23.WARNING:Topreventinjury,thisapparatusmustbesecurelyattachedtothefloor/wallinaccordancewiththe
installationinstructions.
24.Toreducetheriskofelectricshock,thegroundingofcenterpinofplugmustbemaintained.
25.Ifanoutsideantennaorcablesystemisconnectedto theTV,besuretheantennaorcablesystemisgroundedtoprovide
someprotectionagainstvoltagesurgesandbuilt-upstaticcharges.Section810oftheNationalElectricalCode,
ANSI/NFPANO.70,providesinformationwithrespectto propergroundingofthemastandsupportingstructure,
groudingofthelead-inwireto anantennadischargeunit,sizeofgroundingconductors,locationofantennadischarge
unit,connectiontogroundingelectrodes,andrequirementsforthegroundingelectrodes.(SeeDiagramFigureA.)
ANTENNA
LEAD IN
WIRE
GROUND CLAMP
ANTENNA
DISCHARGE UNIT
(NEC SECTION 810-20)
ELECTRIC SERVICE
EQUIPMENT
GROUNDING CONDUCTORS
(NEC SECTION 810-21)
GROUND CLAMPS
POWER SERVICE GROUNDING
ELECTRODE SYSTEM
(NEC ART 250, PARTH)
Diagram Figure A
iii
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