PickVidsThe US electrical system is not 120V
推荐理由
There's a lot of misconceptions about US electricity. This video does a nice job at pointing out the good and the bad.
说明
这是2020年由Technology Connections发布的一部讲解，主题归在Power grid, heating & buildings。它讲的是us home electrical systems这一支里的具体问题，而不是把整个领域扫一遍。适合第一次接触、还没有先修课的人。内容上可以概括成：Technology Connections explains that US household power is split-phase, with two 120V legs that combine to 240V for large appliances. It covers the breaker panel and how the system works.这些读者给出的理由，核心是：HN commenters point to it to correct misconceptions about US voltage and to explain 240V availability in American homes.讲法不绑某一条新闻，过几年仍然可以当材料看。从2021年到2026年，有4位不同的读者在4个不同月份把它推荐出来，其中明确叫别人去看的有0次。适合用一集把一个概念补上的人。抓住它用的那个图像或类比，比背公式重要。如果已经会了基本定义，就把注意力放在它怎么把us home electrical systems变成能跟着复述的例子。
视频信息
- 频道
- Technology Connections
- 时长
- 24 分 26 秒
- 发布年份
- 2020
同主题更多
- Heat Pumps: the Future of Home Heating
- James Burke Connections, Ep. 1 "The Trigger Effect"
- Why Heat Pumps are Immensely Important Right Now
- What Really Happened During the Texas Power Grid Outage?
- It’s Time To Break Up With Our Gas Stoves | Climate Town
- Ground Source / Geothermal Heat Pumps and Other Info