ELECTRIC
SERVICE
EQUIPMENT
NEC - NATIONAL ELECTRICAL CODE
$2898A
1984, provides information with respect to proper ground- ing 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 ground- ing electrode. (Fig. A)
14.Lightning-For added protection for this "IV 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 TV due to lightning and power-line surges.
15.Power Lines-An outside antenna system should not be located in the vicinity of overhead power lines or other electric light of 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 touch-
ing such power lines or circuits as contact with them might be fatal.
16.Overloading-Do not overload wall outlets and extension cords as this can result in a risk of fire or electric shock.
17.Object and Liquid Entry-Never push objects of any kind into this TV through openings as they may touch dangerous voltage points or shortout parts that could result in a fire or electric shock. Never spill liquid of any kind on the TV.
18.Servicing-Do not attempt to service this TV yourself as opening or removing covers may expose you to dangerous voltage or other hazards. Refer all servicing to qualified service personnel.
19.Damage Requiring Service-Unplug this TV from the wall outlet and refer servicing to qualified service personnel under the following conditions:
GROUNDING CONDUCTORS (NEC SECTION810-21)
GROUND CLAMPS
---,,_1-_-- POWER SERVICE GROUNDING ELECTRODE SYSTEM
(NEC ART 250, PART H)
a. When the power-supply cord or plug is damaged or frayed,
b.If liquid has been spilled, or objects have fallen into the TV.
c.If the TV has been exposed to rain or water.
d.If the "IV does not operate normally by following the oper- ating instructions. Adjust only those controls that are cov- ered by the operating instructions as improper adjustment of other controls may result in damage and will often require extensive work by a qualified technician to restore the TV to its normal operation.
e.If the TV has been dropped or the cabinet has been damaged,
f.When the TV exhibits a distinct change in performance-thisindicates a need for service,
20.Replacement Parts-When replacement parts are required, be sure the service technician has used replacement parts specified by the manufacturer that have the same charac- teristics as the original part. Unauthorized substitutions
may result in fire, electric shock, injury to persons or other hazards.
21.Safety Check-Upon completion of any service or repairs to this TV, ask the service technician to perform routine safety
checks to determine that the "IV is in proper operating condition.
