Tape is very bad! A wire that pulls out will also have arcing problems and start a fire. If you broke it up and suddenly have 3 black wires, that turns into a real headache.Ĭompetent wire nuts = survives a pull-test without tape. How To Install a Dimmer DIY Home RenoVision DIY 2.73M subscribers Join Subscribe 12K Share 743K views 4 years ago renovision commissionsearned diycrew Finally a DIY Electrical video that. That way you are joining 1 wire to 1 wire, and there’s no confusion which is supply and which is lamp. So I would leave it just that way, don’t disturb the 3-wire splice, and break the 2-wire splice. That’s somewhat redundant, but very harmless (assuming the wire nuts are done competently). Moreso, you have a double pigtail, where the multiple wires join to a short branch wire, then that short wire joins to another short wire. Switches and lamps don’t have dual screws, so you see a lot of use of pigtails to achieve the same effect. Not recommending that, just making the point that the dual recep screws, and pigtails, are basically doing the same thing.) c) tie the power-source and the 'other stuff' hot to each other. b) attach the black/hot going to the lamp, to one of the switch terminals. The normal connection is to a) hook up all grounds. If you wire power source to this, the lamp will be on all the time. Most inspectors (and I believe the code as well) require rough in to be completed to the extent that the box is 'ready to receive the device'. One black (and its partner white) going to the lamp - the one controlled by the switch. The pig-tail to the dimmer connected to the two blacks is also typical. The 2 blacks connected are 'power in, power out' to the next switch in the circuit. Climb the ladder, flick 3 wire nuts and I’m done. This is the typical way to connect a switch. Getting stranded wire onto receptacle screws is fidgety work, and it’s easier to do at a comfy workbench. (Tell you a secret: I don’t use them, I pigtail everything. They have extra screws just for the purpose of making that “onward cable” easier to hook up. You see this all the time in receptacles. In effect, the outlets are “daisy chained”. then hot+neutral are continued onward to another point-of-use. It doesn’t matter if you reverse the two switch wires to a single-pole dimmer. Finish the job by installing the cover plate and turning on the power to test the new dimmer. How does this work? Power (in a cable containing hot and neutral) are brought to a point-of-use (technically that’s called an “outlet” even if it’s a light/switch). Screw the dimmer to the box with the screws provided. You probably know that your house has many more “points of use” (places electricity is used) than it has circuit breakers.
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