Flexible Stranded Copper Conductors and Dropper Wires
Our flexible stranded copper conductors, often referred to as dropper wire, are Network rail approved and they are manufactured in accordance with drawing numbers 1/148/369 and 148/070/998.
Dropper Wire Specification
As part of a rail overhead power supply system, these 7/7/0.51mm copper magnesium (CuMg) and 19/7/0.71mm flexible stranded copper conductors act as the dropper wire providing physical support for the contact wire. It connects the catenary wire at regular intervals to the contact wire and can also support an auxiliary wire.
Flexible stranded copper conductor - PADS references
| Dropper Wire | Drawing numbers | PADS reference |
|---|---|---|
| 7/7/0.51mm | 1/148/369 | 5000m: 0091/030331 500m: 0091/030332 |
| 19/7/0.71mm | 148/070/998 | 0091/010271 |
Additionally we supply a stainless steel solid dropper wire which can also be used in overhead electrification works where the flexible stranded copper is not appropriate for the installation or environment.
Stainless steel dropper wire - PADS reference
| Dropper Wire | Drawing numbers | PADS reference |
|---|---|---|
| 4mm solid | 148/039/998 | 0091/010324 |
Construction Table
Railway cables - 7/7/0.51mm Copper Flexible Stranded Conductor
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19/7/0.71 Stranded Copper Conductor
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Stainless Steel Dropper Wire
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|---|---|---|---|
| CONDUCTOR | Class 5 Flexible Stranded Copper Magnesium (CuMg) | Copper | Stainless Steel |
Flexible Stranded Copper Conductors and Dropper Wires
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| Product name | Part No | Cores | Nominal cross-sectional area (mm²) | Type | Length (m) | |
|---|---|---|---|---|---|---|
| Railway cables - 7/7/0.51mm Copper Flexible Stranded Conductor | 91/030331 | n/a | 10mm² | 500m | ||
| Railway cables - 7/7/0.51mm Copper Flexible Stranded Conductor | 91/030332 | n/a | 10mm² | 5000m | ||
| 19/7/0.71 Stranded Copper Conductor | 91/010271 | 1 | 54.14mm² | n/a | ||
| Stainless Steel Dropper Wire | 91/010324 | 1 | 4mm² | n/a |