March Issue 2009

 

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


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| 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
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
With distributed sources, there can be a mix of grid-connected and grid-independent sources. For example, take the combination of photovoltaic sources in this figure.

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| 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

| March 2009
A security system's alarm control panel is similar to a central processing unit in a common computer system.

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