36
GO VIDEO REFERENCE GUIDE
13. OUTDOOR ANTENNA GROUNDING -
If an outside
antenna or cable system is connected to the video unit,
be sure the antenna or cable system is grounded to
provide some protection against voltage surges and
built-up static charges. Section 810 of the National
Electrical Code, ANSI/NFPA No. 70-1984, 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, connec-
tion to grounding electrodes, and requirements for the
grounding electrode. See figure on this page.
14. LIGHTNING -
For added protection of this video unit
during a lightning storm, or when it is left unattended
and unused for long periods of time, unplug it from the
wall outlet and disconnect the antenna or cable system.
This will prevent damage to the video unit due to
lightning and power line surges.
15. POWER LINES -
An outside antenna system should not
be located in the vicinity of overhead power lines or
other electric light or power circuits, 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.
16. OVERLOADING -
Do not overload wall outlets and
extension cords as this can result in the risk of fire or
electric shock.
17. OBJECTS AND LIQUIDS -
Never push objects of any
kind into this video unit through openings as they may
touch dangerous voltage points or short out parts that
could result in a fire or electric shock. Never spill
liquids of any kind onto the unit. Should spillage
occur, unplug unit and have it checked by a technician
before use.
▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲
GROUND
CLAMP
ELECTRIC
SERVICE
EQUIPMENT
GROUND
CLAMPS
ANTENNA
LEAD-IN
WIRE
ANTENNA
DISCHARGE
UNIT (NEC
SECTION 810-20)
GROUNDING CONDUCTORS
(NEC SECTION 810-21)
POWER SERVICE GROUNDING
ELECTRODE SYSTEM
(NEC ART 250, PART H)
NEC - NATIONAL ELECTRICAL CODE
