General Equipment and subassemblies shall be rated for the electrical an environmental installation location of the component inside or outside the turbine. Internal turbine environmental conditions may include exposure towater@ corrosive@non-corrosive liquids@ falling dust@ dirt@ and other debris that mightoccur . For WTs where oil films or leaks may be expected based on the normal operation or maintenance tasks@ enclosures@ including gaskets@ shall be suitably rated for ingress of the expected type and amount of oil.