UL 498 Figure 98.1 SB1889 Improper Insertion Test Blades

UL 498 Figure 98.1 SB1889 Improper Insertion Test Blades is a specialized improper insertion test blade developed in strict compliance with UL 498 Figure 98.1 standard, dedicated to verifying the structural rationality and dimensional compliance of plugs and sockets, especially for assessing the products’ resistance to improper insertion risks. Its overall design, material selection and performance parameters fully meet the technical requirements of the relevant standard, with excellent material hardness and stable dimensional performance ensured by a small thermal expansion coefficient. As a key testing tool for quality control and compliance certification of electrical connection components, it enables manufacturers and testing institutions to effectively detect whether plugs and sockets meet the safety and structural standards specified in UL 498, thus preventing potential safety hazards caused by improper insertion and ensuring the overall reliability of electrical products.

Specifications
• Complies with the technical requirements of UL 498 Figure 98.1 standard
• Material hardness reaches no less than 50HRC for enhanced wear resistance and structural stability
• Features a small thermal expansion coefficient to maintain stable dimensions and tolerances in different working environments
• Gauge dimensions and tolerances are precisely calibrated to match standard specifications
• Surface roughness meets the strict indicators of relevant industry standards
• Adopts high-quality materials to ensure long-term testing accuracy and service life
• Structural design aligns with the improper insertion test scenarios specified in the standard

Test Procedures
• Prepare the improper insertion test blade and the plugs or sockets to be tested, ensuring that both the tool and the tested products are clean, free of deformation or debris that may interfere with test results.
• Refer to the operation guidelines of UL 498 Figure 98.1 to align the test blade with the insertion port of the plug or socket in the simulated improper insertion posture.
• Gently perform the improper insertion operation according to the standard test requirements, and observe whether the structure of the tested product can resist improper insertion and whether its size meets the standard specifications.
• Record all test data and phenomena in detail, including the fit status of the test blade and the structural response of the tested product, and judge whether the product complies with UL 498 standard.
• After completing the test, clean the test blade with a professional cleaning tool to remove surface impurities, and store it in a dedicated protective container to avoid damage and ensure the accuracy of subsequent tests.

Applications
• Production line quality inspection of plug and socket products in electrical component manufacturing plants to verify resistance to improper insertion
• Compliance certification testing of electrical connection devices for third-party testing and certification institutions
• Quality verification of plug and socket accessories in the electronics and electrical appliance manufacturing industries
• Structural design validation for new plug and socket products in the R&D phase of electrical equipment enterprises, focusing on improper insertion prevention performance
• Routine safety inspection of plug and socket components during the maintenance and upgrade of engineering electrical systems to ensure compliance with safety standards

UL 498 Figure 98.1 SB1889 Improper Insertion Test Blades