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Railway Cables |  |
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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
2YDB2Y.jpg)
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 |