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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
Ground clamp
Antenna lead-in wire
Antenna discharge unit (NEC
Section 810-20)
Grounding conductors (NEC
Section 810-21)
Figure 1. Proper grounding for the cable
14
Safety and warranty guide
Power service grounding
electrode system (NEC
Article 250, Part H)
Ground clamps
Electronic service
equipment
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