Ask Lemmy

I would argue that neither of the plugs shown in the picture nor those mentioned by others are the best.

Ignoring current adoption, I think that IEC 60906-1 is the best plug. It is very similar to the Swiss plug and was intended to, at least in the EU, replace other plugs. It has quite a few advantages over the other plugs. It is rated at 16 A, has a compact form factor, is polarised, and has almost all the common protections except fuses (which are pretty much useless anyway). Currently it only is used in South Africa without major changes to the plug.

Compared to the Schuko (Type F):

• Much smaller. You can fit three plugs in the same space as a single Schuko plug (similar to Swiss triple outlets).
• It takes less force to plug in. Above 2.5A, Schuko plugs require a lot of force to plug in and pull out. To some extent, this is actually good for safety, but I would argue that, in the case of Schuko plugs at least, it's too much
• It is also easier to plug in without seeing the plug since it isn't round. Everyone who has tried to plug in a Schuko plug without seeing the holes knows how difficult it is
• It's polarised/directional. In some very specific cases, there is a security advantage to using a polarised plug, but I think it's also a hassle to only be able to plug in a plug one direction. It also fits Europlugs (the thin, small plugs with only two pins that are very common in Europe, e.g. on phone chargers)

Compared to (Typ G)):

• Wayyy smaller
• Not a stepping hazard
• Rated for 16A (instead of 13 A)

• No Fuse (Again, pretty unecessary)

Regarding three-phase power, I would argue that Swiss type 15 (10A) and type 25 (16A) plugs are the best. These are really cool because while beeing the same size as Schuko (Typ F) plugs, they can transfer three-phase power (so 11 kW; 230 V / 16A on all three phases). They also fit standard Swiss single-phase and Euro plugs. This makes plugging in large appliances like electric stoves much easier than in other countries.

I would find it quite cool if most countries switched to one common plug, and I think IEC 60906-1 would be best for that. It would also be possible to build hybrid sockets for many common plugs during the transition phase.