This is a huge task! However, I would suggest that you contact the technical committees (e.g. ETCI in Ireland www.etci.ie or the IEE in the uk etc) and ask them for specfic details. Most of the information on the web is either so ridiculously out of date that it's laughable or just plain wrong.

To start you off for Ireland:

Low Voltage:

Domestic/Office/Similar environments:

Single Phase: 230V 50hz connected via BS1363 13A plugs all of which are polarised and grounded. (Older plug/socket systems, Schuko & BS546 were used but in general will not be found in any building these days)

----** Domestic/Similar socket outlets installed after 1980 are legally required to be protected by a 30 mA RCD (GFCI) Older installations may/maynot have RCD protection as it was not compulsary.

3-phase appliences are rare but where they do exsist in domestic/similar environments, they are hardwired.

Construction Sites:

Supplies on construction sites in Ireland are a little weird. Portable power tools must use 110V 50hz supplied via a local centre-tapped transformer providing 2 hots at about 55V.

Portable lighting on construction sights uses even lower voltages.

Any 230V equipment that is permitted, e.g. in site offices must be protected by 30mA RCDs.

Industrial:

230V 50hz single phasesupplied via 16A blue CEEform plugs (Grounded and polarised)
400V -50hz 3phase - Supplied via Red CEEform plugs, polarised and grounded.

Note: All outlets up to 32A MUST be RCD protected.

Medium Voltage:

10kV 50hz
20kV 50hz
38kV 50hz

Direct industrial connection at these voltages and at 110kV is not unusual. A substation would be designed in conjunction with the power company.

High Voltage supplies are always negociated and designed in conjunction with the power company.

Transmission voltages:

110kV 50Hz
220kV 50Hz
and 400kV 50Hz


Remember that large-scale industrial installations are rarely off-the-shelf and may be transformed to and from various voltages! I really can't see the relevance of providing engineers with all of the local supply voltages it's more important to know wheather a sufficiently sized supply is available from the network in a given area.

E.g. you might be ill-advised to locate a huge electric arc furnace in a rural area !

[This message has been edited by djk (edited 06-04-2004).]