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.Know More
Consumer or small commercial lines are often encased in different gauges of conduit before being buried at a depth of 24 inches. Electrical lines may be buried at other depths as well. For example, some projects use a depth of 6 inches when the line is encased in half-inch gauge metal conduit with waterproof conductors.
Direct-bury underground feeder (UF-B) line can be buried at a depth of 12 inches if it meets certain criteria. It must have GFCI protection before it is buried and the line being buried is limited to 120 volts and must use no higher than a 20-amp fuse or breaker.
THWN-2 conductors inside PVC must be buried at a depth of 18 inches, while UF-B line must be buried at 24 inches or deeper.Learn More
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.Full Answer >
The Nile River has an average depth of 26 to 36 feet. It can change significantly during periods of flood. In ancient times, the waters of the Nile rose and flooded the surrounding plains. The construction of the Aswan dam has largely ended this natural inundation.Full Answer >
Wiring a double light switch is a simple job that the average homeowner can do. However, it's important to use extreme caution when working with electricity. The required materials are a voltage tester, screwdriver, electrical tape, wire cutter, wire stripper and grounding wrist strap.Full Answer >
The first step of building a TENS unit is printing a diagram and labeling any alterations you wish to make to its parts. Gather all necessary tools and materials, including the soldering iron. Measure all parts, and cut out the appropriate holes for muscle wires, switches and LED. Assemble and connect all parts using your diagram, and insert the full unit into the case.Full Answer >