In enclosures, Class 2 and 3 circuits are permitted to be installed in a raceway to separate them from Class 1 non-power-limited fire alarm and medium-power network-powered broadband communication circuits.

Format: Most exams are open-book and consist of 80 to 100 multiple-choice questions.
Time Limit: You generally have between 3 to 5.5 hours depending on the specific license type.
Core Topics: Questions typically cover wiring methods, grounding and bonding, load calculations, and overcurrent protection.