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Archives
Combating Light Pollution
Posted by Mike Ruff on in Engineering
Light trespass and light pollution are on the front burner of many municipalities in the U.S. due to the perception of wasted energy or impingement upon usage options of neighboring properties. There are new codified ordinances that restrict exterior light levels, pole heights, pole locations, lamp type/wattage, or watts/sq ft. The USGBC offers a Light […]
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Breakfast Club: Mega Press
Posted by Bob Schneider on in Uncategorized
Slide 1 Mega Press is a new offering from Viega. Slide 2 Viega is a method of joining piping, copper, stainless steel and plastics without solder or glue. Slide 3 It uses hydraulic force to compress the fitting to the pipe and uses an “O” ring to seal the joint. The contractor buys the crimper […]
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How to Avoid Grease on Rooftops
Posted by Mike Ruff on in Engineering
Grease on a roof can put you on a slippery slope toward leaks, expensive repairs, voided warranties, unsafe work areas, fire hazards, and lawsuits. Sometimes, it causes local fire authorities to fine building owners or tenants and shut them down. Chances are you have a food court or other food type tenants. Have you seen […]
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Electrical Engineering : What is Dirty Power?
Posted by Mike Ruff on in Engineering, Fundamentals
“Dirty power” is an abnormality in the power quality that is being delivered to a system. These abnormalities can include low power factor, voltage variations, frequency variations, and surges. All electrical systems are based on a supply of power at a certain voltage and frequency. Equipment and electronic devices are chosen based on this expected […]
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Electrical Engineering | Clearances for Pad-Mounted Transformers
Posted by Mike Ruff on in Engineering
Many buildings are located in developments, or on sites with underground electrical and tele/data/cable utilities. While the underground services eliminate unattractive overhead pole lines, cabling and transformers, the installation of utility company transformers presents challenges of a different sort. Utility company transformers are large, generally green in color, and can range from a small box […]
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