## Electrical Measurements Explained

What does 24 Volts, @ 15 amps mean? What is a watt? What’s a watt-hour? What about an amp-hour? These are all crucial ways of measuring how much electricity is present, at what rates, and just how much that electricity wants to move. We are going to be greatly simplifying these concepts, so as always, consult an electrician before working on or making any electrically involved decisions. Volts and Amps We’re going to start with the basics: What’s in the wire. The wires around you contain electrons. The movement of these electrons is electricity. When there is electricity, such as a light switch being turned on, electrons are moving through the wire, creating magnetic fields and heat, among other things. Volts are the amount of force pushing those electrons. A low voltage source such as a double A battery has just enough force inside it to make electrons move through a wire. It doesn’t quite have enough force to shoot electrons into the air and make lightning like an industrial transformer could. The flow of these electrons is called Current, which we measure in Amps (amperes). It’s easiest to picture the current as a flow-rate, “one gallon per hour.” We can measure the total amount of amps with an Amp-Hour. For example, if we have a pump that needs 10 Amps to run, and it runs for One Hour, that it runs at 10 Amp-Hours. In 24 hours, it will […]