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Unread 11-03-2009, 08:51
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Al Skierkiewicz Al Skierkiewicz is offline
Broadcast Eng/Chief Robot Inspector
AKA: Big Al WFFA 2005
FRC #0111 (WildStang)
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Re: possible solution to the static problem

Quote:
Originally Posted by writchie View Post
Apparently a beaded brass drag chain is not prohibited:

We will be installing a drag chain based on this ruling. It appears to be the only pro-active static mitigation method permitted on the field (other than dealing with van de graff generators on the Robots).

Chain has the advantage of guaranteed contact with the floor and the disadvantage that a corroded link could cause a high resistance in the discharge path.
The regolith is also nonconductive. I would put it's voltage standoff rating in the tens of Kv range or better. Maybe I am missing something here, but I don't see how a drag chain could have any additional effect. When you use a drag chain over concrete, the material is conductive to some extent and likewise for carpet depending on the humidity and moisture content of the materials. The regolith is adverse to moisture absoption so it's electrical properties should not change over a weekend.
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Al
WB9UVJ
www.wildstang.org
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Storming the Tower since 1996.