Megger EST 50 High Voltage Discharge Rod

When conducting dielectric tests in cables or fault location measurements with high DC voltages, the cable capacitance is charged and represents a dangerous amount of energy. Hence, after a measurement, the cable under test must be subject to a damped discharge and a direct, visible earthing.

In its tip with which the live conductor is touched the SebaKMT EST 50 discharge rod features a discharge resistor which limits the discharge current and ensures a damped discharge. Within a split second, most of the charge of the cable has flown off a post-charging effect is thus eliminated. The discharge rods are made of GFK (fibre-glass strengthened plastic). They are equipped with a handle and conservatively rated clearance against physical contact with high voltage.

The SebaKMT discharge rods are designed only for discharge of high voltage cables within the framework of cable tests. After use, a cooling period of 30 minutes should be allowed in order to avoid a thermal overload of the built-in discharge resistors.