D-512

For Primary Power Distribution Circuits 2300 Volts. Also for 4600 and 4000 Y circuits.

A strong well made insulator for primary distribution purposes. New heavy construction -- large smooth threads, thick body and heavy petticoats. Built to withstand severe lifelong service. Decidedly economical to install and maintain.

Voltage Rating _ _ _ _ _ _ 6,600 Volts
Dry Flash-over _ _ _ _ _50,000 Volts
Wet Flash-over _ _ _ _ _30,000 Volts
Leakage Distance _ _ _ _ _ 5 1/4 in.
Wet Arcing Distance _ _ _ _ 1 1/4 in.
Diameter of Groove _ _ _ _ _ 3/4 in.
Weight per Piece _ _ _ _ _ _ _ 24 oz.
Quantity per Carton _ _ _ _ _ 50
Weight per Carton _ _ _ _ _ 77 lbs.
Weight per 100, packed _ _ 154 lbs.

These new Hemingray Glass Insulators are transparent -- easy to inspect -- Being non-porous the maintain their dielectric strength indefinitely. They are carefully annealed by the new Hemingray process and thoroughly tested. They are immune to rapid temperature changes.

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