UL 498 Figure 105.1 Dimensional Verification Gauge

This UL 498 Figure 105.1 dimensional verification gauge is engineered to validate the structural and dimensional conformity of plugs and sockets in accordance with UL 498:2009 standards, specifically addressing the revised specifications of Figure 105.1. It maintains strict adherence to standard requirements for dimensional parameters, tolerance limits, material characteristics, and surface finish properties, incorporating high hardness ratings, minimal thermal expansion coefficients, and operational stability to ensure precise and reliable electrical component assessment.

Specifications:
• Applicable standard: UL 498 Figure 105.1
• Key diameters: 0.156 in, 0.125 in, 1.375 ± 0.010 in, 0.0672 in, 0.051 in, 0.050 in, 0.033 in, 0.030 in
• Flat blade thickness: 0.126 in / 0.124 in
• Critical length dimensions: 0.469 in, 0.467 in, 0.251 in, 0.249 in, 0.360 in, 0.358 in, 0.719 in, 0.717 in
• Angle: 45° (both sides)
• Grounding pin: Removable with snug fit, installed in a hole with ±0.0002 in tolerance
• Material hardness: ≥50HRC
• Material thermal expansion coefficient: Small, ensuring dimensional stability
• Dimensional tolerances: Compliant with UL 498:2009 requirements
• Surface roughness: Meets UL 498 specified standards

Test Procedures:
• Inspect the dimensional verification gauge for cleanliness, absence of visible damage, or dimensional anomalies prior to utilization; verify the removable grounding pin is securely fitted.
• Secure the plug or socket under evaluation in a stable fixture to prevent displacement during inspection procedures.
• Align the gauge with the designated testing position of the product as specified in UL 498:2009 Figure 105.1.
• Conduct structural and dimensional verification by guiding the gauge through the relevant features (slots, holes) of the test specimen.
• Verify whether the product’s structural configuration and critical dimensions conform to the tolerance ranges and specifications outlined in UL 498:2009.