Learn how to test a transformer: insulation resistance, TTR, winding resistance, polarity, continuity, and dielectric checks.
Thousands were left without power this morning after someone deliberately cut a major hydro wire under a London bridge, ...
Ontario Fire Marshal urges residents to test alarms monthly as fatal house fires rise. It takes minutes and can save lives.
London police are investigating damage to a 27,000-volt wire that sparked a small fire and knocked out power to about 5,000 London Hydro customers Friday morning.
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