10kv and 35kv Overhead Cable Aerial Insulated Power Cable

1. Standards and Scope of Application

The products adopt IEC ,NFC ,and so on , and they are suitable for aerial distribution electrical lines with rated AC voltage U(Um)10(12) Kv and 35(42) kv

1. Specific Property for Using

1. The min . temperature of laying cable is not lower than -20 C.
2. The max . temperature of HDPE insulated cable is 150 C , and that of the XLPE insulated cable is 250 C during short circuit (less than 5 seconds)
3. The max . long-time working temperature of the HDPE insulation is 75 C and that of the XLPE insulated cable is 90 C .
4. Every fault time of single-phase earthing shall be less than one minute .And that also shall be less than 8 hours per time and be less than 125 hours every year .
5. The permissible curving radius of single-core cable should be not less than 20(D+d)+ 5%mm , and that of the milti-core cable should be not less than 15(D+d)+5%mm .