Sorry, VW-1 is about as weak a test as you'll find. If this cable is for use outside your equipment in the US, the National Electrical Code NFPA-70 applies. I assume you are talking about low power signal cables, for example NEC Class 2 circuits or ITE limited power circuits.
For lengths greater than 10 feet outside your equipment (ref. section 725-61(e)Ex.3), you will need to have wiring rated CL2 or better (CL2-R or CL2-P) or an allowable substitution (CL3, CM, CATV, MP, FPLP, etc. see table 725-61). For plenum applications you will need CM-P (or allowable substitutions). For riser applications there is also a CL2-R type, but for most people, three cable types are too many to deal with and they just offer CL2 or CL2-P, recommending the CL2-P for riser applications. The temperature rating of the wire only comes into play for the operating temperature, determined by such things as current, neighboring wires, ambient, etc. It is not used in connection with flame/smoke rating. Note that plenum cable is needed in plenums, ducts and other spaces used for environmental air. This includes suspended ceilings and raised floors which may be used as space to move supply or return air for ventilation, but not if this same space has the moving air confined within separate ducts.
