CEI-23-50 Foglio di normalizzazione C8 (ex CEI UNEL 09323-64 B) Calibro per controllare I’impossibilita di una irregolare introduzione nella presa P30 delle spine S30, S31 e S32

CEI 23-50 Sheet C8 Gauge for Controlling Against Irregular Introduction of Specified Plugs into P30 Sockets is developed in compliance with CEI 23-50 Normalization Sheet C8, and its core function is to verify that S30, S31 and S32 plugs cannot be irregularly inserted into P30 sockets. With a fixed overall structure and specific weight requirement, it serves as a key tool to prevent potential electrical safety hazards caused by improper or forced plug insertion that deviates from normal usage orientation. It is a professional testing instrument for manufacturers, certification institutions and regulatory bodies engaged in the quality control and compliance verification of household and similar electrical plugs and sockets.

Specifications
• Complies with CEI 23-50 Normalization Sheet C8 standard requirements
• Features key dimensional parameters including 5.5±0.1 mm, 15.6±0.5 mm and 13±0.5 mm
• Has a specified overall mass of 1000 grams, which is critical for simulating the weight-induced insertion scenario
• Adopts a stably fixed integrated structure, with all components firmly connected to avoid loosening during testing
• Is dedicated to detecting the irregular insertion possibility of S30, S31 and S32 plugs into P30 sockets
• Maintains high dimensional stability to ensure consistent and accurate test results after repeated use

Test Procedures
• Prepare the gauge, to-be-tested S30/S31/S32 plugs and P30 sockets, and ensure all items are clean, free of deformation, burrs or other defects that may affect test accuracy.
• Fix the P30 socket in a stable position to prevent displacement during the testing process, and place the plug in a position that simulates an irregular insertion orientation relative to the socket.
• Mount the gauge on the plug according to the specified method, and let the gauge act on the plug relying on its own 1000g weight without additional external force.
• Observe and check whether the gauge makes contact with the front surface of the plug during the test, and judge whether the plug has the risk of irregular insertion into the P30 socket based on the contact status and insertion trend.
• Record the test phenomena and results in detail, and sort out the compliance status of each tested plug type against the standard.
• After completing all tests, clean the gauge and testing samples, and store the gauge in a dry, dust-free environment to maintain its structural integrity and dimensional precision.

Applications
• Production line quality inspection of plug and socket manufacturers, where the gauge is used to conduct batch sampling tests on S30/S31/S32 plugs and P30 sockets to eliminate products with irregular insertion risks.
• Compliance certification testing of electrical connection components by third-party testing institutions, using the gauge to verify whether the plug-socket matching meets relevant Italian safety standards.
• R&D and structural optimization phase of plug and socket products, applying the gauge to validate the rationality of P30 socket and plug structural designs, and adjusting parameters to improve anti-irregular insertion performance.
• Market supervision and spot-check work of regulatory departments, utilizing the gauge to inspect the safety performance of plugs and sockets on the market and remove unqualified products with potential insertion hazards.

CEI-23-50 Foglio di normalizzazione C8 (ex CEI UNEL 09323-64 B) Calibro per controllare I’impossibilita di una irregolare introduzione nella presa P30 delle spine S30, S31 e S32