Where does 120240 volts come from Where does

Where does 120/240 volts come from?

Where does 120/240 volts come from? 3 wires to your residence Transformer on the Utility Pole

Where does 120/240 volts come from? This wire is ‘center-tapped’ at the transformer winding and is known as the ‘N’ – Neutral.

Where does 120/240 volts come from? This ‘N’ wire is also connected to ‘EARTH. ’

Where does 120/240 volts come from? This wire is electrically ‘H’ – HOT. ’

Where does 120/240 volts come from? 120 v

Where does 120/240 volts come from? 120 v ? v

Where does 120/240 volts come from? 120 v

Where does 120/240 volts come from? 120 v ? v 120 v

Where does 120/240 volts come from? 120 v 240 v 120 v

Where does 120/240 volts come from? ? v

Where does 120/240 volts come from? 0 v

Where does 120/240 volts come from? ? v

Where does 120/240 volts come from? 120 v

Where does 120/240 volts come from? 120 v This wire is ‘H’ and you will get electrocuted if you come in contact with it.

Where does 120/240 volts come from? ? v

Where does 120/240 volts come from? 120 v

Where does 120/240 volts come from? This wire is ‘H’ and you will get electrocuted if you come in contact with it. 120 v

Where does 120/240 volts come from? This wire is labeled as ‘L 1. ’

Where does 120/240 volts come from? This wire is labeled as ‘L 1. ’ This wire is labeled as ‘N. ’

Where does 120/240 volts come from? This wire is labeled as ‘L 1. ’ This wire is labeled as ‘N. ’ This wire is labeled as ‘L 2. ’

Where does 120/240 volts come from? This wire is labeled as ‘L 1. ’ This wire is labeled as ‘N. ’ This wire is labeled as ‘G. ’ This wire is labeled as ‘L 2. ’

Where does 120/240 volts come from? This wire is labeled as ‘L 1. ’ This wire is labeled as ‘N. ’ This wire is labeled as ‘G. ’ This wire is labeled as ‘L 2. ’ Note that ‘EARTH’ ground is the ‘reference’ for our electrical systems.

Where does 120/240 volts come from? L 1 – N = ? v. L 2 – N = ? v. L 1 – L 2 = ? v. N L 2

Where does 120/240 volts come from? L 1 – N = 120 v. L 2 – N = ? v. L 1 – L 2 = ? v. N L 2

Where does 120/240 volts come from? L 1 – N = 120 v. L 2 – N = 120 v. L 1 – L 2 = ? v. N L 2

Where does 120/240 volts come from? L 1 – N = 120 v. L 2 – N = 120 v. L 1 – L 2 = 240 v. N L 2

Where does 120/240 volts come from? According to the NEC, National Electric Code, when there is a three wire circuit (L 1/N/L 2) there are two hots and one neutral.

Where does 120/240 volts come from? BUT, also according to the NEC, National Electric Code since 1987, when there are two wires, there CANNOT be a NEUTRAL.

Where does 120/240 volts come from? So what is the identification of two wires with a NEUTRAL? L 1(H) – L 2 Since L 1 is marked ‘H’ or hot, it is hot. And since L 2 is not marked ‘H’ it is not hot, therefore it is NEUTRAL and it cannot be labeled as ‘N’ since there are only two wires.

Where does 120/240 volts come from? So what is the identification of two hot wires? L 1 – L 2 Since neither L 1 nor L 2 are marked as ‘H’ or hot, they are both ‘H. ’

Where does 120/240 volts come from? Go to page A 2 in your Student Handout Packet and checkout the ID (identification) on the disconnects in the upper right corner of the page.