CEE-7 C 15 Non-Interchangeability Verification Gauge for Two-Pole Plugs with Earthing Contact

This CEE-7 C 15 Non-Interchangeability Verification Gauge is a precision-engineered testing instrument designed for compliance verification with the IECEE CEE-7 “Specification for plugs and socket-outlets for domestic and similar purposes” C 15 standard. The gauge specifically validates the non-interchangeability requirement between 10/16A 250V two-pole plugs without earthing contact and two-pole plugs with earthing contact, preventing the insertion of non-earthing contact plugs to maintain electrical safety protocols in manufacturing, quality control, and inspection applications.

Technical Specifications:

• Compliant with IECEE CEE-7 “Specification for plugs and socket-outlets for domestic and similar purposes” C 15 standard
• Designed for 10/16A 250V two-pole plugs (verifies non-interchangeability with earthed two-pole plugs)
• Primary function: Prevents insertion of two-pole plugs without earthing contact
• Precision dimensional parameters: ϕ40.0±0.03 mm, 33.5±0.03 mm, 51±0.01 mm, 19±0.05 mm, R=0.5 mm, R=1 mm
• Manufactured to strict dimensional tolerances ensuring verification accuracy
• Dimensional markings provided in metric (mm) units

Standardized Test Procedure:

1. Prepare the 10/16A 250V two-pole plug without earthing contact requiring non-interchangeability verification.
2. Position the verification gauge on a stable, level surface to maintain measurement precision.
3. Align the non-earthing contact plug with the gauge’s insertion interface, ensuring proper positional orientation.
4. Apply moderate insertion force (avoid excessive pressure that could compromise gauge or plug integrity).
5. Verify that the plug cannot be inserted into the gauge, confirming compliance with CEE-7 C 15 non-interchangeability requirements.
6. Document test results; if insertion occurs, the plug fails verification and does not meet CEE-7 C 15 standard requirements.

Application Scenarios:

• Non-interchangeability verification during plug manufacturing processes
• Quality control inspection in electrical component production facilities
• Compliance testing for safety certification laboratories
• Verification testing for regulatory bodies and standards organizations
• Educational and training applications in electrical safety programs