Current-carrying parts and other parts, the corrosion of which might result in a hazard, shall be resistant to corrosion under normal conditions of use.Compliance is checked by verifying that, after the tests of Clause 15, the relevant parts show no sign of corrosion. Stainless steel and similar corrosion-resistant alloys and plated steel are considered to be satisfactory for the purpose of this requirement.NOTE Examples of causes of corrosion are the incompatibility of materials and effects of heating.