It was a dark and stormy night. As you’re lounging on your couch, relaxing from your workday, everything goes black. No lights, no television, and no margarita machine. Power outages occur from time to time in different spaces, but thanks to electric codes (and smart engineering) lighting can be restored and safety ensured in commercial […]
THE CONTROL OF LIGHTING AND BRANCH CIRCUIT LOADS, WHETHER FOR CODE COMPLIANCE, CONVENIENCE, OR LOAD OPERATION FUNCTIONS, IS TYPICALLY PROVIDED BY CONTACTORS, LOW VOLTAGE RELAY PANELS, OR SMART BREAKERS CONTACTORS Contactors are historically the most common type of control device. Contactors can be of the three pole type, with a high ampere rating and […]
Recently, we received a phone call from a maintenance staff member concerned about “dirt” building up around ceiling air diffusers in the common area of his mall. This is an interesting and common problem. The solution has two parts. Part One Engineers select diffusers with initial leaving air velocity and terminal velocity in mind. Careful […]
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 […]
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 […]