Its my understanding that when charging the iPad or iPhone in other countries all I need is the electrical plug adapter for that country,is this correct.
Al
That's correct - though you should use the dedicated charger for the iPad to charge that because it supplies 2A. The iPad charger is fine for the iPhone too, but not the other way around because the iPhone charger cannot supply 2A. If you were to use the iPhone charger to charge the iPad it would take considerably longer than normal.
The voltage is not an issue - as you suggested all you need is a power outlet adaptor.
Tim