LG OLED55G1PUA Owner's Manual page 28

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NOTE TO CABLE/TV INSTALLER
(For USA and Canada)
This reminder is provided to call the CATV system installer's attention to Article 820-40 of the National Electric Code (U.S.A.). The code provides
guidelines for proper grounding and, in particular, specifies that the cable ground shall be connected to the grounding system of the building, as
close to the point of the cable entry as practical.
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