Contact voltage incidents usually caused by aging equipment:utility

SAINT JOHN, N.B. — Although officials say the conditions that caused a brief electrical shock to a man and his dog in Saint John, N.B., earlier this week are rare, at least one major city has spent millions of dollars addressing similar problems largely caused by aging infrastructure.

Saint John Energy said heat damage to some insulation combined with wet and salty conditions on Monday is believed to have caused electrical tracking that reached an above ground metal plate cover or handwell in the city's uptown area.

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