tnb06_wrtrm_secc_p48_49 8/9/07 11:40 AM Page C-48 Mechanical Mechanical Parallel Groove Connectors Easy to install — no special tools required. Type PC — Two-Bolt Parallel Groove Clamp • Made of high-strength copper alloy 25⁄16" ⁄8" 5 ⁄64" 5 ⁄8" 3 • Hex head bolts with square shank of silicon bronze • Spring washers also of silicon bronze • Square shank bolts prevent turning while tightening 2" • Contour of casting permits use of socket wrench if desired • Large contact area increases conductance • Not recommended for use with aluminum conductor CAT. NO. PC250 13⁄4" CONDUCTOR RANGE AWG OR KCMIL (IN.) MAIN TAP MAX. MIN. MAX. MIN. 250 Str. 4 Sol. 250 Str. CONDUCTOR DIAMETER A 4 Sol. One size fits all requirements from #8 solid copper to 1/0 ACSR or 2/0 copper. Type K — Jumper Clamps B MAX. MIN. MAX. MIN. .575 .204 .575 .204 PLATED GROOVE MAX. MIN. CAT. NO. COPPER GROOVE MAX. MIN. Plated with plating removed from one groove 121⁄64" K1 11⁄8" 1/0 ASCR 2 SCG amerductor 7 ⁄16 galv. strand 2/0 str. copper 7 ⁄16 Copperweld* 2A Copperweld* 6 ACSR 12SCG amerductor 8 solid iron For use with aluminum, amerductor or galvanized steel strand to copper or copper-bonded steel wires. Clamp plated EITHER GROOVE MAX. MIN. CAT. NO. 19⁄32" K2 1/0 ACSR 2 SCG amerductor 7 ⁄16 galvanized steel strand 6 ACSR 12 SCG amerductor 8 solid iron For use with amerductor, aluminum or galvanized steel stranding. • Cast of high-strength copper alloy Clamp, not plated • Furnished with silicon bronze hex washer head bolt • Parallel groove design — no need to remove bolt for installation • Available plated, unplated or with plating in one groove C-48 www.tnb.com United States Tel: 901.252.8000 800.816.7809 Fax: 901.252.1354 2/0 str. copper ⁄16 copperweld* 2A copperweld* K3 7 For copper-to-copper connections. * Trademark of Copperweld. Canada Tel: 450.347.5318 Fax: 450.347.1976 Technical Services Tel: 888.862.3289 8 solid copper 91⁄2D copperweld* etc. 8 solid copper 9-12D Copperweld* etc.