Barber

FACTS AND PROCEEDINGS BELOW

A. Fundamentals of Electrical Distribution Systems and Electricity Analysis of the facts and issues in this case requires a basic understanding of electrical distribution systems, much of which is provided in a previous opinion of Division Four of this court, Wilson v. Southern California Edison Co. (2015) 234 Cal.App.4th 123 (Wilson I), which involved allegations of stray voltage at another Knobb Hill Avenue property. “Electricity is produced at a generating plant. Because it is not economical to send electricity over long distances at low voltages, the electricity produced at the plant is stepped up through transformers to a very high voltage before it is sent out over transmission lines. A substation, such as Edison’s Topaz substation at issue in this case, receives the high voltage electricity from the generating plant and steps it down through transformers to 4,000 volts. It then sends the electricity over distribution lines out to the neighborhood power poles, where an additional transformer steps down the voltage to 240/120 volts before delivering the electricity to homes or businesses.

3 “In order for electricity to flow, there must be a…