Fixture canopies QWhat is your opinion of sealing outside fixture wall-mounted fixtures? I have enforced this for years and was just recently challenged...More
Arecent study conducted by the Centers for Disease Control and Prevention's (CDC)'s National Institute for Occupational Safety and Health (NIOSH) has...More
Whether we like them or not, the codes and standards that govern human behavior tend to be good things that benefit most people. It's good, for instance,...More
With the explosion of growth in the voice data/video market, cabling contractors are finding themselves beating the bushes for qualified workers. Unfortunately,...More
Consumers take dependable electric power for granted in the United States. When they turn on a faucet, they expect a steady stream of clean water. They...More
Multimeter is designed for demanding users The 170 Series digital multimeters are designed specifically for front-line industrial, electrical and electronic...More
What's Wrong Here? January Winner Andrew ChiappettaAce Electric, Electrical ContractorsWhitehouse Station, N.J. The service weather head is mounted below...More
When someone purchases Cat. 5, 6 or 7 cable and connectors, why should they have to test these parts after installing them? Isn't it enough to just buy...More
Fiber mounting plate available in maximum density This mounting plate accommodates 12 MT-RJ dual-polarity adapters for maximum density. It fits onto the...More
Casey resigns from the IEC; Association looks for new executive ALEXANDRIA, Va. Dwight Casey has resigned from his position as executive vice president...More
ATLANTA,Ga. Many builders are now calling on electrical contractors to install structured wiring in custom homes and high-rise condos to network computers,...More
ACCUBID LAUNCHES VOICE/DATACOM DATABASE After two years, thousands of man-hours in development, consultation with numerous manufacturers and input from...More
Amazon.com Outlet www.amazon.com Amazon.com, the Internet's largest provider of books, music and videos, partnered with Tool Crib of the North a year...More
The HellermannTyton GigaBand system of structured cabling products is said to double the bandwidth of the proposed Cat. 6 standard (TIA/EIA-568B.2-1,...More
The dot-coms still standing look a little different than many of the companies that stood on their tiptoes vying for market attention last year. We have...More
Ken Smith, a maintenance and operations manager from the Kennewick, Wash. school district, sent me this photograph of a serious violation they discovered...More
In the emergency mode, upon loss of utility power, every available generator is started and independently synchronized to the bus. Looking at the electrical...More
If you're installing or maintaining technology wiring systems, you need to understand the Code rules that govern their installation, as well as the individuals...More
Omware Inc., Sebastopol, Calif., has just released a Solo Edition for small-office construction companies. Growing companies are no longer dependent solely...More
The emerging market for residential gateways will more than triple over the next five years, growing from 8.6 million units in 2001 to more than 33 million...More
Fixtures provide efficient security lighting The SE3 Series offers security lighting for walkways, entrances and in many other applications. Providing...More
Overcurrent devicesQ: I have a lighting panelboard rated 100A, 120/208V, 3-phase. I sized the feeder based on total continuous connected load, which is...More
We all know the National Electrical Code (NEC) was developed to protect persons and property from the risks associated with the use of electricity and...More
Because residential networks connect such precise and complicated machines as computers, the networks that connect them must be built to exact standards....More
LEDs have unique and compelling characteristics that make them ideal for industrial lighting applications. But there are a variety of misconceptions about LEDs, how well they work, how long they last, and more. Digital Lumens developed this whitepaper to dish up the facts around LEDs and address some common misunderstandings....More
An arc flash is associated with the explosive release of energy caused by an electrical arc, due to either a phase-to-ground or a phase-to-phase fault. This kind of fault can result from many factors – a dropped tool, accidental contact with electrical systems, buildup of conductive dust, corrosion or improper work conditions.....More
Abstract: In this webinar, Mike will not only explain the current NEC requirements for GFCIs and AFCIs, but he'll explain how they operate, what causes their premature failure, and when they won't provide the safety protection you might have thought they would.
Abstract: This webinar will teach attendees the difference between risk and hazard, and how the choice of system grounding has a direct impact on reliability and safety.
See side-by-side comparisons of different flame resistant fabrics exposed to flash fires, illustrating the extent, severity and location of burns....More
