What is the minimum size copper equipment grounding conductor for a 30-ampere branch circuit for neon tubing installation?

For a 30-ampere branch circuit used for neon tubing installation, the National Electrical Code (NEC) specifies that the minimum size for a copper equipment grounding conductor should be determined based on the rating of the overcurrent protection device and the associated requirements.

According to NEC Table 250.122, for a 30-amp circuit, the minimum size grounding conductor is typically 10 AWG copper. This size ensures that the equipment grounding conductor is adequate to safely handle any fault or ground currents, providing proper protection against electrical shock and equipment damage.

It’s important to adhere to these standards to maintain safety and compliance within electrical installations.