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Sharp LC37HV4U Manual

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5
IMPORTANT SAFETY PRECAUTIONS
• Outdoor Antenna Grounding — If an outside antenna is connected to the television equipment, be sure the antenna
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 and supporting structure, grounding of the lead-in wire to an antenna discharge unit, size of grounding
conductors, Iocation of antenna-discharge unit, connection to grounding electrodes, and requirements for the
grounding electrode.
EXAMPLE OF ANTENNA GROUNDING AS PER
NATIONAL ELECTRICAL CODE, ANSI/NFPA 70
ANTENNA
LEAD IN
WIRE
ANTENNA
DISCHARGE UNIT
(NEC SECTION 810-20)
GROUNDING CONDUCTORS
(NEC SECTION 810-21)
GROUND CLAMPS
POWER SERVICE GROUNDING
ELECTRODE SYSTEM
(NEC ART 250, PART H)
GROUND
CLAMP
ELECTRIC
SERVICE
EQUIPMENT
NEC —NATIONAL ELECTRICAL CODE
• Lighting — For added protection for this television equipment 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. This will prevent damage to the
equipment 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 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.
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