The frequency has no direct relationship to the size of wire. Wire is sized as to the amount of current a load draws in a circuit.
running wire 12-2 300ft w/9ea. 27watt lights what size breaker should be used
Not enough information. Lights? Pumps?
Copper is preferable to aluminum and the size of wire should be the same or the next size down if copper is used.
A #4 copper conductor with an insulation factor of 75 or 90 degrees C is rated at 85 amps. This size wire will also be the same for a load amperage of 68 amps as the next wire size smaller #6 is only rated at 65 amps.
The wire size is dependent upon the wattage size of your water heater. The higher the wattage the larger the wire size. A standard 3000 watt heater will use a two pole 20 amp breaker connected to 2C #12 wire.
This can not be answered with the information you have given. 60Hz does not relate the the current draw so wire size can not be calculated.
running wire 12-2 300ft w/9ea. 27watt lights what size breaker should be used
Not enough information. Lights? Pumps?
The current caring capacity of a wire is based on the physical size of the wire. The larger the diameter of the wire the more amperage the wire is allowed to carry.
Copper is preferable to aluminum and the size of wire should be the same or the next size down if copper is used.
2.5 squre mm
Don't use aluminum wire inside the house.
A #4 copper conductor with an insulation factor of 75 or 90 degrees C is rated at 85 amps. This size wire will also be the same for a load amperage of 68 amps as the next wire size smaller #6 is only rated at 65 amps.
The wire size is dependent upon the wattage size of your water heater. The higher the wattage the larger the wire size. A standard 3000 watt heater will use a two pole 20 amp breaker connected to 2C #12 wire.
Depends on how many amps it pulls and the size of the wire in the circuit.
The messenger in triplex and quad is already determined by the wire size that is wrapped around it. It is the maximum span distance that you should find for the size of over head cable that is being used.
50 amp breaker wired with AWG # 6 wire.