SC Burglar Alarm Practice Questions - South Carolina Burglar Alarm Contractor Examination Exam

Why does the NEC allow simplified wiring methods for Class 2 circuits compared with Class 1 or power circuits?

Class 2 circuits are limited so they are considered safe from a fire-initiation standpoint and, in dry locations, from electric shock Class 2 circuits may operate at 600 volts without overcurrent protection Class 2 circuits are required to be installed only in rigid metal conduit Class 2 circuits are exempt from all grounding and support rules

Correct Answer:

Class 2 circuits are limited so they are considered safe from a fire-initiation standpoint and, in dry locations, from electric shock

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