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by spoiler 3518 days ago
It's also possible that op has a socket like this, so the grounding is on the side: http://i.imgur.com/lLM3gQO.png

However, there is also this: http://i.imgur.com/ftPT7sC.png, which grounds from either sides or in the middle for sockets like these http://i.imgur.com/FnXMndC.png
1 comments
aianus 3518 days ago
No, I have American sockets.

The charger looks like this: https://support.apple.com/library/content/dam/edam/applecare...

And also comes with a longer, three-prong cable that replaces the little two-prong piece: http://www.ebay.ca/itm/like/172352962036?lpid=116&chn=ps

link
sveiss 3518 days ago
The MacBook chargers are designed to be safe without grounding.

The grounding pin does have a use, though: some cheap powered USB devices will put out a voltage relative to ground on their '0v' lines. If you touch a MacBook that's plugged into one of these devices, you can get a small shock. If you're using a 3-pin adapter, this doesn't seem to happen.

link