Independent Oversight for Reliable Equipment Performance
Ensure Confidence Before and After Delivery
KEMA Labs offers internationally recognised Witnessing Services for both Factory Acceptance Tests (FAT) and Site Acceptance Tests (SAT) . These services are designed to verify that electrical equipment meets technical specifications, performs as expected, and is ready for safe integration into the power grid or industrial systems.
As part of our broader Quality Assurance Toolbox , FAT and SAT witnessing ensures that what is designed and manufactured is also tested, validated, and trusted .
What We Do
Factory Acceptance Test (FAT) Witnessing
Performed at the manufacturer’s facility before shipment, FAT witnessing includes:
Documentation of results and compliance status
Verification of test procedures and instrumentation calibration
Review of conformity with technical specifications and tender requirements
Oversight of test execution to prevent overstress or undetected defects
Site Acceptance Test (SAT) Witnessing
Conducted at the installation site, SAT witnessing ensures:
- Proper installation and commissioning of equipment
- Functional testing under real operating conditions
- Identification of installation-related issues
- Final validation before energisation
Why It Matters
- Risk Mitigation : Prevent costly failures by identifying issues before deployment
- Compliance Assurance : Ensure alignment with IEC, ISO, IEEE, and customer-specific standards
- Transparency : Independent third-party validation builds trust with end users and utilities
- Efficiency : Avoid delays and rework by catching problems early in the process
Global Reach, Local Expertise
With laboratories and inspectors across Europe, the Americas, Asia, and the Middle East, KEMA Labs provides FAT and SAT witnessing wherever your operations are located. Our experts bring decades of experience and deep technical knowledge to every inspection.
