On 04/15/20 15:16 PM, jimlux wrote:
For a few dollars, safety wires seem to me to be a good value
insurance, but YMMV for risk taking.
Absolutely. I was only gently correcting the common notion that
turnbuckle safety wires are to keep a tower from falling if the
turnbuckle *breaks*.
Which it (the safety wire) certainly will NOT do unless it's installed
way differently than is common practice.
For that, I've seen a short cable with crimped loops on the end, or a
big loop, that's connected "in parallel" with the turnbuckle (not
through the turnbuckle eyes, but through the loops that mate with the
turnbuckle eyes. I can't say that it would save anything, but maybe it
would. You've got all the "small radius bend" problems.
It might be purely a psychological crutch.
Yes, it would take a safety loop using the same termination methods as
the guy wire itself. Eyes (with 3 cable clamps each) at each end of the
the loop, hooked together with a shackle, or something like that. At
least then the "safety wire" would have a chance at surviving the shock
load of a turnbuckle failure.
The normal way of having the wire wound thru the TB with the 2 ends
connected together in parallel with a single clamp, which is how it's
generally done in the commercial world, is obviously meant for other
purposes.
-Steve K8LX
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