Tag:line_attachment=pulley
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 line_attachment = pulley
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| Description |
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A line supported by a wheel designed to allow longitudinal moves and hold it at a proper distance of a fixed support. 
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| Group: infrastructure |
| Used on these elements |
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| Useful combination |
Status: approved
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| Tools for this tag |
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Usage
A pulley support is different from a suspension or anchor attachment. With an appropriate mechanical tension, the line/cable is hold by a vertical accessory and maintained at a proper distance of the support without any clamp to fit them. The cable can move and the support is designed to follow it with a moving part (mandatory). The usual groove wheel for such pulleys can be replaced by an appropriate insulator in case of bare power conductors. A pulley on which the line is terminating is an actual anchor and shouldn't be confused with this value.
Examples
Misc
| Photo | Location | Tagging | Note3 |
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France | Cables are designed to move along supporting pulleys (you can see the lubricant around them) to remotely actuate railway switches near of a station. | |
| Lack of free illustration See [1] |
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Unknown tagging for such a support, power=pole sounds overkill for electric fences.
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Wood post insulators supports live wires of electric fences. This support is designed to allow movement of the live wire. This is an actual pulley and not a suspension one. |
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Germany | Chains are hold by pulleys to redirect orthogonal effort |
![[1]](https://dbs-pictures.imgix.net/products/9/98/986737/986737-00001-1472539633.png?auto=compress,format){kind=link}