UL 498 Figure 100.1 Improper Insertion Test Blades

This UL 498 Figure 100.1 Improper Insertion Test Blades set comprises two precision-manufactured test blades engineered to exact specifications defined in UL 498 Figure 100.1. Designed for safety compliance verification of attachment plugs and receptacles, this equipment simulates improper insertion scenarios to assess electrical product safety performance. The test evaluates whether devices prevent potential hazards such as electric shock when subjected to incorrect insertion, ensuring compliance with UL 498 safety standards for household and similar applications.

Specifications

• Full compliance with UL 498 standard requirements, specifically aligned with Figure 100.1 specifications for improper insertion testing
• Includes two test blades (Test Blade 1 and Test Blade 2) for comprehensive safety verification
• Material: High-quality tool steel for durability and consistent test performance
• Thickness of both blades: 1.40-1.52 mm (0.055-0.060 inch)
• All edges feature a maximum radius of 0.13 mm (0.005 inch R) for standardized simulation
• Length of both blades: 7.80-7.92 mm (0.307-0.312 inch)
• Key dimensional tolerances for Test Blade 1: 1.52±0.13 mm (0.060±0.005 inch) with a 45°30′ angle specification
• Key dimensional tolerances for Test Blade 2: 4.00±0.13 mm radius and 5/32±0.005 inch radius
• Engineered for precise simulation of improper insertion conditions to assess product safety

Test Procedures

• Inspect the test blades to ensure they are free from damage, corrosion, or deformation, and confirm their dimensions comply with UL 498 Figure 100.1 requirements.
• Prepare the attachment plug or receptacle sample, ensuring it is in good working condition without cracks, loose components, or electrical defects.
• Secure the sample in a stable, non-conductive fixture to prevent movement during testing and ensure operator safety.
• For Test Blade 1: Align the blade with the sample’s socket or plug opening according to the improper insertion angle (45°30′) specified in the standard…