What To Know
- In this article, we’ll take a look at why single core cables are not armoured, and the pros and cons of both types of cables.
- Armouring can be in the form of a metal braid, a steel tape, a steel wire, or a steel conduit.
- This could be a cable that is buried under the ground, a cable that is exposed, or a cable that is in a location where there is a high risk of damage.
Single core cables, also known as non-armoured cables, are a popular choice for a wide range of applications due to their flexibility and ease of installation. However, some people may be wondering why single core cables are not armoured, and what the benefits of armoured cable are. In this article, we’ll take a look at why single core cables are not armoured, and the pros and cons of both types of cables.
Why Single Core Cables Are Not Armoured?
Cables are crucial components of any electrical system and are used for various purposes, including transmitting power, data, and signals. The cables used in most systems are multi-core, consisting of several insulated conductors bundled together. These cables are beneficial as they can carry multiple signals or currents simultaneously, making them more versatile and space-saving.
Single-core cables, on the other hand, consist of a single conductor covered by an insulating layer. These cables are not armored, which means they do not have a steel or aluminum outer covering. The lack of armor in single-core cables makes them more vulnerable to damage.
There are several reasons why single-core cables are not armored, including:
1. Cost: Armored cables are more expensive to manufacture and install. Single-core cables, being simpler in design, are more cost-effective.
2. Weight: Armored cables are heavier than single-core cables. This extra weight can be an issue in installations where weight is a critical factor, such as overhead power lines.
3. Flexibility: Armored cables are less flexible than single-core cables, which can be a significant disadvantage in applications where the cable needs to bend or flex.
4. Installation: Armored cables are more difficult to install compared to single-core cables. The armor needs to be stripped off before the cable can be terminated or connected to other devices.
5. Safety: Armored cables provide added protection against physical damage, such as cuts, punctures, or abrasions. Single-core cables lack this protection, making them more vulnerable to damage.
Single-core cables can still be suitable for use in many applications. They are commonly used in residential wiring, small office networks, and low-power control systems. However, for applications that require greater durability and protection against physical damage, multi-core or armored cables are generally preferred.
What Is The Difference Between Single Core And Multi-core Cables?
- Single core and multi-core cables look very similar, but they are designed for different purposes.
- * Single core cable has a single wire and is typically used for low power applications.
- * Multi-core cable has multiple wires and is typically used for high power applications.
- * Multi-core cable is often used in computers and electronic devices to connect various components.
- * Single core cable is often used in applications where space is limited, such as in cars and airplanes.
Why Do Single Core Cables Need Armouring?
There are single core cables without armour. Armouring, or shielding, is typically done around a cable to provide mechanical protection, to prevent the cable from being damaged by external forces. Armouring can be in the form of a metal braid, a steel tape, a steel wire, or a steel conduit.
Armouring is typically done around a cable that has a high risk of being damaged. This could be a cable that is buried under the ground, a cable that is exposed, or a cable that is in a location where there is a high risk of damage. Armouring can also help to protect the cable from electromagnetic interference.
Armouring can be rigid or flexible. Rigid armouring is usually made from steel, and it provides the most protection. Flexible armouring is usually made from a braided metal, and it provides less protection, but it is easier to install.
Armouring can also be made from other materials, such as plastic or rubber. Plastic armouring is more flexible than metal armouring, but it is not as durable. Rubber armouring is flexible and easy to install, but it is not as durable as metal armouring.
Armouring can be a single layer, or it can be multiple layers. Multiple layers provide more protection, but they also make the cable heavier and more expensive. Armouring can also be a single layer with a jacket, or it can be multiple layers with a jacket.
Armoured cables are often used in industrial settings, such as in oil and gas refineries, in factories, and in the mining industry. They are also used in electrical installations, such as in substations and power stations.
What Are The Benefits Of Using Armoured Cables?
Armoured cable, also known as SWA cable, is a type of cable that is commonly used in industrial applications. It has an outer sheath that is made of metal, such as steel, which provides additional protection against damage. There are a number of benefits to using armoured cable, including:
1. Increased durability: The armoured sheath provides added protection against physical damage, such as cuts, abrasions, and crushing. This makes it ideal for use in environments where cables may be subjected to harsh conditions, such as construction sites or manufacturing facilities.
2. Increased safety: The armoured sheath also helps prevent electrical shocks and fires. This is because the metal sheath acts as a Faraday cage, which helps to isolate the electrical current and prevent it from escaping and harming people or equipment.
3. Increased security: The armoured sheath also makes it more difficult for unauthorized individuals to access the internal wiring, which can provide an added layer of security. This can be particularly useful in applications where the cable may be vulnerable to tampering, such as in critical infrastructure or security systems.
4. Increased flexibility: Armoured cable is often more flexible than other types of cable, making it easier to install and route. This can make it more cost-effective and convenient for a variety of applications.
What Are The Different Types Of Armouring Available For Single Core Cables?
Armouring is used to protect single core cables from damage, such as from fire, water, rodents, and physical damage. There are three types of armouring available for single core cables: steel tape armouring (STA), steel wire armouring (SWA), and corrugated steel tape armouring (CSTA).
Steel tape armouring is a type of armouring that is commonly used in single core cables. Steel tape armouring is made by wrapping a thin layer of steel tape around the cable. The tape is flexible and can withstand high temperatures.
Steel wire armouring is a type of armouring that is commonly used in single core cables. Steel wire armouring is made by wrapping a layer of steel wire around the cable. The wire is flexible and can withstand high temperatures.
Corrugated steel tape armouring is a type of armouring that is commonly used in single core cables. Corrugated steel tape armouring is made by wrapping a layer of corrugated steel tape around the cable. The tape is flexible and can withstand high temperatures.
Armouring can be used in single core cables that are used for a variety of applications, including telecommunications, power distribution, and data communications.
How Does Armouring Protect Single Core Cables?
Armouring is a protective covering that is applied to single core cables in order to increase their durability and resistance to damage. It serves as a shield against various threats that may compromise the integrity and functionality of the cables, such as physical impact, moisture, heat, and electrical interference.
There are several common types of armouring materials that are commonly used to protect single core cables, such as steel tape armouring (STA), steel wire armouring (SWA), and aluminium interlocking armouring (AIA). Each of these materials offers different levels of protection, with the specific choice depending on the intended application and the potential threats the cable may face.
Armouring plays a crucial role in protecting single core cables by reinforcing their strength and resilience. It ensures that the cables can withstand physical impacts and resist damage caused by external forces, such as mechanical strain, vibrations, and sharp objects. Additionally, armouring helps shield the cables from moisture, which can contribute to corrosion and electrical faults.
Moreover, armouring provides protection against electrical interference, which can disrupt the signals carried by the cables. By acting as a barrier, the armouring minimizes the impact of electromagnetic interference (EMI), which helps to maintain the signal quality and ensure reliable data transmission.
The Bottom Line
In conclusion, while single core cables may not be armoured, they are generally sufficient for household use. However, if you are planning to use them for heavy-duty applications, it is advisable to use armoured cables.
