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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 and supporting structure, 

grounding of the lead-in wire to an antenna discharge unit, connection to grounding 
electrodes, and requirements for the grounding electrode.

 

 

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. Do not disconnect the antenna or the power cord during 
a heavy storm lighting may strike while you are holding the cable cord, causing serious 
injury; turn off your LCD TV and wait for the weather to improve.

 

 

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. 
 

 

 

Antenna

 

 

 

Ground clamp

 

 

Electric service equipment

 

 

Antenna discharge unit

 

 

 

Ground clamps

 

 

 
 

Grounding conductors

 

Power service grounding electrode system

 

 

ViewSonic                                              N3290w/N4290p/N4790p 

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