0-1802190-1 1802190-1 Auto Wire Terminal For Elcetric Connector Crimp Loose Terminals

1.R1 is a shrinking resistor. When the copper wire and the terminal contact each other, the surface cannot be fully contacted, and the micro is the contact with point and point. When the current flows from one contact to another contact part, the current cable is contracted to generate resistance, so the generated resistance is called a contraction resistor.

2.R2 is the sum of the conductor resistance. It is the sum of the ohm resistance of the terminal and the copper wire. Its size determines the conductivity, cross -sectional area and length of the material selected by the terminal and copper wire, and it is also related to the temperature.

3.R3 is the membrane layer resistor, which is the resistance produced by the adhesive film and the film on the surface of the copper wire and the side of the terminal.

2. Test method and judgment standard for carline beam terminal voltage drop

2.1

"QC/T29106-2004 Automobile Low Voltage Circuit Technical Conditions" terminal pressure connection voltage drop test method and judgment standard.

2.1.1 terminal voltage reduction test method

As shown in Figure 3, measurement at the middle position at the middle position of the terminal and the wire of the wire to the 75mm of the wire is measured. After deducting the 75mm long wire voltage, the voltage drop at the end of the terminal and the wire voltage. When one terminal connects two or more at the same time, the current is applied to each root wire to measure the voltage drop.

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