Richard,
According to ABYC code:
00 cable with 105 degree C insulation temperature
- in an engine space 162 amps
- outside engine space max 30 degrees C ambient temperature: 182 amps
000 cable with 105 degree C insulation rating
- in an engine space 187 amps
- outside an engine space max 30 degrees C ambient temperature : 237 amps
0000 cable with 105 degree C insulation rating
- in an engine space 209 amps
- outside an engine space max 30 degrees C : 266 amps
As a general rule of thumb we are even more conservative, recommending 100 amps on a 2/0 cable.
What is very important to consider is the crimp, and the contact area of the lug, to avoid hot spots.
James
On Mar 13, 2011, at 3:53 PM, Richard Mair wrote:
Just wondering what wire sizes people are using to set up the series connections on the batteries and connect them to the motor..
48 volt system with a max draw of 100 amps. Most times I expect to be in the 20 amp range from the anticipated figures
Thanks Richard
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