flexible control cable

the indication of plastic insulated control cable consists of type,number of cores,nominal sectional area of conductor,when the same type product isi made of different class of conductor,the more flexible one is indicated with(b) following the specification.the rated voltage:450/750v;the max.long-term operating temperature of conductor: PE insulated cable:70C XLPE insulated cable:90C PVC insulated cable:70C&90C