Product No: GNGPL-235C4
This CEI-23-50 Foglio di normalizzazione C4 (ex CEI UNEL 09318-64 2P) Calibro”Passa”per la verifica degli spinotti tondi delle spine S30, S31 e S32 is a specialized “Passa” (Pass) calibration gauge designed to verify the round pins of S30, S31, and S32 plugs, strictly adhering to the CEI 23-50 standard (formerly CEI UNEL 09318-64 2P). It serves as an essential quality verification tool for plugs used in household and similar applications, ensuring that the diameter of the round pins meets precise dimensional requirements. By confirming that pins can pass through the gauge without force, it guarantees plug-socket compatibility, reliable electrical contact, and overall operational safety.
Specifications:
• Complies with CEI 23-50 “Spine e prese per usi domestici e similari – Parte 1: Prescrizioni generali” C4 (ex CEI UNEL 09318-64 2P)
• Application scope: Dedicated to verifying round pins of S30, S31, and S32 plugs
• Gauge type: “Passa” (Pass) gauge
• Key dimension: 4.86+0.0 mm
• Core requirement: Plug round pins must penetrate the gauge without force
• Unspecified dimensions: Not constrained by the standard’s unified requirements
• Additional dimensional reference: 5=85 mm (as per product specification)
Test Procedures:
• Prepare the S30, S31, or S32 plug under test, ensuring its round pins are clean, intact, and free from deformation or wear.
• Inspect the gauge to confirm it meets the 4.86+0.0 mm dimension requirement and has no damage to the through-hole structure.
• Select one round pin of the plug and align it with the gauge’s through-hole in the natural insertion direction.
• Attempt to pass the pin through the gauge without applying additional force (i.e., using only the pin’s own weight or minimal manual guidance).
• Observe whether the pin can smoothly penetrate the gauge; the pin passes the test if it does so without force.
• Repeat steps 3-5 for all round pins on the plug to ensure comprehensive verification.
• Record the test results; the plug meets the standard if all its round pins can pass through the gauge without force.
Applications:
• Quality control testing of S30, S31, and S32 plugs during manufacturing processes.
• Compliance verification for plugs used in household, commercial, and office electrical systems.
• Batch product inspection in plug production facilities to ensure consistent pin diameter accuracy.
• Conformity assessment by certification bodies and third-party testing laboratories.
• R&D and design validation for plug manufacturers optimizing the dimensional precision of round pins.
• Pre-shipment inspection of plugs to meet CEI 23-50 standard requirements for market access.
• Compatibility testing between plugs and matching sockets to ensure reliable electrical connections.

CEI-23-50 Foglio di normalizzazione C4 (ex CEI UNEL 09318-64 2P) Calibro”Passa”per la verifica degli spinotti tondi delle spine S30, S31 e S32