3
EXAMPLE OF ANTENNA GROUNDING AS PER THE NATIONAL ELECTRICAL CODE
13. LIGHTNING
To protect your unit 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 unit due to lightning and power line
surges.
14. 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.
15. OVERLOADING
Do not overload wall outlets and extension cords as this can result in a risk of fire or electric shock.
16. OBJECT AND LIQUID ENTRY
Do not push objects through any openings in this unit, as they may touch dangerous voltage points or short out parts that could
result in fire or electric shock. Never spill or spray any type of liquid into the unit.
17. OUTDOOR ANTENNA GROUNDING
If an outside antenna or cable system is connected to the unit, be sure the antenna or cable system is grounded to provide
some protection against voltage surges and built-up static charges, Section 810 of the National Electrical Code, ANSI/NFPA
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 elec-
trodes, and requirements for the grounding electrode.
18. SERVICING
Do not attempt to service this unit 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 unit 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 unit.
c . If the unit has been exposed to rain or water.
d. If the unit does not operate normally by following the operating instructions. Adjust only those controls that are covered by
the operating instructions, as an improper adjustment of other controls may result in damage and will often require
extensive work by a qualified technician to restore the unit to its normal operation.
e. If the unit has been dropped or the cabinet has been damaged.
f . When the unit exhibits a distinct change in performance, this indicates a need for service.
20. REPLACEMENT PARTS
When replacement parts are required, be sure the service technician uses replacement parts specified by the manufacturer or
those that have the same characteristics as the original part.
Unauthorized substitutions may result in fire, electric shock or other hazards.
21. SAFETY CHECK
Upon completion of any service or repairs to this unit, ask the service technician to perform safety checks to determine that the
unit is in proper operating condition.
22. HEAT
The product should be situated away from heat sources such as radiators, heat registers, stoves, or other products (including
amplifiers) that produce heat.
23. NOTE TO CATV SYSTEM INSTALLER
This reminder is provided to call the CATV system installer's attention to Article 820-40 of the NEC that provides guidelines for
proper grounding and, in particular, specifies that the cable ground shall be connected to the grounding system of the building,
as close to the point of cable entry as practical.
GROUND CLAMP
ELECTRIC
SERVICE
EQUIPMENT
ANTENNA LEAD IN WIRE
ANTENNA DISCHARGE UNIT (NEC
SECTION 810-20)
GROUNDING CONDUCTORS (NEC SECTION
810-21)
POWER SERVICE GROUNDING ELECTRODE
SYSTEM (NEC ART 250, PART H)
NEC-NATIONAL ELECTRICAL CODE
GROUND CLAMPS
S2898A
