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Monday, June 26, 2017

Monthly Archives: November 2005

Neither Sleet nor Snow nor Rain nor the Dark of Night…

Well, not exactly. Yes, all of those things will usually keep a system uses sunlight for fuel. However, these and other weather conditions also...

Bonding Metal Piping Systems

Article 250 of theNational Electrical Codeprovides the minimum requirements for grounding and bonding. The title of the article was revised in the 2005 NEC...

Residential Electrical System Aging Research Project

Concern has been expressed in the electrical community regarding the aging of electrical systems in residential occupancies, possibly resulting in fires. A question not yet...

The Challenge to Having Global Codes and Standards

Abstract There has been an increasing emphasis in recent decades to achieve international codes and standards for electrical installations and products. Although the bene-fits of...

What Does the Falling Dollar Mean to You?

As contractors, you like to see the prices of things fall. Whenever the price of copper goes down, electrical contractors are able to bid...

The Prime Directive

What do you think when someone asks, "Have you seen a good electrical inspector?” Do you reply that you see one in the mirror...

Basic Electricity, Part 9

Phasors It is time to bite the bullet. Before we can continue into three-phase electrical circuits and calculations, we have to have a solid understanding...

CEC/NEC – Some Significant Differences

CEC Rule 14-100(d) permits the secondary conductors supplied by a high voltage power transformer to be protected by the transformer’s primary overcurrent protection (with...

Fire Pumps Application and Installation Requirements

The CE Code, Part I governs installation of various electrical equipment. A fire pump is certainly also covered by the Code requirements. But in...

Water-damaged electrical equipment

In the home In the wake of this year’s disastrous hurricane season, the International Association of Electrical Inspectors (IAEI) and Underwriters Laboratories Inc. (UL) are...
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