TERRACAP grounding system
The TERRACAP TCB040-V2 capacitive ground monitoring system identifies a low-resistance connection using the connected ground clamp. If a connection is identified, the device discharges electrostatic charges safely via a resistor, which prevents a discharge spark from forming. The control unit then checks the capacitance detected at the clamp. If the capacitance for the tanker truck is correct, a green display lights up and the interlocking relay enables the pumping process. The device then forms a low-resistance connection to ground, which prevents further build-up of electrostatic charges.
The connection is continuously monitored during pumping using the connected ground clamp.If the connection is interrupted, the unit switches to the RED state for “no connection” and the pumping operation is stopped immediately using the locking relay.