Conductive rod

The utility model relates to a conductive rod. A metal electrode rod (1) wrapped by an insulation layer is inserted into a bore of a low magnetic rod (2) of a transformer, and a fixed rod (4) or a bore is arranged around a bore of a magnetic conductive board; sealing rings (8) are arranged on the insulation layer of the outer part of a low-magnetic plate and in the jointing position of the low-magnetic plate and the insulation layer, and a fixed pressing board (6) is arranged outside the sealing ring. The lower magnetic board and the fixed pressing board are fixed by a fixed rod (4). Both sides of the low magnetic board (2) of the transformer are provided with the sealing rings. The utility model has the advantages of simple structure and good sealing performance, and obviously improves the major defects affecting the leakage of the transformer.