armoured cables have gained popularity in the construction and engineering industry for their robustness, durability, and reliability. They are designed to withstand harsh environments and extreme temperatures, making them a reliable choice for underground wiring and outdoor installations. armoured cables are widely used in power distribution systems, industrial applications, and offshore oil rigs.
armoured cables are special types of electrical cables that have an additional protective layer of steel wires or aluminum tapes that is wrapped around the insulating layer of the cable. This metallic layer provides an extra layer of protection to the cable against external mechanical and environmental stress. The armoured layer also acts as an electromagnetic shield, preventing electrical interference and noise from entering or escaping the cable.
There are several types of armoured cables available in the market today. Let’s take a look at each of them.
Steel wire armoured cable (SWA)
SWA is a popular type of armoured cable that has a layer of galvanized steel wires wrapped around the insulation layer of the cable. The steel wire layer provides excellent mechanical protection and can withstand external pressure, impact, and abrasion. SWA cables are commonly used in power distribution systems, underground wiring, and industrial facilities.
Aluminum wire armoured cable (AWA)
AWA is similar to SWA, but instead of steel wires, it has a layer of aluminum tapes that are wrapped around the insulation layer. AWA cables have a lighter weight than SWA, making them a preferred choice for offshore oil rigs and marine installations.
Lead sheathed armoured cable (LSA)
LSA cable has a layer of lead sheath that surrounds the insulation layer of the cable. The lead sheath acts as an environmental barrier, protecting the cable against moisture, chemicals, and other harmful substances. LSA cables are commonly used in underground wiring, petrochemical plants, and gas refineries.
Non-magnetic armoured cable (NMA)
NMA cable is a specialized type of armoured cable that is designed for environments where magnetic fields are present. NMA cables have a layer of non-magnetic material, such as brass or copper, that replaces the steel wire layer. NMA cables are commonly used in medical facilities, research labs, and areas where sensitive electronic equipment is present.
Armoured optical fiber cable (OFC)
Armoured OFC has a layer of steel wires or tapes that is wrapped around the jacket of the cable. The armoured layer provides protection against physical damage and prevents signal loss due to temperature changes, bending, or twisting of the cable. Armoured OFC is commonly used in high-speed data transmission applications and long-distance communication networks.
Armoured cables offer several benefits over traditional electrical cables. Here are some of the advantages of armoured cables:
Robustness: Armoured cables are designed to withstand harsh environmental conditions and mechanical stress. They are more resistant to impact, abrasion, and external pressure than regular cables.
Reliability: Armoured cables are more reliable than regular cables because they have an additional layer of protection against environmental stress and electromagnetic interference. They are less prone to signal loss, breakdowns, and short circuits.
Durability: Armoured cables have a longer lifespan than regular cables because they are more resistant to corrosion, UV radiation, and chemical exposure. They are ideal for outdoor installations or areas with high humidity or temperature variations.
Flexibility: Armoured cables come in various sizes and configurations, making them adaptable to different wiring applications. They can be customized to meet specific requirements, such as high voltage, high temperature, or hazardous environments.
In conclusion, armoured cables are a reliable and robust choice for electrical installations that require extra protection against environmental stress and mechanical impact. They offer several benefits over regular cables, including increased reliability, durability, and flexibility. If you are considering an armoured cable for your next wiring project, make sure to choose the right type of cable that meets your specific requirements and industry standards.