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|    shadowfiendzy@gmail.com to All    |
|    Re: Market analysis for ABC lines    |
|    25 Aug 14 21:01:25    |
      在 2001年5月24日星期四UTC+8下       8时20分09秒,Charles Perry写道:       > By ABC do you mean 4 conductors, 3 of which are partially insulated (not       > insulated for full voltage) and separated by insulating spacers? If so (we       > called in Hendrix cable where I worked ---a brand I think), we are fast       > replacing it all. I worked for a large US utility (7 states, 3 million+       > customers, 30,000+ MW of generation). The insulation on the cables cracks       > with age. You end up with corona at all of the spacers. Radio and       > television interference problems are common and attaching additional       > transformers is difficult. All this adds up to one thing, replacement. We       > went with armless construction when replacing ours.       >        > BTW, all of the hendrix we had was either 4 kV (very little) or 12.47 kV.       >        > Charles Perry P.E.       >        > "Michael Müller" |
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