Today, “home theater ” implies a real “cinema experience” and therefore a higher quality set of components than the average television provides. A typical home theater includes the following parts:
Input Devices: One or more audio/video sources. High quality formats such as HD DVD or Blu-ray are preferred, though they often include a VHS player or Video Game Systems. Some home theatres now include a home theater PC to act as a library for video and music content.
Processing Devices: Input devices are processed by either a standalone AV receiver or a Preamplifier and Sound Processor for complex surround sound formats. The user selects the input at this point before it is forwarded to the output. Audio Output: Systems consist of at least 2 speakers, but can have up to 11 with additional subwoofer. Video Output: A large HDTV display. Options include Liquid crystal display television (LCD), video projector, plasma TV, rear-projection TV, or a traditional CRT TV.
Atmosphere: Comfortable seating and organization to improve the cinema feel. Higher end home theaters commonly also have sound insulation to prevent noise from escaping the room, and a specialized wall treatment to balance the sound within the room
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When working with electrical equipment wear rubber-soled shoes, avoid damp locations and hold all tools by their insulated handles. Never touch conductive surfaces such as pipes or metal bracing. Use a non-conductive fiberglass ladder when working with electricity. Avoid shorting electrical circuits.
Fuses and Circuit Breakers
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If a fuse blows or a circuit breaker is tripped, don’t just replace or reset it. Find out what caused the circuit to overload and correct the problem.
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Never replace a fuse or circuit breaker with one that exceeds the amperage rating for a given circuit.
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Avoid using several high-amperage appliances - such as irons or other heat-producing appliances - on the same circuit.
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Never replace a fuse with a penny or any other material that conducts electricity.
Appliances
- All household appliances should bear the label of an independent testing laboratory, indicating that they meet basic safety standards.
- Keep heat-producing appliances, such as electric space heaters, electric ranges, and irons at least three feet (one meter) away from furniture, curtains, bedding, or anything that will burn.
- Allow plenty of air space around televisions, computers, and stereos to prevent overheating.
- Keep electrical cords away from heat-producing appliances, such as toasters and coffee makers.
- Be sure that detachable appliance cords, such as those used with coffee makers, deep-fat fryers, and popcorn poppers are rated for the electrical-load requirements of the appliance
Electrical Outlets
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Have a professional electrician replace old or damaged outlets with modern, three-wired, polarized receptacles. Proper grounding is essential to minimize fire and shock hazards.
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Plugs should match outlets. Three-pronged plugs require three-wired receptacles or a properly grounded adapter. Polarized plugs (now standard), with one prong wider than the other, require polarized receptacles.
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Never cut off or bend the ground pin of a three-pronged plug. This ground connection protects you from severe shock caused by a faulty cord or malfunctioning appliance.
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Never alter the wide prong of a polarized plug to make it fit into an outdated outlet. Have the outlet replaced and properly grounded.
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Protect children from electrical shock by installing plastic safety inserts in unused outlets.
No-cost Tips for Saving Energy and Money
Contrary to popular opinion, you sometimes get more than you pay for. The following energy-saving tips won’t cost you a penny—but they can save you bucks on your energy bills.
Remember the Four R’s
Have you ever had a friend turn against you and become an enemy? It can really hurt. Electricity is a great friend, but it can hurt, too, if you don’t treat it with respect.
During May, observe National Electrical Safety Month by reminding everyone about the four R’s of electrical safety:
- Respect the power of electricity;
- Read and follow the operating instructions that come with every electrical product;
- Replace worn or frayed electrical cords; and
- Relocate appliance cords so they won’t get walked on and children can’t pull them.