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Installing a Wall TV and Cable Box

Installing the Cable Wiring and a Special Data Com Box for a Wall Mounted TV

Wall Mounted TV

Electrical Question: I have a wall mounted TV, and behind it is a Data Comm Electronics 45-0010-BK box, with a receptacle installed in it per NEC and the box’s instructions.
The cable box fits inside this box, but its “wall wart” power adapter didn’t fit, so I used a 12″ extension cord (“power strip liberator”) to make it fit.
Is it legal to tuck the excess wiring into the drywall cavity through the holes in the box like this?


Background: Matt, a Homeowner from Tallahassee, FL, USA.
Additional Comments: Love the website.

Dave The Electrician’s Reply:
Thanks for your electrical wiring question Matt.

Installing the Cable Wiring and a Special Data Com Box for a Wall Mounted TV

Skill Level: Beginner to Intermediate.
Tools Required: Basic Straight Slot and Philips  Screw drivers for assembling the TV, a Flashlight to help read the Cable Connection Ports.
Estimated Time: Depends on personal level experience and ability to work with tools and assemble the mounting bracket, install the TV and components.
Precaution: If installing or relocating receptacle outlet power make sure to Identify the circuit, turn it OFF and  Tag it with a Note before working with the wiring.
Notice: Installing additional electrical circuit wiring should be done according to local and national electrical codes with a permit and be inspected.
Recommended: Select a dependable Surge Protection Plug Strip to be used for all HDTV home theater system components to protect against power surges and other home power problems.

Cable Wiring for a Wall Mounted TV

Telephone Wiring

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