PTYA23 (22) Railway Signal Cable
Quad-twisted pairs or insulated wires twisted together to form the cable core, cable core wrapped by polyester tape, a tow-side

Type: PTYA23 (22)
Size: 4-61 cores
Executive Standard: TB/T 2476. 1~4-93
Referred Standard: IEC, ASTM, BS

Features:
1) Structure: Quad-twisted pairs or insulated wires twisted together
to form the cable core, cable core wrapped by polyester tape, a
tow-side plastic coated aluminum tape (PAP) longitudinally applied
as shielding layer, inner sheath. Tow-side plastic coated steel tape
(PSP) applied as armoring layer, PE outer sheath
2) Installation temperature: Not lower than -5^oC
3) Operation temperature: Operation environmental temperature: -30^oC~+60^oC
4) Long term operation temperature: ≤70^oC
5) Min. bending radius: Not less than 10 times of cable outer diameter
for Un-armored cable, and not less than 15 times of cable outer
diameter for armored cable
6) Usage: The standard cable is used for transmitting railway singles,
audio frequency signals with fixed value of AC 500V or DC 1000V. Or
applied as fixed lay of some auto mechanism
7) Application mode: direct buried, conduit

Inner packing: Delivery on wooden-iron composite drums, strong enough
suitable for handling, long distance shipment and storage

Outer packing: Wooden battens to be used to protect the drummed cable
or even a metal tape secured outside