What is the minimum bend radius for 1 in. diameter corrugated sheath MC cable?

The minimum bend radius for 1 inch diameter corrugated sheath MC (Metal Clad) cable is specified to be 7 inches, which is established to prevent damage to the cable insulation and conductors during installation. Correct bend radius is essential to maintain the integrity and functionality of the cable, as sharply bending the cable can lead to issues such as conductor breakage, insulation damage, and potential failures over time.

MC cable is designed to be flexible, but it still has limits to how tightly it can be bent. The National Electrical Code (NEC) provides guidelines for these specifications to ensure safety and longevity of electrical installations. Following the proper bend radius helps to prevent stress on the cable and ensures that it operates within its rated capacity.

It's also important to note that not following these guidelines can result in violations of safety codes and may lead to increased risk of electrical issues or hazards. Understanding the specifics of cable installation, including minimum bend radii, is vital for anyone involved in electrical contracting.