® Grounding Systems EZGround Clamps Waterpipe Ground Clamps Waterpipe Ground Clamps Waterpipe Ground Clamps Ground Ground Ground Cat. No. Water Pipe Size Cat. No. Water Pipe Size Cat. No. Water Pipe Size Wire Size Wire Size Wire Size 3902BU* 1/2 in.–1 3902 1/2 in.–1 1/2 in., 3/4 in., 1 2-TB or rebar 4-10 3903BU* 1-1/4 in.–2 in. 3903 1-1/4 in.–2 in. 3904BU* 2-1/2 in.–3-1/2 in. 3-TB 1-1/4 in., 1-1/2 in. or 2 in. 3904 2-1/2 in.–3-1/2 in. #6, #4, #2 AWG 3905BU* 4 in.–5 in. 4 2-1/2 in., 3 in. or 3-1/2 in. 3905-TB 4 in.–5 in. #4–4/0 AWG #4–4/0 AWG 3906BU* 6 in. 5-TB 4 in., 4-1/2 in. or 5 in. 3906-TB 6 in. 3849 3826 3907BU* 8 in. 3907 8 in. 6 6 in. Malleable iron crossbar, steel U-Bolt c/w copper cable clamp with 3908BU* 10 in. 3908 10 in. serrations. 3909BU* 12 in. 3909-TB 12 in. Material: Bronze U-bolt and nut c/w bronzed aluminum cap and Material: Steel U-bolt and nut c/w bronzed aluminum cap and crossbar with a brite dip finish. *UL Listed for Direct Burial. crossbar cadmium plated plus gold chromate finish. 3840 3849 3826 3844 For armored and unarmored wires. 3826 3840 3849 3826 3844 3840-TB Ground Clamps for K&L Grade For armored and unarmored wire Ground Clamps Copper Tubing Only Water Pipe, Ground Water Pipe, Copper Cat. No. Material Cat. No. Ground Wire Size Copper Tubing Size Rod Size Tubing Size 3826* Malleable Iron 3844* 1/2 in.–1 3840 1/2 in., 3/4 in. 1/2 in.–1 #8–#4 AWG 3846* Bronze 3888** 1/2 in.–1 also rebar 4–10 * With Steel Screws. 3840-TB• Malleable Iron 1/2 in., 3/4 in. or 1 ** UL approved for direct burial. Silicon Bronze Screws. 3844 * For unarmored copper wires #6, #4 AWG. UL approved for direct burial. For armored and unarmored wire • #8 thru #4 AWG. Not CSA Certified 3844 For armored and unarmored wire Ground Clamp Accessories Cat. No. Description For use with Cat. No. For use with 10102-TB 10105 Single conductors #4 solid to 2/0 str. 1-1/4 to 1-1/2 in. cables #8–#2 Ground wire 10109 Material: Malleable iron, zinc plated. Single conductors 2/0 solid to 4/0 str. w w w .tnb .c a D7 SectionD-grounding-systems.indd 7 6/6/2017 9:43:04 AM ® EZGround Grounding Systems Clamps Type JAB — Ground Rod Clamps • Cast of high-strength corrosion resistant copper alloy • Both hex head and socket set screws available • Long bearing surface of clamp on ground wire secures ground connection • Listed for direct burial A Max. D C DB Cat. No. Nominal Rod Dia. Wire Range Dimensions (in.) A A Screw Socket Set Hex Head Max. Min. (in.) (mm) Max. Min. (Max.) (Max.) Thread B C D 2 2 Screw Bolt (mm ) (mm ) Socket Screw Hex Bolt Size UNC-2A JAB12* JAB12H 1/2 12.7 2 str. 10 sol. 33.6 5.2 1-19/32 2-3/32 27/32 7/8 19/32 JAB58 JAB58H 5/8 15.8 1-27/32 2-13/64 29/32 11/16 1/0 str. 53.4 1 JAB34 JAB34H 3/4 19.0 2 7/16-14 11/16 51/64 8 sol. 8.3 2-11/32 – JAB34C 3/4 + 5/8 15.8 to 19.0 95.0 – 1-1/8 1-1/32 13/16 3/0 str. JAB1 JAB1H 1 25.0 107.1 2-1/4 3 1-11/32 1-1/16 1 * CSA not applicable. Add suffix P to Cat. No. for tin-plated clamp. Type G — Budget Line Ground Clamps • A dependable ground connection offered at a substantial saving • Cast of high-strength corrosion-resistant copper alloy • Hex head bolts • Simplified compact design will make a lasting, trouble-free connection • Listed for direct burial E E DB Nominal Rod Dia. Wire Range Dimensions (in.) A Screw Cat. No. Max. Min. A (in.) (mm) Max. Min. (Max.) Thread Size B C D E 2 2 Max. (mm ) (mm ) Bolt UNC-2A D G3* 3/8 9.5 4 str. 21.1 1-3/8 5/16-18 11/16 1/2 27/64 3/8 G4 1/2 12.7 27/32 37/64 10 sol. 5.2 G5 5/8 15.8 2 str. 33.6 – 3/8-16 29/32 3/8 43/64 1/2 C B G6 3/4 19.0 1-1/16 13/16 * Not U.L. Listed and CSA not applicable. Add suffix P to Cat. No. for tin-plated clamp. w w w .tnb .c a D8 SectionD-grounding-systems.indd 8 6/6/2017 9:43:05 AM ® Grounding Systems EZGround Clamps Budget Price Cast Bronze Clamp Similar to aluminum water pipe clamp but lighter in construction B A Max. C Conductor Range Dimensions (in.) Water Pipe Cat. No. Size (in.) Max. Min. A B C JJR 1/2 to 1 #4 str. #10 sol. 1-19/32 27/32 7/8 Add suffix C to Cat. No. to specify plating. Type JDLI — Direct Burial Ground Clamp Lay-in feature reduces installation time for difficult bends or continuous loops of ground wire • UL Listed for direct burial in earth/concrete • UL Listed for connection to ground rod, pipe or rebar up to 1 • Constructed from bronze alloy and high-performance stainless steel bolts • Designed for easy installation of difficult bends or continuous loops DB Ground Rod Conductor Mech. Conn./ Cat. No. Pipe Size Rebar Size Size Range Splice (UL Listed) JDLI 1/2 in.–1 3/8 in.–1 1/4 in.–1 #10 sol.–#2 str. (2) #8 sol. w w w .tnb .c a D9 SectionD-grounding-systems.indd 9 6/6/2017 9:43:06 AM ® EZGround Grounding Systems Clamps Type JWR — Wide-Range Ground Rod Clamp • Listed for direct burial in earth/concrete • Constructed from bronze alloy and high-performance stainless steel bolt • Provides wide range of connection sizes • More than 300 lb. torque capacity E E DB A Nominal Rod Dia. Wire Range Dimensions (in.) Max. Cat. No. 2 2 D (in.) (mm) Max. Min. Max. (mm ) Min. (mm ) A (Max.) Bolt B C D 3/8* 9.5 1/2 12.7 5.2 JWR 1/0 str. 10 sol. 53.4 1.535 1.050 0.812 0.652 C B 5/8 15.8 3/4 19.0 8.3 * 3/8 in. rod CSA not applicable/Listed by UL. Types GG and GGH — Heavy Duty Ground Rod Clamps • Cast of high-strength corrosion-resistant copper alloy; two types of screws available • Type GG has a socket set screw • Type GGH has a hex head bolt • Floating pressure bar distributes pressure evenly over a large area of the ground wire • Axial groove keeps wire and rod in perfect alignment A Max. A Max. C B C B Cat. No. Nominal Rod Dia. Wire Range Dimensions (in.) Socket Set Hex Head A (Max.) A (Max.) Screw Thread 2 2 (in.) (mm) Max. Min. Max. (mm ) Min. (mm ) B C Screw Bolt Socket Screw Hex Bolt Size UNC-2A GG12 GG12H 1/2 12.7 2 str. 33.6 1-13/64 1-13/16 27/32 7/16-14 15/16 GG58 GG58H 5/8 15.8 2/0 str. 8 sol. 53.6 8.3 1-51/64 2-7/32 61/64 – GG34H** 3/4 19.0 4/0 str. 120.6 – 3 1/2-14 1-3/8 1-1/4 ** CSA not applicable. GG34H has no pressure bar or axial groove. Add suffix P to Cat. No. for tin-plated clamp. w w w .tnb .c a D10 ® Grounding Systems EZGround Clamps Budget Price Cast Bronze Clamps Type swings 360° for ease of alignment • Pipe clamping portion identical to “JA” clamp • Pressure-bar type conduit hub adjusts to fit 1/2 in. or 3⁄4 in. EMT, or 1/2 in. rigid conduit • Brass washer provides positive contact with grounding conductor • Furnished with zinc-plated screws Conductor Range Conduit Water Pipe Cat. No. Size Size Max. Min. JPT 1/2 in. to 1 1/2 in. or 3/4 in. EMT JPT2 1-1/4 in. to 2 in. #6 sol. #10 sol. 1/2 in. Rigid JPT4 2-1/2 in. to 4 in. Cast Bronze Clamps For connecting armored cable to water pipe • Clamping portion similar to standard “J” clamp • Special pressure bar grips armor or outer cable insulation to reduce chance of grounding conductor being pulled out • Furnished with zinc-plated screws Conductor Range Dimensions (in.) Water Cat. No. Pipe Max. Min. A B C D E G Size (in.) JA 1/2 to 1 2-3/4 2-11/32 25/32 JA2 1-1/4 to 2 #6 sol. #10 sol. 3-3/4 3-1/2 13/16 2-9/32 15/32 1-3/8 JA2124 2-1/2 to 4 6 6-5/16 1 Add suffix C to Cat. No. to specify plating. D G E A Max. B C w w w .tnb .c a D11 SectionD-grounding-systems.indd 11 6/6/2017 9:43:08 AM ® EZGround Grounding Systems Clamps Cast Bronze Clamps for Conduit For grounding rigid conduit systems • Continuity from rigid conduit system to ground provided by cast bronze threaded conduit hub • Hub swings 360° for easy alignment • Heavy brass washer protects clamped grounding conductor • Furnished with zinc-plated screws • Cast bronze pipe clamping portion identical to that used in “JA” clamp DB G E Conductor Range Dimensions (in.) Conduit Water Pipe Cat. No. Size (in.) Size (in.) Max. Min. A B C D E G JP12 1/2 to 1 2-3/4 2-11/32 23/32 JP212 1/2 1-1/4 to 2 #6 sol. 3-3/4 3-1/2 13/16 1-9/64 1 2-1/2 D JP212412 2-1/2 to 4 6 6-5/16 1 JP34 1/2 to 1 2-3/4 2-11/32 23/32 3/4 #2/0 str. #10 sol. 1-1/4 2-3/16 JP234 1-1/4 to 2 3-3/4 3-1/2 13/16 A JP1 1/2 to 1 2-3/4 2-11/32 23/32 2-5/16 JP21 1 1-1/4 to 2 #3/0 str. 3-3/4 3-1/2 13/16 1-1/2 2-3/8 JP21241 2-1/2 to 4 6 6-5/16 1 Add suffix C to Cat. No. to specify plating. B C Cast Bronze Clamps with Copper Strap Flexible copper strap makes alignment easy • For grounding rigid conduit systems • Same features as “JP” clamp plus flexible copper strap • Strap helps protect conduit system from water system vibrations • Furnished with zinc-plated screws Conductor Range Conduit Size Water Pipe Cat. No. (in.) Size (in.) Max. Min. JPS12 1/2 6 sol. JPS34 3/4 1/2 to 1 2/0 str. 10 sol. JPS1 1 3/0 str. Add suffix C to Cat. No. to specify plating. w w w .tnb .c a D12 SectionD-grounding-systems.indd 12 6/6/2017 9:43:08 AM ® Grounding Systems EZGround Clamps Cast Bronze Ground Clamps Connect copper ground wire to water pipe, copper tubing or ground rods • High-strength, high-conductivity copper alloy (over 80% copper) • UL Approved for direct burial DB Cat. No. Water Pipe Size (in.) Conductor Range JD 1/2 to 1 #2 str.–#10 str. J2D 1-1/4 to 2 Type J — Cast Bronze Ground Clamps For connecting grounding conductor to water pipe or copper tube • Cast of high-strength, highly conductive copper alloy • Screws plated for corrosion resistance • UL Listed Conductor Range Dimensions (in.) Water Pipe Cat. No. Size (in.) Max. Min. A B C J 1/2 to 1 2-3/4 2-11/32 23/32 J2BB 1-1/4 to 2 3-3/4 3-1/2 13/16 2 str. 10 sol. J2124 2-1/2 to 4 6 6-5/16 1 J6 4-1/4 to 6 7-1/4 8-1/8 C B A (Max.) w w w .tnb .c a D13 SectionD-grounding-systems.indd 13 6/6/2017 9:43:09 AM ® EZGround Grounding Systems Clamps Type GUV — U-Bolt Clamps • Listed for direct burial in earth or concrete • For connecting copper or copper clad steel grounding conductor to ground rod or pipe or rebar • Excellent for connecting multiple electrodes with a single cable as in substation grounding • GUV body components are cast or forged from copper alloy and U-Bolts are stainless steel • Specially designed spacer provides proper alignment between cable and electrode and affords more positive contact area A DB Conductor Range (Cu) Nominal Rod Size (in.) IPS Pipe Size (in.) Dimensions (in.) Cat. No. Max. Min. Max. Min. Max. Min. A B C GUV584 4 8 B C B GUV5821 2/0 4 3/4 5/8 3/8 – 2-13/16 2-1/4 GUV5825 250 2/0 GUV784 4 8 GUV7821 2/0 4 1 7/8 3/4 1/2 2-3/4 2-5/8 GUV7825 250 2/0 GUV1184 4 8 1-1/4 1-1/8 1 3-5/16 2-3/4 GUV11821 2/0 4 GUV1384 4 8 GUV13821 2/0 4 1-1/2 1-3/8 1-1/4 3-7/16 2-15/16 GUV13825 250 2/0 GUV1584 4 8 1-9/16 GUV15821 2/0 4 1-7/8 1-5/8 1-1/2 3-15/16 3-3/16 GUV15825 250 2/0 GUV204 4 8 – GUV2021 2/0 4 2-3/8 2 2 4-7/16 3-11/16 GUV2025 250 2/0 GUV21221 2/0 4 2-7/8 2-1/2 2-1/2 4-15/16 4-3/16 GUV21225 250 2/0 GUV3021 2/0 4 3-1/2 3 3 5-9/16 4-13/16 GUV3025 250 2/0 GUV31221 2/0 4 4 3-1/2 3-1/2 6-1/16 5-1/2 GUV4021 2/0 4 4-1/2 4 4 6-5/16 5-11/16 GUV4025 250 2/0 For tin-plated, add suffix TP to Cat. No. w w w .tnb .c a D14 SectionD-grounding-systems.indd 14 6/6/2017 9:43:10 AM A C ® Grounding Systems EZGround Clamps Technical Specifications Ground Wire Size (AWG) Cat. No. Water Pipe Size (in.) Galv. Steel Copper Clad Min. Max. Ground Clamps (Zinc alloy body / Steel screws) CI3106 CI3106 1/2 to 1 10 sol. 2 str. 5/8 to 1* N/A Ground Clamps (Zinc / Steel) CI3108 1/2 to 1 10 sol. 2 str. 5/8 to 1* N/A For connecting grounding conductor to either galvanized steel rod or water pipe. Ground Clamps (Brass body / Brass screws) CI3110U 1/2 to 1 10 sol. 2 str. 5/8 to 1* 5/8 to 1 For connecting grounding conductor to either galvanized steel rod, copper clad or water pipe. CSA approved for wet locations and for direct burial. Ground Clamps (Brass body / Brass screws) CI3108 CI3112U 1-1/4 to 2 10 sol. 2 str. – – For connecting grounding conductor to water pipe. CSA approved for wet locations and for direct burial. Ground Rod Clamps (Bronze body / Brass screws) CIGRC58 10 sol. 2 str. 5/8 5/8 N/A CIGRC34 8 sol. 1/0 str. 3/4 3/4 For connecting grounding conductor to either galvanized steel rod or copper clad rod. CSA approved for wet locations and for direct burial. *Reversible. CI3110U CI3112U CIGRC58 w w w .tnb .c a D15 SectionD-grounding-systems.indd 15 6/6/2017 9:43:11 AM ® EZGround Grounding Systems Clamps Type GTC — Tower Ground Clamps • Bolt has square shank to prevent turning and allow clamp to be tightened with one wrench • GTC 23 and 24 are two-piece clamps for connecting ground lead cable to flat metal surface; ideal for grounding substations on tower footings • Castings are of high-strength, corrosion resistant copper alloy A G • GTC 13 and 14 are economical one-piece clamps which perform the same function as two-piece clamps except the under pad support is omitted and conductor is connected directly to tower E • Add suffix L to Cat. No. for 1/2 in. channel thickness R H D Type GTC 13 and 14 A G Conductor Range Dimensions (in.) Channel Cat. No. Thickness Max. Min. Max. Min. A B D E G H R 2 2 (in.) (mm ) (mm ) E GTC13 2/0 str. 4 sol. 67.4 21.1 1-15/32 9/16 1-21/32 13/32 3/8 7/32 – B GTC14 250 kcmil 2/0 str. 126.6 67.4 1-15/16 3/4 1-15/16 1-13/32 1/2 5/16 1/4 GTC23 2/0 str. 4 sol. 67.4 1-41/64 7/16 9/16 2-21/32 1-3/32 3/8 21.1 – GTC24 250 kcmil 2/0 str. 126.6 1-61/64 5/8 3/4 1-15/16 1-3/8 1/2 H D Type GTC 23 and 24 CTG250 — Wide Range Tower Ground Clamp • For use with aluminum or copper conductors and in aluminum or galvanized steel cable tray • Ribbed neck on the bolt prevents rotation during tightening if 0.440 dia. hole is used 3/8 Nut Height Width Depth Nut Cat. No. Wire Range (2 sides) (in.) (in.) (in.) (Flats) Split Washer CTG250 #2 sol. (0.258 Dia.), 250 kcmil (0.575 Dia.) 1.95 2.00 1.13 0.560 Flat Washer 3/8 Bolt with Ribbed neck and Phillips recessed head Tin-plated body. Galvanized hardware. w w w .tnb .c a D16 SectionD-grounding-systems.indd 16 6/6/2017 9:43:12 AM ® Grounding Systems EZGround Clamps I-Beam Ground Clamps Connect ground cable to I-Beam or any 1 in. maximum structural steel member — without welding or drilling • Breakaway bolt head shears at predetermined torque to ensure tight connection • Heavy-duty compression lug provides excellent current carrying capabilities • S urface of steel must be cleaned in accordance with installation instruction sheet provided with product • Connector made of high-conductivity cast copper bright dip • Clamp made of drop-forged high-grade steel, zinc-plated TBM15I, TBM15 Installing Die Cat. No. Wire Range Tool, Die Code Cat. No. IBG2-10 2 thru 1/0 AWG 66H 15534SS 2 IBG20-40 2/0 thru 4/0 AWG 76 15506SS 2 IBG350-500 350 kcmil thru 500 kcmil 115H 15504SS 2 Hydraulic tooling with hex crimp dies. Number of crimps. * Use 15500TB adaptor for TBM15-Ton Tool. Ground Clamps For permanent, reliable connection • Crimp to cable • Clamp to ground rod and rebar ® • Use standard Color-Keyed hand and hydraulic tools • Colour-coded for easy installation die selection • Made from high-conductivity wrought copper • Furnished with stainless steel hardware, 1/4 in. washers, bolts and nuts DB Ground Rod Die Code Cat. No. Wire Size Rebar (in.) Bolt Size (in.) Diameter (in.) and Colour 33 Brown CC2C-45R #2–#3 AWG 1/2 or 5/8 0.80 0.25 CC1C-45R #1 AWG 37 Green CC10C-56R 1/0 AWG 42 Pink CC20C-56R 2/0 AWG 5/8 or 3/4 0.83 0.38 45 Black CC40C-56R 4/0 AWG 54 Purple UL Approved for direct burial. w w w .tnb .c a D17 SectionD-grounding-systems.indd 17 6/6/2017 9:43:13 AM ® EZGround Grounding Systems Clamps Flat-Surf H ace Ground Clamps Terminate or connect continuous runs of copper cable to flat surfaces C G D • Captive “Keeper bar” design extends cable range and helps hold cable prior Bolt size to crimping, facilitating installation • Saddles marked with conductor size and die code • Conductor can be assembled to saddle with standard dies and hydraulic tools • Made from high-conductivity cast copper H H C C G G D D Bolt size Bolt Size DB Hex Die Dimensions in. (mm) Bolt Wire Die Code Std. Wt. Cat. No. Hole Qty. Die Code Range No. Pkg. Per 100 Cat. No. L1 L2 D C H (in.) No. 53055FL 1/0–2/0 AWG 66 75 15534* 66 4.09 (103.9) 3.66 (93.0) 0.28 (7.1) 3/8 2 10 1.38 (35.1) 1.00 (25.4) 53065FL 4/0–250 kcmil 87H 112 15506** 87H 4.50 (114.3) 4.09 (103.9) 0.31 (7.9) * TBM14M, 13100A, TBM15I with hex crimp dies. ** TBM15I with hex crimp dies only. Grid-to-Fence Ground Clamps Bond copper conductors to steel or aluminum fence post or top rail of round fence posts • Provide quick, dependable installation at low installed cost • Use no incendiary materials • Body made from cast copper alloy with steel U-bolt Ground Steel and Aluminum Line Cat. No. Die Code Cable Range Post Range (in) FG2040R2 2.00 FG2040R25 2/0–3/0–4/0 76 2.50 FG2040R3 3.00 FG210R2 2.00 FG210R25 2–1–1/0 66 2.50 FG210F3 3.00 Install with hydraulic tooling with hex crimp dies. w w w .tnb .c a D18 SectionD-grounding-systems.indd 18 6/6/2017 9:43:14 AM