GROUNDING & JUMPER EQUIPMENT 1210 Ground Clamps for Substation Grounding Bronze 21056 21546-1 • Grounding clamps with integrated tested attachment lugs allow crews to connect standard portable grounding sets directly to large substation bus while maintaining full fault current ratings (CAT NO 21056, 21546-1, and 21057) • Eliminates the need for custom grounding assemblies and reduces material and labor costs across substations CAT NO MAIN LINE RANGE MAXIMUM SIZE CABLE CLAMP RATING WT MAX MIN 21056 5” O.D. 1.25” O.D. 3.25” Grade 5 43 kA @ 15 Cycles 30 kA @ 30 Cycles 4.5 lb 21546-1 3.63” x 2.25” Rectangular Bus N/A 4” Grade 5 43 kA @ 15 Cycles 30 kA @ 30 Cycles 4.4 lb
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