What is classified as low voltage wiring?

In the context of alarm systems and electrical work, low voltage wiring refers to electrical wiring that operates at a voltage lower than standard household voltage, which is typically around 120 volts in the USA. The classification of low voltage can vary among different regulatory bodies and standards, but it is generally accepted that low voltage is categorized as wiring operating below 50 volts.

Therefore, wiring classified as low voltage is safe to handle and less likely to cause serious harm or injury compared to higher voltage systems. This classification allows for less stringent safety regulations and requirements, making installation simpler in many residential and commercial settings.

Choosing 50 volts as the upper threshold for low voltage is consistent with various electrical codes and standards, ensuring that the wiring is used primarily for applications such as alarm systems, communication systems, and other low-power uses, avoiding the risks associated with higher voltage.