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fig-1
EXAMPLE OF ANTENNA GROUNDING AS
PER NATIONAL ELECTRICAL CODE
ANTENNA
LEAD IN WIRE
ANTENNA
DISCHARGE
UNIT (NEC
SECTION 810-20)
GROUNDING
CONDUCTORS
(NEC SECTION
810-21)
GROUNDING CLAMPS
POWER SERVICE
GROUNDING ELECTRODE
SYSTEM
(NEC ART 250. PART H)
NEC — NATIONAL ELECTRIC CODE
ELECTRIC
SERVICE
EQUIPMENT
GROUNDING
CLAMP
13. Lightning - For added protection of this
equipment during a lightning storm, or when
it is left unattended and unused for long
periods of time, disconnect it from the wall
outlet and disconnect the antenna. This will
prevent damage to the equipment due to
lightning and power-line surges.
14. Power Lines - An outside antenna system
should not be located in the vicinity of
overhead power lines or other electric light
or power circuits, or where it can fall into such
power lines or circuits. When installing an
outside antenna system, extreme care should
be taken to keep from touching such power
lines or circuits as contact with them might
be fatal.
15. Overloading - Do not overload wall outlets and
extension cords as this can result in a risk of
fire or electric shock.
16. Object and Liquid Entry - Never push objects
of any kind into this equipment through
openings as they may touch dangerous
voltage points or short out parts that could
result in a fire or electric shock. Be careful
not to spill liquid of any kind onto the
equipment.
17. Servicing - Do not attempt to service this
equipment yourself as opening or removing
covers may expose you to dangerous voltage
or other hazards. Refer all servicing to
qualified personnel.
18. Damage Requiring Service - Disconnect this
equipment from the wall outlet and all power
sources including batteries, and refer
servicing to qualified service personnel under
the following conditions.
a. When the power-supply cord or plug is
damaged.
b. If any liquid has been spilled onto, or
objects have fallen into, the equipment.
c. If the equipment has been exposed to rain
or water.
d. If the equipment does not operate normally
even if you follow the operating instructions.
Adjust only those controls that are covered
by the operation instructions. Improper
adjustment of other controls may result in
damage and will often require extensive
work by a qualified technician to restore
the equipment to its normal operation.
e. If the equipment has been dropped or the
cabinet has been damaged.
f. When the equipment exhibits a distinct
change in performance. This indicates a
need for service.
19. Replacement Parts - When replacement parts
are required, be sure the service technician
has used replacement parts that are specified
by Canon or that have the same
characteristics as the original part.
Unauthorized substitutions may result in fire,
electric shock or other hazards.
20. Safety Check - Upon completion of any
service or repairs to this equipment, ask the
service technician to perform safety checks
to determine that the equipment is in safe
operating order.
21. Do not install the equipment in the following
locations as this can cause a fire or electric
shock:
- Hot locations
- Close to a fire
- Very humid or dusty locations
a
Safe Use of Equipment
000-VBC50i-E-US 06.7.6, 11:30 AM13
13


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