Painting for hazard static electricity (IIC)

[Fran67]

Hello everybody,
I'm searching for documentation about the requirements of dissipativ painting for steel baseplates and steel deck covering in hazardous area (especially the IIC Zone) , to avoid the risk of static electricity build-up and discharge:
- Can the static electrity really build-up on the painted surface of baseplates and deck covers, even if these materials are in steel and grounded? I think there is rules on painting thickness for IIC zone (~200 microns) -> if this criteria is respected, is a dissipativ painting required (is it applicable to steel supports, baseplates...etc?)
- Do you have some documentation (norms, eégulations) about this subject to transmit? By reading the IEC-60079 and NFPA-77 I don't find any requirements about dissipativ painting for supports, cover plates, baseplates...etc when not in contact with electrical device.
Thank you if you could help me
FF

 

[IRstuff]

That depends on what you are trying to achieve. You seemingly have a requirement to reduce any induced static voltages to less than 30V, don't you? Paints are insulators and static charge prone, and their dielectric strengths will not dissipate a 30V surface charge.

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