Tag:line_attachment=suspension

line_attachment = 
Description
An underside continuous line is vertically hold by support using suspension sets involving clamps and sometimes insulators. Show/edit corresponding data item.
Group: infrastructure
Used on these elements
may be used on nodesshould not be used on waysshould not be used on areasshould not be used on relations (except multipolygon relations)
Useful combination
Status: approvedPage for proposal
More details at taginfo
Tools for this tag

Usage

See line_attachment=* for global guidelines on how use this key.

Regards a support where continuous underside line is hold by vertical suspension sets.
A Suspension set (466-12-03) is an assembly of strain link and a clamp to support a line/cable at the assembly lower end. Suspension supports aren't designed to preserve the line tension but the line isn't expected to move due to clamps. Insulators are used as link in case of bare power conductors.

A suspension has no moving part and usually prevent line to move longitudinally although this is not mandatory. This is the default type and doesn't need to be tagged. However it may be useful to tag a suspension support if it is used as an angle tower (an anchor tower would normally be expected here).

Possible mistakes

If you know places with this tag, verify if it could be tagged with another tag.
Automated edits are strongly discouraged unless you really know what you are doing!
If you know places with this tag, verify if it could be tagged with another tag.
Automated edits are strongly discouraged unless you really know what you are doing!

Examples

Power

Photo Location Tagging Note
Suspension power tower
 France

power=tower
line_attachment=

Power tower supporting a 400kV overhead power line with suspension attachement
Suspension of power cables Austria

line_attachment=

Here power cables are suspended without insulators on fixed support mounted on concrete walls directly.
Suspension power pole France

power=pole
line_attachment=
material=wood

A suspension power pole supporting a power cable along a road

Telecoms

Photo Location Tagging Note
Suspension telecom pole France

telecom=pole (Theoretically)
line_attachment=
material=wood

A telecom pole made of wood where a cable is suspended along a road

Multi-utilities

Photo Location Tagging Note
France

power=pole
line_attachment=(suspension)|(anchor)
material=concrete

A pole can host several different configuration like this one. Suffixes help to give all details about line supported by the pole.

Misc

Photo Location Tagging Note
Germany

support=pole
line_attachment=
material=wood

Wood post insulators supports live wires of electric fences. Despite the cable can move through the insulator, this is not a pulley but a suspension since there is no moving part in the support and it is not designed to follow line movement like an actual pulley does.
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