Equipment & SystemsQuestion 334 of 521
How must Class 2 conductors generally be separated from electric light and power conductors?
a.They may be freely mixed with 480 V conductors
b.6 inches with no exceptions
c.12 inches always
d.At least 2 inches from power conductors unless a permitted separation method is used
Explanation
Section 725.136 generally requires Class 2 conductors to be separated at least 2 inches from conductors of electric light, power, and Class 1 circuits, unless one of the permitted separation methods (such as a barrier or listed cable) is used. Freely mixing them in a raceway or enclosure with power conductors is not allowed.
Law Reference: 2023 NEC §725.136Practice all 521 questions free — no signup required.
Related questions on this topic
- A power-limited fire alarm (PLFA) power source is limited to what maximum output?
- How must fire alarm circuit cables be installed and supported?
- What best characterizes a Class 2 circuit?
- When is a primary protector required on a communications circuit?
- What is the minimum size of the bonding/grounding conductor for a communications system?
- The equipotential bonding for perimeter surfaces around a permanently installed pool must extend how far from the inside walls of the pool?
Last reviewed: · editorial process
PrepPass Editorial Team · Verified against California CSLB C-10 Electrical Trade Examination · How we review