Cables and conductors of Class 3 circuits should be placed with which type of circuits?

Class 3 circuits are designed for low voltage, limited power, and have specific installation requirements to ensure safety and compliance with electrical codes. These circuits are typically used for communication and control systems, which include various signaling applications such as intercom systems, alarm systems, and other low-voltage communication devices.

When considering the placement of Class 3 circuits, it is crucial to align them with circuits that have similar power and safety characteristics. Non-power-limited fire alarm circuits are designed to operate under fire conditions without the limitation of power that Class 3 circuits require, making it unsafe to group them together.

Low-voltage power circuits and Class 1 circuits are also unsuitable due to their distinct properties. Low-voltage power circuits generally carry a higher power level compared to what Class 3 circuits can handle, and Class 1 circuits can carry higher voltage and current than the Class 3 standards allow.

Signaling circuits are more compatible with Class 3 circuits as they typically operate within the same low-voltage framework and do not create interference or pose safety risks when installed together. This compatible nature makes signaling circuits the appropriate choice for placement alongside Class 3 circuits, ensuring both functionality and safety are maintained according to the National Electrical Code and local regulations.