What is discharge rod calibration?
Discharge rod calibration ensures that these safety-critical instruments effectively dissipate residual electrical charge, protecting technicians working with high-voltage systems. Calibration verifies the integrity of discharge resistors and ensures the rods provide the necessary controlled discharge to prevent electrical hazards.
Why is calibration important for discharge rods?
Safe discharge rods are essential for electric utility workers handling high-voltage power lines. Regular calibration ensures:
- Proper damp discharge of residual voltage
- Compliance with electrical safety standards
- Reliable performance for technicians working on live-line systems
- Prevention of excessive discharge currents that could damage equipment
Failure to calibrate discharge rods may result in ineffective voltage dissipation, increasing safety risks for users and nearby personnel.
Does Calibrationhouse offer on-site calibration for discharge rods?
No, due to the high voltage required as a calibration standard, on-site calibration of discharge rods is not feasible. Calibrationhouse provides discharge rod calibration services exclusively from its Durham-based laboratory, where testing is conducted in a specialised high-voltage faraday test cage.
What expertise does Calibrationhouse have in discharge rod calibration?
Calibrationhouse has over 40 years of experience in the design, manufacture, and calibration of high-voltage testing equipment. The Seaward SDR series of discharge rods, suitable for voltages up to 35kV, are widely used in the electrical utility sector. Our laboratory’s specialised testing setup ensures accurate calibration to the highest standards.
How often should discharge rods be calibrated?
It is recommended that discharge rods are calibrated annually to maintain their accuracy and safety performance. Heavy-use equipment may require more frequent calibration checks, particularly in environments with high-voltage exposure.
How can I schedule calibration for my discharge rod?
To arrange calibration, contact Calibrationhouse via phone, email, or our online request form. Our team will guide you through the process and ensure a swift turnaround to minimise downtime for critical high-voltage work.






