1-5 of 5 Answers
In most, if not all, parts of the US a cable must meet or exceed the local building code in order to be installed behind drywall. A cable that complies with this CL-3 or CMG code is an "in-wall" cable.
Sorry, there was a problem. Please try again later.To clarify for anyone interested. In wall cable (more than 1 conductor) is not specified as "in wall approved" anywhere on a cable or by any building inspector or manufacturer.. Other circumstances determine if its ok to use in wall or not, not a rating. In a residential environment where a cable shall run fewer than 3 floors vertical and not at any point in an air handling space (plenum), any cable with a UL listing and labeling can be run in walls and ceiling spaces. Other factors that should be considered is the amount of voltage that the cable will be used for, whether or not it will be exposed to sunlight, whether or not it will be used in a wet location, and if the location is classified as a hazardous or life safety location (and more, I'm sure). That cable then must be used within the standards of the UL listing and labeling. Also for clarification, since I've seen this mis-stated too many times, a CL2 or CL3 rating has to do with power handling, and does NOT indicate in-wall / in-ceiling use. Final word... if your not sure, consult with a reputable professional. If you're still not sure, hire a professional. Inadequate cable and inadequate installation techniques can lead to headaches and can be dangerous!
Sorry, there was a problem. Please try again later.Generally speaking, In-Wall cables have different requirements. Mostly how they are shielded. This is because they may be running side-by-side with electrical wiring. Quality is the same for cables with "out-of-wall" specs.
Sorry, there was a problem. Please try again later.In wall refers to the casing around the wires. It’s rated to go in walls for fire code purposes even though it’s low voltage it still matters. Usually in wall options run a bit more money than standard on just about everything.
Sorry, there was a problem. Please try again later.If a cable is rated for in-wall use, it means you can safely run the cable through studs, etc inside of a wall or ceiling across a room.
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