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Electrical Contractor Magazine - Electrical Source - May/June 2010

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ARTICLES	PAGE
Coal is not a black and white issue - there are many shades of grey	4
University of Toronto cuts streetlight costs with LED retrofit	5
New CSA Standard protects workers in confined spaces	8
Confined spaces facts.......	10
Reducing Arc Flash through resistance grounding - Q&A	11
Right-sizing your power infrastructure - Part II	18
Windows 2000 extended support and security updates expire in 2010 - Part I	20
Advertisers Index	22