Current through Register Vol. XLI, No. 50, December 13, 2024
Section 36-48-8 - Test Circuits8.1. Each ground-fault current device shall be provided with a test circuit that will inject a current of 50 percent or less of the current rating of the grounding resistor and cause each corresponding circuit interrupting device to open. The test circuit shall not subject the equipment to an actual phase-to-phase ground fault.8.2. All components that provide short-circuit protection shall have an interruption rating in accordance with maximum short-circuit currents available inby that circuit interrupting device(s), and shall be rated for the maximum phase-to-phase voltage of the circuit.8.3. High-voltage circuits shall be protected against short-circuits, overloads, ground faults, and undervoltage by a circuit interrupting device of adequate interrupting capacity.8.4. The miner high-voltage trailing cable shall be provided with undervoltage protection which operates on loss of voltage to cause and maintain the interruption of power to the circuit to prevent automatic restarting of the equipment.8.5. Circuit interrupting devices shall not reclose automatically.