Dito Di Prova Articolato OF CEI 23-50 Fig. 2

The Dito di Prova Articolato (Articulated Test Finger) of CEI 23-50 Fig 2 is a specialized safety tool designed for testing access to hazardous live parts in electrical and electronic equipment—common in EU/Italian markets, such as household appliances, industrial control panels, and IT devices. Its 3-joint flexible design mimics the natural movement of a human finger, allowing it to navigate curved or narrow paths (e.g., around wiring or control modules) that rigid probes can’t reach. Crafted from conductive stainless steel (for detecting live components) and paired with a heat-resistant insulated handle, it applies a controlled 10N thrust to simulate accidental contact. Strictly compliant with CEI 23-50 and aligned with global IEC standards, it’s critical for manufacturers to ensure equipment safety and meet Italian/EU regulatory requirements.

Standards:

Specifications:
Tool Type: Dito di Prova Articolato (Articulated Test Finger) – CEI 23-50 Fig 2 compliant; for hazardous part accessibility testing
Probe Material: Conductive stainless steel (resistance ≤ 0.1Ω; corrosion-resistant; 3 articulated joints for human-like movement)
Handle Material: Silicone-coated ABS plastic (fully insulated, resistance ≥ 100MΩ; heat-resistant up to 120°C; ergonomic grip for precision)
Joint Characteristics: 3 pivot joints; max bending angle per joint: 90°; maintains structural integrity under 10N thrust
Key Dimensions:
– Total Probe Length (including joints): 180mm ± 0.2mm
– Probe Tip Diameter: 8mm ± 0.05mm
– Handle Length: 120mm ± 0.5mm
– Total Length (Probe + Handle): 300mm ± 0.5mm
Applied Thrust: 10N ± 0.5N (standard for CEI/IEC testing; simulates light accidental finger contact with equipment)
Core Function: Navigates complex equipment internals via flexible joints; detects accessible hazardous live parts; ensures CEI 23-50 and IEC compliance

Test Procedures:
1. Inspect the articulated test finger for damage (loose joints, bent probe segments, cracked insulation) and confirm conductivity with a test tool.
2. Power on the equipment under test (EUT) and set it to normal operating mode (e.g., household appliance “on” position).
3. Hold the insulated handle, use the 3-joint design to guide the probe into EUT gaps (e.g., control panel seams, vent slots).
4. Apply a steady 10N thrust to the probe—advance until resistance from components or enclosures stops insertion.
5. Check the connected live-part detection instrument for signals (indicating contact with hazardous parts).
6. Record results: Pass if no hazardous contact is detected; Fail if live parts are accessible.

Applications:
1. Testing access to live wires in Italian-market household refrigerators (per CEI 23-50:2018 Fig 2) to prevent electric shock.
2. Verifying industrial control panel wiring gaps in EU manufacturing facilities (compliant with IEC 61032:2017) for operator safety.
3. Safety checks for IT server rack internal paths (per UL 61010-1:2023) to block exposure to high-voltage terminals.
4. Quality control for Italian-designed washing machine control modules during manufacturing, ensuring CEI compliance.
5. Post-production testing of non-patient-contact medical devices (e.g., thermometers) for EU markets to meet regional safety standards.

Dito Di Prova Articolato OF CEI 23-50 Fig. 2