1) Function: for detecting the high voltage continuity of covering on enameled wire with diameter from 0.05 to 1.60mm；

2) Comply with the latest IEC, GB, JIS and NEMA standards；

3) Optional test voltage: 350V, 500V, 750V, 1000V, 1500V, 2000V, 2500V and 3000V；

4) The length of test sample can be chosen arbitrarily from 0 ~ 99m , and the complete the test process is automatic；

5) Error of the test voltage: less than 5%;

6) Steady-state short-circuit current: 25 ± 5 μA;

7) Counting frequency of bare wire: 500 ±25 times /min；

8) Voltage drop caused by 50mΩ defect resistance: less than 75%;

9) Response time of fault counter circuit: 5±1ms.