Understanding In-Wall Cable Ratings (CL2): Do You Have to Use Them Inside Walls?
You might see "in-wall rated" or "CL2" on a cable and wonder if it's strictly for in-wall installations. the answer is no! These ratings indicate that the cable's outer jacket is designed to slow the spread of fire, meeting specific building safety standards.
This fire-resistant feature doesn't affect the cable's performance in any way. So, you can use CL2-rated cables for any application, whether running through walls, along baseboards or connecting devices on your desk.