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Control Panel in an Acidic Environment

We are looking at installing a 316L Control panel within an environment where Sulfuric Acid is handled extensively.


Where can I look to understand what special requirements are needed for this environment?

I understand that Hydrogen Sulphide turns Copper into Copper Sulphate - which has a significantly lower conductivity level;

To mitigate/slow down that reaction, tinning exposed copper is usually practiced - but I don't know what is required for Tri-rated cabling and components such as Contactors etc.


The control panel is only going to be open for maintenance purposes, so the internals aren't going to be subjected to much vapour, and any spills would be on the outside of the panel.

I have a feeling that as the components are protected by the panel, to IP54 minimum, that the corrosion would be at a slow enough rate to reasonably not have to worry about it when thinking about the life expectancy of the panel - but any advise and references would be appreciated.


Thanks
Parents
  • Thanks for the response.


    If mounting the contactors and power circuits in a clean area needs to be avoided (by request) would mounting them in a smaller Stainless Steel box, within the control panel, be sufficient? (Effectively making them sealed components)


    Assuming the construction of the smaller box is air tight, and access is maintained via glands?

    Would I need to go with ATEX glands for this, too?
Reply
  • Thanks for the response.


    If mounting the contactors and power circuits in a clean area needs to be avoided (by request) would mounting them in a smaller Stainless Steel box, within the control panel, be sufficient? (Effectively making them sealed components)


    Assuming the construction of the smaller box is air tight, and access is maintained via glands?

    Would I need to go with ATEX glands for this, too?
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