Screwless Terminals Thermal Stress Tester
IEC 60669.1, IEC 60884-1 2013 clause 12.3.11
This device is use to check whether the screwless terminals can withstand the electrical and thermal stresses occurring in normal use
Loading the screwless terminals for 1 h with an alternating current as specified in table 10 and connecting rigid solid conductors 1 m long having the nominal cross-sectional area as specified in the same table. Then measure the voltage drop.
- Test cycles: 192 cycles, current flow for 30min, no current flow for 30min;
- Power supply: AC220V 5A 50HZ;
- Test current: AC 1~99.9A±(3%±1A);
- Voltage drop measurement: 0~199.9±(3%±1mv)