When it comes to the "-2" that's on all our wire. VW-1 And other markings like FT4 and so on has nothing to do with "-2" technically. For example, XHHW-2 doesn't have a VW-1 unless it's ordered with it...and most don't need VW-1...so why pay for it. As a manufacturer we are not going to use optional additives if they are not required....only when requested.
Sent from my SAMSUNG-SM-G935A using Tapatalk