Trolley wires or other exposed electrical wires shall not carry a voltage above 275 volts

(225 ILCS 710/46.02) (from Ch. 96 1/2, par. 4322)

Sec. 46.02. Trolley wires or other exposed electrical wires shall not carry a voltage above 275 volts.

(Source: Laws 1945, p. 1035.)