Does the NEC generally require a conductor to have overcurrent protection at the supply point?

The National Electrical Code (NEC) mandates that conductors must have overcurrent protection at the supply point to ensure safety and prevent the risk of fire or equipment damage due to excessive current. Overcurrent protection devices, such as circuit breakers or fuses, are critical components in electrical systems, designed to interrupt the flow of electricity when the current exceeds safe levels. This requirement is in place for all types of installations, not limited to residential or commercial applications, thereby enhancing the safety and reliability of electrical systems across different settings. By providing this protection, the NEC helps to safeguard both property and lives, making it a fundamental aspect of electrical safety regulations.