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EXAMPLE OF ANTENNA GROUNDING AS PER THE
NATIONAL ELECTRICAL CODE
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.
For example :
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.
19. 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 parts. Unauthorized
substitutions may result in fire, electric shock or
other hazards.
20. 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.
21. HEAT
The product should be situated away from heat
sources such as radiators, heat registers, stoves, or
other products (including amplifiers) that produce heat.
22. 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.
IMPORTANT SAFEGUARDS
ANTENNA DISCHARGE UNIT
(NEC SECTION 810-20)
ANTENNA LEAD IN WIRE
GROUND CLAMP
ELECTRIC SERVICE
EQUIPMENT
GROUNDING CONDUCTORS
(NEC SECTION 810-21)
GROUND CLAMPS
POWER SERVICE GROUNDING
ELECTRODE SYSTEM
(NEC ART 250, PART H)
NEC-NATIONAL ELECTRICAL CODE
S2898A
4F22901A COV-07 11/5/2002, 3:104