[TowerTalk] Re: Tower Safety Equipment

[K8RI on Tower Talk]

> Supposing that what is described as "wire rope" is actually "aircraft 
> cable"? Does that support higher loads?

Probably not.
Aircraft cable is going to be Stainless Steel and made to a set of 
specifications.  Some is plastic covered and some is not.

Other than that, it's "expensive" wire rope.


Roger Halstead (K8RI, EN73 & ARRL Life Member)
N833R, World's Oldest Debonair (S# CD-2)
www.rogerhalstead.com
>
> Alan NV8A
>
>
> On 01/03/05 06:46 pm Phil Camera tossed the following ingredients into the 
> ever-growing pot of cybersoup:
>
>> And, if I may make my regularly scheduled transmission of safety 
>> information concerning fall protection.
>> One poster mentioned that he only used a rope lanyard rather than a shock 
>> absorbing lanyard, which is to be attached to the D Ring on the back of 
>> your full body harness.  When the average 300 lb. individual falls, if 
>> the fall is abruptly stopped like when using a non shock absorbing 
>> lanyard, the force exerted on the body and harness is about 5000 lbs. 
>> That's enough to tear you up.  Using a shock absorbing lanyard, the 
>> forces are mitigated down to about 500 lbs.  When that is applied to a 
>> properly fitting full body harness, those loads are transferred to the 
>> strongest bones in the body, your hips.
>>
>> The poster from below mentions the safety cable, which is a good idea 
>> except it must also be designed properly.  OSHA dictates that all fall 
>> protection attachment points be capable of withstanding a 5000 lb. load. 
>> 3/8 wire rope has a working load limit of less than 3000 lbs.  Also, the 
>> attachment up top must be very robust.  Inquiring minds may want to know. 
>> Be safe, Phil  KB9CRY
>
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