attic wiring done :-), thanks! & electrical safety?
2008-05-31 12:44:43Hi, Thanks for the help with advice on my attic project! All the wiring for the attic project is done: bathroom fan, whole house fan, attic fan, closet light for my dad, two flourescent lights w/ switch for the attic, and a new GFCI outlet in the bathroom. And then a set of pull down stairs. All that remains is the trim around the stairs & painting them (and patching up a 2" diam. mistake hole in the ceiling next to the stairs) and the floor! We had an electrician come in in the middle of the project to inspect things. A couple things that I had failed to do was to put the splices into metal boxes instead of just wrapping them in electrical tape (I blame the how-to book, it didn't mention additional wiring to existing circuits, assuming that you were installing everything from the beginning of construction before the drywall was even up), and I didn't twist the wires tightly together before putting the cap on. Now those things are fixed, so overall, it went without problem :-) It was interesting, I asked the electrician if I saved anything by going through the trouble of doing it myself, and he said that attic fans cost $400, whole house fans are $800, and then he didn't remember the company's price on a new light or outlets, but that would be still more. And all of this cost us $600 in materials, so a minimum of $600 savings! There was another silly mistake where I misunderstood the placement of the switch, for example, but now I'm feeling more confident in it. Next project: a couple 220V lines in the basement, having the electrician install the breaker for me, but I'll run the lines. Btw, something that I just was wondering about-- if you were to accidentally cut into a live wire, you wouldn't get electrocuted, would you? You have a set of wire cutters, and it will cut nearly simultaneously through the white and black, thus connecting them. But the path of least resistance, the electricity will just flow through that 1/2" of cutter blade connecting them, no reason to travel several feet to go through your body and back, is there? And as long as you do turn off the circuit every time you work on a switch or an outlet or splice into a wire, there's no danger at all? Say that you did do work on a live outlet, what situation could kill you? The electrician had a look at the GFCI outlet and the double switch controlling the bathroom fan, and had to make a couple changes, leaving the electricity on so that he could test it there without running to the basement every couple minutes. He shocked himself 3 times in the process, and didn't seem the worse for wear. Each time it made his hand jerk backward, and while it didn't look fun, it seemed a very passing pain. I'm not sure, though, if each time he was working on one part with the pliers and touched another wire with his hand? If so, then if one used both hands in the work and the electricity passed from one hand to the other, is that when it's dangerous, through the heart? Apart from deliberately gripping a wire, is there ever a situation where you could find the electricity stimulating your hand to close on the wire and have electricity continuously pass through you...? Is electrocution not the real safety issue, but rather sparking and fires; but so long as I have everything in boxes and wired tightly, that's not a problem either..? thanks again for the help! -Bernard