Railway Signal Cable

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Usage
It is used in rated voltage up to AC 500V or DC 1000V control circuit as railway signal transmission and communication,audio signal or automatism signal,the multi-sheath railway signal cable has screen character,which is suitable for laying in electrified railways or others field under strong Interference.
Operating Characteristics:
1.1 The ambient temperature :-40 deg.~+60 deg.
1.2 the operating temperature should not be higher than +70deg.
1.3 The ambient temperature under installation ,PVC sheath cable should not be below 0 deg.,PE sheath cable should not be below -20 deg.
1.4 mini bending radius: non-armoured cable>=10 times of the cable diameter armoured cable>=12 times of the cable diameter
1.5 multi-sheath train signal cable screening factors ≤0.8 aluminium sheath train signal cable screening factors ≤0.3

Types and Description

TYPES	Name	Installation Scope	Specification (core)
PTYV	PE insulation,PVC sheath,railway signal cable	For laying in tunnel, cable trench, or direct in ground, able to bear certain external mechanical forces	4、6、8、9、 12、14、16、19、21、24、28、30、33、37、42、44、48、52、56、61
PTYY	PE Insulation,PE sheath railway signal cable
PTY22	PE insualtion,steel tape armour,PVC outer-sheath railway signal cable	For laying in tunnel, cable trench, or direct in ground, able to bear larger external mechanical forces
PTY23	PE insulation steel tape armour PE outer-sheath railway signal cable
PTYA22	PE insulation comprehensive sheath steel tape armour PVC outer-sheath railway signal cable
PTYA23	PE insulation comprehensive sheath steel tape armour PE outer-sheath railway signal cable
PTYL22	PE insulation ,Aluminium sheath ,steel tape armour, PVC outer-sheath railway signal cable
PTYL23	PE insulation, aluminium sheath ,steel tape armour, PE outer-sheath railway signal cable

Types Code Instruction

Code	Instruction	Code	Instruction
PT	Railway Signal Cable	22	Double Steel Tape Armour PVC Outer-sheath
SPT	Railway digital signaling cable	23	Double Steel Tape Armour PE Outer-sheath
YW	physically foamed skin-foam-skin polyolefin insultaion	03	non-armour PE Outer-sheath
Y	polyolefin insultaion or Sheath	H	Cold Resistant
P	Inner Shield (Digital Cable)	DWZR	low somke halogen free &flame retardant
P	Copper wire braided sreen (Data transmission cable for balise)	-FBY	termite resistant type
L	Aluminium Sheath	-GP	high-performance shielding type
A	Comprehensive Sheath
PJ	Axle Counter Signaling Cable
HE	Long distance symmetric cable
LEU.BS	Data transmission cable for balise

Main Cable Technical Properties

Ser.No.	Item	Unit	Index	Conversion Formula
1 1.1 1.2	DC resistant 20℃ DC resistant for each conductor Resistance unbalance of conductor working pair	Ω/km	≤23.5 ≤2%	L/1000
2	Insulation resistant	MΩ·km	≥3000	1000/L
3 3.1 3.2 3.3	Capacitance Twisted pair working Capacitance Star quad working Capacitance Capacitance between each insulated wire and other insulated wire connecting to ground	nF/km	≤70 ≤50 ≤100	L/1000
4 4.1 4.2	Capacitance coupling coefficient K₁ Average value Maximum value K₉～K₁₂ Average value Maximum value For 4-core quad, k1 is the maximum value	pF/500m	≤100 ≤330 ≤120 ≤230	L/500 L/500
5	Capacitance unbalance to earth e_a1 e_a2 Average Value Maximum Value br>For 4-core cable, e_a1、e_a2are the maximum value	nF/500m	≤330 ≤1300	L/500
6 6.1 6.2	Dielectric voltage withstand Time of Duration 2min Between Cores Cores versus others earthing cores	Ｖ	1000 1800	——

Cable OuterDiameter and Weight

Specifiaction	PTYV、PTYY		PTY22、PTY23
Specifiaction	OuterDimeter	Weight (kg/km )	OuterDimeter(mm)	kg/km< Weight/div>
4 6 8 9 12 14 16 19 21 24 28 30 33 37 42 44 48 52 56 61	8.8 11.8 12.8 12.8 14.5 14.5 16.1 16.1 16.1 17.8 19.8 19.8 19.8 22.1 23.0 23.0 25.1 25.1 26.3 26.3	76 112 137 147 185 204 232 261 280 319 365 385 414 464 518 537 588 627 672 720	12.2 15.2 16.2 16.2 19.0 19.0 20.6 20.6 20.6 22.3 23.7 23.7 23.7 26.0 26.9 26.9 29.2 29.2 31.6 31.6	115 235 270 280 335 354 397 426 446 502 563 582 611 684 747 766 839 878 1207 1255

Specification	PTYA22、PTYA23		PTYL22、PTYL23
Specification	OuterDimeter(mm)	Weight (kg/km)	Outer Diameter (mm)	Weight(kg/km)
4 6 8 9 12 14 16 19 21 24 28 30 33 37 42 44 48 52 56 61	15.7 17.6 18.6 18.6 20.3 20.3 21.9 21.9 21.9 23.6 25.0 25.0 25.0 27.3 28.4 28.4 31.9 31.9 33.1 33.1	259 295 333 342 403 422 467 495 515 577 642 661 690 769 834 854 948 987 1331 1379	21.8 24.0 24.0 24.0 26.0 26.0 28.2 28.2 28.2 31.4 31.4 31.4 31.4 34.6 34.6 34.6 36.6 36.6 38.8 38.8	561 666 731 741 848 867 928 956 976 1091 1171 1190 1219 1383 1469 1488 1618 1656 1736 1784

able Structure Drawing

Delivery length

Cable with length 500m and over do not less than 50% of total delivery length in Order, and with length less than 50m~250m not more than 5% of total delivery length.
Tolerance of metering length do not exceed ±0.5%.

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Railway Signal Cable

Railway Signal Cable

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