Current Issue - February 2010
Featured Story
Design Intervention
Located on Temple Square, the Salt Lake Tabernacle of the Church of Jesus Christ of Latter-day Saints (LDS) was built between 1864 and 1875. The aluminum-covered roof was constructed in an Ithiel Town lattice-truss arch system held together by dowels and wedges, as nails were scarce in Utah at the time. The building has a sandstone foundation, and 44 sandstone piers support the dome. The overall seating capacity of the building is 8,000, including the choir area and gallery. More
On The Job
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Renovation 2010
There are different types of lighting retrofit projects: fixture replacement, relocation, repair, ballast retrofit, clean and relamp only, and various other fixture-related tasks; some projects may not even involve working with existing lumminaires.… Read Now -
Liar, Liar?
Last month, we reviewed the lies in financial statements, which are both legal and ethical; this month, we move up to illegal and unethical actions.… Read Now -
It's a Small, Small World: Microgrids
Bringing power to the people could be more than just a 1960’s era goal for social change if promoters of localized electricity distribution systems—called “microgrids”—have their way.… Read Now
Codes and Standards
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Fine-Tuning the Code
A recent addition to the 2008 National Electrical Code (NEC) has prompted a possible change for the 2011 NEC and a number of questions from electricians, electrical contractors, electrical inspectors and electrical engineers.… Read Now -
Open for Business: NEC on Signs and Lighting Systems
An electrical contractor recently asked me about a municipality that inspected electrical signs and outline lighting systems at in-house manufacturing facilities.… Read Now -
Outlet Spacing, Parallel Conductors and More
If you have a Code-related problem or are experiencing difficulty in understanding a National Electrical Code (NEC) requirement and are wondering why or if such a requirement exists, ask Charlie.… Read Now
Features
Keep up the Green Work
Energy efficiency is a vital goal in creating truly sustainable buildings, and green certification programs popularly recognize many such structures.…Read Now
On the LAN
Premises cabling to support phones and PC networks hasn’t really changed much since it was first standardized by TIA-568 around 1990; It has just become faster, and Ethernet local-area networks (LANs) are now a thousand times faster.…Read Now
Integrated Systems
Alternative Opportunities
The production, transportation and consumption of alternative energy represent a burgeoning market for the electrical contracting industry. Read NowEncoding Fire Systems
Fire protection and security, including mass notification, access control and surveillance, are natural candidates for systems that should be converged. Read NowAge-Old Debate: Analog or Digital?
Digital control entails using digital communication architecture to network intelligent lighting control devices. Read Now
Industry News
The 21st Century 'Energy Highway'
The sixth annual Symposium on Energy in the 21st Century, hosted by Cazenovia College, will be held on Friday, April 16, 2010, at The Links at Erie Village in East Syracuse, N. Read NowDominion Virginia Power to Invest $4 Billion in Service Reliability
Dominion Virginia Power is spending $4 billion over three years to improve and expand its ability to provide reliable electric service to its customers. Read NowMarket Getting Smart About Grid Upgrades
In a classic case of the tail wagging the dog, upgrades to the nation’s electrical grid may be finally catching up to the technologies it has served. Read Now
Featured Products
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Vehicle Equipment
1 Fleet Tracker > AP GPS Systems’ APGPS Gold vehicle tracker uses a combination of GPS, GSM and GPRS technologies. Read Now
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Cool Tools: Fish Tapes
From a length of stiff wire pushed through a pipe to a precision instrument for running wire through conduit and many other confined, difficult-to-access spaces, the evolution of the fish tape illustrates how a relatively simple basic tools advance to meet changing needs. Read Now
Web Exclusives
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February Quiz With Correct Answers and Explanations
Connectors are key components in the performance of any voice, data and video (VDV) cable plant, either fiber or copper.… Read Now
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January Quiz With Correct Answers and Explanations
Much of the fiber used in premises applications for computer networks and closed-circuit security cameras is multimode fiber.… Read Now
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December Quiz With Correct Answers and Explanations
The problem when dealing with technology is that it is always changing.… Read Now




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