The terminal wire harness is the internal connection wire of electronic products and electrical equipment. Its function is to connect two independent circuits and transmit signals or currents in the two circuits. It can be said that terminal wires are very important for electronic products. For electronic products of different specifications, terminal wires for different purposes have different requirements, but no matter what kind of terminal wires are used, their resistivity must meet the standard. Otherwise it is difficult to play a role. So how should the resistivity of the terminal wire harness be detected?
1. Turn on the power switch of the resistivity tester.
2. Clamp the pair of induction clamps on both sides and observe whether the reading is zero.
3. If the reading displayed by the instrument is 0, take a 1m length of the copper wire to be tested from the terminal wire and clamp the two ends of the copper wire with two induction clamps. The tested copper wire must not be in contact with any metal objects.
4. Observe the reading displayed by the resistivity tester, and take the reading to calculate the resistivity. The calculation method is as follows: resistivity = reading ** 0.7854 * indoor temperature conversion coefficient/1000.