Railway Cables

AJ-2Y(L)2YDB2Y S(H45)

Application

The cables are designed for transmission of low frequent signals up to 90 KHz through symmetric circuits in railway networks, and are suitable for laying directly into the ground or in ducts.

Standards

● Dlk 1.013.109y
● Dlk 1.013.110y

Construction

Conductors
Solid Annealed copper, 0.9 or 1.4 mm nominal diameter.

Insulation
Solid polyethylene.

Cabling Element
Four insulated conductors are twisted together to form a quad.

Stranding
Quads are helically stranded in concentric layers. Cables from 7 quads on, have two extra conductors of 0.5mm with perforated insulation (surveillance conductors).

Core Wrapping
Plastic tape(s) with overlapping.

IMoisture Barrier
One laminated sheath made of aluminium tape (0.15mm) coated with PE-Copolymer on at least one side is applied with longitudinally overlap.

Inner Sheath
Low density polyethylene.

Electrostatic Shield
One layer of helically applied copper wires (0.9, 1.2, 1.4 or 1.8mm).

Electromagnetic Shield
Two helically applied steel tapes (0.5 or 0.8mm thick, depending on required reduction factor).

Outer Sheath
Low density polyethylene.

Type Codes

AJ– outdoor cable with protection against inductive infl uences
2Y- solid PE conductor insulation
(L)2Y- inner laminated PE sheath
D- copper wire concentric screen
B- steel tape armor
2Y- outer PE sheath
S- signal cable
LG- layer stranding
H(n)- operating capacity

Ring marking of Quad

The single core is identifi ed by black ring markings:
Side Circuit 1 : a-wire, without marking
b-wire, 1 mark distance 17mm
Side Circuit 2: a-wire, 2 marks distance 34mm
b-wire, 2 marks distance 17mm

Electrical Characteristics at 20℃

Nominal Conductor Diameter
mm
0.9
1.4
Maximum Conductor Resistance
Ω/km
56.6
23.4
Minimum Insulation Resistance @500 V DC (1min)
MΩ.km
1000
1000
Maximum Conductor Capacitance @800Hz (AC)
nF/km
45
45
Maximum Capacitance Unbalance @800Hz
K1 (100% / 50% all values)
pF/km
650/150
650/150
K9-12 neighboured quads
pF/km
500/150
500/150
K9-12 over-neighboured quads
pF/km
150
150
ea1/2
pF/km
1300
1300
Miniumum Far-end Crosstalk Attenuation @90KHz
100% / 80% all values
dB/km
58/62
33/45
Maximum Attenuation @90KHz
dB/km
3.3
2.6
Dielectric Strength, conductor to conductor (DC voltage 1min)
V
3535
3535
Surveillance Conductors
Loop resistance, maximum
Ω/km
190
190
Insulation resistance
- dry cable core, minimum
MΩ.km
1000
1000
- wet cable core, maximum
KΩ.km
30
30
Optional: Nominal Reduction Factor @ 100 V/km, 16 2/3 Hz
rk 401 series
0.15
0.15
rk 501 series
0.35
0.35
rk 601 series
0.55
0.55
Operating Voltage AC/DC
V
420/600
420/600
Test Voltage 50 Hz 1 min
Core to Core
Veff
2500
2500
Core to Screen
Veff
2500
2500

Mechanical and Thermal Properties

Minimum Bending Radius: 10×OD
Temperature Range: -40℃ to +60℃ (during operation); -10℃ +60℃ (during installation)

Dimensions And Weight

Cable Code
Number of
Quads
Nominal Sheath Thickness
mm
Nominal Overall
Diameter
mm
Nominal
Weight
kg/km
Inner
Outer
0.9mm Conductor, 1.8mm Insulated Wire rk 601 Series

RS109y-2Y(L)2YDB2Y-3Q0.9-S(H45)-R6

3

1.3

1.2

21.0

650

RS109y-2Y(L)2YDB2Y-5Q0.9-S(H45)-R6

5

1.3

1.2

23.0

800

RS109y-2Y(L)2YDB2Y-10Q0.9-S(H45)-R6

10

1.3

1.2

28.0

1130

RS109y-2Y(L)2YDB2Y-20Q0.9-S(H45)-R6

20

1.3

1.2

35.0

1670

RS109y-2Y(L)2YDB2Y-30Q0.9-S(H45)-R6

30

1.3

1.2

40.0

2180

RS109y-2Y(L)2YDB2Y-40Q0.9-S(H45)-R6

40

1.3

1.2

45.0

2650

0.9mm Conductor, 1.8mm Insulated Wire rk 401 Series

RS109y-2Y(L)2YDB2Y-10Q0.9-S(H45)-R4

10

1.3

1.2

31.0

1880

RS109y-2Y(L)2YDB2Y-20Q0.9-S(H45)-R4

20

1.3

1.2

38.0

2640

RS109y-2Y(L)2YDB2Y-30Q0.9-S(H45)-R4

30

1.3

1.2

43.0

3310

RS109y-2Y(L)2YDB2Y-40Q0.9-S(H45)-R4

40

1.3

1.2

48.0

3880

1.4mm Conductor, 2.6mm Insulated Wire rk 501 Series

RS109y-2Y(L)2YDB2Y-3Q1.4-S(H45)-R5

3

1.3

1.2

25.0

1060

RS109y-2Y(L)2YDB2Y-5Q1.4-S(H45)-R5

5

1.3

1.2

29.0

1360

RS109y-2Y(L)2YDB2Y-10Q1.4-S(H45)-R5

10

1.3

1.2

37.0

2040

RS109y-2Y(L)2YDB2Y-20Q1.4-S(H45)-R5

20

1.3

1.2

47.0

3180

RS109y-2Y(L)2YDB2Y-30Q1.4-S(H45)-R5

30

1.3

1.2

54.0

4220

RS109y-2Y(L)2YDB2Y-40Q1.4-S(H45)-R5

40

1.3

1.2

61.0

5180

1.4mm Conductor, 2.6mm Insulated Wire rk 401 Series

RS109y-2Y(L)2YDB2Y-3Q1.4-S(H45)-R4

3

1.3

1.2

28.0

1650

RS109y-2Y(L)2YDB2Y-5Q1.4-S(H45)-R4

5

1.3

1.2

31.0

1950

RS109y-2Y(L)2YDB2Y-10Q1.4-S(H45)-R4

10

1.3

1.2

39.0

2880

RS109y-2Y(L)2YDB2Y-20Q1.4-S(H45)-R4

20

1.3

1.2

49.0

4180

RS109y-2Y(L)2YDB2Y-30Q1.4-S(H45)-R4

30

1.3

1.2

56.0

5330

RS109y-2Y(L)2YDB2Y-40Q1.4-S(H45)-R4

40

1.3

1.2

63.0

6430