Electrical

A:

A Christmas light fixer is a tool for repairing Christmas decoration lights that won't light up. It is a dedicated tool that features a voltage detector, fuse and bulb testers, bulb remover and a shunt repairer. This tool is available in different designs and colors to suit customers' needs.

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  • What is a double tap in an electrical panel?

    Q: What is a double tap in an electrical panel?

    A: According to the Star Tribune, a double tap occurs when two conductors are connected under one screw inside a panelboard. Most circuit breakers do not support double tapping, although some manufacturers, such as like Cutler Hammer, make hardware specially designed for this purpose.
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  • How do you wire a three-pin plug?

    Q: How do you wire a three-pin plug?

    A: The first step in wiring a three-pin plug is to bare the ends of the three wires inside the electrical cord for about ? centimeter by cutting away the plastic insulation, then remove the plug cover. Insert the twisted copper wires into the holes in the pins, ensuring the green and yellow wires go into the top pin, while the blue and brown wires go into the left pin and right pin respectively, then replace the plug cover.
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  • What are the disadvantages of coaxial cable?

    Q: What are the disadvantages of coaxial cable?

    A: From a consumer standpoint, the weakest point of coaxial cable is its vulnerability to signal quality loss during use. Factors that determine the magnitude of the signal loss include the length of the cable, wear on the wire and exposure to sources of electromagnetic interference from other electronic devices.
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  • How deep should electrical lines be buried?

    Q: How deep should electrical lines be buried?

    A: Consumer and small commercial electrical lines must be buried between 6 and 24 inches underground, while large commercial and industrial lines must be buried between 30 and 36 feet underground. Electrical lines for carrying current to a home or building must be buried deep enough to avoid digging accidents by homeowners and others.
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  • How do you install a fluorescent light fixture?

    Q: How do you install a fluorescent light fixture?

    A: Fluorescent light fixtures are produced for both hard ceiling and drop ceiling installations. Installation techniques are different for each type. These instructions focus on installation of fluorescent light fixtures in regular ceilings, with attachment to the framework by wood screws. The process is likely to take an afternoon.
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  • What color are positive and negative wires?

    Q: What color are positive and negative wires?

    A: The color of wires is dependent on the method of wiring and where one is located. In the United States, a common two-wire ungrounded circuit has a red positive wire and a black negative wire.
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  • Is it safe to plug one power strip into another?

    Q: Is it safe to plug one power strip into another?

    A: It is not safe to plug one power strip into another. This is called piggybacking or daisy chaining, and it creates an electrical fire hazard that could prove to be catastrophic.
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  • What is the function of a fuse?

    Q: What is the function of a fuse?

    A: A fuse prevents an electrical object from receiving too much current. In the event too much electricity is received by an electrical component, the fuse is designed to melt and separate.
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  • How do you install a solar power system for the whole house?

    Q: How do you install a solar power system for the whole house?

    A: Estimate the amount of solar panels needed to satisfy the electrical power usage of your home by dividing your average daily energy use by the amount of solar resource available to your region and multiplying that number to adjust it for the efficiency of your panel. Gather your utility bills, and by using a computer, it takes about 30 minutes to calculate the amount of solar panels you need.
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  • What are some techniques for basic electrical wiring and splicing?

    Q: What are some techniques for basic electrical wiring and splicing?

    A: The first step in basic electrical wiring or splicing is to turn off the power to the area in which work is being completed. To ensure safety, it is also important to use a junction box when adding new wires or splicing existing wires.
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  • Do you need to be an electrician to wire things?

    Q: Do you need to be an electrician to wire things?

    A: Not all jurisdictions require a person to hold a license to perform electrical work, according to the Copper Development Association. Therefore, a non-electrician could potentially perform wiring for another person. A homeowner is typically able to complete minor wiring installations and repairs in a home with necessary permits and inspections.
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  • Where is solar energy being used?

    Q: Where is solar energy being used?

    A: While solar energy is used worldwide and even in space, the country with the most installed solar capacity is Germany. According to the European Photovoltaic Industry Association, Germany had approximately 35 GW of installed solar capacity by the end of 2013, almost double its closest competitor. China, Italy, Japan and the United States round out the top five countries with installed solar capacity.
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  • How can one wire a home light switch?

    Q: How can one wire a home light switch?

    A: In order to wire a home light switch you need wire cutters and wire nuts. Start by turning off the power from the circuit breaker, then remove the switch plate, strip and connect the wires and place the new switch in the box.
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  • What is a Christmas light fixer?

    Q: What is a Christmas light fixer?

    A: A Christmas light fixer is a tool for repairing Christmas decoration lights that won't light up. It is a dedicated tool that features a voltage detector, fuse and bulb testers, bulb remover and a shunt repairer. This tool is available in different designs and colors to suit customers' needs.
    See Full Answer
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  • Why do light bulbs explode?

    Q: Why do light bulbs explode?

    A: Exposure to moisture or cold can cause a light bulb to explode. Failure of a light bulb may also be the result of tight screwing or too much electrical flow.
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  • Q: What are some parts of an electrician contract?

    A: An electrical contract includes scope of services, payment schedule, time of completion, permits and liability insurance. For large projects, an electrical contract may include sections on order changes and location of construction documents. Electrical contracts also include a space at the top for contractor and client information and project address, and at the bottom for signatures and a notary seal.
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  • Q: How do you wire a 220-volt outlet?

    A: To install a 220-volt outlet, obtain the necessary permits, turn off the power, run a new cable from the sub-panel, cut a hole for the new outlet and attach the cable's wires to the new outlet. Hire a licensed electrician to make the connection at the breaker box.
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  • Q: What are some tips for saving energy in your home?

    A: To save energy in the home, install a programmable thermostat, let dishes air dry, turn off appliances and lights, use power strips, let clothes air dry, take shorter showers, fill the dishwasher or washing machine before running a cycle and use energy saving products. People can also make good use of blinds and shades and set electronics to automatically hibernate, according to the U.S. Department of Energy.
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  • Q: How many watts can be run on a 15-amp fuse?

    A: A 15-amp fuse can handle no more than 1,800 watts of power. Anything over that will cause the breaker to trip.
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  • Q: What are some commonly used electrical math formulas?

    A: Ohm's law, expressed as the formula written as V = IR, is the most commonly used mathematical formula in electrical work. The electrical power formula, written as P = VI, is another frequently used electrical math formula.
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  • Q: Is it safe to replace a 20-amp breaker with a 30-amp breaker?

    A: A 30-amp breaker in a slot wired for a 20-amp breaker could result in the overheating of the wire, switches or other components, which could ignite a fire. A replacement breaker should be the same size breaker as the circuit was originally designed for.
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