Automotive ALSE Testing & Long Wire Measurement

Don’t settle for testing that adds complexity and risk to your schedule. Shielding Integrity Services (SIS) delivers expert, fully accredited, independent Automotive ALSE Testing based on decades of practical, hands-on experience—not just theory. We use state-of-the-art automated systems that maximize testing efficiency, ensuring fast turnaround of accurate data and quick troubleshooting for any required performance adjustments. Whether validating a compact 3-meter setup or a specialized 10-meter facility anywhere in the world, SIS delivers the precise, compliant results you need to confidently move your projects forward.

Test Purpose & Core Standards

The Modeled Long Wire (Long Wire) Measurement confirms the critical conductivity and grounding integrity of a metallic test table used in automotive EMC measurements.

This test ensures your Absorber Lined Shielded Enclosure (ALSE), which is lined with ferrite and other radio frequency absorbing materials, provides a reliable and compliant environment for vehicle component testing.

Primary Test Standard

• Our Long Wire measurements are taken in accordance with the methods described in CISPR 25 (most current) Annex I –– ALSE performance validation from 150 kHz to 1.0 GHz.

Technical Specifications

The Long Wire measurement validates ALSE performance across a broad and critical range for automotive and component emissions.

• Validation Range: From 150 kHz to 1.0 GHz.
• Key Focus: Confirming conductivity and grounding of the metallic test table.
• Chamber Type: Specifically designed for Absorber Lined Shielded Enclosures (ALSE).

Test Integrity & Results

SIS uses proven procedures to ensure that the testing environment meets the rigorous requirements set by international automotive standards.

• Proven Procedures: Measurements are conducted using highly efficient methods described in CISPR 25.
• Data Assurance: We utilize our proven automated data capture software to increase accuracy and deliver fast, reliable test reports.
• We provide expert analysis to ensure your test table and enclosure are fully compliant.

Specialized Automotive EMC Expertise

As the automotive industry evolves, compliance for vehicle components is more crucial than ever. Our specialization in the Modeled Long Wire test provides the assurance manufacturers need.

• Expertise: Our test engineers are specialists in automotive EMC validation procedures.
• Efficiency: We work around your schedule to minimize downtime, ensuring your development cycle remains efficient.