The formation of zinc whiskers on the surface of zinc coated steel can be a costly oversight.
Zinc whiskers, as they are commonly know, are zinc particles that "grow" on the surface of zinc coated steel - commonly galvanised or electroplated steel. The pressure that is applied during the coating process causes zinc formations to push outwards on the coated steel over time. The "fuzz" that coats galvanised steel is what is referred to as zinc whiskers.
These small zinc particles accumulate and can get pulled into the electrical equipment causing short circuits and faults.
Avoid zinc whiskers altogether by choosing a stainless steel enclosure. As there is no zinc coating involved, there is no possibility of zinc whiskers.