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Wire components and interconnecting wire components
The following are detailed technical requirements and testing items for wire components and interconnected wire components, covering multiple aspects such as labeling, structure, electrical performance, mechanical performance, environmental adaptability, etc
1. Logo
Clarity and durability: The logo should be clear and easy to read, and its durability should be ensured through wiping tests (such as wiping with a damp cloth for 15 seconds).
Content requirements: including rated voltage, rated current, manufacturer's name or trademark, model, certification mark, etc.
2. Dimensional gauge inspection
Dimensions of plugs and sockets: Use standard gauges to check the dimensions of plugs and sockets to ensure compliance with relevant standards (such as IEC 60884, GB 2099, etc.).
Tolerance requirements: Dimensional tolerances should comply with standard regulations to ensure interchangeability and compatibility.
3. Anti electric shock protection
Shell protection: The shells of plugs and sockets should be able to prevent users from coming into contact with live parts.
Pin design: The shape and size of the pin should ensure that it does not accidentally come into contact with live parts during insertion and extraction.
Protective door: The socket should be equipped with a protective door to prevent foreign objects from entering.
4. Grounding resistance test
Grounding continuity: Test the continuity of the grounding terminal to ensure that the grounding resistance meets the standard requirements (usually ≤ 0.1 Ω).
Grounding identification: The grounding terminal should be clearly marked and ensure its reliable connection.
5. Fixed socket structure
Installation method: Fixed sockets should provide reliable installation methods (such as screw fixation, embedded installation, etc.).
Wiring terminals: Wiring terminals should be able to firmly connect wires and prevent loosening.
6. Structure of plugs and mobile sockets
Shell strength: The shell should be able to withstand mechanical impact and pressure.
Flexible wire fixing device: Mobile sockets should be equipped with flexible wire fixing devices to prevent wires from being pulled off.
Pin strength: Pin should have sufficient mechanical strength to prevent deformation or breakage.
7. Aging resistance and protection provided by switch housing (IP)
Aging resistance test: Conduct aging tests in high temperature environments to ensure stable material properties.
IP protection level: Choose the appropriate IP level (such as IP20, IP44, etc.) based on the usage environment.
8. Insulation resistance and electrical strength
Insulation resistance test: Measure the insulation resistance to ensure compliance with standard requirements (usually ≥ 100M Ω).
Voltage withstand test: Conduct a voltage withstand test at a specified voltage (such as 1500V AC) to ensure no breakdown or flashover.
9. Temperature rise
Temperature rise test: Test the temperature rise of plugs and sockets under rated load to ensure that it does not exceed the specified limit.
Thermal protection: Built in thermal protection device to prevent damage caused by overheating.
10. Breaking capacity
Breaking ability test: Test the breaking ability of plugs and sockets at rated current to ensure that they can safely disconnect the circuit.
11. Normal operation
Plug and unplug test: Simulate normal plug and unplug operations to test the durability of plugs and sockets (e.g. ≥ 10000 times).
Load test: Test the performance of plugs and sockets under rated load.
12. The force required to unplug the plug
Pull out force test: Measure the force required to pull out the plug, ensuring it is within the specified range (usually 5-40N).
13. Flexible cords and their connections
Soft wire fixing device: Ensure that the soft wire fixing device can withstand the specified tensile force (such as 30N).
Connection reliability: Test the connection reliability between the flexible cord and the plug or socket to prevent loosening.
14. Mechanical strength
Impact testing: testing the reliability of plugs and sockets under mechanical impact.
Pressure testing: Apply specified pressure to test the mechanical strength of the casing.
15. Heat resistance (ball pressure)
Ball pressure test: Conduct a ball pressure test in a high-temperature environment to ensure that the material does not deform or soften.
16. Screws, current carrying components, and connections
Torque test: Test the torsional strength of screw connections.
Current carrying capacity: Ensure that current carrying components can withstand rated current without overheating.
17. Creepage distance, electrical clearance, and sealant penetration distance
Creepage distance: Determine the creepage distance based on the voltage level to prevent leakage.
Electrical clearance: Ensure that the minimum distance between live parts meets the standard.
Sealing distance: Ensure the thickness and uniformity of the sealing glue.
18. Insulation materials' resistance to abnormal heat, flame, and electrical traces
Heat resistance test: testing the stability of materials at high temperatures.
Flame retardant test: Test the flame retardant rating of materials according to standards such as UL94.
Tracking resistance: Test the tracking resistance of materials under leakage conditions.
19. Rust prevention performance
Salt spray test: Testing the corrosion resistance of metal components in a salt spray environment.
20. Additional test for pins with insulation sheath
Insulation sheath strength: Test the mechanical strength and electrical performance of the insulation sheath.
Wear resistance test: Simulate insertion and extraction operations to test the wear resistance performance of the insulation sheath.
summary
The above requirements and testing items cover the key points that need to be paid attention to in the design, manufacturing, and use of wire components and interconnected wire components. To ensure the safety and reliability of the product, it is recommended to strictly follow relevant international standards (such as IEC 60884, GB 2099, etc.) for design and testing.
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