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13.Outdoor Antenna grounding-If an outside antenna or
cable system is connected to the unit, be sure the antenna
or cable system is grounded so as to provide some protec-
tion against voltage surges and built-up static charges.
Article 810 of the National Electrical Code, ANSI/NFPA
No. 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. (Fig. A)
14.Lightning-For added protection for this unit receiver dur-
ing a lightning storm, or when it is left unattended and
unused for long periods of time, unplug it from the wall
outlet and disconnect the antenna or cable system. This will
prevent damage to the unit due to lightning and power-line
surges.
15.Power Lines-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.
16.Overloading-Do not overload wall outlets and extension
cords as this can result in a risk of fire or electric shock.
17.Object and Liquid Entry-Never push objects of any kind
into this unit through openings as they may touch danger-
ous voltage points or short out parts that could result in a
fire or electric shock. Never spill liquid of any kind on the
unit.
18.Servicing-Do not attempt to service this unit yourself as
opening or removing covers may expose you to dangerous
voltage or other hazards. Refer all servicing to qualified
service personnel.
19.Damage Requiring Service-Unplug this unit from the wall
outlet and refer servicing to qualified service personnel
under the following conditions:
a. When the power-supply cord or plug is damaged or frayed.
b. If liquid has been spilled, or objects have fallen into the
unit.
c. If the unit has been exposed to rain or water.
d. If the unit does not operate normally by following the oper-
ating instructions. Adjust only those controls that are cov-
ered by the operating instructions, as improper adjustment
of other controls may result in damage and will often
require extensive work by a qualified technician to restore
the unit to its normal operation.
e. If the unit has been dropped or damaged in any way.
f. When the unit exhibits a distinct change in performance,
this indicates a need for service.
20.Replacement Parts-When replacement parts are required,
be sure the service technician has used replacement parts
specified by the manufacturer that have the same character-
istics as the original part. Unauthorized substitutions may
result in fire, electric shock, injury to persons or other haz-
ards.
21.Safety Check-Upon completion of any service or repairs to
this unit, ask the service technician to perform routine safe-
ty checks to determine that the unit is in proper operating
condition.
22.Heat-This unit product should be situated away from heat
sources such as radiators, heat registers, stoves, or other
products (including amplifiers) that produce heat.
GROUND CLAMPS
NEC - NATIONAL ELECTRICAL CODE
EXAMPLE OF ANTENNA GROUNDING AS PER
NATIONAL ELECTRICAL CODE
S2898A
WIRE
DISCHARGE UNIT
(NEC SECTION 810-20)
GROUNDING CONDUCTORS
(NEC SECTION 810-21)
ELECTRODE SYSTEM
(NEC ART 250, PART H)
SERVICE
EQUIPMENT
CLAMP
ANTENNA
LEAD IN
ANTENNA
POWER SERVICE GROUNDING
GROUND
ELECTRIC
FIGURE A
CAUTION: TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG TO WIDE SLOT, FULLY
INSERT.
ATTENTION: POUR ÉVITER LES CHOC ÉLECTRIQUES, INTRODUIRE LA LAME LA PLUS LARGE DE
LA FICHE DANS LA BORNE CORRESPONDANTE DE LA PRISE ET POUSSER JUSQU’AU FOND.