William Beaty personal blog

Why three prongs?

Why do AC cords need three prongs? If there is no positive or negative in AC systems, why do we have HOT and NEUTRAL? I attempt to shed light on some of these mysteries.
Points
581
HN comments
378
Submissions
2
Cited by
7 commenters

Hardware & ElectronicsScience & Space2012

On Hacker News

SubmittedTitle on HNPointsComments
Jun 2, 2012Why three prongs? by xd581146
Jul 8, 2019Why Three Prongs? (1996) by nkurz249232

Cited in comments

Linked from 7 Hacker News comments by 7 different people, from Jun 2012 to Jun 2020.

Most recent:

Search every comment that links here →

More from William Beaty

All 7 posts →

Related posts from the same era