How far from the coupling should metal straps be placed on conduit?

The requirement to place metal straps on conduit within 3 inches from the coupling is rooted in electrical code guidelines that ensure secure mounting of the conduit system. Proper support helps to maintain the integrity and structural stability of the conduit, which is essential for both safety and functionality. When metal straps are installed close to the coupling, it reduces the risk of movement or vibration, which could potentially lead to wear and damage over time.

This specific distance helps to ensure that the conduit is adequately supported, preventing sagging and ensuring that the electrical wiring within the conduit remains protected. Additionally, having the straps placed at this distance aligns with best practices for installation, thereby promoting safety and compliance with local codes and regulations regarding electrical systems.