Ceramic Insulators Value

Glass insulators were first produced in the 1850 s for use with telegraph lines.

Ceramic insulators value.

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 piece that can make a great addition to a collection. As technology developed insulators were needed for telephone lines electric power lines and other applications. Insulators were originally designed to keep the wires linking telegraphs and telephones insulated from the wooden poles that held them aloft. Return to the national insulator association page.

Similar to their glass counterparts porcelain insulators date back to before the civil war for telegraph wires. 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. This transition was complete by the 1970s. Ceramic is made of red brown or white porous clay.

If the ceramic is glazed as zareba insulators are the glaze is only baked into the top layer. Most of the insulators available today come from this era. Click on an insulator above for more information. The 126 page value guide lists manufacturer marking catalog number color rarity and value for 4354 different unipart pin type styles and 1201 different multipart pin type styles.

In the 1950s electrical companies transitioned to porcelain insulators. 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. Ceramic is less expensive to produce than porcelain. Once it s shaped it is fired between 2 100 to 2 300 fahrenheit.

Firegear match 1850 98 firegear match light fire pit burner kit square bowl pan propane 38x38. This increased the need for the glass insulator and more companies sprang up in response to the need. Must have new guide book too for u chart and u numbers value guide can not be used by itself alone without the guide book value guide 3rd edition for unipart and multipart porcelain insulator. K5600 joker 1850 00 k5600 joker evolution 200 hmi light kit ac dc anton plus chimera lightbox.

Collecting insulators is a fun and unique hobby that will allow you to learn much about the history and make of these unique objects. Today there are over 2000 collectors and insulator clubs national shows and good reference books are available. In the mid 1960 s a few people began collecting these glass and porcelain insulators. Link to other types of insulators.