patep023
12-06-2015, 03:16 PM
Hi all,
I'm from University of Leicester Racing from the UK 2016. I’ve got a query regarding the below rule:
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EV3.3.1 - If the container is made from an electrically conductive material, then 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. All conductive surfaces on the outside of the container must have a low-resistance connection to the GLV system ground, see EV4.3. Special care must be taken to ensure that conductive penetrations, such as mounting hardware, are adequately protected against puncturing the insulating barrier.
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According to EV3.3.1 no conductive material can pass the insulation barrier inside the accumulator container. However for our container design it is necessary to pass metallic bolts through the container and the firewall to mount our battery holders and segment dividers which breaks the insulation barrier. Our plan is to electrically insulate the fasteners using heat shrink or equivalent to cover them completely. Would doing so comply with the rule as we are able to maintain a complete electrical insulation barrier.
Thanks
Parthil
I'm from University of Leicester Racing from the UK 2016. I’ve got a query regarding the below rule:
_______
EV3.3.1 - If the container is made from an electrically conductive material, then 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. All conductive surfaces on the outside of the container must have a low-resistance connection to the GLV system ground, see EV4.3. Special care must be taken to ensure that conductive penetrations, such as mounting hardware, are adequately protected against puncturing the insulating barrier.
_______
According to EV3.3.1 no conductive material can pass the insulation barrier inside the accumulator container. However for our container design it is necessary to pass metallic bolts through the container and the firewall to mount our battery holders and segment dividers which breaks the insulation barrier. Our plan is to electrically insulate the fasteners using heat shrink or equivalent to cover them completely. Would doing so comply with the rule as we are able to maintain a complete electrical insulation barrier.
Thanks
Parthil