Do battery frames require "wedges" at the ends?

[jejaram]

Hi

Someone mentioned to me that in seismic activity prone areas, battery banks should have a type of "wedge" (sorry if this is not the right word in English) between the first and the last batteries and their corresponding sides of the frame to prevent that in case of an earthquake, the batteries could move and cause a short circuit.

Is this true? If so, is there a code, standard, whatever that recommends installing the "wedges"?

 

[IRstuff]

Storage batteries have either some sort of gel electrolyte or lead-acid and their cases are pretty much always non-conductive.

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[3DDave]

I think more detail on how the problem is expected to occur and what components or parts of components are expected to be involved.

If the terminals are uncovered I can see where a poorly designed frame could make contact. As to what feature might prevent that contact, I would need a picture of the installation to make a better question.

 

[IRstuff]

Seismic design would require a number of other restraints, such that your "wedges" would likely not be necessary. Even in automobiles, there are usually restraints that prevent the battery from moving, i.e., from becoming a projectile, in case of a crash. Likewise, if your seismic conditions are such that the batteries could move, they likely ought to be restrained, much like water heaters, if for no other reason than to prevent spillage of toxic, or dangerous, chemicals.

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[stevenal]

IEEE 484.

 

[jejaram]

Hi

Thanks for your answers. Thank you stevenal, I found what I was looking for at IEEE 484 as you suggested.

In case anyone is interested, my question was about a battery bank that is the energy backup for the auxiliary equipment at a thermoelectrical plant, that if got disconnected, well you know what could happen.

The name for what I called wedges is spacers and they are simple styrofoam "chunks".

 

[Palletjack]

Look into something like this.

https://www.exponentialpower.com/pr...-spill-containment/seismic-battery-racks.html

It contains the batteries should you have an earthquake.
I would worry about any movement that would tend to break the posts off top should you have an earthquake.