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Important Safeguards
7.Wall or Ceiling Mounting – The appliance should be mounted to a wall or ceiling only as recommended by the manufacturer.
8.Ventilation – The appliance should be situated so that its location or position does not interfere with its proper ventilation. For example, the appliance should not be situated on a bed, sofa, rug, or similar surface that may block the ventilation openings; or if placed in a
9.Heat – The appliance should be situated away from heat sources such as radiators, heat registers, stoves, or other appliances (including amplifiers) that produce heat.
10.Power Sources – The appliance should be connected to a power supply only of the type described in the operating instructions or as marked on the appliance.
11.Polarization – If the appliance is provided with a polarized plug having one blade wider than the other, please read the following information: The polarization of the plug is a safety feature. The polarized plug will only fit the outlet one way. If the plug does not fit fully into the outlet, try reversing it. If there is still trouble, the user should seek the services of a qualified electrician. Under no circumstances should the user attempt to defeat the polarization of the plug.
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13.Cleaning – The appliance should be cleaned only as recommended by the manufacturer.
14.Power Lines – An outdoor antenna should be located away from power lines.
15.Nonuse Periods – The power cord of the appliance should be unplugged from the outlet when left unused for a long period of time.
16.Object and Liquid Entry – Care should be taken so that objects do not fall and liquids are not spilled into the enclosure through openings.
17. Damage Requiring Service – The appliance |
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should be serviced by qualified service |
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personnel when: |
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A. The |
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been damaged; or |
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B. Objects have fallen, or liquid has been |
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spilled into the appliance; or |
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C. The appliance has been exposed to rain; |
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or |
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D. The appliance does not appear to operate |
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normally or exhibits a marked change in |
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performance; or |
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E. The appliance has been dropped, or the |
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enclosure damaged. |
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18. Servicing – The user should not attempt to |
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service the appliance beyond that described |
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in the operating instructions. All other |
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servicing should be referred to qualified |
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surges and built up static charges. Article 810 |
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service personnel. |
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19. Outdoor Antenna Grounding – If an |
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outside antenna is connected to the receiver, |
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be sure the antenna system is grounded so |
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as to provide some protection against voltage |
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of the National Electrical Code, ANSI/NFPA 70, |
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provides information with regard to proper |
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grounding of the mast and supporting |
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structure, grounding of the |
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conductors, location of |
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FIGURE 1: |
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unit, connection to grounding electrodes, and |
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requirements for the grounding electrode. See |
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Figure 1. |
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EXAMPLE OF ANTENNA GROUNDING AS PER |
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NATIONAL ELECTRICAL CODE |
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| ANTENNA |
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| Other | |||
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CLAMP |
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| LEAD IN |
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| WIRE |
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GROUND |
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| ANTENNA |
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| DISCHARGE UNIT |
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| (NEC SECTION 810- | 20) |
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ELECTRIC |
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SERVICE |
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EQUIPMENT |
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| GROUNDING CONDUCTORS |
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| (NEC SECTION |
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| GROUND CLAMPS |
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| POWER SERVICE GROUNDING |
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| ELECTRODE SYSTEM |
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| (NEC ART 250, PART H) |
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NEC – NATIONAL ELECTRICAL CODE | 3 | ||||||||||
S2898A | |||||||||||
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