Filter
Top Products
Outdoor Antenna Grounding
Lightning
Power Lines
Overloading
Object and Liquid Entry
Servicing
Damage Requiring Service
Replacement Parts
Safety Check
Heat
- If an outside antenna or cable system is connected to the
product, be sure the antenna or cable system is grounded so as to provide some protection
against voltage surges and built-up static charges. Article
810 of the National Electrical Code, ANSI/NFPA 70,
provides information with regard 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 grounding electrode.(Figure 131.1)
- For added protection for this product
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 product due
to lightning and power-line surges.
- 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.
- Do not overload wall outlets, extension cords or integral convenience receptacles
as this can result in a risk of fire or electric shook.
- Never push objects of any kind into this product though openings as
they may touch dangerous voltage points or short-out parts that could result in a fire or electric
shock, Never spill liquid of any kind on the product.
- Do not attempt to service this product yourself as opening or removing covers may
expose you to dangerous voltage or other hazards. Refer all servicing to qualified service
personnel.
- Unplug this product from the wall outlet and refer servicing to
qualified service personnel under the following conditions:
when the power-supply cord or plug is damaged,
If liquid has been spilled, or objets to have fallen into the product,
If the product has been exposed to rain or water,
If the product does not operate normally by following the operating instructions. Adjust only those
controls that are covered by the operating instructions as an improper adjustment of other
controls may result in damage and will often require extensive work by a qualified technician to
restore the product its normal operation.
If the product has been dropped or damaged in any way, and
when the product exhibits a distinct change in performance-this indicates a need for service.
- When replacement parts are required, be sure the service technician has
used replacement parts specified by the manufacturer or have the same characteristic as the
original part. Unauthorized substitutions may result in fire, electric shook, or other hazards.
- Upon completion of any service or repairs to this product, ask the service
technician to perform safety checks to determine that the product is in proper operating condition.
- The product should be situated away from heat sources such as radiators, heat registers,
stoves, or other products (including amplifiers) that produce heat.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
a)
b)
c)
d)
e)
f)
3
FIGURE1
EXAMPLEOFANTENNAGROUNDING
ASPERNATIONAL
ELECTRICALCODE
ANTENNA
LEADIN
WERE
ANTENNA
DISCHARGEUNIT
(NECSECTION810-20)
GROUNDINGCONDUCTORS
(NECSECTION810-21)
GROUNDCLAMPS
POWERSERVICEGROUNDING
ELECTRODESYSTEM
(NECART250.PARTH)
ELECTRONIC
SERVICE
EQUIPMENT
GROUND
CLAMP
Figure 131.1