At present, there are some cables with better temperature characteristics in China, such as:
1. Rubber insulated cables:
The long-term operating temperature of WYJHDP wire core for rubber insulated cables in the field shall not exceed -45 ~ 50℃.
WYJHQ, a mobile rubber insulated cable used in the field, operates at -45 ~ 50℃. The operating temperature of the core shall not exceed 65℃ for a long time.
Rubber insulated cold – resistant cable for field use YHD operating environment is -50 ~ 50℃. The operating temperature of the core shall not exceed 65℃ for a long time.
2. Fluoroplastic insulated cables:
The service environment of AF-200 of fluoro-46 insulated installation line is -60 ~ 200℃.
Copper conductor outdoor PVC insulated wire BVW (NC-BV), laying temperature not less than -20℃.
Ff4-2, FF4H3-2 and other silver-plated copper ptFE insulated wire and cable are fixed and perfunctory, with rated voltage of 600V; Rated temperature: 200℃; The minimum operating environment is -65℃.
Silver plated copper core polyfluoroethylene propylene insulated wire and cable such as FF46-2, FF46P21H6-2, rated voltage of 600V; Rated temperature: 200℃; The minimum operating environment is -65℃.
3. Polyethylene cables
Polyethylene insulated coaxial RF cables, such as SYV-75-1.5-1 and SYV-75-2.5, are used at temperatures ranging from -40 ~ +65℃. Rated voltage: 300V; The temperature of installation and laying should not be lower than -15℃.
BV, BYR, BYR, BYP, BYVP (for fixed laying) RY, RVP, RYVP (for mobile use) can be used under 98% relative humidity at -40 ~ +60℃.
4. PVC cable
Avp-1 and AVP-3 are used for connecting telecommunication equipment with PVC insulated and shielded installation cables. The ambient temperature is -40 ~ 70℃ and the installation temperature is not lower than -15℃.
The lowest operating temperature of VV and VCY of copper conductor PVC insulated and sheathed power cable is -40℃, and the highest allowable operating temperature is 70℃. The ambient temperature for cable laying should be no less than 0℃.