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 Post subject: detecting hot trolley wire insulators
PostPosted: Wed Feb 23, 2011 11:39 am 
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Joined: Tue Dec 08, 2009 6:52 pm
Posts: 63
Location: Chicago IL
two reports about detecting hot trolley wire insulators second one says that in 1998 about fifty mine were using this system (both coal and heavy metal) I imagine its less now, dose anybody know about how many?

http://equipmenthealth.com/trolley_insulator.htm

http://www.cdc.gov/niosh/mining/pubs/pdfs/474.pdf

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