IEC 62368-1 Figure V.5 Terminal Probe

IEC 62368-1 Figure V.5 Terminal Probe is a precision safety testing instrument engineered for compliance verification of audio/video (AV) and information/communication technology (ICT) equipment. This specialized probe targets micro-terminals, miniature connectors, and restricted-access openings to validate the inaccessibility of hazardous live parts as mandated by IEC 62368-1 and UL 62368-1 standards.

The probe incorporates an ultra-thin, rigid stainless steel tip with a precisely controlled 1mm diameter to penetrate compact spaces without inducing mechanical damage to components. This is complemented by an insulating nylon handle engineered for secure, controlled manipulation during testing procedures. The design simulates accidental contact scenarios with small terminals to verify that hazardous voltages remain inaccessible under normal operating conditions.

Manufactured with dimensional stability and corrosion resistance, this probe is essential for testing laboratories, quality control departments, and engineering teams conducting comprehensive AV/ICT safety compliance assessments according to international standards including IEC 62368-1, UL 62368-1, and GB 4943.1.

Technical Specifications

• Probe Type: IEC 62368-1 Figure V.5 Terminal Probe
• Probe Material: Stainless steel (ultra-thin, rigid construction; corrosion-resistant; maintains 1mm diameter accuracy)
• Handle Material: Nylon (electrically insulating, non-slip surface; heat-resistant; ensures secure grip during precision testing)
• Key Dimensions:
  • Probe Diameter: 1.0 mm ± 0.05 mm
  • Effective Probe Length: 20 mm ± 0.2 mm (optimized for micro-terminal access)
  • Handle Length: 110 mm ± 0.5 mm
  • Total Length: 130 mm ± 0.5 mm
• Applied Force: Minimal force application (simulates light, accidental contact with micro-terminals/connectors)
• Primary Function: Verification of hazardous live part inaccessibility in micro-terminals and restricted openings of AV/ICT equipment per IEC 62368-1, UL 62368-1, and GB 4943.1 test protocols

Standardized Test Procedures

1. Conduct visual inspection of the probe for any damage (e.g., tip deformation, handle cracks) to ensure dimensional accuracy.
2. Power the AV/ICT equipment under test and allow it to reach normal operating mode.
3. Grasp the insulating nylon handle and align the 1mm probe tip with the target micro-terminal or restricted opening.
4. Insert the probe gently (up to 20mm effective length) toward potential hazardous live parts.
5. Monitor whether the probe makes contact with any dangerous components (e.g., exposed terminal contacts).
6. Document test results to determine compliance with safety requirements (pass/fail criteria).