4
IMPORTANT SAFETY INSTRUCTIONS
14. 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 (U.S.A.), ANSI/ NFPA 70
provides information with regard 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.
15. Lightning
For added protection for this product (receiver) 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.
16. 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.
17. Overloading
Do not overload wall outlets and extension cords as this
can result in a risk of fire or electric shock.
18. 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.
19. 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.
20. Damage Requiring Service
Unplug this product from the wall outlet and refer
servicing to qualified service personnel under the
following conditions:
a. If 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. If the product exhibits a distinct change in
performance.
21. Replacement Parts
When replacement parts are required, be sure the
service technician has used replacement parts specified
by the manufacturer or have the same characteristics as
the original part. Unauthorized substitutions may result in
fire, electric shock, or other hazards.
22. 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.
23. Wall or Ceiling Mounting
The product should be mounted to a wall or ceiling only
as recommended by the manufacturer.
24. Heat
The product should be situated away from heat sources
such as radiators, heat registers, stoves, or other
products (including amplifiers) that produce heat.
Antenna Lead in Wire
Antenna Discharge Unit
(NEC Section 810-20)
Grounding Conductor
(NEC Section 810-21)
Ground Clamps
Power Service Grounding
Electrode System (NEC
Art 250, Part H)
Ground Clamp
Electric Service
Equipment
Example of Grounding According to National Electrical
Code Instructions
(Continued from previous page)
NEC- National Electrical Code
Содержание C27F33
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