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15
ENGLISH
Outdoor Antenna Grounding
• If an outdoor antenna is installed,
follow the precautions below. An
outdoor antenna system should
not be located in the vicinity of
overhead power lines or other
electric light or power circuits, or
where it can come in contact with
such power lines or circuits as death
or serious injury can occur. Be sure
the antenna system is grounded to
provide some protection against
voltage surges and built-up static
charges. Section 810 of the
National Electrical Code (NEC) in
the U.S.A. provides information with
respect to proper grounding of the
mast and supporting structure,
grounding of the lead-in wire to
an antenna discharge unit, size of
grounding conductors, location of
antenna discharge unit, connection
to grounding electrodes and
requirements for the grounding
electrode.
Antenna grounding according to
the National Electrical Code, ANSI/
NFPA 70
Antenna Lead in Wire
Grounding Conductor (NEC
Section 810-21)
Antenna Discharge Unit (NEC
Section 810-20)
Power Service Grounding
Electrode System (NEC Art
250, Part H)
NEC: National Electrical Code
Ground Clamp
Electric Service
Equipment
Ground Clamp
For USA
NOTE TO CABLE/TV INSTALLER
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, species
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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