Originally Posted by Darwin Maring
Here is a test: The next time you use your vacuum cleaner, feel how hot the cord when you are done. That is because of the thin wiring on that device.
This is very true with many appliances that should use heavier cords. Lamps are often the biggest culprit, often being #18 wire at the most. This is why here at least we now must use arc-fault breakers in bedrooms here in Alberta, and I am sure elsewhere too.
If the runs were possibly real long, like in many big homes, then using #12 wire could be beneficial, but the longest run in a Trillium
is about 12'.
However, if you were to run a #14 circuit right at the full 15A capacity, you would feel next to no warming on the cable if you felt it.
I am all for everything being built strong enough, with a bit of a safety factor built in, but am not keen on over-building......well, just because. Having had to tear out 100's of home owner projects over the years, it is rare to find a job where they did not either underbuild or build improperly, or overbuild it to the nth degree just to be sure. Cutting the bottom half of a joist out to run plumbing is just wrong, but a 3" spike every 2" nailing one stud to another is not needed either.