Scope of application: This product is suitable for connecting thermocouple terminals to temperature measuring instruments in the external control system of nuclear island reactor buildings in nuclear power plants. The rated voltage of this product is 500V; the long-term allowable working temperature of the cable conductor is 90 ℃; The normal service life of cables is greater than 60 years. This product has passed the ministerial level appraisal of scientific and technological achievements and reached the international advanced level. We can also provide optimized cable design solutions based on the customer's usage environment requirements.