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 otherelectric 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 ANSII
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.
111111111111111111
255805
Antenna
grounding
Example of antenna grounding as per National Electrical
Code, ANSI/NFPA
70.
1--<1>+----
Antenna
lead
in
wire
Ground c1amp--II--+J/' Antenna discharge
unit
1lI--t-
(NEC Section 810-20)
;-;"L--Grounding
conductors
(NEC Section 810-21)
Ground clamps
:--
Power
service
grounding
electrode system
(NEC ART 250, Part
H)
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.
©2007 Bose Corporation, The Mountain,
Framingham,
MA
01701-9168 USA
255805 AM Rev.03
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