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The most important thing for safety is to wire the pump to the correct voltage marked on the pump.
All else being equal (i.e. the cost of the pump), use 220 -- the higher the voltage the less electricity lost to resistance and heat.
ANS 2 Most modern pool or spa pumps are convertible (at the motor connection) Connecting to 220 is definitely more efficient.
Ans 3: 110 v is safer, with a lower risk of shock. For a pump of 1 HP or less the power lost in the wiring is very small if the right wire is used.
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What is the current through a wire that has a resistance of 30 ohms if the voltage is 45 volts?
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How do you come up with 277 volts?
The star point or wye voltage of a 480 volt three phase four wire system is 277 volts. The 480 voltage is divided by the sq root of 3 (for 3 phases). The sq root of 3 is 1.73. 480 volts/1.73 = 277 volts. The same formula is used on all three phase four wire systems. 208 volts /1.73 = 120 volts, 416 volts /1.73 = 240 volts, 600 volts / 1.73 = 347 volts.
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Wire size is rated in Ampacity, so yes, You have to divide watts by the voltage to give you the current (Amps). Strange question, the only use for 22AWG wire that I know of is analogue control, 24 volts, 4-20mA. 22AWG is not even listed in the NEC as a Current Carrying Conductor.
Can a single duplex receptical be wired for 120 volts and a second single duplex receptical be wired for 220 volts if they both reside in the same two gang electrical box?
Yes, the feeder will have to be a three wire cable.
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How do you test the fuel-pump on1999 silverado truck?
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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.
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Should be 12 volts, check the fuel pump relay and clean the ground wire to the fuel pump. In fact clean all the ground connections on the vehicle.
What size in amperage circuit breaker should be used for a pool pump?
The sizing of the circuit breaker and hence the wire size to feed the pump are all dependant upon the amperage of the pump. This question can not be answered without that information.
12 volts to run the fuel pump and all i can get is 11 volts from the relay that runs the fuel pump on 2005 dodge durango 5.7 hemi.?
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When the key is turn on there should be 12.5 volts on one wire (there are three wires). There is also a ground wire and a wire from the ECM for the transistor.
You have 220v wiring 2 hots 1 common from breaker box to pool wiring box Common is wired to equipment ground is that correct?
Correction - 2 hot (2 * 120) = 240 volts common - neutral U R 100% correct PS: 240 motor for pool ? hmmm, learn something everyday The cable from the breaker box to the pool should be a 3 conductor. In that 3 conductor cable there should be a bare ground wire (the ground wire is not included in a cable wire count). The pool ground should be connected to that bare wire, not the white neutral. This bare ground wire is then grounded back at the breaker panel to provide a direct path to trip the breaker in case of a short circuit. Code requires a GFCI ahead of the pool load to detect ground faults. See related links below on GFCI's
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The equipment - pump etc - should have a ground connector with the wiring if it is the plug in type. If the equp. is to be hardwired then a separate green wire should be pulled into the conduit from the source to the pump etc. In addition to that all the equipment should be bonded electrically. Your electrician will know what this means. By connecting this green wire as per code you should be Ok. However, this is a job for a qualified electrician who knows the codes in your area. As for connecting the metal walls of the pool - I do not know what the code calls for in your state for grounding or bonding this piece. k
Is there a voltage carrying limit of wire?
Yes it depends on many variables such as what the wire is made of the size of the wire whether the wire is a multi strand wire. What governs the amount of voltage a wire can carry is the insulation that is wrapped around the wire. Like wire with ratings of 300 volts, 600 volts and 1000 volts these are the highest allowable voltages that can be applied. A wire that is rated for 300 volts is good for 120 volts, 240 volts and 277 volts. At test research facilities, insulation is tested to destruction. The label that is given to the wire insulation as a result of the tests is the highest safest voltages that can be applied to that particular type.
What size wire do you use to install a 40 amp breaker for a 2amp pool pump?
I think you mean 2 HP pump. I am assuming a 220 To 240 volt supply and that should equate to about a 12 amp current. All my pumps use only a 30 amp breaker and 10 AWG wire.
