BS 546 Figure 2 5A Withdrawal-pull Gauge for Contact Effectiveness Verification

BS 546 Figure 2 5A Withdrawal-pull Gauge for Contact Effectiveness Verification is a precision testing instrument engineered to evaluate the contact effectiveness, structural compliance, and dimensional accuracy of 5A plugs and sockets in accordance with BS 546 standards, specifically Figure 2 of BS 546 (‘Two-pole and earthing-pin plugs, socket-outlets and adaptors. Specification’). This gauge employs a withdrawal-pull methodology to validate critical contact parameters, maintaining strict adherence to the standard’s requirements for dimensions, tolerances, material properties, hardness, and surface roughness. With material hardness exceeding 50HRC and a low thermal expansion coefficient, the gauge ensures stable and reliable performance, delivering precise results for validating the contact effectiveness of 5A electrical connection components.

Specifications

• Compliance standard: BS 546 (‘Two-pole and earthing-pin plugs, socket-outlets and adaptors. Specification’) Figure 2
• Application rating: 5A
• Core function: Measures contact effectiveness via withdrawal-pull method
• Nominal contact diameter: 0.199 inches
• Gauge capacity: 8 ounces
• Material hardness: Over 50HRC
• Material thermal expansion coefficient: Low
• Key attributes (dimensions, tolerances, material, surface roughness): Fully compliant with BS 546 standard requirements
• Dimensional stability: Stable and reliable due to low thermal expansion coefficient
• Design feature: Includes specified radius (E radius) as per standard
• Total weight: Calibrated to meet standard requirements for testing accuracy

Test Procedures

• Prepare the 5A plug or socket sample for testing, ensuring it is free from damage, corrosion, or debris that could affect contact effectiveness or test results.
• Inspect the gauge to confirm its surface is clean, free from wear or deformation, and that its nominal diameter (0.199 in.) and weight meet BS 546 Figure 2 specifications.
• Align the gauge with the sample’s contact points in accordance with Cl… (truncated)