 |
||||||||||
 |
Railway Cables |  |
||||||||
|
||||||||||
|
||||||||||
Railway Cables
RAILSIG/RAILOPTICS/RAILDATA/RAILCOX Railway Telecom Cables
G7622 Trackside Communications Cables
Application
G7622 Trackside Communications Cables are designed for installation in trackside bracket runs and for use
within railway equipment rooms within open locations (type 1) or in subsurface tunnels and underground
locations (type 2).
Construction
Conductors： Solid plain copper, 0.63/0.9 mm nominal diameter.
Insulation： Cellular polyethylene.
Cabling Element： Four insulated conductors are twisted together to form a quad.
Stranding： Conductors are helically stranded in concentric layers.
Core Wrapping： Plastic tape (s) with overlapping.
Moisture Barrier： One laminated sheath made of aluminium tape (0.15mm thick) coated with PE-Copolymer on
at least one side is applied with longitudinally overlap.
Outer Sheath： LSZH sheath, coloured violet.
Optional
Type 1 Cables: For type 1 cables, additional foil (at least one polyester tape) and PVC sheath are applied over
the LSZH sheath. (VDE Code: A-02Y(L)HY)
Armoured Cables: Corrugated steel tape armour is applied with an overlap over LSZH sheath. An outer LSZH
sheath is applied over the armour. (VDE Code: A-02Y(L)H(SR)H)
Reference Standards
LUL Spec G7622 A1 type 1 (for PVC sheath)
LUL Spec G7622 A1 type 2 (for LSZH sheath)
Electrical Characteristics at 20℃
| Nominal Conductor Diameter | mm | 0.63 | 0.9 |
|---|---|---|---|
| Maximum Conductor Resistance | |||
| Average Value | Ω/km | 57.5 | 28 |
| Individual Value | Ω/km | 59 | 29 |
| Minimum Insulation Resistance @500 V DC | MΩ.km | 1500 | 1500 |
| Maximum Average Mutual Capacitance | nF/km | 59 | 59 |
| Maximum Average Capacitance Unbalance | |||
| Between pairs in same quad | pF/460m | 50 | 50 |
| Between pairs (centre or in any layer) | pF/460m | 30 | 30 |
| Between any pairs and earth | pF/460m | 200 | 200 |
| Between phantom and pairs in same quad | pF/460m | 300 | 300 |
Mechanical and Thermal Properties
Minimum Bending Radius: 7.5×OD (unarmoured); 10×OD (armoured)
Temperature Range: -40℃ to +70℃ (during operation);
-10℃ to +50℃ (during installation)
Core Identifi cation
Quad colours in centre and even layers
| Position of Quad in Layer | Centre and Even Layers | Quad Whipping Colours | |||
|---|---|---|---|---|---|
| A Wire | B Wire | C Wire | D Wire | ||
| 1st Quad (Marker) | ORANGE | WHITE | BLUE | GREY | WHITE/ORANGE |
| Even Quads | RED | WHITE | VIOLET | YELLOW | WHITE |
| Odd Quads | BROWN | WHITE | GREEN | GREY | WHITE |
| Last Quad | ORANGE | WHITE | RED | GREEN | WHITE/ORANGE |
Quad colours in odd layers
| Position of Quad in Layer | Centre and Even Layers | Quad Whipping Colours | |||
|---|---|---|---|---|---|
| A Wire | B Wire | C Wire | D Wire | ||
| 1st Quad (Marker) | ORANGE | BLACK | BLUE | GREY | WHITE/ORANGE |
| Even Quads | RED | BLACK | VIOLET | YELLOW | WHITE |
| Odd Quads | BROWN | BLACK | GREEN | GREY | WHITE |
| Last Quad | ORANGE | BLACK | RED | GREEN | WHITE/ORANGE |
Make-up of cable
| Number of Pairs | Number of Quads in centre and successive layers | ||||||
|---|---|---|---|---|---|---|---|
| Centre | 1st Layer | 2ndLayer | 3th Layer | 4th Layer | 5th Layer | 6th Layer | |
| 8 | 4 | - | - | - | - | - | - |
| 14 | 1 | 6 | - | - | - | - | - |
| 20 | 2 | 8 | - | - | - | - | - |
| 28 | 4 | 10 | - | - | - | - | - |
| 38 | 1 | 6 | 12 | - | - | - | - |
| 54 | 3 | 9 | 15 | - | - | - | - |
| 74 | 1 | 6 | 12 | 18 | - | - | - |
| 104 | 4 | 10 | 16 | 22 | - | - | - |
| 160 | 4 | 10 | 16 | 22 | 28 | - | - |
| 228 | 4 | 10 | 16 | 22 | 28 | 34 | - |
| 308 | 4 | 10 | 16 | 22 | 28 | 34 | 40 |
Dimensions And Weight
G7622 A1 Type 2 Cables
| Cable Code | No. of pairs | Minimum Sheath Thickness mm |
Nominal Overall Diameter mm |
Nominal Weight kg/km |
|---|---|---|---|---|
| 0.63mm Conductor, 1.0mm Insulated Wire | ||||
| RS7622A1/T2-02Y(L)H-8P0.63 | 8 | 2.5 | 14.5 | 190 |
| RS7622A1/T2-02Y(L)H-14P0.63 | 14 | 2.5 | 16.0 | 240 |
| RS7622A1/T2-02Y(L)H-20P0.63 | 20 | 2.5 | 17.5 | 310 |
| RS7622A1/T2-02Y(L)H-28P0.63 | 28 | 2.5 | 19.5 | 380 |
| RS7622A1/T2-02Y(L)H-38P0.63 | 38 | 2.5 | 21.5 | 470 |
| RS7622A1/T2-02Y(L)H-54P0.63 | 54 | 2.5 | 23.5 | 610 |
| RS7622A1/T2-02Y(L)H-74P0.63 | 74 | 2.5 | 25.5 | 780 |
| RS7622A1/T2-02Y(L)H-104P0.63 | 104 | 2.5 | 29.0 | 1020 |
| RS7622A1/T2-02Y(L)H-160P0.63 | 160 | 2.5 | 34.0 | 1498 |
| RS7622A1/T2-02Y(L)H-228P0.63 | 228 | 2.5 | 39.0 | 1993 |
| RS7622A1/T2-02Y(L)H-308P0.63 | 308 | 2.5 | 43.5 | 2670 |
| 0.9mm Conductor, 1.5mm Insulated Wire | ||||
| RS7622A1/T2-02Y(L)H-8P0.9 | 8 | 2.5 | 17.5 | 280 |
| RS7622A1/T2-02Y(L)H-14P0.9 | 14 | 2.5 | 20.0 | 380 |
| RS7622A1/T2-02Y(L)H-20P0.9 | 20 | 2.5 | 22.5 | 500 |
| RS7622A1/T2-02Y(L)H-28P0.9 | 28 | 2.5 | 24.5 | 630 |
| RS7622A1/T2-02Y(L)H-38P0.9 | 38 | 2.5 | 25.5 | 790 |
| RS7622A1/T2-02Y(L)H-54P0.9 | 54 | 2.5 | 29.0 | 1060 |
| RS7622A1/T2-02Y(L)H-74P0.9 | 74 | 2.5 | 32.5 | 1370 |
| RS7622A1/T2-02Y(L)H-108P0.9 | 108 | 2.5 | 37.5 | 1830 |
G7622 A1 Type 1 Cables
| Cable Code | No. of pairs | Minimum Sheath Thickness mm |
Nominal Overall Diameter mm |
Nominal Weight kg/km |
|
|---|---|---|---|---|---|
| 0.63mm Conductor, 1.0mm Insulated Wire | |||||
| RS7622A1/T1-02Y(L)HY-8P0.63 | 8 | 2.5 | 3.0 | 20.5 | 330 |
| RS7622A1/T1-02Y(L)HY-14P0.63 | 14 | 2.5 | 3.0 | 22.0 | 390 |
| RS7622A1/T1-02Y(L)HY-20P0.63 | 20 | 2.5 | 3.0 | 23.5 | 480 |
| RS7622A1/T1-02Y(L)HY-28P0.63 | 28 | 2.5 | 3.0 | 25.5 | 560 |
| RS7622A1/T1-02Y(L)HY-38P0.63 | 38 | 2.5 | 3.0 | 27.5 | 660 |
| RS7622A1/T1-02Y(L)HY-54P0.63 | 54 | 2.5 | 3.0 | 29.5 | 830 |
| RS7622A1/T1-02Y(L)HY-74P0.63 | 74 | 2.5 | 3.0 | 31.5 | 1010 |
| RS7622A1/T1-02Y(L)HY-104P0.63 | 104 | 2.5 | 3.0 | 35.0 | 1290 |
| 0.9mm Conductor, 1.5mm Insulated Wire | |||||
| RS7622A1/T1-02Y(L)HY-8P0.9 | 8 | 2.5 | 3.0 | 23.5 | 440 |
| RS7622A1/T1-02Y(L)HY-14P0.9 | 14 | 2.5 | 3.0 | 26.0 | 550 |
| RS7622A1/T1-02Y(L)HY-20P0.9 | 20 | 2.5 | 3.0 | 28.5 | 700 |
| RS7622A1/T1-02Y(L)HY-28P0.9 | 28 | 2.5 | 3.0 | 30.5 | 840 |
| RS7622A1/T1-02Y(L)HY-38P0.9 | 38 | 2.5 | 3.0 | 31.5 | 1020 |
| RS7622A1/T1-02Y(L)HY-54P0.9 | 54 | 2.5 | 3.0 | 35.0 | 1310 |
| RS7622A1/T1-02Y(L)HY-74P0.9 | 74 | 2.5 | 3.0 | 38.5 | 1650 |
| RS7622A1/T1-02Y(L)HY-104P0.9 | 104 | 2.5 | 3.0 | 43.5 | 2160 |
Armoured G7622 A1 Type 2 Cables
| Cable Code | No. of pairs | Minimum Sheath Thickness mm |
Nominal Overall Diameter mm |
Nominal Weight kg/km |
|
|---|---|---|---|---|---|
| Inner | Outer | ||||
| 0.63mm Conductor, 1.0mm Insulated Wire | |||||
| RS7622A1/T2-02Y(L)H(SR)H-8P0.63 | 8 | 1.2 | 2.5 | 18.2 | 430 |
| RS7622A1/T2-02Y(L)H(SR)H-14P0.63 | 14 | 1.2 | 2.5 | 19.0 | 500 |
| RS7622A1/T2-02Y(L)H(SR)H-20P0.63 | 20 | 1.2 | 2.5 | 21.2 | 600 |
| RS7622A1/T2-02Y(L)H(SR)H-28P0.63 | 28 | 1.2 | 2.5 | 22.6 | 690 |
| RS7622A1/T2-02Y(L)H(SR)H-38P0.63 | 38 | 1.2 | 2.5 | 24.2 | 810 |
| RS7622A1/T2-02Y(L)H(SR)H-54P0.63 | 54 | 1.2 | 2.5 | 26.7 | 980 |
| RS7622A1/T2-02Y(L)H(SR)H-74P0.63 | 74 | 1.2 | 2.5 | 29.2 | 1190 |
| RS7622A1/T2-02Y(L)H(SR)H-104P0.63 | 104 | 1.2 | 2.5 | 32.6 | 1480 |
Note: The parameters listed above are nominal values as per cable standards. Actual values may vary due to material and manufacturing process variations. For precise specifications or customized requirements, please contact us for further information