I once read a great article explaining why we use polarized plugs, grounding, and GFCI outlets in household AC circuits. It was written from the perspective of an electric company whose customers keep getting electrocuted by their appliances. The company introduces the safety measures one by one and the article explains how people still get shocked. It might even have been a comment on Metafilter; I'm not sure. Where can I find it?
posted by scose
on Jul 7, 2013 -
Will turning up the thermostat on my central air and buying a window AC unit for the one room I use the most make a significant difference in my electric bill? [more inside]
posted by Vorteks
on Aug 8, 2012 -
How much current does an AC adaptor draw when it's plugged in but not powering anything, or the device to which the adaptor is attached is powered off? [more inside]
posted by RockyChrysler
on Feb 9, 2011 -
Does my window air conditioner use just as much electricity on the "fan" setting as it does on the "cool" setting? [more inside]
posted by amro
on Sep 28, 2008 -
Can you buy power strips in the US that have separate on/off switches for each socket? [more inside]
posted by holgate
on Dec 22, 2005 -
Electricity: I'm wiring up a new dishwasher with the power cord from the old dishwasher. Just to make things interesting, the power cord has absolutely no indication of which side is positive and which side is negative. Is this because it's AC and it doesn't matter? I'm in the US on 110.
posted by yerfatma
on Dec 6, 2004 -
TransformerFilter: I've just relocated to the US and have a rechargeable drill that uses a 17V DC transformer. I need to replace the transformer, since the one I have runs on 240V power (and has the UK prongs). The problem here is that I can't find a suitable replacement at the likely suspect places: hardware stores, Radio Shack...
I know that the voltage must match precisely and that the amperage must be at least as high as the noted amperage, and that the polarity must also match. So where can I go to find a good transformer? I'm in NYC, but I prefer to shop online.
posted by yellowcandy
on Nov 28, 2004 -