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Originally Posted by David Brinza

So sorry you wrestled with a 400 KOhm "short" for chassis isolation.

Chassis isolation criteria per R27 in 2015 is 10 kOhm. In previous years, the bar for chassis isolation was higher, so your inspector may not have been aware of the current spec.

Challenging the robot inspector's call was well within your rights and the Lead Robot Inspector should definitely have been consulted. The FRC inspection process is motivated by safety and fair play consideration. The intent is not to hinder teams from competing in top form.

We pointed the 10 kOhm rule but the inspector denied the validity in this case "until we found the source of the short". In hindsight we should have spoken with the lead inspector. I'm over it by now, but it was a shame that we lost 2 valuable hours of time the students could have spent practicing their driving on the field. In the end it was a different inspector who actually approved the chassis isolation check (we were completely open anyway, although I was never 100% certain on root cause)