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12-2 Wire vs 12-3 Wire - DoItYourself. com
12-2 Wire vs 12-3 Wire FAQ What is 12 3 electrical wire used for? Also marked as 12 3 and 12-3 wire or cable, 12 3 electrical wire is used with circuits that carry more energy than the standard 20 amps This type of wire is used for heavy-draw appliances, like the central air conditioning system Why use 3 wire instead of 2 wire?
12 3 or 12 2 2 - DoItYourself. com Community Forums
Electrical - AC DC - 12 3 or 12 2 2 - Is it still code to use a single 12 3 to set up two shared neutral circuits, when they don't need GFCI and when a double pole breaker is used? I've got four longish runs (80'), and I have the 12 3 cable aready Or must I pull separate 12 2 cables or 12 2 2?
Conduit size vs. number of romex cables - DoItYourself. com
Electrical - AC DC - Conduit size vs number of romex cables - I want run some additional drops in my garage The way I want to do this is to drop from the ceiling for each one For this I would want to daisy-chain from one drop to the next, so I would have 2 - 12-2 romex cables in the conduit of ech drop; AC inco
How Long Can I Run 12 2 20 Amp Circuit? - DoItYourself. com
12 2 20 Amp Circuit FAQ How far can 12 2 wire carry 20 amps? As a general rule, a 12 2 wire with a load of 20 amps can be as long as 57 feet before it loses too much voltage to be effective This is because voltage is lost along the wire the longer the wire is, so length does matter a great deal
Using ONE 12-3 cable for 2 20-amp circuits rather than standard TWO 12 . . .
The reason given for using one 12-3 rather than two 12-2 was that if both circuits were in use a the same time, say for example with an apartment-sized washer and dryer, that sharing the common wire would actually REDUCE the amount of power consumed and would not result in any safety hazard
How long can I run 12 2 20 amp circuit - DoItYourself. com
Electrical - AC DC - How long can I run 12 2 20 amp circuit - Basically I have a small out building that I want to run electric to I have a 20 amp slot open in my panel
220 and 230 Volt Wiring FAQ - DoItYourself. com
In 12 2, 10 2, and 8 2 cables, both wires are hot and carrying 240 volts between them with the white neutral line absent In a 12 3,10 3, and 8 3 cable, the two colored wires (can be black, red, or blue insulation) are always hot and the one white wire is always neutral, with the green or copper ground wire not counted in the coding of the cable