-transmission----------, Transmission lines |
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-transmission----------, Transmission lines |
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 Sep 10 2007, 04:04 AM
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Junior Member  Group: Full Member Posts: 7 Joined: 10-September 07 Member No.: 3,758  |
why copper conductor is not using in power transmission lines.
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Sep 10 2007, 06:20 AM
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#2
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Posting Freak Group: Moderator Posts: 2,097 Joined: 24-April 02 From: Christchurch, New Zealand Member No.: 1 |
Copper is used on some transmission lines. but Aluminium is cheaper than copper and so is often used in preference to aluminium cables.
Aluminium has a higher resistance than copper, so a larger cross section must be used than with copper. For large overhead lines, the cable has a steel core with aluminium conductors around the outside. This is because the aluminium would not support itself between the spans. Best regards, -------------------- Mark Empson administrator
Skype Contact = markempson | phone +64 274 363 067 LMPForum | LMP Tech Warehouse | L M Photonics Ltd | Empson family | Advanced Motor Control Ltd | LMP Software | Mark Empson Website |
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