Loading Port:Shanghai
Payment Terms:TT or LC
Min Order Qty:1000 m
Supply Capability:1000000 m/month
Railway Digital Signal Cable
Product Description
Application
Cable is available for railway signal system connecting equipments and control facilities, could carry out the transportation of control information and electronic at 1MHz (analog signal), 2Mbit/s(digital signal), rated AC voltage 750V or DC 1100V and below.
Executive Standard
TB/T3100-2004
Operational Performances:
Ambient temperature of cable is -40~ +60°C,installation temperature no less than-10°C
Long-term working temperature no more than +70°C,
Cable allowed bending radius: 10 times of O.D. for non-armored cable, 15 times of O.D. for armored cable.
Model and Structure
Model | Name | Installation requirements | Structure(Core No.) |
SPTYW 03 | Skin-foam-skin physical foaming PO insulated PE nutter sheathed digital signal cable | Pipeline, hanging | 4, 6, 8, 9,12, 14, 16, 19, 21,24, 28, 30, 33,37, 42, 44,48, 52, 56,61 |
SPTYW23 | Skin-foam-skin physical foaming PO insulated double steel tape armored PE outer sheathed digital signal cable | Direct bury, pipeline, hanging | |
SPTYWA23 | Skin-foam-skin physical foaming PO insulated synthesis sheathed PE nutter double steel tape armored sheathed digital signal cable | ||
SPTYWL23 | Skin-foam-skin physical foaming PO insulated A1 sheathed double steel tape armored PE nutter sheathed digital signal cable |
Product Electrical Characteristics
No. | Item | Unit | Index | Testing method | Reduction formula | |
1 1.1 1.2 | DC resistance at 20°C Single conductor DC resistance Working pair of conductor resistance imbalance | Ω/km % | 22.5±1.0≤1 | GB/T3048.4 | L/1000 - | |
2 | DC 500V 20°C Insulation resistance DC 500V 20°C Single insulation core to other insulation core connected with screening and metal | MΩ·km | ≥10000 | GB/T3048. 6 | 1000/L | |
3 3.1 3.2 | 50Hz 2min Insulation dielectric strength Within cores All cores connect together (or each core) double screening and metal sheath | V | 1000 2000 | GB/T3048. 8 | - | |
4 4.1 4.2 4.3 | 0.8~1.0kHz Electricity capacity 4-core group working capacity Double-core group working capacity Single insulation core connected to earth and other insulation core capacity | nF/km | 28±3 35±4 ≤70 | GB/T5441.2 | L/1000 | |
5 5.1 5.2 5.3 | 0.8~1.0kHz Coefficient of condenser coupling K1 Average Max Max K9-K12 Average Max Max 4-core cable K as the max index | pF/km | ≤81 330 ≤119 230 | GB/T5441. 3 | √L/1000 √L/1000 √L/1000 √L/1000 | |
6 6.1 6.2 6.3 | 0.8~1.0kHz Capacity imbalance with nutter space ea1,ea2 Average Max Max 4-core cable index as max A11ow 10% plates ea1,ea2 ≤1294pF/km | pF/km | ≤330 800 | GB/T5441.3 | L/1000 | |
7 7.1 7.2 | Attenuation near the end of the circuit 150kHz Within the group Between the group | dB/km | ≥51 ≥55 | GB/T5441.6 | -10lg(L/ 1000) | |
1000kHz 300M or above Within the group Between the group | dB/km | ≥37 ≥42 | GB/T5441.6 | - | ||
8 8.1 8.2 | Defence end of the circuit 150kHz Within the group Between the group 1000kHz Within the group Between the group | dB/km | ≥52 ≥62 ≥39 ≥49 | GB/T5441.6 | -10lg(L/ 1000) | |
No. | Item | Unit | Index | Testing method | Reduction formula | |
9 | Characteristic impedance 20°C 0.55kHz 0. 85kHz 1.7kHz 2.0kHz 2.3kHz | Ω | 675±68 550±33 396±24 367±22 343±21 325±20 163±17 155±16 | GB/T5441. 7 | - | |
10 | Attenuation 20°C 0.55kHz 0. 85kHz 1.7kHz 2.0kHz 2.3kHz 2.6kHz 150kHz 1000kHz | dB/km | ≤0.45 ≤0.55 ≤0.70 ≤0.75 ≤0.80 ≤0.83 ≤3.5 ≤9.0 | GB/T5441.7 | L/ 1000 | |
11 | Phase angle 0.55 /0.85k/1.7/2.0/2.3/2.6kHz | o | -43±4.3 -42±4.2 -39±3.9 -38±3.8 -37±3.7 -36±3.6 | GB/T5441.7 | - | |
12 | (50H z)Ideal shielding coefficient 50V/km~200V/km | 0.8 Synthesis sheath | 0.2AL sheath | GB/T5441.9 | - | |
Progress
