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.
For a single pole light switch, typically you would use 14-gauge wire which is commonly used for lighting circuits in residential settings. It's always a good idea to check your local electrical code requirements to ensure you are using the correct wire gauge.
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 recommended wire size for a 20 amp breaker is typically 12-gauge wire.
The appropriate wire size for a 25 amp breaker is typically 10 gauge wire.