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NAD 412 Manual

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EXAMPLZ
OP
ANTENNA
GROUNDING
I.$
PER
NATIONAL
ELECTRICAl.
CODE
11.
If
an
outside
antenna
is
connected
to
the
equipment,
be
sure
the
antenna
system
is
grounded
so
as
to
provide
some
protection
against
voltage
surges
and
built
up
static
charges.
Section
810
of
the
National
Electncal
Code,
ANSI/NFPA
No.
70
-1984
provides
information
with
respect
to
proper
grounding
of
the
mast
and
sup
porting
structure,
grounding
of
the
lead-in
wire
to
an
antenna
dis
charge
unit,
size
of
grounding
conductors,
location
of
antenna
dis
charge
unit,
connection
to
grounding
electrodes,
and
requirements
for
the
grounding
electrode.
a.
Use
NO.
10
AWG
(5.3
mm)
copper,
NO.8
AWG
(8.4
mm
2
)
aluminum
NO.
17
AWG
(1.0
mm
2
)
copper-clad
steel
or
bronze
wire,
or
larger,
as
a
ground
wire.
b.
Secure
antenna
lead-in
and
ground
wires
to
house
with
stand-off
insulators
spaced
from
4
feet
(1.22
m)
to
6
feet
(1.83
m)
apart
c.
Mount
antenna
discharge
unit
as
close
as
possible
to
where
lead-
in
enters
house.
d.
Use
jumper
wire
not
smaller
than
NO.
6
AWG
(1.33
mm2)
copper,
or
the
equivalent,
when
a
separate
antenna
grounding
electrode
is
used.
See
NEC
Section
810-21
(J)
12.
An
outside
antenna
system
should
not
be
located
near
overhead
power
lines
or
electric
light
or
power
circuits,
or
where
an
accident
may
allow
the
antenna
system
to
touch
power
lines
or
circuits.
When
installing
an
outside
antenna
system,
take
every
precaution
to
prevent
the
possibility
of
touching
a
power
line
or
circuits
as
such
contact
can
be
fatal.
13.
For
added
protection
before
and
during
a
lightning
storm,
or
when
equipment
is
to
be
left
unattended
and
not
used
for
a
long
period
of
time,
unplug
the
equipment
from
the
wall
outlel
and
disconnect
the
antenna.
This
will
prevent
damage
to
equipment
that
might
be
caused
by
power
line
surges
or
by
lightning
attracted
to
the
antenna.
14.
II
an
indoor
antenna
is
used
(either
built-into
the
set
or
installed
separately),
never
allow
any
part
of
the
antenna
to
touch
the
metal
parts
of
other
electrical
appliances
such
as
a
lamp,
TV
set,
etc.
15.
When
you
want
to
use
the
unit
with
a
cart
or
stand,
please
consult
with
your
sales
person
about
the
proper
cart
or
stand
recom
mended
by
the
manufacturer.
To
use
the
unit
on
an
unstable
cart
or
stand
may
result
in
an
injury
to
the
person,
damage
to
the
unit.
or
other
dangerous
conditions.
16.
Unplug
the
unit
from
the
wall
outlet
before
cleaning.
Never
use
benzine,
thinner
or
other
solvents
for
cleaning.
Use
only
a
soft
damp
cloth.
17.
Please
take
care
that
objects
will
not
fall
into
the
unit
and
liquids
are
not
spilled
through
the
openings
into
the
unit,
to
prevent
possible
shock
or
fire
hazard.
18.
Unplug
the
unit
from
the
wall
outlet,
and
refer
servicing
to
qualified
service
personnel
under
the
following
conditions.
a.
tithe
power
cord
or
plug
is
damaged.
b.
If
any
object
or
liquid
has
entered
the
equipment.
c.
lithe
unit
has
been
exposed
to
rain.
d.
Ii
the
unit
does
not
appear
to
operate
normally
or
exhibits
a
marked
change
in
performance.
a.
lithe
unit
has
been
dropped
or
the
case
damaged.
Do
not
attempt
to
service
the
equipment
except
as
described
In
the
owner’s
manual.
All
other
servicing
may
require
extensive
work
by
a
qualified
technician.
19.
Upon
completion
of
any
servicing
or
repairs,
request
the
service
shop’s
assurance
that
only
Factory
Authorized
Replacement
Parts
with
the
same
characteristics
as
the
original
parts
have
been
used,
and
that
routine
safety
checks
have
been
performed
to
guarantee
that
the
equipment
Is
In
safe
operating
condItion.
REPLACEMENT
WITH
UNAUTHORIZED
PARTS
MAY
RESULT
IN
FIRE.
ELECTRIC
SHOCK.
OR
OTHER
HAZARDS.
NC
-
‘L
[LLCTCA.
COOt
ioo..ii
… 18 …


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