Old Ceramic Electrical Insulators

Vintage insulators are most commonly made out of porcelain or glass materials and they come in a wide variety of colors and shapes making each item a unique.

Old ceramic electrical insulators.

Insulators were first developed in the mid 1800s to be used on telegraph and telephone lines to contain the electrical current and prevent the current from entering the ground below. Make offer large vintage thomas 37 electric railroad telephone insulator 2 tier. 2 vintage au 89 95 2 vintage white ceramic electrical insulators made in japan mushroom shape 13cm 2 brown 49 99 2 brown porcelain ceramic electricity insulators industrial design steampunk vintage lot 62 00 vintage lot of 4 brown porcelain ceramic telephone pole insulators saddle shaped. 7 70 2d 15 74 shipping.

Dr pepper good life 10 2 4 raised letter dr pepper embossed on bottom. Army air corps dui. Telephone telegraph insulator brown glaze ceramic antique set of 2 29 95. Vintage white porcelain insulators lot of 9 old electric fence others.

Make offer ex large brown ceramic 3 tier high voltage electric insulator vintage 12lb. Vintage porcelain ceramic electric fence or house elec. Vintage new orleans zephyrs. In conjunction with the expansion of rural electrification in the early 20th century there was a major boom in the manufacturing of insulators with production peaking from the 1920s through the 1940s when millions of hemingray dominion and.

They are made from glass porcelain or composite polymer materials nonconductive materials. In north america glass was always the predominate material for communications insulators but porcelain has become the standard for power distribution due to its greater strength and surface resistance. They insulated and protected the wooden poles from the electricity coursing through the wires. Lot of eleven 11 electrical glass insulators various manufacturers 22 00.

Vintage glass insulators were first produced in the 1850s for telegraph lines then for telephone and power transmission lines. Make offer vintage white porcelain insulators lot of 9 old electric fence others. Insulators were originally designed to keep the wires linking telegraphs and telephones insulated from the wooden poles that held them aloft. Similar to their glass counterparts porcelain insulators date back to before the civil war for telegraph wires.