... radius(r): Unarmoured cable: R≥ 6D (D: Outer diameter of the cable);Armoured or copper-tape screened cable: R≥ 12D; Shielded flexible cable: R≥ 6DProduction ... sheathed control cableFor laying indoors,in tunnels,or cable trench,or direct in ground.KVVPKYJVPZR-KVVPZR- ... tunnels,or cable trench, direct in ground,stationary places needing shieldKVVP2KYJVP2ZR-KVVP2ZR-KYJVP2PVC sheathed copper tape wrapped ...