An apparatus for measuring RRR value of conductor

The utility model discloses a device for measuring the RRR value of a conductor. The device comprises a sample rod, a sample skeleton and a low-temperature container, wherein the top of the low-temperature container is in threaded connection with a sealing flange, a longitudinally-arranged sample rod is inserted and fixed in the middle of the sealing flange in a penetrating mode, one end of the bottom of the sample rod is inserted into the low-temperature container, the middle end of the bottom of the sealing flange is connected with a threaded head, and the threaded head is in threaded connection with the low-temperature container. And the sample can be stably fixed on the framework through the clamping mechanism, so that reliable contact can be ensured, the disassembly is convenient, andthe conductor sample cannot be damaged. The sample framework and the sample rod are fixedly connected through threads, disassembly and replacement are convenient, later maintenance is simple, and cost is low. And during low-