To answer this question the circuits voltage must be stated. Find the total wattage of the lights, use the following formula. I = W/E, where W is the total wattage and E is the circuit's voltage.
Yes. I am assuming this is a residential question. A better answer is...if the 8 recessed lights draw fewer than 16 amps together, it is good.
No. A 20 amp breaker needs 12 gauge wire.
No, 10 gauge wire requires the use of a 30 amp breaker. A 20 amp breaker is only used on 12 gauge wire.
A domestic D/W uses 14 gauge wire.
Use AWG # 6 wire.
Yes. In the US at least.
Yes. I am assuming this is a residential question. A better answer is...if the 8 recessed lights draw fewer than 16 amps together, it is good.
In residential wiring applications the most used is 14 gauge wire for light switches as long as the circuit breaker or the fuse is 15A. If your lighting circuit is on a 20A fuse/circuit breaker then you need to use 12 gauge wire
For a 30 amp breaker, a 10-gauge wire should be used.
For a 60 amp breaker, a 6-gauge wire should be used.
The recommended wire size for a 100 amp breaker is typically 2-gauge copper wire or 1/0-gauge aluminum wire.
No, it is not safe to use 10 gauge wire with a 30 amp breaker as the wire is not rated for that high of a current. It is important to use the correct wire gauge that matches the breaker amperage to prevent overheating and potential fire hazards. For a 30 amp breaker, you should use at least 10 gauge wire.
The recommended wire size for a 50 amp breaker is typically 6-gauge wire.
No. A 20 amp breaker needs 12 gauge wire.
No, because NEC says that 12 AWG wire is the smallest wire that can safely handle 20 A. If you installed a smaller wire on a 20 A breaker you could possibly overheat the wire and cause it to fail, which can start a fire. It would not be to code. And the National Electrical code does not list a 13 gauge wire.
The appropriate wire size for a 25 amp breaker is typically 10 gauge wire.
The appropriate wire size for a 30 amp breaker is typically 10 gauge wire.