What does the SV mean in Alpha Wire 299 SV005

BusBar Wire

What does the SV in the Alpha Wire Bus Bar Wire part number 299 SV005 call out?

Looking for the SV callout info in the datasheet, this information is not specified.

After checking with our Product Manager, that handles the Alpha Wire products, he stated the SV is calling out the SILVER color of the wire, as there is no insulation over the wire.

The Product Manager also stated that there is no document specifying this callout.