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

Application

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