> I have a lot of electronics that accept 100-240v doesn’t mean I think they’re close together, just that they have compensating mechanisms to handle such voltages.
I bet you also have a lot of electronics that don't though, and those that do probably say so.
My kitchen mixers, dishwasher, washing machine, driers, rice cooker, refrigerators, sauna, and pool pump aren't that tolerant by a long shot. I've got a few computers with a switch on the back to choose between 220v and 110v.
Plugging something that takes 110v into my house breaks the thing, so I've learned to check.
But I don't have anything that's 208v that can't go into the house. So I think whatever the situation is with volts, within 15% is "basically the same", so coming within 15% of the rated limit, is probably just like exceeding the limit by 15%.
And so this is why I would not expect something at 146V to be under the safety limit of 150V.
> Also try to tell someone they need an extra 30% in margin and often they'll think they’re being upsold.
Where do you get 30%?
You’re listing things that are high powered and or old. Modern PSUs don’t have that switch. While it’s in the early stages I expect more white goods to switch to BLDC motors which will likely use voltage transformers that’ll support the 110-240v.
People generally are not lugging white goods internationally, the average persons experience with different voltages is for laptop and phone chargers when they travel.
But for the matter at hand, the margin mentioned is needed on the solar systems, this is where the inverters can get expensive, which is why it can look like an unnecessary upsell to people who’ve never blown a device before.
> You’re listing things that are high powered and or old.
Sure. I have high-powered and old things, and I bet you've seen stuff like that too.
I'm explaining why I, as a non-expert, would not put 146V into something that says it can't take more than 150V.
> People generally are not lugging white goods internationally
Travel doesn't enter into it; My appliances came from Europe, they're just labelled a bunch of different voltages, so I think voltages within that range are roughly equivalent.
Furthermore, British have such a very special relationship with tea, such it would be entirely understandable that a Brit would take their kettle with them and often become quite annoyed that they cannot get an adapter to use it when holidaying amongst the yanks.
Not sure what I expected from someone who thinks 208V and 240V are close together from some labels they saw on some devices.