Bedienungsanleitung Sanyo DWM450 (Seite 4 von 38) (Englisch)

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15. Outdoor Antenna Grounding – If an outside antenna or

cable system is connected to the product, be sure the an-

tenna 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. See

Figure 2.

EXAMPLE OF ANTENNA GROUNDING AS PER NATIONAL ELEC-

TRICAL CODE, ANSI/NFPA 70

16. 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.

17. Overloading – Do not overload wall outlets, extension

cords, or integral convenience receptacles as this can result

in a risk of fire or electric shock.

18. Object and Liquid Entry – Never push objects of any

kind into this product through 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.

19. Servicing – Do not attempt to service this product your-

self as opening or removing covers may expose you to dan-

gerous voltage or other hazards. Refer all servicing to quali-

fied service personnel.

20. Damage Requiring Service – Unplug this product from

the wall outlet and refer servicing to qualified service person-

nel under the following conditions:

a. When the power-supply cord or plug is damaged.

b. If liquid has been spilled, or objects have fallen into

the product.

c. If the product has been exposed to rain or water.

d. 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 to its normal operation.

e. If the product has been dropped or damaged in any

way.

f. When the product exhibits a distinct change in perfor-

mance – this indicates a need for service.

21. Replacement Parts – When replacement parts are

required, be sure the service technician has used replace-

ment parts specified by the manufacturer or have the same

characteristics as the original part. Unauthorized substitutions

may result in fire, electric shock, or other hazards.

22. Safety Check – Upon completion of any service or re-

pairs to this product, ask the service technician to perform

safety checks to determine that the product is in proper oper-

ating condition.

23. Heat – The product should be situated away from heat

sources such as radiators, heat registers, stoves, or other

products (including amplifiers) that produce heat.

This appliance shall not be exposed to drippling or splashing

water and that no object filled with liquid such as vases shall

be placed on the apparatus.

-E3-

GROUND

CLAMP

ELECTRIC

SERVICE

EQUIPMENT

ANTENNA

LEAD IN

WIRE

ANTENNA

DISCHARGE UNIT

(NEC SECTION 810-20)

GROUNDING CONDUCTORS

(NEC SECTION 810-21)

GROUND CLAMPS

POWER SERVICE GROUNDING

ELECTRODE SYSTEM

(NEC ART 250, PART H)

NEC – NATIONAL ELECTRICAL CODE

S2898A

(Figure 2)

DWM-450-US - English 3/16/05, 3:58 PM4

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