How Much Can You Run Off 12 2 Wire?

The first run of 12/2 wire powers 4 20 watt spot lights. These 4 lights are daisy chain designed but all pretty close proximity to the power source. This part of course is working fine. The second part or the addition was to run a second line roughly 100 feet or so and power 4 to 5 more 20 watt spot lights.

Is it OK to use a 12-2 wire?

It is OK to use larger wire than the code requires. Some times it is even necessary for long runs to avoid voltage drop. It is however not good pactice as someone might see the 12 guage and think OH I can change the breaker to 20 amp.

How big of a wire can I run to a shed?

You can run a 10 gauge wire up to 85 feet on a 20 amp circuit. If you opt to use this type of wire on a 15 amp circuit, it can run up to 115 feet. After these distances, the circuit will go over the recommended 3% voltage drop. You can run a 12 gauge wire up to 70 feet on a 15 amp circuit.

Is it legal to run 12 AWG wire at 30 amps?

If you look in the code book, 12 AWG wire is legal to 30 amps if you can run it at 90 degrees C. Which you can't except for very narrow conditions. Which you can't except for very narrow conditions. The first impediment is terminations (breakers and plugs).

Can you use two 12 / 2 cables for 30 amps?

Intentionally overload one 12-2 cable This is also bad, but not as bad as paralleling, but there may be a way to "make it legal". If you look in the code book, 12 AWG wire is legal to 30 amps if you can run it at 90 degrees C. Which you can't except for very narrow conditions.

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