Electrical

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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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  • 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 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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  • 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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  • 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 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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  • What is the function of a fuse?

    Q:What is the function of a fuse?

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    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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  • 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 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 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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  • 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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  • 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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  • 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.

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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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  • Q:How does an uninterruptible power supply work?

    A:

    Uninterruptible power supplies work by converting battery power to power that can be used by the computer system. A computer system plugs into the uninterruptible power supply, which then plugs into a wall outlet. If the power goes off or the voltage running to the computer system fluctuates, the uninterruptible power supply maintains a steady stream of acceptable power to the computer system.

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  • Q:What is a conductivity meter used for?

    A:

    A conductivity meter is used to measure the ability of a water-based solution to carry an electric current. It can also evaluate the salinity levels of surface water and soil samples, as well as measure pH.

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  • Q:How many amps can a 12-gauge wire hold?

    A:

    A 12-gauge wire can carry between 15 and 20 amps for normal electrical wires. When wiring chassis, 12-gauge wire can carry a maximum of 41 amps along the metal conductor. The conductive part of a 12-gauge wire is 0.0808 inch in diameter. This gauge is found in extension cords.

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  • Q:How do I cover a protruding outlet?

    A:

    Cover a protruding outlet with a deep cover for the specific type of outlet. If possible, consider buying a thinner outlet instead of covering the protruding one.

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  • What types of circuit breakers are produced by Square D?

    Q:What types of circuit breakers are produced by Square D?

    A:

    Square D offers 11 different categories of electrical circuit breakers and related products through Schneider Electric, including miniature, molded-case, mission-critical, universal-power, direct-current rated, thermal magnetic and medium-voltage circuit breakers. The company also makes enclosures, ground-fault protection products, motor-circuit protectors and supplementary protectors.

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  • Q:How do you add a 60 amp breaker in your main electric panel?

    A:

    Adding a new breaker to a home's main electrical panel is relatively easy even for someone with limited electrical experience. With just a flashlight and a screwdriver, you can easily add a 60 amp breaker to an electrical panel in 10 or 15 minutes.

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  • How many volts are in a wall outlet?

    Q:How many volts are in a wall outlet?

    A:

    In the United States, home wall outlets carry a voltage of 120 VAC, or voltage from alternating current. This is the standard amount, but some heavy-duty appliances require higher voltages.

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