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Outdoor Antenna Grounding--If an outside
antenna or cable system isconnected to the product,
be sure the antenna or cable system is grounded so as 17
to provide some protection against voltage surges and
built-up static charges. Section 810 of the National
Electrical Code, ANSI/NFPA No. 70-1984 (Section 54 of
Canadian Electrical Code, Part 1) provides information 18
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, A.
connection to grounding electrodes, and requirements B.
for the grounding electrode. See example below.
Example of Antenna Grounding
LEAD IN
WIRE
_ROUND CLAMP
ANTENNA
UNIT
(NEC SECTION 81_-20)
GROUNDING CONDUCTORS
(NEC SECTION 810-21)
AMPS
ELECTRIC SERVICE POWER SERVICE GROUNDING
EDUJPMENT ELECTRODE SYSTEM
(NEC ART 250, PART H)
13 Power Lines--An outside antenna system should not
be located in the vicinity of overhead power lines,
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 or approaching such power
lines or circuits as contact with them might be fatal.
Installing an outdoor antenna can be hazardous and
should be left to a professional antenna installer.
Use
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Cleaning--Unplug this product from the wall outlet
before cleaning. Do not use liquid cleaners or aerosol
cleaners. Use a damp cloth for cleaning.
Object and Liquid Entry--Never push objects of any
kind into this product through openings asthey may
touch dangerous voltage or "short-out" parts that
could result in a fire or electric shock. Never spill liquid
of any kind on the product.
Lightning--For added protection for this product
during 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
product due to
lightning and power
line surges.
Service
C,
D.
E,
Servicing--Do not attempt to service this product
yourself as opening or removing covers may expose
you to dangerous voltage or other hazards. Refer all
servicing to qualified service personnel.
Conditions Requiring Service--Unplug this product
from the wall outlet and refer servicing to qualified
service personnel under the following conditions.
When the power-supply cord or plug isdamaged.
If liquid has been spilled, or objects have fallen into the
product.
If the product has been exposed to rain or water.
If the product does not operate normally by following
the operating instructions. Adjust only those controls
that are covered by the operating instructions.
Improper adjustment of other controls may result in
damage and will often require extensive work by a
qualified technician to restore the product to its
normal operation.
If the product has been dropped or the cabinet has
been damaged.
When the product exhibits a distinct change in
performance, such as the inability to perform basic
functions--this indicates a need for service.
19
2O
Replacement Parts---When replacement parts are
required, have the service technician verify that the
replacement parts he uses have the same safety
characteristics as the original parts. Use of
replacements specified by the product manufacturer
can prevent fire, elect;rio shock, or other hazards.
Safety CheckBUpon completion of any service or
repairs to this product, ask the service technician to
perform safety checks recommended by the
manufacturer to determine that the product is in safe
operating condition.