[Tagging] Feature proposal - RFC - Power transmission refinement

François Lacombe francois.lacombe at telecom-bretagne.eu
Sun Jul 21 19:43:06 UTC 2013


I would warn the list about a little adding to the proposal : neutral

The neutral is often missing from main lines of a power grid since it would
be expensive to make it continuous between plants and consumer.
Earth is doing a better job.

Such a conductor is installed between last transformer and consumers as

Thus, voltage declaration will be impacted : when an AC line has a neutral
conductor, voltage is given between this conductor and phases.
Otherwise, voltage is as usual given between 2 phases.

Example :
In France, national transit is done at 400/225 kV, it's between 2 phases
because there's no neutral conductor at such a global level.
Whereas domestic consumption is done with 220 V and it's between neutral
and phases. Between phases we have 400 V but voltage will have 220 V as a
value here.

Don't hesitate to criticize voltage refining with high, medium and low
values on talk page.

Except those details points, proposal sounds complete to me.

Thanks in advance.

*François Lacombe*

francois dot lacombe At telecom-bretagne dot eu

2013/7/5 François Lacombe <francois.lacombe at telecom-bretagne.eu>

> Hi,
> I'm pleased to announce the RFC begining for the power transmission
> refinement proposal.
> http://wiki.openstreetmap.org/wiki/Proposed_features/Power_transmission_refinement
> Two main points :
> - Voltage refarming
> - Power lines refarming with power=cable deprecation.
> One question without consensus yet : must poles & towers be voltage
> dependent or not ?
> Thanks in advance for your additional comments and have a nice week end.
> Cheers.
> *François Lacombe*
> francois dot lacombe At telecom-bretagne dot eu
> http://www.infos-reseaux.com
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