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Note to CATV system installer
This reminder is provided to call the CATV system installer's attention to Article
820-40 of the National Electrical Code (NEC) that 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 as possible to the point of cable
entry as practical.
Example of antenna grounding
1 Ground clamp 5 Power service grounding electrode system (NEC
Article 250, Part H)
2 Antenna lead-in wire 6 Ground clamps
3 Antenna discharge unit (NEC
Section 810-20)
7 Electronic service equipment
4 Grounding conductors (NEC
Section 810-21
Figure 1. Proper grounding for the cable
xiv User Guide