Unobtainium.Steel PARs or aluminum?
If you're going to worry about the bolts being undertightened, you need a better crew.
The point of a saftey cable is to be a last resort, if you are truly worried that any part might fail you shouldn't send it up.
But at each failure point there should be a saftey which means that each of the pars should be cabled around the bar and around the truss/batton, this way the pipe has a saftey and each par does as well
Most cable has a tie every few feet, several connections, and a pick, all of those are saftey points which is the redundancy i'm talking about, if you run cable on truss and through span-sett that is another saftey on the cable. which is several redundancies, and sure the lens tube is held in with a small bolt but that bolt is hardly holding any weight where as the c-clamp and or yolk bolt are holding all the weight of the light, having a redundancy around the bulk of the weight makes sense a lens tube not so much. also to strengthen my 6 argument if you have two on the par bar and the bar itself fails in a way that the saftey would catch it the par could slide out unless if it is run through the bar. where as 6 through the yolks would catch any par and the bar itself which is a double redundant safteyYou know -- the lens tube of a Source Four is only held in by a small-diameter, finger-tightened belt. Why not put a safety on that -- it's just as likely to fail if not moreso than a yoke bolt?
What about cable runs -- cables are held up on electrics by tieline. A shoelace knot in tieline is far more likely to fail than a bolt. Why not put safeties on cable runs too?
-Devil's Advocate
You know -- the lens tube of a Source Four is only held in by a small-diameter, finger-tightened belt. Why not put a safety on that -- it's just as likely to fail if not moreso than a yoke bolt?
What about cable runs -- cables are held up on electrics by tieline. A shoelace knot in tieline is far more likely to fail than a bolt. Why not put safeties on cable runs too?
-Devil's Advocate
And what's catching the couple pound chunk of c-clamp falling if that fails?
What's the rating for gaffers tape?Just a thought - would there be anything wrong with gaffing one side of the safety cable to the upper portion of the c-clamp? ...
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