Low-Cost Drives Can Be an Expensive Alternative
Sep 1, 2004, By Duane Smith, Fluke Corp.
The failure to give low-horsepower drives the same level of attention required by bigger models can be a costly mistake...
Dwelling Unit Feeder/Service Conductor Calculations
Aug 1, 2004, By Mike Holt, NEC Consultant
How do you size conductors for residential services and feeders?...
Fuel Cells on the Way to Commercialization
Aug 1, 2004,
Technological advances and economies of scale will eventually drive the cost of fuel cells down to a competitive level, according to a report....
Serves You Right
Aug 1, 2004, By Matthew Halverson, Managing Editor
With the help of a little business-savvy, residential service work can be a lucrative venture for the electrician who wants to go it alone...
IEEE to develop new standard for electrical power systems on marine ships
Jul 29, 2004,
Those with marine power system experience invited to help...
IEEE begins work on two battery standards
Jul 22, 2004,
New standards will help owners and maintenance personnel with battery systems...
Syska Hennessy Group designs new cooling system
Jul 19, 2004,
Systems made for high-density computer data centers...
Engineers Charging More for Their Services
Jul 1, 2004,
Architecture, engineering, and environmental consulting firms have increased their hourly billing rates an average of 16% over the past five years, according...
The Top 40 Electrical Design Firms
May 19, 2004, By Amy Florence Fischbach, Staff Writer
The nation’s largest engineering firms diversify their market segments to position themselves for the economic recovery ...
2004 Design Firms
May 1, 2004, By Amy Florence Fischbach, Staff Writer
American-based electrical design firms ventured into overseas markets and explored new business opportunities to stay competitive in a challenging economy....
Keeping Circuits Functional During Fires
May 1, 2004, By Robert Berhinig, P.E., Underwriters Laboratories
Understanding the difference between the fire test methods used to establish fire resistive ratings for electrical components is key to a good design...
Motor Calculations Part 2: Feeders
May 1, 2004, By Mike Holt, NEC Consultant
What’s the correct way to size motor feeders and related overcurrent protection?...
Motors, Motor Circuits, and Controllers, Oh My!
May 1, 2004, By Mike Holt, NEC Consultant
Don’t be intimidated by the largest chapter of the NEC...
Electrical Design for Research Facilities
May 1, 2004, By Troy Thrun, Sparling
Specialized power and lighting needs make this more than just the average office space, but a sound design can be a scientist’s ‘silent assistant’...
The Oft Misinterpreted Requirements of Stationary Battery Systems
Apr 1, 2004, By Stephen W. McCluer, American Power Conversion
With current codes behind the state of battery technologies, inspectors may apply obsolete rules or misapply them entirely...
Motor Calculations Part 1: Motors and Branch-Circuit Conductors
Apr 1, 2004, By Mike Holt, NEC Consultant
Overcurrent and short-circuit protection aren’t the same for motors...
A/E/C Firm Executives Anticipate Rise in Design/Build Work
Apr 1, 2004,
About 80% of architecture, engineering, construction, and integrated design/build firm leaders who responded to a recent survey expect an increase in the use of design/build over the next five years...
Minimizing AC Induction Motor Slip
Apr 1, 2004, By Mauri Peltola, ABB Drives and Motors
Although slip is a common problem with standard motors, several options exist for reducing its effects...
Flywheel Technology Helps Life Spring Eternal for Battery Systems
Apr 1, 2004, By Scott Richey, Active Power
Running a flywheel energy storage system in parallel with VRLA batteries can lengthen their service life and improve reliability...
IEEE-SA starts work on new standard
Mar 2, 2004,
Document covers harmonic limits on power systems...
