The CEI 23-50:2017 Fig 4 Test Probe is a specialized tool for verifying access to hazardous live or mechanical parts in electrical lighting equipment—designed specifically to meet Italian market safety requirements. It features a precision-machined metal shaft (for reliable gap penetration) and a non-slip insulating handle (for user protection), with dimensional tolerances aligned to Fig 4 of CEI 23-50. The probe’s rigid yet lightweight construction ensures consistent testing across different lighting fixtures, making it essential for manufacturers, labs, and certifiers working to comply with Italian electrical safety norms.
Standards:
| Standards No. | Clause/Figure | Standards Name |
| CEI 23-50:2017 | Fig 4 | Rules for the construction and testing of electrical equipment for lighting purposes |
Specifications:
Shaft Dimensions Length: 110mm (±0.2mm tolerance); Diameter: 4mm (±0.05mm tolerance) – matches CEI 23-50:2017 Fig 4 critical dimensions
Handle Specifications Length: 80mm; Diameter: 12mm; Material: Flame-retardant ABS plastic (UL94 V-0 rating)
Metal Shaft Material: 304 stainless steel (corrosion-resistant, wear-proof for repeated use)
Functional Design: Smooth, burr-free shaft tip (prevents damage to lighting fixture enclosures); integrated handle-shaft connection (no loose parts)
Tolerance Range: All key dimensions comply with ±0.2mm (linear) as specified in CEI 23-50:2017 Fig 4
Test Procedures:
1. Inspect the probe for bent shafts, cracked handles, or rust; confirm dimensions meet CEI 23-50:2017 Fig 4 specs.
2. Power off the lighting equipment under test and place it on a stable, flat surface.
3. Identify potential access points (e.g., gaps between fixture housing, vent openings).
4. Hold the insulating handle, align the shaft tip with the access point, and gently insert until resistance is felt.
5. Check if the shaft can reach hazardous parts (e.g., live wires, sharp components) inside the fixture.
6. Record results to verify compliance with CEI 23-50:2017 safety requirements.
Applications:
1. Safety testing of residential lighting fixtures (e.g., ceiling lights, table lamps) for Italian market compliance.
2. Compliance checks for commercial lighting equipment (e.g., retail display lights, office panel lights) per CEI 23-50:2017.
3. Quality control for LED lighting manufacturers producing fixtures for Italy (ensuring no hazardous part access).
4. Third-party certification testing (e.g., IMQ, CE) for lighting products seeking Italian market entry.
5. Pre-shipment verification of outdoor lighting (e.g., garden lights, streetlights) to meet CEI 23-50 safety norms.
Calibro di verifica della non accessibilit¨¤ alle parti attive attraverso gli schermi ed alle parti attive per le prese che hanno una protezione aumentata of CEI 23-50 Fig. 4
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