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NOTES FOR FUTURE EDITOR:
Link to Annotated Rules Spreadsheet for EV.5.2
- As you're reading the rules, try to ask yourself what an engineering freshman would be thinking.
- What are some keywords you can pull out of the rule/subtext that you might be able to research further?
- What drawings/schematics/graphics can you show them to make it easier to understand?
- Try to make a few connections to our car or stuff in the google drive.
- If a rule seems self explanatory, try to ask yourself why they would need to include it?
- What safety reasons is it necessary for?
- What might happen if the rule weren't in place?
EV.5.2 Electrical Configuration
EV.5.2.1 All Tractive System components must be rated for the maximum Tractive System voltage
The Main Tractive System Components are made up of the:
-Accumulator:
-Grounded low Voltage( Low Voltage box above):
-Motor controller( Motor Controller Enclosure):
EV.3.3.2 -The maximum permitted voltage that may occur between any two points must not exceed 600 V DC
Note: Our Maximum Tractive System Voltage is 112V
EV.5.2.2 If the Accumulator Container is made from an electrically conductive material:
a. The poles of the Accumulator Segment(s) and/or cells must be isolated from the inner wall of the Accumulator Container with an insulating material that is rated for the maximum Tractive System voltage.
b. All conductive surfaces on the outside of the Accumulator Container must have a low resistance connection to the GLV System Ground, see EV.6.7
c. Any conductive penetrations, such as mounting hardware, must be protected against puncturing the insulating barrier.
EV.5.2.3 Each Accumulator Segment must be electrically insulated with suitable Nonflammable Material (F.1.18) (not air) for the two:
a. Between the segments in the container
b. On top of the segment
The intent is to prevent arc flashes caused by inter segment contact or by parts/tools accidentally falling into the container during maintenance for example.
EV.5.2.4 Soldering electrical connections in the high current path is prohibited
Soldering wires to cells for the voltage monitoring input of the AMS is allowed, these wires are not part of the high current path.
EV.5.2.5 Every wire used in an Accumulator Container, whether it is part of the GLV or Tractive System, must be rated to the maximum Tractive System voltage.
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