... sheathed power cableFor laying indoors,in tunnels and in ducts,unable to bear extarnal mechanical forces.2222PVC insulated & ... sheathed power cableFor laying indoors,in tunnels and in ducts,unable to bear extarnal mechanical forces.2222flame resistance ... PVC insulated cableWith fixed wiring, a fire-retardantflame resistance PVC insulated cableWith fixed wiring, aflame-retardantfire resistance PVC ...