UL 498 Figure 111.1 Test Gauge
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This UL 498 Figure 111.1 Test Gauge is precision-engineered to validate the structural and dimensional conformity of plugs and sockets in accordance with UL 498 standards, specifically meeting the specifications of Figure 111.1. It incorporates tool steel construction with high hardness, strict adherence to standard-defined dimensions and tolerances, minimal thermal expansion, and an optimized surface finish, ensuring reliable performance and accurate results for electrical component verification. Specifications: • Applicable standard: UL 498 Figure 111.1 • Material: Tool steel (pins and blades) • Rockwell hardness: C58 to C60 • Key dimensional parameters (inches/mm): – Ground pin diameter: 0.251 in [6.38 mm] / 0.249 in [6.32 mm] – Flat blade thickness: 0.126 in [3.20 mm] / 0.124 in [3.15 mm] – Axis-to-axis distance (flat blades): 0.719 in / 0.717 in – Overall length segment: 1.375 ± 0.010 in [35 ± 0.3 mm] – Blade radius (sharp edge removal): 0.016–0.020 in [0.40–0.50 mm] – Surface finish (blades): Maximum 32 microinch [813 nm] (90° to major axis) – General tolerance (unspecified dimensions): ±0.012 in [±0.3 mm] • Material thermal expansion coefficient: Low, ensuring dimensional stability • Compatible configurations: 1-15R, 5-20R, 5-20RA, 6-20A, 6-20RA Test Procedures: • Inspect the test gauge for cleanliness, absence of visible damage, or dimensional deviations prior to use; verify surface finish with 10X optical magnification if required. • Secure the plug or socket under test in a stable fixture, ensuring alignment with the gauge’s compatible configuration (1-15R, 5-20R, etc.). • Align the gauge’s pins and blades with the corresponding slots/holes of the test sample as specified in UL 498 Figure 111.1. • Conduct structural and dimensional verification by guiding the gauge into the product’s features, assessing proper fit and compliance with defined tolerances. • Confirm that all critical dimensions (e.g., pin/blade size, axis distance) of the product align with UL 498 requirements. • Document…