Discharge rod, also known as: telescopic high-voltage discharge rods, high-voltage discharge rods. High-voltage discharge rod is the use of new insulation materials from processing. It has to elongate, but also the characteristics of contraction. Portable telescopic high-voltage discharge rod to facilitate the use of the outdoor high-voltage test, especially in the DC voltage withstand test, the test product on the accumulation of charge, discharge to the ground to ensure personal safety. Telescopic high-voltage discharge rods easy to carry, convenient and flexible, with small size, light weight, safety.