313 put-io~i~
-. i/
ELt!M U! p83l ‘WU8$U~ ---
%I>-,
GI'ound
clamp--#-~JI'
Antenna discharge unit
---(NEC
Section
810-20)
--------..:::::::::
I~,L--Grounding
conductors
Electric service
h-+-r"---'(NEC
Section
810-21)
equipment--t>II'f/,Q'
Ground clamps
",-Power
service grounding
electrode system
(NEC
ART
250, Part
1-1)
Antenna
grounding
Example of antenna grounding
as
per National Electrical
Code, ANSIINFPA 70.
Note
to
CATV
system
installer
This reminder
is
provided to call the
CATV
system
installer's attention to Article 820-40
of
the
NEC
(of
USA)
that provides guidelines for proper grounding.
In
particu-
lar,
it specifies that the cable ground shall be connected
to
the grounding system
of
the building,
as
close
to
the
point
of
cable entry
as
is
practical.
18.
Use
proper
power
sOtm~es
~
Plug the product into
a proper power source, as described
in
the operating
instructions
or
as marked on the product.
19.
Avoid
power
lines
- Use extreme care when
installing an outside antenna system
to
keep from
touching power lines
or
circuits, as
conta<;;:t
with
them may be fatal. Do
not
install external antennas
near overhead power lines
or
other electric light
or
power circuits, nor where an antenna can fall into
such circuits
or
power lines.
20.
Ground
all
outdoor
ardermas
- If an external
antenna
or
cable system is connected
to
this
product, be sure the antenna
or
cable system is
grounded. This will provide some protection against
voltage surges and built-up static charges.
Section 810
of
the National Electrical CodeANSII
NFPA No. 70 provides information with respect
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 forthe
ground electrode. Refer
to
the antenna grounding
illustration on this page.
©2001 Bose Corporation,
The Mountain, Framingham, MA
01701 -9168 USA
255805 AM
Rev.OO
JN10494
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