20- The protection element used in the method based on the current flowing from this weak point to the ground by weakening the insulation level in areas where possible skipping may occur, which is the correct one? a) Arc extinguishing coil b) SF6 gas circuit breaker c) Disconnector d) Melting wire fuse e) Arc horn

20- The protection element used in the method based on the current flowing from this weak point to the ground by weakening the insulation level in areas where possible skipping may occur, which is the correct one? a) Arc extinguishing coil b) SF6 gas circuit breaker c) Disconnector d) Melting wire fuse e) Arc horn

EBK ELECTRICAL WIRING RESIDENTIAL

19th Edition

ISBN:9781337516549

Author:Simmons

Publisher:Simmons

Chapter6: Ground-fault Circuit Interrupters, Arc-fault Circuit Interrupters, Surge Protective Devices, Immersion Detection Circuit Interrupters, And Appliance Leakage Current Interrupters

Section: Chapter Questions

Problem 30R: NEC 210.12(A) requires AFCI protection for the branch-circuit wiring that supplies all electrical...

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