View Single Post
Old 09-28-2014, 12:00 PM   #28 (permalink)
Astro
Dreamer
 
Join Date: Nov 2013
Location: Australia
Posts: 350
Thanks: 95
Thanked 214 Times in 151 Posts
Quote:
Originally Posted by thingstodo View Post
...
Watch out .. reading posts by paranoid people may be hazardous to your health .. paranoia is catching!
Too true.
I doubt i will use the second park brake idea, it was more appropriate when i originally thought i would only be able to afford a DC system.
But now i have the AC motor the emergency cut out button and inertia switch in the main contactor seems like it will be enough.

Somebody mentioned the pre-charge contactor circuit. I think i will put the emergency cut outs in the earth return that will be used by both the pre-charge and main contactor coils.
I don't think the pre-charge resistor would last long at full current and so wouldn't be a huge issue in a contactor fail on scenario. The pre-charge resistor would act like a fuse at full amps.
But best that both circuits are cut with the emergency cut outs in case of an electric shock scenario.
  Reply With Quote
The Following User Says Thank You to Astro For This Useful Post:
thingstodo (09-28-2014)