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EN
EXAM PLE OF ANTENNA GROUNDING AS PER NATIONAL
ELECTRICAL CODE
POWER SERVICE GROUNDING
ELECTRODE SYSTEM
(NEC ART 250, PART H)
NEC – NATIONAL ELECTRICAL CODE
GROUNDING CONDUCTORS
(NEC SECTION 810-21)
ANTENNA
LEAD IN WIRE
ANTENNA
DISCHARGE UNIT
(NEC SECTION 810-20)
GROUND CLAM P
ELECTRIC
SERVICE
EQUIPM ENT
GROUND
CLAM PS
IM PORTANT SAFEGUARDS
Caution : Read this page carefully to ensure safe
operation.
13.Lightning – For added protection for this appliance during a
lightning storm, or w hen it is left unattended and unused for
long periods of tim e, unplug it from the w all outlet and
disconnect the antenna or cable system. This w ill prevent
dam age to the appliance due to lightning and pow er-line
surges.
14.Abnorm al sm ell – If an abnorm al sm ell or sm oke is
det ect ed, im m ediat ely t urn t he pow er OFF and unplug
the appliance from the w all outlet. Cont act your dealer or
nearest service cent er.
15.Dam age requiring service – The appliance should be
serviced by qualif ied service personnel w hen:
A. The pow er-supply cord or the plug has been dam aged.
B. Object s have f allen, or liquid has been spilled int o
t he appliance.
C. The appliance has been exposed t o rain or w at er.
D. The appliance does not appear t o operat e norm ally
by follow ing the instruction manual. Adjust only those controls
that are covered by the instruction manual as an improper
adjustment of other controls may result in damage and w ill
often require extensive w ork by a qualified technician to
restore the appliance to its normal operation.
E. The appliance has been dropped, or t he enclosure
dam aged.
F. The appliance exhibits a marked change in performance.
16.Servicing – The user should not at t em pt t o service t he
ap p lian ce b e yo n d t h at d e scrib e d in t h e in st ru ct io n
m anual. All ot her servicing should be ref erred t o qualif ied
service personnel.
17.Out door ant enna grounding – If an out side ant enna is
connect ed t o t he appliance, be sure t he ant enna syst em
is grounded so as t o provide som e prot ect ion against
volt age surges and built up st at ic charges. Art icle 810 of
t he Nat ional Elect rical Code ANSI/NFPA 70, provides
inf orm at ion w it h respect t o proper grounding of t he
m ast and support ing st ruct ure, grounding of t he lead-in
w ire t o an ant enna discharge unit , size of grounding
c o n d u c t o r s , l o c at i o n o f an t e n n a d i s c h ar g e u n i t ,
connect ion t o grounding elect rodes, and requirem ent s
f or t he grounding elect rode. See Figure.
18.Pow er lines – An outside antenna system should not be
located in the vicinity of overhead pow er lines or other electric
light or pow er circuits, or w here it can fall into such pow er lines
or circuits. When installing an outside antenna system, extreme
care should be taken to keep from touching such pow er lines
or circuits as contact w ith them might be fatal.
19.AC out let s – Do not connect ot her audio equipm ent
w it h a pow er consum pt ion larger t han t hat specif ied t o
t he AC out let on t he rear panel. Never connect ot her
elect rical appliances, such as an iron or t oast er, t o it t o
prevent f ire or elect ric shock.
20. Overloading – Do not overload w all outlets, extension cords,
or integral convenience receptacles as this can result in a risk
of fire or electric shock.
21. Attachment – Do not use attachments not recommended by
the appliance manufacturer as they may cause hazards.
22. Replacement parts – When replacement parts are required,
be sure the service technician has used replacement parts
specified by the manufacturer or have the same characteristics
as the original parts. Unauthorized substitutions may result in
fire, electric shock, or other hazards.
23. Safety check – Upon completion of any service or repairs to
this appliance, ask the service technician to perform safety
checks to determine that the appliance is in proper operating
condition.
Notes:
1. Item 3 is not required except for grounded or polarized equipment.
2. Item 17 and 18 are not required except for units provided w ith antenna
terminals.
3. Item 17 complies w ith UL in the U.S.A.
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