# [OSM-talk-ie] Voltage warning

Donal Hunt donal.hunt at gmail.com
Tue Nov 3 00:24:51 UTC 2020

```Thanks for the insight Colm.

The only comment I'll make is that "low voltage" in electrical circles in <
1000V. High voltage is anything above 1000V. Trying to align with that may
be worthwhile (probably too late).

On thing we can agree on is that there is a lot left to map!

Donal

On Mon 2 Nov 2020, 23:14 Colm Moore, <colmmoore72 at hotmail.com> wrote:

> Hi,
>
> It is difficult to determine the exact voltage on each piece of the
> electricity network without going to inspect each individual device on site
> (potentially difficult, unsafe, potentially illegal), although there are
> some visual clues in the overhead photos (size of substation, power route,
> size & type of pole, etc.). There are hundreds of thousands of transformers
> and twice as much power line as there is public roads.
>
> voltage=low, voltage:primary=low, voltage:secondary=low, etc. are
> placeholder values I created to help identify the voltages used on the
> power network.
>
>   1.  voltage=* can apply to any part of any electrical device.
>   2.  voltage:primary=* primarily applies to transformers and substations
> and is the voltage for the side the power is coming from.
>   3.  voltage:secondary=* primarily applies to transformers and
> substations and is the voltage for the side the power is going to.
>   4.  There are also voltage:tertiary=* and voltage:quaternary=* for
> locations with multiple voltages.
>
> These are the values I have been using:
>
>   1.  High = I presume the voltage to be 110,000 volts or higher but can't
> say which.
>   2.  Medium = I presume the voltage to be 38,000 volts but can't say for
> definite.
>   3.  Low = I presume the voltage to be 20,000 volts or lower but can't
> say which.
>
> The network operators and voltages used across Ireland are below.
>
> Could I ask where the error is showing? The usual debugging sites normally
> associate errors with the most recent contributor - usually me.
>
> Colm
>
> ---------------------
>
> EirGrid (Republic of Ireland and Ireland-Britain)
> 400000 - high
> 220000 - high
> 110000 - high
>
> ESB Networks (Republic of Ireland)
> 38000 - medium
> 20000 - low
> 10000 - low
> 400 (often referred to as 380-415) - low
> 230 (often referred to as 220-240) - low
>
> NIE Networks (Northern Ireland)
> 400000 - high
> 275000 - high
> 110000 - high
> 33000 - medium
> 19000 - low
> 11000 - low
> 6600 - low
> 400 (often referred to as 380-415) - low
> 230 (often referred to as 220-240) - low
>
> Mutual Energy (Northern Ireland-Britain)
> 250000
>
> Irish Rail
> 1500
>
> Luas
> 750
>
> Other Operators
> 600000
> 33000
> 20000
> 19000
> 10000
> Various
>
>
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```