Certified Fiber Optics Practice Exam

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What type of cable would be most appropriate for non-conductive applications in plenum spaces?

OFCR
OFNR
OFCP
OFNP

The correct answer is: OFNP

Optical Fiber Non-conductive Plenum (OFNP) cable is specifically designed for use in non-conductive applications in plenum spaces, which are areas in buildings used for air circulation, such as spaces above ceilings or below floors. The key characteristic of OFNP cables is that they are made with materials that do not conduct electricity and meet stringent fire safety standards, ensuring low smoke and low flame spread properties. Using an OFNP cable in these environments minimizes the risk of fire hazards and toxic smoke during a fire, making it the safest choice for installation in plenum spaces. In contrast, other cable types, such as OFCR or OFNR, may not be suitable for plenum applications due to their construction and fire ratings. Therefore, OFNP is the optimal choice for ensuring safety and compliance in non-conductive applications within these spaces.