That depends on the load. In other words how many amps does your load utilize or how many watts? Either figure will work.
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Wire size is based on amperage. The higher the load amperage the larger the wire size has to be. In this case also, the wire has to be increased in size to over come the voltage drop for the distance to the load. To receive an answer restate the question with the load amperage or wattage.
There's something wrong here. 3250 watts on 240 volts is only 13.5 amps, not 40. And that would be 12 gauge wire on a 20 amp circuit. But that seems low for an oven. If it truly is a 40 amp appliance then the gauge would be #8 wire. The wiring info that comes with the appliance should tell you everything you need to know.
Domestic wiring.: 1100 volts, 1.5 SQ-MM (22/0.3mm) lS:649
600 watts
5 amps
Ohm's Law states Volts = Amps x Resistance. You would need to apply 600 volts across 3 ohm load to have 200 Amps flow in circuit. Not sure what you are really asking and why you mentioned 2 gauge.
Conduit is just a medium to get the wires from one place to another. There is no voltage restrictions in low voltage wiring (750 volts or less). When it comes to conduit fill, electricians are governed by the electrical code conduit fill tables. The conduit is sized to accommodate the conductor size for a specific load.
13.9 to 14.2 volts.
Yes, 120 and 240 volts can be run in the same conduit.
There's something wrong here. 3250 watts on 240 volts is only 13.5 amps, not 40. And that would be 12 gauge wire on a 20 amp circuit. But that seems low for an oven. If it truly is a 40 amp appliance then the gauge would be #8 wire. The wiring info that comes with the appliance should tell you everything you need to know.
Volts are the "electromotive force" that is needed to "drive" the electricity through the wiring.
13.9 to 14.3 volts no lower and no higher.
It's highly possible. The difference in amperage might be minuscule but it all depends on the gauge of the wiring, the resistors, and the capacity of the board.
30 amps.
It is most likely a faulty gauge, as they are known for having problems. My volts gauge does the same thing.
The minimum cover requirements for direct buried conduits in vehicular areas is governed by the voltage in the conduit. Under 750 volts 600 mm (24 inches), over 750 volts 1000 mm (36 inches).
In U.S. residential wiring it is 240 volts.
you will need wiring that is at least 10 amp rated wire or higher. If you really needed to ask you might want to call an electrician Electrician here, be the pump 120 volts or 240 volts a #14 wire will handle the situation. Longer runs of 75 feet you should go to a #12 wire to compensate for voltage drop. The pump should be on its own separate circuit with a 15 amp breaker. A two pole 15 amp breaker if the pump is 240 volts.