It’s not about selling electricity, it’s about having a single market for electrical devices. There’s no single market if most products don’t work in one country. Even different AC plugs are only allowed because adapters are cheap and using different plugs for Ireland and Italy is a minor change in the production line.
You grossly misunderstood what the single market means - there are of course absolutely different local regulations and customs that are used.
Ireland (and the UK before they left) drive on the other side of the road, trains systems vary by nation, even electrical standards do - the single market in terms of norms means that they just have to all follow a general market admission will follow the same rules - e.g. a product needs to fully comply with the basic marke wide ruleset.
You do realize that many companies offer multiple or variable power supplies addressing different input voltages and frequencies, right? Most consumer electronics are functionally identical, they just have a varying types of charging cable mains adapters. Larger appliances and tools are a different story, but more manufacturers are offering variability in their equipment.
It’s not about selling electricity, it’s about having a single market for electrical devices. There’s no single market if most products don’t work in one country. Even different AC plugs are only allowed because adapters are cheap and using different plugs for Ireland and Italy is a minor change in the production line.
You grossly misunderstood what the single market means - there are of course absolutely different local regulations and customs that are used. Ireland (and the UK before they left) drive on the other side of the road, trains systems vary by nation, even electrical standards do - the single market in terms of norms means that they just have to all follow a general market admission will follow the same rules - e.g. a product needs to fully comply with the basic marke wide ruleset.
Italy and Denmark are only different for earthed plugs, IIRC. Outside of the former British Empire, unearthed plugs within the EU are standard.
Nah Italian sockets have a different prong spacing. It’s close enough for europlugs to fit but those are only for low amperage applications.
You do realize that many companies offer multiple or variable power supplies addressing different input voltages and frequencies, right? Most consumer electronics are functionally identical, they just have a varying types of charging cable mains adapters. Larger appliances and tools are a different story, but more manufacturers are offering variability in their equipment.
Most and all are different things.
If you want to be pedantic, have at it.