'Class II appliances and class II constructions shall be constructed and enclosed so that there is adequate protection against accidental contact with basic insulation and metal parts separated from live parts by basic insulation only.It shall only be possible to touch parts which are separated from live parts by double insulation or reinforced insulation.Compliance is checked by inspection and by applying test probes of EN 61032 in accordance with the conditions specified in 8.1.1.Test probe B and probe 18 of EN 61032 are applied to built-in appliances and fixed appliances only after installation.