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Wires for Railway Vehicles and Trolley Buses (PPSRVM)

High-frequency communication cables ZKP, ZKPB, ZKPz, ZKPBz. TU16-505.233-96
These cables are designed for areal communication cable lines of K-60 transmission systems (for frequencies up to 250 KHz). They provide distant feed transmission at up to 690 V AC, 50 Hz.

• ZKP cables are sheathed with light-stabilized polyethylene, without shielding.
• ZKPB cables are sheathed with light-stabilized polyethylene, with B type shielding.
• ZKPz cables are sheathed with light-stabilized polyethylene, without shielding. The core is filled with hydrophobic filler.
• ZKPBz cables are sheathed with light-stabilized polyethylene, with B type shielding. The core is filled with hydrophobic filler.

Four copper solid conductors 1.2 mm in diameter are insulated with polyethylene and twisted into a spiral four around a polyethylene cord. The twist is wrapped with a blend of polyethylene and butyl rubber and shielded with copper, aluminium or aluminium polyethylene films.

Cable type	Outer diameter of the cable, mm, within
ZKP, ZKPz	18,2
ZKPB, ZKPBz	30,0

Cable type	Shield	Estimated weight of 1 km of the cable, kg
ZKP, ZKPz	copper	309
	aluminium	277
ZKPB, ZKPBz	copper	960
	aluminium	918

The cables must be installed at a temperature over -10 °C.
Operational ambient temperature must be from -40° to 50 °C.
Service life is 20 years.