Cable for signalling and interlocking with polyethylene insulation, with water-blocking materials, in plastic sheath, grade

Cable for signalling and interlocking with conductive cores with nominal diameter 0,9 and 1,0 mm, with number of cores from 3 to 61, number of pairs from 3 to 30, with polyethylene insulation; with filling of core with water-blocking threads; with a belt insulation from a water-blocking tape and PET-E film; with an inner sheath from polyethylene, with a protective cover consisting of 2 steel galvanised tapes and a protective hose from polyethylene. They are intended for electrical installations of railway signalling, centralisation and blocking, fire alarms and automatics.