High voltage work is when a person works with electricity that has much more power than the kind of electricity found in your house. High voltage work is very dangerous, because it can give you a powerful electrical shock and can even be deadly. That's why special safety procedures have to be followed when doing high voltage work. Before you can do high voltage work, you need to get training to learn how to do it safely. You also need to wear special safety equipment to protect you from the high voltage currents.