BS 1363-3 Figure 34 Compliance Verification Plug

The BS 1363-3 Figure 34 Compliance Verification Plug is a precision-engineered dimensional verification instrument designed to validate structural and dimensional conformity of 13A plugs, socket-outlets, adaptors, and connection units in accordance with BS 1363 standards, specifically Figure 34 of BS 1363-3 (“13 A plugs, socket-outlets, adaptors and connection units – Adaptors. Specification”). This verification tool maintains strict adherence to standard requirements for dimensional tolerances, material properties, hardness specifications, and surface roughness parameters, featuring brass contact pins and an insulating body construction. With material hardness exceeding 50HRC and minimal thermal expansion coefficient, the verification plug ensures dimensional stability and reliable performance for accurate conformity assessment of relevant electrical components.

Specifications
• Compliance standard: BS 1363-3 (“13 A plugs, socket-outlets, adaptors and connection units – Adaptors. Specification”) Figure 34
• Pin material: Brass
• Body material: Insulating material
• Material hardness: Exceeds 50HRC
• Material thermal expansion coefficient: Minimal
• All linear dimensions: Specified in millimetres
• Key attributes (dimensions, tolerances, surface roughness): Fully compliant with BS 1363 standard requirements
• Dimensional stability: Reliable and consistent due to minimal thermal expansion coefficient

Test Procedures
• Prepare the socket, plug, or adaptor sample for testing, ensuring it is free from damage, contamination, or debris that may affect verification accuracy.
• Inspect the verification plug to confirm brass pins are undamaged, the insulating body exhibits no cracks or excessive wear, and all dimensions comply with BS 1363-3 Figure 34 requirements.
• Align the verification plug with the sample (socket, plug, or adaptor) following the alignment guidelines specified in Clause 16 of the BS 1363-3 standard.
• Insert the verification plug into the sample smoothly, evaluating proper fit without excessive resistance or unacceptable looseness.