MCM / TL1000-L MCM 750 MCM / TL250-2L MCM 4/0 str / TL500-2L MCM 300 MCM / TL500-2L MCM 300 MCM / TL1000-2L MCM 750 MCM / TL250-3L MCM 4/0 str / TL500-3L MCM 300 MCM / TL500-3L MCM 300 MCM / TL1000-3L MCM 750 MCM / TL250-4L MCM 4/0 str / TL500-4L MCM 300 MCM / TL500-4L MCM 300 MCM / TL1000-4L MCM 750 MCM / QTY. SHPG. WT. LBS./ NSi

20 Bare Wire Bare Copper Soft Drawn Bare Copper Wire Meets or Exceeds ASTM-B3, ASTM-B8, or ASTM-B787 APPLICATIONS For use in overhead transmission and distribution applications. Also for use in grounding applications. CONDUCTORS Solid conductors uncoated copper per ASTM-B3 Stranded conductors 8 AWG 2 AWG and 250 MCM 750 MCM uncoated copper per ASTM-B3 and ASTM-B8 Stranded conductors 1 AWG 4/0 AWG uncoated copper conductors per ASTM B3 and ASTM-B787 INDUSTRY STANDARDS ASTM B3 ASTM B8 ASTM-B787 RoHS Compliant 2010, Cerro Wire LLC All Rights Reserved MADE IN THE USA REV-07/2010 Electrical Division: FAX Consumer Markets Division: FAX A Marmon Wire & Cable/ Berkshire Hathaway Company

21 Bare Wire Bare Copper Soft Drawn Bare Copper Wire PRODUCT CODE NUMBER AWG SIZE NO. OF STRANDS CLASS B STRAND DIAM. EACH INCHES APPROX. OVERALL DIAM. INCHES APPROX. NET WT. LBS./M FT. UPC CODE S 12 SOLID S 10 SOLID J 8 SOLID P 8 SOLID I 6 SOLID A 6 SOLID A3 6 SOLID B 6 SOLID K 6 SOLID P 6 SOLID A 4 SOLID A3 4 SOLID B 4 SOLID H 4 SOLID J 4 SOLID K 4 SOLID D 2 SOLID J K A A B K I A A B H K D K J 1/ , K 1/ , J 2/ , K 2/ , J 3/ , K 3/ , J 4/ , K 4/ , REV-07/2010 Electrical Division: FAX Consumer Markets Division: FAX A Marmon Wire & Cable/ Berkshire Hathaway Company

22 Bare Wire Bare Copper Soft Drawn Bare Copper Wire PACKAGE CODE A3 A B D H I J K P S* X* AWG 15' 25' 50' 125' 200' 315' 500' 1,000' 5,000' SPEC SPEC SIZE COIL COIL COIL SPOOL SPOOL SPOOL REEL REEL REEL SIZE CUT AVAIL. 8 SOLID X X 6 SOLID X X X X X X 4 SOLID X X X X X X 2 SOLID X 8-7 STR X X 6-7 STR X X X X X 4-7 STR X X X X X 3-7 STR 2-7 STR X X 1-19 STR 1/0-19 STR X X 2/0-19 STR X X 3/0-19 STR X X 4/0-19 STR X X STR X STR X STR X STR X 12-7 STR 1,250' REEL 10-7 STR 800' REEL * No special cuts less than 50' REV-07/2010 Electrical Division: FAX Consumer Markets Division: FAX A Marmon Wire & Cable/ Berkshire Hathaway Company

23 Grounding SOLID OR STRANDED WIRE GROUNDING PIGTAILS & GREEN GROUNDING CLIPS SOLID WIRE GROUNDING PIGTAILS AND SCREWS Pigtails are insulated conductors supplied with an attached ground screw on one end and the insulation stripped back one inch on the other end. Meets requirements of NEC. A great labor saver. CATALOG NO. UPC CODE DESCRIPTION SHPG. WT. LBS./100 STANDARD PACKAGE PG 14 H inch 14 AWG solid with hex screw - green 3 50 PG 14 H-D inch 14 AWG solid with hex screw - green 2 5 PG 12 H inch 12 AWG solid with hex screw - green 3 50 PG 12 H-D inch 12 AWG solid with hex screw - green 2 5 PG 14 C inch 14 AWG solid with combo screw - green 2 50 PG 12 C inch 12 AWG solid with combo screw - green 3 50 PG 12 C inch 12 AWG solid wtih combo screw - green 3 50 PG 12 CB inch 12 AWG solid with combo screw - black 3 50 PG 12 CW inch 12 AWG solid with combo screw - white 3 50 GSH hex head green grounding screw GSC combo slotted hex screw STRANDED WIRE GROUNDING PIGTAILS COMPLETE WITH RING AND SPADE TERMINAL Green insulated conductors supplied with a spade terminal on one end and a ring terminal with a captive green-dyed screw on the other end. 65 strand #12 awg and 41 strand #14 awg for maximum flexibility. Available with round, hex head or combo screw. CATALOG NO. UPC CODE DESCRIPTION SHPG. WT. LBS./100 STANDARD PACKAGE PG 12 SR inch 12 AWG (65W) stranded with round screw 4 50 PG 14 SC inch 14 AWG (41W) stranded with combo slotted screw 3 50 PG 12 SC inch 12 AWG (65W) stranded with combo slotted screw 4 50 PG 12 SH inch 12 AWG (65W) stranded with hex screw 4 50 GREEN GROUNDING CLIPS CAT. NO. UPC CODE DESCRIPTION SHPG.WT. LBS./100 PACKAGING CARTON GGC green grounding clips CASE 253 NSi

24 Die Cast Ground Clamp 8M24 TYPE DCGC Features Manufactured from die cast zinc alloy UL Listed Assembled with zinc plated steel hardware Benefits Provides maximum durability while providing economy Ensures reliability for copper conductor Provides corrosion resistance L W H Catalog Conduit Ground Number Size Wire Range L W H DCGC-1 1/2, 3/4, /64 1-3/8 1-1/2 All wire sizes, unless noted otherwise, are American Wire Gauge (AWG) UL File E G G Madison Road, Cincinnati, Ohio Phone Fax Web site Canada 1050 Lakeshore Road East, Mississauga, Ontario, Canada L5E1E4 Phone Fax

25 Cast Brass Ground Clamp 8M24 LR TYPE BGC Features Manufactured from cast brass UL Listed and CSA Certified Type BGC-DB supplied with stainless steel or silicon bronze hardware Benefits Provides maximum conductivity and strength Ensures reliability for copper conductor BGC-1DB and BGC-2DB are suitable for direct burial in earth or concrete. Can be used to ground swimming pools and spas. L W H G Catalog Pipe Ground Wire Dimensions Number Size Range L W H BGC-1 1/2, 3/4, / /32 1-1/2 BGC-2 1-1/4, 1-1/2, /16 2-1/4 2 BGC-1DB* 1/2, 3/4, / /32 1-1/2 BGC-2DB* 1-1/4, 1-1/2, /16 2-1/4 2 All wire sizes, unless noted otherwise, are American Wire Gauge (AWG) * Suitable for direct burial in earth or concrete. UL File E G 4730 Madison Road, Cincinnati, Ohio Phone Fax Web site Canada 1050 Lakeshore Road East, Mississauga, Ontario, Canada L5E1E4 Phone Fax