18.
Use proper power
sources-
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 contact 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
antennas-
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 Code ANSI/
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
for
the
ground electrode. Refer
to
the antenna grounding
illustration on this page.
llllllllllllllllll
255805
Antenna
grounding
Example
of
antenna grounding as per National Electrical
Code, ANSI/NFPA 70.
lfl<>---1--Antenna discharge unit
(NEC
Section
810-20)
}<r-,,L--Grounding
conductors
(NEC
Section
810-21)
;+---Power
service grounding
electrode system
(
NEC
ART
250,
Pa
rt
H)
Note
to
CATV
system
installer
This reminder is provided
to
call the
CATV
system
installer's attention
to
Article 820-40
of
the NEG (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.
BOSE
®
Better
sound
through research®
©2
007
Bo
se
Corporation,
The
Mountain,
Framingham,
MA
01701
-
9168
USA
2
55805
AM
Rev
.02
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