... /T packaging: wooden drum450/750V Solid, Stranded copper core, PVC insulated NYY control cable A. Application:The PVC insulated Control cable are suitables for connections of ... :a. the long-term working temperature: PVC and PE insulated should not be above 70, XLPE insulated should not be above 90.b ... not be less than 6 times. 450/750V Solid, Stranded copper core, PVC insulated NYY control cable