Banebots RS-775 Case Short

[JB987]

Originally Posted by Mike Betts

Jack, et al,

There is not a motor in the world which will pass that criteria.

Most of us spec out motors to a specific criteria form a recognized approval agengy (such as UL) called a Dielectric Withstand Test. The parameters for such a test would be that the device withstand a voltage (such as 2 times the rated maximum voltage plus 1000V) with less than a specified current (such as 1 mA) for a specified time (such as at least 60 seconds).

But we aren't buying UL listed motors, are we? We are using motors that are factory seconds or discontinued items that have been donated (or sold at a deep discount) to FIRST.

I'm not defending Banebots. This case shorting issue is not acceptable. However, you get what you pay for.

BTW, please check with your electrical lead mentor before attempting a DWT as you need specific test equipment and the test degrades the insulation being tested.

JMHO,

Mike

I realize you get what you pay for. The problem is we really have no choice when FIRST limits the brand/model and number of motors and the brand with the most choices has such poor quality product. We don't mind paying more for better product...just wish we had the choice to do so.