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Public-images-osm logo.svg line = bay
Osm element tag.svg
A power line within a substation which connects a circuit to a busbar Edit or translate this description.
Group: Power
Used on these elements
should not be used on nodesmay be used on waysshould not be used on areasshould not be used on relations
Useful combination
See also
Status: in use

A bay is a power line within an electrical substation which connects a circuit (such as a power line or transformer) to a busbar.

Each bay typically includes circuit breakers, disconnectors, instrument transformers and surge arresters. It is suggested not to tag all these individual components. However, the circuit breaker may optionally be tagged as a switch.

Key Value Comment Recommendation
power line Defines this way as a generic power line. mandatory
line bay Identifies the line as a bay mandatory
cables <3,6,..> Normally bays should be mapped individually per circuit. However, if for some reasons the mapped way represents more than one circuit this should be indicated using the cables tag, e.g cables=6 for two bays. recommended
voltage <voltage> The voltage of the bay recommended
Substation components

A typical substation comprises at least the following components:

Substation-diagram.png Gray: Substation
Cyan: Power line
Blue: Bay
Green: Switches etc
Purple: Busbar assembly
Red: Transformer

See also