Fred Locke insulator used on line between Nevada City and Grass Valley, CO

High Potential Porcelain Insulators.

Fred M. Locke, Victor, N. Y., manufacturer of a high class of line material and specialties, is now filling an order for 3,600 of his special High Potential Porcelain Insulators. They are to be used on the long distnace transmission line between Nevada City and Grass Valley, Col., the voltage of which is to be 5,500.

Insulator — Cross Section.

These insulators are of a new pattern, as shown by the accompanying cross sectional plan. They are made from the highest grade of porcelain, are 5-1/4 inches in diameter and weigh about two and one-quarter pounds each. The design of the insulator especially adapts it for use where structural strength and high insulation is necessary.