There is no denying that copper is the most preferred choice for electrical transmission and wiring systems. It is highly conductive and can be easily drawn into wires. Over the years, many innovations have taken place in the wiring industry. When the overhead power lines were bare, they were insulated and designed into aerial bunched cables. When the overhead transmission was not sufficient, an underground layout was invented. In this tradition, the copper armoured cable manufacturers contribute too with their special designs. Shree Chanderprabhu Wire Industries makes these cables for heavy-duty, challenging conditions. In this blog, we are going to throw light upon the construction of armoured copper cables and what makes them advantageous over unarmoured cables.
Construction of Copper Armourmed Cables
Copper armoured cables are constructed uniquely using standard methods, with some additions for beneficial features. Here is the step-by-step construction procedure:
- The copper conductor is drawn in solid or stranded form. The electrolytic grade copper is considered best due to its pure quality.
- Each wire is insulated by PVC or XLPE, depending on the application. XLPE is used for much harsher conditions like UV exposure and temperature fluctuations.
- The inner sheet is wrapped around the wires to enclose them and create a boundary between the metal armour and wires.
- The metal layer of armour, usually galvanized steel wire strips or deep drawn layering, is applied.
- An outer layer of insulating sheath is wrapped around the whole assembly.
Advantages of Copper Armoured Cables
Increased strength
The armouring layer increases the strength and stability of the cable without making it too rigid. This protection layer is to withstand the heavy load conditions of the underground. Crushing, impact and abrasive forces are dealt with by the unbreakable strength of these cables.
Reduces Electromagnetic Interference
When the cables are bunched together, there is a chance of electromagnetic interference (EMI). But the right copper armoured cable manufacturers provide enough resistance to avoid EMI and ensure efficient transmission and a current path.
Vibration Resistance
These cables are used in industrial machinery where high vibrational waves run across. The armouring can effectively withstand these vibrations.
Protection Against Rodents
The rodents in the underground can damage the cables, but the layer of solid metal also protects them from this damage.
Moisture Resistance
Underground is often wet due to a high amount of moisture. The multiple layers of insulation and armour can withstand this high level of moisture to increase longevity.
Conclusion
Copper armoured cable manufacturers make highly effective cables for underground, industrial settings and other similar harsh conditions. These cables offer better features than unarmoured cables by enhancing the strength, resistance and protection against other damaging elements. At SCPL Cables, we add fire protection and zero smoke features in the insulation layers so that the overall design is exceptional.
