G PHYSICS
G01 MEASURING; TESTING
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
G01R31/00 Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
G01R31/12 Testing dielectric strength or breakdown voltage; ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
G01R31/1227 of components, parts or materials
G01R31/1263 of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation