Which marking indicates suitability for general use in non-plenum spaces?

Which marking indicates suitability for general use in non-plenum spaces?

• A. FPLP
• B. CMP
• C. CMG
• D. CMX

Answer: (C)

Understanding cable markings helps you pick the right cable for where it will be installed. For non-plenum spaces—normal rooms and walls that aren’t air-handling areas—the marking that indicates general-use in those spaces is the one you want. The CMG designation belongs to the CM family and shows it’s suitable for general use in non-plenum locations. CMP, by contrast, is reserved for plenum spaces (air-handling areas) and requires a higher fire/smoke rating. The other markings represent different, more specialized ratings and aren’t the general-use non-plenum designation. So the marking that signals suitability for general use in non-plenum spaces is CMG.

Understanding cable markings helps you pick the right cable for where it will be installed. For non-plenum spaces—normal rooms and walls that aren’t air-handling areas—the marking that indicates general-use in those spaces is the one you want. The CMG designation belongs to the CM family and shows it’s suitable for general use in non-plenum locations.

CMP, by contrast, is reserved for plenum spaces (air-handling areas) and requires a higher fire/smoke rating. The other markings represent different, more specialized ratings and aren’t the general-use non-plenum designation. So the marking that signals suitability for general use in non-plenum spaces is CMG.