CEI 23-50 Fig. 4 Test Probe for Hazardous Part Accessibility Verification

The CEI 23-50 Fig. 4 Test Probe is a precision-engineered verification tool designed for assessing accessibility to hazardous live parts and mechanical components in electrical lighting equipment, specifically engineered to meet Italian market safety compliance requirements per CEI 23-50 standards.

This specialized probe features a precision-machined 304 stainless steel shaft with dimensional tolerances strictly aligned to Fig. 4 of CEI 23-50:2017, ensuring reliable gap penetration and consistent testing performance. The non-slip insulating handle is constructed from flame-retardant ABS plastic with UL94 V-0 rating, providing essential user protection during testing procedures.

Technical Specifications:

• Shaft Dimensions: Length: 110mm (±0.2mm tolerance); Diameter: 4mm (±0.05mm tolerance) – conforms to CEI 23-50:2017 Fig. 4 critical dimensional requirements
• Handle Specifications: Length: 80mm; Diameter: 12mm; Material: Flame-retardant ABS plastic (UL94 V-0 rating)
• Metal Shaft Material: 304 stainless steel (corrosion-resistant, wear-resistant for repeated testing cycles)
• Functional Design: Smooth, burr-free shaft tip (prevents damage to lighting fixture enclosures); integrated handle-shaft connection (eliminates loose parts)
• Tolerance Range: All critical dimensions comply with ±0.2mm linear tolerance as specified in CEI 23-50 Fig. 4

Standardized Test Procedures:

1. Inspect the probe for bent shafts, cracked handles, or corrosion; verify dimensions meet CEI 23-50:2017 Fig. 4 specifications
2. De-energize the lighting equipment under test and position it on a stable, level surface
3. Identify potential access points (e.g., gaps between fixture housing components, ventilation openings)
4. Grasp the insulating handle, align the shaft tip with the access point, and insert gently until resistance is detected
5. Determine if the shaft can contact hazardous parts (e.g., live conductors, sharp mechanical components) within the fixture
6. Document results to verify compliance with CEI 23-50 safety requirements

Primary Applications:

• Safety compliance testing of residential lighting fixtures (e.g., ceiling-mounted luminaires, table lamps) for Italian market certification
• Compliance verification for commercial lighting installations requiring CEI 23-50 conformity assessment
• Quality control testing in manufacturing facilities producing electrical lighting equipment for Italian distribution
• Third-party laboratory testing and certification body verification procedures