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Part VIII Direct-Current Systems

National Electrical Code 2020 of Illinois > 2 Wiring and Protection > 250 Grounding and Bonding > VIII Direct-Current Systems

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Part VIII Wiring and Protection, Direct-Current Systems

National Electrical Code 2020 of Illinois > 2 Wiring and Protection > 250 Grounding and Bonding > VIII Direct-Current Systems

Part VIII Wiring and Protection, Direct-Current Systems

National Electrical Code 2017 of Illinois > 2 Wiring and Protection > 250 Grounding and Bonding > VIII Direct-Current Systems

685.12 Special Equipment, Direct-Current System Grounding

Two-wire dc circuits shall be permitted to be ungrounded ...

National Electrical Code 2020 of Illinois > 6 Special Equipment > 685 Integrated Electrical Systems > 685.12 Direct-Current System Grounding

685.12 Special Equipment, Direct-Current System Grounding

Two-wire dc circuits shall be permitted to be ungrounded ...

National Electrical Code 2017 of Illinois > 6 Special Equipment > 685 Integrated Electrical Systems > 685.12 Direct-Current System Grounding

(A) Wiring and Protection, Two-Wire, Direct-Current Systems

with 250.20 shall not be required to be grounded. Exception No. 3: Direct-current fire alarm circuits having a maximum current of 0.030 ampere as specified ...

National Electrical Code 2020 of Illinois > 2 Wiring and Protection > 250 Grounding and Bonding > 250.162 Direct-Current Circuits and Systems to Be Grounded > (A) Two-Wire, Direct-Current Systems