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13.
Outdoor Antenna
Grounding-If
an outside
antenna or cable
system is connected to the
product, be sure the antenna or cable system
is grounded so as to provide some protection
against
voltage
surges
and built-up
static
charges. Article 810 of the National Electrical
Code ANSI/NFPA
70, provides
information
with regard to proper grounding of the mast
an 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. See Figure 131.1.
FIGURE 131.1
EXAMPLE
OF ANTENNA
GROUNDING
AS PER
NATIONAL
ELECTRICAL
CODE
ANTENNA
__
oRou.D . -.-.
CLAMP
DISCHARGE
UNIT
_°'_°
_
_
GROUNDINGCONOUOTOR_
L
ESI%I_IV/_NT
_
/
_
_C
SECTION
810-21)
_
POWER
SERVICE
GROUNDING
--
_
ELECTRODE
SYSTEM
NEC-NATIONAL
ELECTRICAL
CODE
(NEC ART 250 PART H)
$2898A
14.
15.
16.
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.
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 instaling
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.
Overloading-Do
not overload wall outlets and
extension cords as this can result in a risk of
tire or electric shock.
17.
18.
19.
20.
21.
22.
23.
Object and Liquid
Entry-Never push objects
of any kind into this product through openings
as they may touch dangerous voltage points
or short-out parts that could result in a fire or
electric shock. Never spill liquid of any kind on
the product.
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.
Damage
Requiring
Service-Unplug
this
product
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.
b. If liquid has been spilled, or objects have
fallen into the product.
c. If the product has been exposed to rain or
water.
d. If the product does not operate normally by
following the operating instructions. Adjust
only those controls that are covered by the
operating
instructions
as an 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.
e. If the product has been dropped or the
cabinet has been damaged.
f. When
the product
exhibits
a distinct
change in performance-this
indicates a
need for service.
Replacement
Parts-When replacement parts
are required, be sure the service technician
has used replacement parts specified by the
manufacturer
or have the same charact-
eristics as the original part. Unauthorized
substitutions may result in fire, electric shock,
or other hazards.
Safety
Check-Upon
completion
of any
service
or repairs
to this product,
ask the
service technician to perform safety checks to
determine
that the
product
is in proper
operating condition.
Wall
or Ceiling
Mounting-The
product
should be mounted to a wall or ceiling only as
recommended by the manufacturer.
Heat-Theproduct should be situated away
from heat sources
such as radiators,
heat
registers, stoves, or other products (including
amplifiers) that produce heat.
-4-
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