When it comes to electrical installations or outdoor projects, choosing the right type of cable is crucial. One of the most popular and reliable cables available in the market is the Steel Wire Armoured (SWA) cable. SWA cables are known for their durability, strength, and resistance to harsh conditions. In this article, we will discuss everything you need to know about SWA cables.
What is SWA Cable?
SWA cable is a type of armoured cable that is commonly used in electrical installations, especially in areas where the cable needs to be armoured to protect it from damage. The cable is made up of a copper core and insulating materials coated with a layer of steel wire armouring. This steel wire armouring is responsible for providing mechanical protection to the cable so that it can withstand harsh weather conditions, vibrations, and other external factors that could cause damage.
The SWA cable is available in various sizes, depending on the application’s requirements. It is suitable for both indoor and outdoor installations, and its versatility is one of the reasons why it is preferred by electrical technicians and engineers.
Benefits of SWA Cables
SWA cables have numerous benefits that make them a reliable and popular choice for electrical installations. Some of these benefits include:
1. Durability – SWA cables are durable and robust, thanks to the steel wire armouring, making them suitable for outdoor installations that can be exposed to harsh weather conditions.
2. Protection – The steel wire armouring provides mechanical protection to the cable, making it resistant to damage from external factors such as rodents, rocks, and other hazards.
3. Increased safety – SWA cables provide additional safety, especially in areas where the risk of fire or electrical hazards is high.
4. Easy installation – The cable is easy to install, and its versatility means that it can be used in various applications.
Uses of SWA Cables
SWA cables can be used in various applications, including:
1. Underground installations – The cable is suitable for underground wiring because of its durability and resistance to environmental factors.
2. Outdoor lighting – SWA cables are used in outdoor lighting installations because of their mechanical protection and durability.
3. Power distribution – The cables are suitable for power distribution in commercial and industrial buildings, providing reliable and safe electrical connections.
4. Domestic wiring – SWA cables can be used for domestic wiring, where mechanical protection is required, i.e., in areas where there is high traffic.
Types of SWA Cables
SWA cables are available in different types, depending on their application and environment. Some of the types of SWA cables include:
1. PVC SWA cable – PVC SWA cable is suitable for indoor and underground installations, where moisture is not a significant factor.
2. XLPE SWA cable – This type of cable is used in environments where moisture is a concern, as it is resistant to water and moisture and suitable for outdoor installations.
3. LSF SWA cable – LSF SWA cable is used in areas where fire or electrical hazards are high, i.e., commercial buildings, underground installations, and public places.
SWA Cable Installation
Installation of SWA cables requires careful consideration, and it’s best to seek advice from a qualified electrician. Here are some tips to consider when installing SWA cables:
1. Choose the right type of SWA cable for the application and the environment.
2. Consider the cable’s bending radius and ensure it is within the recommended limits.
3. Use the appropriate cable gland to secure the cable to the intended application.
4. Ensure that the cable gland and the armoured cable provide a secure connection to protect the cable from external hazards and prevent moisture from entering the installation.
Maintenance of SWA Cables
Proper maintenance of SWA cables is essential to ensure the cable’s longevity and optimal performance. Here are some maintenance tips for SWA cables:
1. Regularly check the cable for any signs of damage, including wear and tear, cuts, or abrasions.
2. Keep the installation area clean and free of debris to prevent damage to the cable.
3. Ensure that the cable gland is tight and secure to prevent moisture from entering the installation.
4. Regularly inspect the cable gland for any signs of corrosion or damage and replace it if necessary.
Conclusion
SWA cables are a reliable and durable cable type commonly used in various applications, especially outdoor installations. Their mechanical protection and resistance to environmental factors make them a popular choice for electrical installations. However, proper installation and maintenance are crucial to ensure their optimal performance and longevity. Always seek advice from qualified electricians before installing or maintaining SWA cables.