Electric: Single-Phase Transformer
A single-phase primary (Figure 62) supplies electricity for homes, street lighting, traffic signals, telecom utility structures, and the like. Again, there is no metallic connection between the primary cable and the secondary cable.

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A single-phase primary (Figure 62) supplies electricity for homes, street lighting, traffic signals, telecom utility structures, and the like. Again, there is no metallic connection between the primary cable and the secondary cable.