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13. Power-Cord
Protection
Power-supply
cords should be routed
so
that they are not likely to be walked
on or
pinched
by items placed upon or against
them, paying
particular
attention
to cords
at plugs, convenience
receptacles,
and the
point where they exit from the product.
14. Outdoor
Antenna
Grounding
If an outside
antenna
or cable system
is
connected
to the product,
be sure the
antenna
or cable system is grounded
so as
to provide
some protection
against
voltage
surges
and built-up
static
charges.
Article
810 of the National
Electrical
Code, ANSUNFPA
70, provides
informa-
tion with regard
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
electrodes,
and requirements
for the grounding
electrode.
EXAMPLE OF ANTENNA GROUNDING
'
'_--_ANTENNA
-
----_k
I
LEAD IN WIRE
.,/_"_,_'11
_k_ /ANTENNA
,/
"F_
_
DISCHARGE
UNIT
I
EOU_PMENT--._ I _
/ /'-. J
GROUNDING
__
CONDUCTORS
"-_'_'POWER
SERVICE
GROUNDING
ELECTRODE
SYSTEM
NEC - NATIONAL
ELECTRICAL
CODE
(NEC ART 250, PART H)
15. Lightning
For added protection
for this product
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 product
due to lightning
and power-
line surges.
16.
17.
18.
19.
20.
Power Lines
An outside
antenna
system
should not be
located
in the vicinity
of overhead
power
lines or other electric
light or power
circuit.,s, or where it can fall into such
power lines or circuits
When installing
an out,Ade antenna
sy_tem,
extreme
care
should
be taken
to keep from touching
such power lines or circuits
as contact
with them might
be fatal.
Overloading
Do not overload
wal]i outlets,
extension
cords, and integral
co_:venience
recep-
tacles
as this can re,;ul t in a risk of fire or
electric
shock.
Object and Liquid
Entry
Never push objects of any kind into this
product
through
openi ags as they may
touch dangerous
voltage
points or short-
out parts that could result
in a fire or
electric
shock. Never spill liquid of any
kind on the product.
Servicing
Do not attempt
to service
this product
yourself
as opening
or removing
covers
may expose you to dangerous
voltage
or
other l:,azards.
Refer all servicing
to
qualified
service
personnel.
Damage
Requiring
Service
Unplug this product
from the wall outlet
and refer servicing
to qualified
service
personnel
under
the following conditions:
(a) When the power-sapply
cord or plug
is damaged.
(b) If liquid has been spilled,
or objects
have fallen
into the product.
(c) If the product
has been exposed
to
rain or water.
(d) If the product
does not operate
no:rmally by following the operating
instructions.
Adiu:st only those
controls
that are c _vered by the
operating
instruct:ions
as an improper
adjustment
of other controls
may
result
in damage
_nd will often
require
extensive
work by a qualified
technician
to restore
the product
to
its normal
operation.
(e) If the product
has been dropped
or
damaged
in ony way.
(f) When the product
exhibits
a distinct
change
in performance
-- this indi-
cates a need for service.
3
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