The test adapter is designed to measure and test electrical devices and extension cables with CEE plug devices in conjunction with test devices in accordance with the following regulation: DIN VDE 0701-0702 (test after repair and repeat tests). 
 The adapter can be used to test the following sizes in conjunction with test devices intended for these tests: 
-  on electrical devices: - protective conductor resistance - insulation resistance (measurement L1 / L2 / L3 and N short-circuited to PE) - substitute leakage current 
-  on extension cables: - protective conductor resistance - insulation resistance (measurement L1 / L2 / L3 and N short-circuited to PE) - function test on single and three-phase extension cables for wire continuity, short circuit and reverse polarity (clockwise rotating field) - simply via insulation resistance measurement using a rotary switch