Antique tube insulators
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Product details
| Management number | 5828366 | Release Date | 2025/08/21 | List Price | $6.00 | Model Number | 5828366 | ||
|---|---|---|---|---|---|---|---|---|---|
| Category | |||||||||
antique porcelain tube insulators used in knob and tube wiring.
These insulators are components of a historical electrical wiring method known as knob and tube wiring, these are from a home I'm Loveland that was built in 1895
Function:
The tubes, like those pictured, were used to insulate and protect electrical wires as they passed through wooden framing members (joists, studs, etc.) in a building. This prevented the wires from coming into contact with flammable materials and provided insulation.
Material:
They are typically made of porcelain or ceramic, chosen for their excellent insulating properties.
| Category | Vintage & collectibles > Antique > 100 years or older |
|---|---|
| Size | N/A |
| Brand | Crystal Rock |
| Condition | Good |
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