S1 or S1/S5 RFOU(i) 250V Individual Shielding &Armour NEK606 Instrument cableApplications : ... braid.Outer Sheath :Halogen free thermosetting compound, SHF2 (for TYPE S1). Halogen free MUD resistant thermosetting compound, SHF MUD (for TYPE ... S1/S5), coloured grey (blue for intrinsically safe).Electrical Characteristics :Nominal ...