e.g. Diesel Locomotive cable = DLO insulation cable up to 2kv rating.

"DLO is especially suited to supply power to traction motors of diesel-electric locomotives. It is also recommended as a portable cable for drilling rigs, on-shore or off-shore, railroad and transit car wiring, electric earth-moving equipment, in shipyard applications, arc welder supply leads, power and control jumper cable, telcom power supply and motor leads. The cable is suitable for use in wet or dry areas, conduits, ducts, troughs or trays, and where superior electrical properties are desired. The maximum continuous conductor temperature for normal operation is 90°C in wet or dry locations. DLO resists oils, acids, alkalines, heat, flame, and has abrasion resistance."
Max.

 

any wire should have rated voltage marked on the insulation. without knowing what is the insulation rated for, you should only consider for low voltage circuits. there are ampacity tables and calculators that will tell you what is the resistance or voltage drop for given current ...

 

DLO jumper cable and a 4/0 wire.