Which type of cables is commonly used for low voltage (LV) conductors?

THHN is a type of thermoplastic insulation that is often used for low voltage (LV) conductors. It is suitable for use in a variety of commercial and residential applications, possessing heat and moisture resistance, which makes it ideal for environments where the cables may be exposed to harsh conditions. This cable type is rated for 600 volts, which aligns well with typical low voltage applications.

The performance characteristics of THHN, such as its flexibility, durability, and ability to be installed in conduits, further contribute to its widespread use in electrical wiring for low voltage systems. When considering installation practices, THHN is often used as a building wire, making it a reliable option for electricians working with low voltage circuits.

Understanding the specific applications and ratings of different cable types underscores why THHN is the preferred choice for low voltage conductors in most wiring environments. Other options, while having their own uses in the electrical field, do not align with the common requirements and application scenarios of low voltage installations.