March Issue 2009


With a residential market in search of a pulse, finding opportunities is daunting at...

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| March 2009
Starting around age 40, a person’s ability to see gradually diminishes. Statistics estimate one of the 78 million U.S. baby boomers turns 60 every seven seconds.

| March 2009
This is the second of two articles that provides a glimpse of the significant changes to NFPA 70E—2009. The first appears in the January 2009 issue.

| March 2009
Article 210 Branch Circuits; Article 230 Services; Article 250 Grounding and Bonding; Article 366 Auxiliary Gutters; Article 422 Appliances; Article 517 Health Care Facilitie

| March 2009
“It is undisputed that virtually all of the drawings and specifications … contained substantial errors, conflicts and discrepancies, which rendered them unusable for the cons

| March 2009
Dartmouth engineering professor and entrepreneur Victor Petrenko—along with his colleagues at Dartmouth and at Ice Engineering, LLC in Lebanon, N.H.—have invented a way to che