The high-voltage large section conductor resistance measurement system is composed of a QJ36B-3A digital DC bridge and a DQ hydraulic standard fixture. It is a new generation of DC resistance testing instruments for cables, wires, copper bars, aluminum bars, multi strand aluminum gold stranded wires, etc. in China. It is an updated product of the Kelvin bridge, especially for measuring the DC resistance of large section (1200-33002mm) wires, cables, overhead wires, etc. This device is the first of its kind in China.

The digital bridge is a new generation of testing instrument for DC resistance of cables, wires, copper bars, aluminum bars, etc. It is an updated product of the Kelvin bridge. Especially for measuring the DC resistance of large cross-section (1200mm2-3300mm2) wires and cables.