In the example there is only a load on leg of the system. The line voltage will run through the load to the grounded conductor. In this example, the author is assuming a 25 ohm grounding electrode resistance and a 25 ohm load making the voltage on the neutral 60 volts. This neutral voltage will be transferred to every conductive object that is connected to the electrical grounding system via the main bonding jumper. With different commbintations of loads and grounding electrodes this voltage will differ. It could approach the normal line to neutral voltage.
I saw this graphic on the graphic of the day and not quite understanding why there would be voltage on metal parts. I always thought if the neutral were to come open in a residential setting, any loads plugged in would see the voltage between the two phases, with each load dropping a portion of the 240 volts. What am I missing?
