Quote:
Originally Posted by Cory
By cooling the breaker you merely restore it to its rated current level. You don't get "bonus" current. You just aren't de-rating it due to it being hot (since it is a thermal switch).
By extension, you are against fans on motors?
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I am not against fans on motors. I am also not against cooling the breaker. Our team cooled off our breaker with canned air too. I don't think it's any more dangerous than a lot of the other stuff we do. By my interpretation, the breaker spray is illegal, but FIRST doesn't think it is illegal. I have no problem with spraying the breaker, so I am more than happy to go with FIRST's interpretation.
The fans on motors comment isn't a good comparison. Motors don't operate based off of heat like the breakers do and fans are specifically called out as being allowed. Fans also don't involve spraying a dangerous liquid chemical on electronics, and don't involve dangerously cold temperatures.