electric insulator
Datelate 19th-mid 20th Century
Inventory Number2007-1-0157
ClassificationInsulator
Subject
Maker
American
?
Cultural Region
Dimensions9.7 x 7.4 x 7.4 cm (3 13/16 x 2 15/16 x 2 15/16 in.)
Material
DescriptionA pin-type insulator of white ceramic, "bullet" shape, with a pointed tip and a squared cable groove. Inside the insulator are two concentric tubes, an inner and outer skirt. The inner skirt is threaded.
Signedunsigned
FunctionInsulators like this one are used to suspend bare wires that transmit electricity at very high voltages. They are made of materials that do not conduct electricity even at extreme voltages.
