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Shouldn't a power adapter like that be grounded?
by Khao 13y ago
Shouldn't a power adapter like that be grounded?
- Xylakant 13y agoApple power adapters are not grounded if you use the short plug (the cable is grounded) and they supply up to 85W. You sometimes get the slight tingly feeling when touching the case.
- TheLoneWolfling 13y agoMy laptop power supply isn't grounded. I assume that there is a good reason for this.
- jarek 13y agoAnecdote: I've been using ungrounded (two-prong) genuine Thinkpad power adapters for close to a decade now with no issues.
- nraynaud 13y agoit's not mandatory in most countries for various reasons. The most simple one is that none of failures modes of the adapters connect the main to the laptop without doing a short first (unless you bought a fake one in which case all the bets are off).
- McGuffin 13y agoIt's pretty common for power adapters to be double insulated. Which in a way is very useful if you're traveling in e.g. continental Europe, where you can just buy a two prong "europlug" cable to use instead of the NEMA one which fits in sockets of varying design.