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15) Apparatus should not be exposed to dripping or splashing, and objects filled with liquids, such as
vases, should not be placed on the apparatus.
16) An outside antenna system should not be located in the vicinity of overhead power lines or other
electric light or power circuits, or where it can fall into such power lines or circuits. When installing an
outside antenna system, extreme care should be taken to keep from touching such power lines or
circuits, as contact with them might be fatal.
17) Do not overload wall outlets and extension cords, as this can result in a risk of fire or electric shock.
18) Do not push objects through any openings in this unit, as they may touch dangerous voltage points
or short out parts that could result in fire or electric shock. Never spill or spray any type of liquid into
the unit.
19) If an outside antenna or cable system
is connected to the unit, be sure the
antenna or cable system is grounded
to provide some protection against
voltage surges and built-up static
charges, Section 810 of the National
Electrical Code, ANSI/NFPA 70, 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
DISCHARGE UNIT
(NEC SECTION 810-20)
ANTENNA LEAD IN WIRE
GROUNDING CONDUCTORS
(NEC SECTION 810-21)
GROUND CLAMPS
POWER SERVICE GROUNDING
ELECTRODE SYSTEM
(NEC ART 250, PART H)
GROUND
CLAMP
ELECTRIC SERVICE
EQUIPMENT
NEC-NATIONAL ELECTRICAL CODE
S2898A
EXAMPLE OF ANTENNA GROUNDING AS PER THE NATIONAL ELECTRICAL CODE
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