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Note to the CATV Installer:
This reminder is provided to call the CATV system installer’s attention to Article 820-40 of the NEC that provides guide-
lines 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 cable entry as practical.
Antenna Grounding According to the NEC
Antenna Grounding According to the National Electrical Code,ANSI/NFPA 70.1.
1. Antenna lead in wire
2. Antenna discharge unit (NECSection 810-20)
3. Grounding conductors (NECSection 810-21)
4. Ground clamp
5. Power service grounding electrode system (NECArticle 250,Part H)
6. Ground clamp
7. Electric service equipment
