All About Armored Electric Cable

Armored cable is a power cable usually made by assembling two or more conductors held together by a sheath. Such a cable comes with high protective covering and is used for transmitting electric power. These cables may be installed as permanent wiring within building or buried under ground.

To be precise, armored cables can be recognized as electric cables with stainless steel or galvanized wire wound with a conductor and insulator. They have an outer sheath for distribution supply.

Significance of Armored Cables

Armored cables are apt for high voltage electrical transmission applications. These include a circuit protective conductor within that provides earthing to the cables. Single conductor Armored cables do not come with ground wiring. The sheath is for protection purposes only. Therefore when it comes to earthing, it is recommended that one core cable should never be earthed on both ends. To prevent an electric leak, a single conductor Armored cable having lead, aluminum, stainless steel, or copper armor should not be laid on ground.

Advantage Of Armored Cable

Armored cables are extremely flexible and this makes them the right choice for industrial purposes. The mechanism involved in these cables allows more flexibility and durability. The chromium content in the steel armor protects the cable from damage even in the harshest of environments. Armored cables can also withstand considerable levels of heat due to the presence of PVC bedding. The external protection in conductors allows better transmission of electricity, even under high pressure.

Purchasing an Armored Cable

If you are purchasing steel wire armored cable for strength and durability, then you must keep the following points in mind.

• Color of cable for coding: Steel wire Armored cable comes in colors such as white, blue, black, red, etc. Black, red or blue colored wires indicate live wire. White is neutral, green is for earthing.
• Materials for making a wire: The most common material used for making an Armored cable is copper and aluminum. Thus, choosing the most suitable conductor requires proper product knowledge.
• Operating conditions: Wires used in wet conditions come with a ‘W’ label. For gaseous or oily environment, wire cables come with N printed on them.

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