Armored cables, also known as armored electrical cables or armoured cables, play a crucial role in the electrical and telecommunication industries They provide enhanced protection against external forces, making them ideal for installations where durability and safety are paramount In this article, we will explore what armored cable is, its construction, and when you should consider using it.
Armored cable is a type of electrical cable that features a protective layer made of a metallic material, typically steel or aluminum This layer, known as the armor, is designed to shield the inner components of the cable from various external factors that could damage or disrupt its functionality The armor provides additional protection against harsh environmental conditions, mechanical stresses, moisture, and even rodent attacks As a result, armored cables are known for their durability and reliability.
There are two main types of armored cables: steel armored cable and aluminum armored cable Steel armored cable, often referred to as steel wire armored (SWA) cable, is the most commonly used type It consists of multiple conductor cores, an insulation layer, steel wires laid in a helical pattern around the cores, and a sheath that encloses everything Aluminum armored cable, also known as aluminum wire armored (AWA) cable, follows a similar design, replacing steel wires with aluminum ones.
The construction of armored cables allows them to withstand significant amounts of external pressure The armor provides mechanical strength to the cable, preventing it from being easily crushed, stretched, or pierced This makes armored cables suitable for both underground and overhead installations, such as power distribution systems, underground wiring, outdoor lighting systems, and communication networks.
One of the primary advantages of armored cables is their resistance to moisture and other environmental elements The armored layer acts as a barrier, effectively preventing water, dust, and other contaminants from penetrating the cable armered cable. This feature makes armored cables ideal for outdoor applications where exposure to moisture is a concern Additionally, the armor also offers protection against UV radiation, ensuring the cable’s longevity even in direct sunlight.
In areas where rodents or other animals may pose a threat to electrical or telecommunication systems, armored cables are a wise choice The metallic armor acts as a deterrent, making it more difficult for animals to chew through the cable and cause costly damage This feature is particularly beneficial in underground installations or buildings with infestations.
When deciding whether to use armored cable, it is crucial to evaluate the specific installation requirements and environmental conditions In situations where the cable will be exposed to physical stress or potential damage, such as in industrial facilities or construction sites, armored cables are highly recommended They offer crucial protection against accidental impacts, abrasions from sharp objects, or even heavy equipment running over the cable.
If you expect the cable to be installed in areas with extreme temperatures or rapid temperature fluctuations, such as outdoor environments, armored cables are an excellent choice Their armor provides insulation against extreme heat or cold, preventing potential damage that could be caused by expansion or contraction.
In summary, armored cable is a reliable and durable option for electrical and telecommunication installations Its construction, featuring a protective layer made of steel or aluminum, ensures resistance against external forces, moisture, and potential damage from rodents Armored cables excel in applications where durability and safety are paramount, such as power distribution systems, outdoor lighting installations, and communication networks When selecting a cable for your specific project, consider the potential environmental hazards and level of physical stress involved to determine if armored cable is the best choice for you.