NEC
(National
Electrical
Code)
Standards
A
Note
for
the
Cable
Television
(CATV)
Installer
This
reminder
is
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.
Antenna
Grounding
Outside
the
House
If
an
outside
antenna
is
connected
to
the
receiver,
be
sure
the
antenna
system
is
grounded
so
as
to
provide
some
protection
against
voltage
surges
and
built
‐
up
static
charges.
Article
810
of
the
National
Electrical
Code,
ANSI/NFPA
70,
provides
information
with
regard
to
proper
grounding
of
the
lead
‐
in
wire
to
an
antenna
‐
discharge
unit,
connection
to
grounding
electrodes,
and
requirements
for
the
grounding
electrode.
Always
observe
proper
antenna
or
satellite
dish
grounding
techniques.
When
lightning
strikes
there
is
always
the
possibility
that
your
antenna
or
dish
(mounted
high
on
the
roof)
can
become
a
conduit
for
lightning
and
electrically
damage
any
equipment
to
which
it’s
connected.
Additionally,
proper
grounding
offers
safety
to
the
people
using
the
audio/video
system
in
the
event
of
an
electrical
problem.
7
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