Traditional Culture Encyclopedia - Traditional stories - Test parameters of wire harness
Test parameters of wire harness
Test the conductivity of cables (such as open circuit, short circuit, wrong welding, missing welding, etc.). ). Continuity test can flexibly select 2-wire or 4-wire test method according to the user's test accuracy and resistance.
Two-wire test mode
Test voltage: 0. 1 V -20 V Test current: 10 mA-2.5 A On-resistance: 1 ω-2 kω On-resistance: 1 ω-2 kω Test time: 1 ms-99 s Test accuracy:.
4-wire test mode
Test voltage: 0. 1 V -20 V Test current: 10 mA-2.5 A On-resistance: 1 mω-2 kω On-resistance: 1 mω-2 kω Test time: 1 ms-99 s Test accuracy.
Insulation test
Check the overall quality of the cable (scratches, pin bending, insulation and other faults). The insulation test can set the insulation resistance range according to user requirements or industry standards. For example, aerospace, aviation or military applications require higher insulation resistance requirements than general industrial applications.
Test voltage: 2VDC -2 120VDC (depending on the type of test board), insulation resistance: 50kω-5gω, test accuracy: 50kω-5gω, short-circuit current: 2v-20v: 40ma20v-2120v:10ma.
Rise/fall time: 1 ms -60 s test time: 1 ms-999 s.
Withstand voltage test (high voltage)
Check the overall quality of the cable (such as breakdown voltage, grounding, scratches, breakage, bending needle, insulation, etc.). The breakdown voltage test can better reflect the hidden fault of the cable. Different cable types can choose different voltages (power supply, high and low frequency cable, bus, network cable, communication cable, etc.). )
~ DC withstand voltage test
Test voltage: 2 V-6000 VDC (depending on the type of test board) Breakdown current: 500 μA-100 mA Rise/fall time: 1 ms -60 s Test time:1ms-999 s.
~ AC withstand voltage test
Test voltage: 100 V-5000 VAC (depending on the type of test board); Breakdown current: 500μ a-100ma; Leakage current: 500μ a-100ma; Rise/fall time:1ms-60s; Test time: 1 ms
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