Typical North American utility pole, showing hardware for a residential 240/120 V split-phase service drop: (A,B,C) 3-phase primary distribution wires, (D) neutral wire, (E) fuse cutout, (F) lightning arrestor, (G) single phase distribution transformer, (H) ground wire to transformer case, (J) "triplex" service drop cable carries secondary current to customer, (K) telephone and cable television cables.
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