Concentric and Split Concentric Cable Description
The choice between concentric and split-concentric cables depends on the type of power supply: concentric cables are used for TN-C-S power supplies, while split-concentric cables are used for TN-S power supplies. Both types have a central insulated phase conductor with a PVC (polyvinyl chloride) or LSZH (low-smoke zero-halogen) outer sheath.
Concentric-concentric (CNE) cables have a central phase conductor insulated with cross-linked polyethylene (XLPE) and concentric layers of bare copper wire as neutral and ground conductors. They are primarily used for a single-phase power supply, including connection to the household power supply.
Split concentric cable (SNE) has a separate concentric layer. It contains an insulated neutral conductor and a bare ground conductor, separated by material such as PVC rope and bound with transparent polyester tape. It is used when the power supply requires separate protective earth and neutral conductors, such as in older installations or for sub-mains distribution.
Concentric and Split Concentric Cable Construction
| Aluminium Concentric BS 7870 PVC Cable | Copper LSZH Split Concentric BS7870 | Aluminium Concentric BS 7870 LSZH Cable | Aluminium Split Concentric BS 7870 PVC Cable | Aluminium Split Concentric BS 7870 LSZH Cable | Copper Concentric BS 7870 PVC Cable | Copper Split Concentric BS 7870 PVC Cable | |
|---|---|---|---|---|---|---|---|
| Conductor | Class 1 Solid Aluminium | Class 2 stranded Copper | Class 1 Solid Aluminium | Class 2 Stranded Copper | |||
| Insulation | XLPE (Cross-Linked Polyethylene) | ||||||
| Concentric Conductor | Single Layer of Plain Copper Wires | - | Single Layer of Plain Copper Wires | - | Single Layer of Plain Copper Wires | - | |
| Neutral Conductor | - | Plain Copper Wires covered by a Polymeric Compound | - | Plain Copper Wires covered by a Polymeric Compound | - | Plain Copper Wires covered by a Polymeric Compound | |
| Earth Continuity Conductor | - | Plain Copper wires | - | Plain Copper Wires | - | Plain Copper Wires | |
| String Separator | - | Non-Hygroscopic | - | Non-Hygroscopic | - | Non-Hygroscopic | |
| Sheath | PVC (Polyvinyl Chloride) | LSZH (Low Smoke Zero Halogen) | PVC (Polyvinyl Chloride) | LSZH (Low Smoke Zero Halogen) | PVC (Polyvinyl Chloride) | ||
Concentric and Split Concentric Cable Characteristics
| Aluminium Concentric BS 7870 PVC Cable | Copper LSZH Split Concentric BS7870 | Aluminium Concentric BS 7870 LSZH Cable | Aluminium Split Concentric BS 7870 PVC Cable | Aluminium Split Concentric BS 7870 LSZH Cable | Copper Concentric BS 7870 PVC Cable | Copper Split Concentric BS 7870 PVC Cable | |
|---|---|---|---|---|---|---|---|
| Voltage | 0.6/1kV | ||||||
| Temperature Rating | -15°C to +70°C | ||||||
| Minimum Bending Radius | 8 x overall diameter | 15 x overall diameter | 8 x overall diameter | ||||
- Aluminium Concentric BS 7870 PVC Cable
- Copper LSZH Split Concentric BS7870
- Aluminium Concentric BS 7870 LSZH Cable
- Aluminium Split Concentric BS 7870 PVC Cable
- Aluminium Split Concentric BS 7870 LSZH Cable
- Copper Concentric BS 7870 PVC Cable
- Copper Split Concentric BS 7870 PVC Cable
| NO. OF CORES | NOMINAL CROSS SECTIONAL AREA mm² | NOMINAL OVERALL DIAMETER mm | NOMINAL WEIGHT kg/km |
|---|---|---|---|
| 1 | 25 | 13 | 300 |
| 1 | 35 | 14 | 390 |
| 3 | 25 | 23 | 650 |
| 3 | 35 | 25 | 820 |
| NO. OF CORES | NOMINAL CROSS SECTIONAL AREA mm² | NOMINAL THICKNESS OF SHEATH mm | NOMINAL OVERALL DIAMETER mm | NOMINAL WEIGHT kg/km |
|---|---|---|---|---|
| 1 | 4 | 1.4 | 11 | 230 |
| 1 | 16 | 1.4 | 16 | 620 |
| 1 | 25 | 1.5 | 19 | 855 |
| 1 | 35 | 1.6 | 23 | 1220 |
| NO. OF CORES | NOMINAL CROSS SECTIONAL AREA mm² | NOMINAL OVERALL DIAMETER mm | NOMINAL WEIGHT kg/km |
|---|---|---|---|
| 1 | 25 | 13 | 300 |
| 1 | 35 | 14 | 390 |
| 3 | 25 | 23 | 610 |
| 3 | 35 | 25 | 800 |
| NO. OF CORES | NOMINAL CROSS SECTIONAL AREA mm² | NOMINAL OVERALL DIAMETER mm | NOMINAL WEIGHT kg/km |
|---|---|---|---|
| 1 | 25 | 15 | 490 |
| 1 | 35 | 16 | 610 |
| 3 | 25 | 23.5 | 830 |
| 3 | 35 | 26 | 1030 |
| NO. OF CORES | NOMINAL CROSS SECTIONAL AREA mm² | NOMINAL OVERALL DIAMETER mm | NOMINAL WEIGHT kg/km |
|---|---|---|---|
| 1 | 25 | 15 | 490 |
| 1 | 35 | 16 | 610 |
| 3 | 25 | 23.5 | 830 |
| 3 | 35 | 26 | 1030 |
| NO. OF CORES | NOMINAL CROSS SECTIONAL AREA mm² | NOMINAL OVERALL DIAMETER mm | NOMINAL WEIGHT kg/km |
|---|---|---|---|
| 1 | 4 | 8.5 | 140 |
| 1 | 16 | 12 | 370 |
| 1 | 25 | 14 | 550 |
| NO. OF CORES | NOMINAL CROSS SECTIONAL AREA mm² | NOMINAL OVERALL DIAMETER mm | NOMINAL WEIGHT kg/km |
|---|---|---|---|
| 1 | 4 | 10 | 190 |
| 1 | 16 | 14 | 530 |
| 1 | 25 | 16 | 710 |
| 3 | 35 | 28.5 | 1900 |
Why Huadong Cable
Our vision is to become an internationally renowned brand in the field of cables; customer satisfaction, employee promotion, and corporate development are our service tenets; high standards, globalization, and building an international brand are our business philosophy.
About HuaDong
Henan Huadong Cable Co., Ltd. was founded in 1999 which is a joint-stock national high-tech enterprise integrating scientific research, industry and trade. Huadong Cable is deeply integrated into the "Belt and Road" construction and exports to more than 130 countries around the world, including Europe, South America, North America, the Middle East, Africa, Asia, and Oceania.
HuaDong Technology
Huadong Cable focuses on technology research and development which has 60 professional personnel with senior professional titles, and has more than 100 invention and utility model patents. Huadong has a team of experienced technical engineers to ensure the quality of cables.
Main Products
Our main products : marine cables, power cables, overhead cables, fireproof cables, low-smoke halogen-free cables, rubber cables, high temperature resistant cables, instrument and control cables, solar cables and other products.
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