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sure the antenna or cable system is grounded so as to provide some protection against voltage surges and built-
up static charges. Section 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. See example below.
EXAMPLE OF ANTENNA GROUNDING
13 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 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
14 Cleaning -- Unplug this video product from the wall outlet before cleaning. Do not use liquid cleaners or
aerosol cleaners. Use a damp cloth for cleaning.
15 Object and Liquid Entry -- Never push objects of any kind into this video 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 video product.
16 Lightning -- For added protection for this video 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 video product due to lightning and power-line surges.
SERVICE
17 Servicing -- Do not attempt to service this video product yourself as opening or removing covers may expose
you to dangerous voltage or other hazards. Refer all servicing to qualified service personnel.
18 Conditions Requiring Service -- Unplug this video 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 video product.
c. If the video product has been exposed to rain or water.
d. If the video 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 video product to its normal