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www.reference.com/article/safe-distance-power-lines-fdfff4bf4e29ac94

There is no one way to determine a safe distance from street power lines, but a good range is between 10 to 200 feet from the wires. For high voltage transmission lines with larger cables and tall towers, a safe distance is around 700 feet.

www.reference.com/article/safe-distance-working-around-power-lines-1f71c7e8343098af

The minimum distance when working on construction around power lines depends on the voltage of the power lines. The standard recommended distance is a 20-foot radius around the line, but the distance can range from 10 to over 45 feet depending on the voltage.

www.reference.com/article/definition-working-distance-1e1f3ee2fbd156f1

Working distance is a term used in microscopy to describe the distance between the specimen and the lens. Microscopes usually have a short working distance.

www.reference.com/article/can-straight-line-distance-between-two-cities-5de3d00c7327d869

Use the online distance calculator tool on DistanceCalculator.GlobeFeed.com, FreeMapTools.com or DistanceFromTo.net to find the straight-line distance between two cities. Other names for straight-line distance include flying or air distance.

www.reference.com/article/can-internet-over-power-lines-a237149df575b1ee

It is possible to get Internet via power lines in certain areas. As of 2014, the technology was being tested in select U.S. and UK cities.

www.reference.com/article/distance-three-point-line-basketball-f5f64f02f5c6f198

In basketball, the three-point line is at differing lengths depending on the age and level of competition. In the National Basketball Association, the three-point line is 22 feet when measuring from the center of the rim to the sides. The top of the arc is 23 feet 9 inc...

www.reference.com/article/red-balls-power-lines-e7c904532f80767e

The red balls attached to high-voltage transmission lines are aerial markers to increase the visibility of power lines for low-flying aircraft. These early warning devices reduce the risk of airplanes and helicopters colliding with thin power lines that are barely seen ...