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Which wire carries the voltage?
Electrical wire.
How can you check if you have 240 volts on a 30 amp two pole breaker?
A simple voltage tester. Just check both sides of the breaker where the wire comes in
How much voltage can a 20 gauge wire carry?
The voltage does not depend on the gauge of the wire, but on the thickness and type of insulation.
Why are you reading 230v between neutral and hot on a dryer receptacle?
it is a miss-wire, check what voltage you get between ground and the other hot!
White wire a black wire a red wire and a bare wire?
white wire = neutral bare wire = ground black wire = line voltage red wire = returned from a switch, or the other phase of line voltage in order to supply 240VAC
How do you determine which wire is the 'feed' wire?
Check it with a voltmeter or with a voltage detector.
What green wire is positive and what green wire is negative?
Normally a green wire is never used as a positive connection. It is almost always a ground or negative wire. Take a multimeter and check both wires. Set the multimeter to the DC voltage setting and check each wire. If one of them has voltage it will show up. Now set the multimeter to ohms and check the other wire. If it is a ground wire you will see the meter register.
What else should you do if your AC fan will not stay on and you already have a new fan motor and cap?
Check to see that you are getting voltage to the motor. You must check for both high and low voltage. The low voltage for the fan usually comes from the green thermostat wire. Set your thermostat to the off position but the fan in the on position. Put your meter leads to the red thermostat wire and the common wire(usually blue) and you should get 24 volts. If you have no common wire use the red and yellow wire. This will establish that the transformer is working. If you get 24 volts the transformer is good, if you get no voltage reading the transformer is either bad or you have no high voltage getting to the unit. If your transformer is good check from red wire to the green wire, if you get 24 volts you have a bad tstat; if you get no voltage that indicates the tstat is good and the fan should be working, again check for high voltage. It could also be a bad fan relay.
What gauge wire do you need from alternator to batt one wire hook up?
I would check the maximum current produced by the alternator then check charts to see what gauge wire is needed. As a general rule, I would start with #4 AWG copper. As wire size decreases, the resistance of the wire increases and more heat is generated in the wire. Also as resistance increases, the voltage at the other end decreases due to voltage drop in the wire.
Why neutral ground voltage is 120v sometime 0v?
There should be no voltage on the neutral wire to ground. This is a serious situation. Call a qualified electrician to check this out.
How size wire to use if i need 50amp after 500 meter 220volt?
Check the internet for a voltage drop calculator.
Why 5KV voltage is applied to Megger for insulation resistance measurement?
It is a easy voltage to obtain and can check for breakover in the insulation. The voltage is higher then what would be put through most wire and shows any weakness.
What is the measure of the voltage decrease along a wire?
Decrease or reduction of voltage along the wire is called voltage drop. It is measure through wire and load resistance difference.
Which wire carries the voltage?
Electrical wire.
Why does only one high beam work on a 1994 Nissan Sentra?
Check the bulb and voltage coming out of the socket. If there is no voltage then the jumper wire may be bad. Just run a new wire from the working headlight to the non working headlight.
Is cat5 wire considered low voltage?
Yes. cat6 is low voltage / signal wire.
How can you check if you have 240 volts on a 30 amp two pole breaker?
A simple voltage tester. Just check both sides of the breaker where the wire comes in
