energized black wire—and you are also in contact with the neu- tral white wire—current will pass through your body. You will receive an electrical shock.
❚ conductor—material in which an electrical current moves easily
❚ neutral—at ground potential (0 volts) because of a connection to ground
Metal electrical boxes should be grounded to prevent shocks.
Black and red wires are usually energized, and white wires are usually neutral.
If you are in contact with a live wire or any live component of an energized electrical device—and also in contact with any grounded object—you will receive a shock. Plumbing is often grounded. Metal electrical boxes and conduit are grounded.
Your risk of receiving a shock is greater if you stand in a puddle of water. But you don’t even have to be standing in water to be at risk. Wet clothing, high humidity, and perspiration also increase your chances of being electrocuted. Of course, there is always a chance of electrocution, even in dry conditions.
❚ You will receive a shock if you touch a live wire and are grounded at the same time.
❚ When a circuit, electrical component, or equipment is energized, a potential shock hazard is present.