Introduction. This podcast is based on information from https://www.asutpp.com/ When you turn on a light switch, you expect the room to light up. You don't think about the incredible amount of electrical power that is required to make that happen. Electrical power is one of the most basic concepts in electricity, and yet it is still fascinating to …

What Is Extra-Low Voltage and Why Is It Used in Hazardous Areas? Extra-low voltage (ELV) is a type of electrical wiring system that uses low voltage and current levels. It is used in hazardous areas where the risks are great, such as swimming pools, wandering-lead hand lamps, and other portable appliances for outdoor use. ELV systems are often pref…