Ceramic Insulators Value

As technology developed insulators were needed for telephone lines electric power lines and other applications.

Ceramic insulators value.

In the mid 1960 s a few people began collecting these glass and porcelain insulators. From 1920 to 1950 there was a peak in the manufacture of glass insulators. 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.

Today there are over 2000 collectors and insulator clubs national shows and good reference books are available. Similar to their glass counterparts porcelain insulators date back to before the civil war for telegraph wires. K5600 joker 1850 00 k5600 joker evolution 200 hmi light kit ac dc anton plus chimera lightbox. 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.

In the 1950s electrical companies transitioned to porcelain 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 piece that can make a great addition to a collection. 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. Strain insulator ceramic insulator oval shaped nsn.

Buy ceramic insulators on ebay now. 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. Ceramic is made of red brown or white porous clay. Once it s shaped it is fired between 2 100 to 2 300 fahrenheit.

Ceramic is less expensive to produce than porcelain. This increased the need for the glass insulator and more companies sprang up in response to the need. Click on an insulator above for more information. This transition was complete by the 1970s.

Collecting insulators is a fun and unique hobby that will allow you to learn much about the history and make of these unique objects. Most of the insulators available today come from this era. 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. If the ceramic is glazed as zareba insulators are the glaze is only baked into the top layer.