We provide inspection and testing, electrical preventive testing, cable handover testing, electrical power test, electrical safety assessment, high-voltage power measurement system, calibration laboratory and other services.

● High and low voltage TOV device according to IEC61643.1 - 2011 and GB18802.1 - 2004, taking into account the GB18802 draft for approval, is mainly used for surge protectors (SPD), such as high and medium voltage system fault caused by transient overvoltage test (TOV) and low voltage system fault caused by temporary overvoltage (TOV), can also be used for other scientific research. (TOV) caused by faults in high and medium voltage systems and temporary overvoltage (TOV) caused by faults in low voltage systems, and can also be used for other scientific research tests. The facility can be switched to perform IEC61643.1:8.3.5.3.2 Failure simulation experiments. 

● High (medium) voltage TOV tester is used for transient overvoltage tests caused by high and medium voltage system faults, such as surge protection devices (SPDs), and can also be used for other scientific research tests.  Thermal stability tester is mainly used to test the thermal stability of low voltage SPDs, varistors and other lightning protection products, and can be used for production research and other purposes. It adopts regulator boosting mode, and increases the function of sudden voltage increase to meet the requirements of D/T1235.2 standard for high current thermal stability test. Applicable: Low-voltage SPD, can meet the industry standards of the Ministry of Industry and Information Technology.

● Short-circuit current power supply equipment outputs short-time AC high current, which is used to test the ability of products to withstand high current, as well as thermal effects, force effects and electrical properties, and also used for other research tests.

● AC/DC aging test system is specially designed for MOV aging and power dissipation test. It is equipped with air inlet, air outlet, heating furnace, high voltage power supply, current measurement unit, control system and measurement system. The system can automatically record the curve of current, temperature, power dissipation and other parameters with time.