What is the minimum thickness of a steel sleeve or plate required to protect nonmetallic-sheathed cable?

The minimum thickness of a steel sleeve or plate required to protect nonmetallic-sheathed cable is established in the National Electrical Code (NEC) to ensure proper safeguarding of the cable from potential physical damage. A thickness of 1/16 inch provides adequate protection against typical hazards that might occur in various installation environments. This thickness has been determined to effectively prevent punctures, cuts, or other forms of damage that could compromise the integrity of the nonmetallic-sheathed cable.

In environments where cables are exposed to physical threats, utilizing protective measures that meet these specifications is crucial. By adhering to the 1/16 inch standard, electricians ensure that the necessary precautions are taken to protect wiring systems, thereby enhancing safety and functionality in electrical installations.