Important Safeguards—Continued
18. | Object and Liquid |
| kind into the appliance through openings as they may |
| touch dangerous voltage points or |
| could result in a fire or electric shock. Never spill liquid |
| of any kind on the appliance. |
19. | |
| yourself as opening or removing covers may expose you |
| to dangerous voltage or other hazards. Refer all servic- |
| ing to qualified service personnel. |
20. | Damage Requiring |
| form the wall outlet and refer servicing to qualified ser- |
| vice personnel under the following conditions: |
| A. When the |
| B. If liquid has been spilled, or objects have fallen into |
FIGURE 1:
EXAMPLE OF ANTENNA GROUNDING AS PER NATIONAL ELECTRICAL CODE, ANSI/NFPA 70
ANTENNA
LEAD IN
WIRE
GROUND CLAMP
ANTENNA DISCHARGE UNIT (NEC SECTION
ELECTRIC
SERVICE
EQUIPMENT
GROUNDING CONDUCTORS (NEC SECTION
GROUND CLAMPS
POWER SERVICE GROUNDING
NEC – NATIONAL ELECTRICAL CODEELECTRODE SYSTEM
| the appliance, |
C. | If the appliance has been exposed to rain or water, |
D. If the appliance does not operate normally by follow- | |
| ing the operating instructions. Adjust only those con- |
| trols 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 appliance to its |
| normal operation, |
E. | If the appliance has been dropped or damaged in |
| any way, and |
F. | When the appliance exhibits a distinct change in |
| performance – this indicates a need for service. |
21. Replacement | |
required, be sure the service technician has used | |
replacement parts specified by the manufacturer or have | |
the same characteristics as the original part. Unautho- | |
rized substitutions may result in fire, electric shock, or | |
other hazards. | |
22. Safety | |
repairs to the appliance, ask the service technician to | |
perform safety checks to determine that the appliance is | |
in proper operation condition. | |
23. Wall or Ceiling | |
mounted to a wall or ceiling only as recommended by | |
the manufacturer. | |
24. | |
heat sources such as radiators, heat registers, stoves, or | |
other appliances (including amplifiers) that produce | |
heat. | |
25. Liquid | |
exposed to dripping or splashing and no objects filled | |
with liquids, such as vases should be placed on the | |
appliance. |
S2898A
(NEC ART 250, PART H)
3