Rubber flexible cable is used for household electrical appliances electrical tools and various mobile electrical equipments of ac rated voltage 450/750v or lower.
The rubber flexible cable carries out the standard:

Rated voltage 1kv ( um=1.2kv)
Gb5023-1997 rubber flexible cable voltages up to and including 450/750v.
Jb8735-1998 rubber flexible cable and flexible wire voltages up to and including 450/750v.
The length of the cable in coil should be 100m, and that on drum should be more than 100m; the length of pieces of shorter (no shorter than 10m each) should be no more than 10% of the total length package; it depends on final both agreements with length error allowance no more than 0.5%.