[TowerTalk] Why not thicker Stainless cable?
tuvaorbust at hotmail.com
Wed Mar 17 05:58:15 EST 2004
Bill Coleman Wrote:
>Although stainless is more corrosion-resistant than galvanized cable, the
>alloy isn't as strong as other steel. A stainless cable would have to be
>larger in diameter to have the same holding strength.
Bill Coleman, AA4LR, PP-ASEL Mail: aa4lr at arrl.net
It seems from some past stories that the high strength steel cables, can
become dangerously weakened without being overtly detectible, sometimes with
disasterous results...broken cable, destroyed towers, antennas, etc...I
think the recommendation was to replace the high strength crank up cable
every 2 years, independent of visual inspections, in order to be truly safe.
If the stainless steel cable was suitably matched to the load, it woud be
thicker, which seems OK...
Just make it thicker, and use larger pulleys and you may have a vastly
longer lived cable, that won't die from corrosive weakening. Are there
other negatives to Stainless Steel? (Besides Cost, HI)
Maybe it fatigues from bending...it must be an expense issue...
73, de Pat, AA6EG
aa6eg at hotmail.com
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