Unistrand arctic grade cable 3 core unistrand 3183ag 15mm blue 100m the unistrand arctic grade 15mm cable 3 core blue 100m has been designed to withstand severe external temperatures remaining flexible at temperatures as low as 20degcmanufactured to remain flexible at temperatures down to minus 20degc the arctic grade cable is particularly suitable for outdoor applications and for use where flexibility is required at sub zero temperatures at normal temperatures the cable is very li