Expert High Voltage Calibration Services
Reliability in high-voltage environments is not just a matter of accuracy; it is a fundamental requirement for operational safety. At DRS Technologies, we provide accredited high voltage calibration services for a wide spectrum of electrical test equipment. Our laboratory is engineered to handle the unique demands of high-potential testing, ensuring that your HV indicators, probes, and generators deliver precise data while maintaining the highest safety margins.
The Importance of High Voltage Precision and Safety Compliance
High-voltage instruments are subject to extreme electrical stress that can cause component degradation, dielectric breakdown, and measurement drift. In sectors such as power distribution, aerospace, and medical manufacturing, an uncalibrated HV meter can lead to catastrophic equipment failure or dangerous safety violations. Regular calibration at DRS Technologies verifies that your equipment meets the stringent requirements of IEC 60060 and IEEE Standard 4.
Our Specialized HV Calibration and Testing Process
DRS Technologies utilizes advanced reference standards and controlled environments to perform high-accuracy calibrations:
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Detailed Visual and Safety Inspection: We examine the device for insulation cracks, carbon tracking, and terminal integrity to ensure the unit is safe to energize.
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Environmental Stabilization: HV instruments are highly sensitive to humidity and temperature. We acclimate all equipment in our climate-controlled lab to eliminate environmental variables.
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Multi-Point Voltage Verification: Using stable HV sources and precision dividers, we test the equipment across its full range (AC and DC) to determine linearity and accuracy.
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Dielectric and Insulation Testing: We verify the integrity of the instrument’s own insulation to ensure it provides the necessary protection for the operator during field use.
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Comprehensive Certification: Every service concludes with a NIST traceable certificate featuring “as-found” and “as-left” data, uncertainty budgets, and a formal statement of compliance.
Comprehensive Capabilities for High Voltage Instrumentation
Our laboratory supports a diverse range of high-voltage measuring and testing tools, including:
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High Voltage Probes and Dividers
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Insulation Resistance Testers (Megohmmeters)
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Hipot Testers and Dielectric Strength Testers
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HV Indicators and Phasing Sticks
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Electrostatic Voltmeters
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Transient and Impulse Generators
Frequently Asked Questions Regarding High Voltage Calibration
What standards govern high voltage calibration services?
High voltage calibration is primarily governed by ISO/IEC 17025 for laboratory competence, alongside technical standards such as IEC 60060 (High-voltage test techniques) and IEEE Standard 4. Adhering to these ensures that measurement uncertainties are properly accounted for and results are globally recognized.
How often should high voltage probes and meters be calibrated?
Due to the high-stress nature of the application, most manufacturers and safety bodies recommend a twelve-month calibration interval. However, equipment used in harsh field conditions or for critical safety-of-life testing may require more frequent six-month intervals to monitor for dielectric aging.
Does DRS Technologies provide NIST traceable HV calibration?
Yes. All high voltage calibrations performed by DRS Technologies are traceable to the National Institute of Standards and Technology (NIST). This provides an unbroken chain of comparisons that verifies your instrument’s performance against national primary standards.