Introduction of Armored Power Cable
Steel Tape Armored (STA) Cable could bear certain mechanical force, but it could not bear great pulling force. It is suitable o be laid underground. STA cable not only has excellent electric, mechanical properties, but also has powerful resistance against heat aging, environmental stress and chemical corrosion. Its structure is simple and convenient to use and can be laid with no restriction of different elevation. The permissible maximum operating temperature is 90℃. Steel tape armored cable (STA Cable) produced by Gongyi Cable Wire Co., Ltd can be produced according to our company standard which is equivalent IEC60502. Gongyi Cable Wire Co., Ltd can design and manufacture other Specification and armored type upon request.
Features of Armored Power Cable
Steel Wire Armored (SWA) Cable commonly abbreviated as SWA cable, is a hard-wearing power cable designed for the supply of mains electricity. It is one of a number of armored electrical cables – which include 11kV Cable and 33kV Cable – and is found in underground systems, power networks and cable ducting. The typical construction of an SWA cable can be broken down as follows:
Conductor: consists of plain stranded copper (cables are classified to indicate the degree of flexibility. Class 2 refers to rigid stranded copper conductors as stipulated by British Standard BS EN 60228:2005)
Insulation: Cross-linked polyethylene (XLPE) is used in a number of power cables because it has good water resistance and excellent electrical properties. Insulation in cables ensures that conductors and other metal substances do not come into contact with each other.
Bedding: Polyvinyl chloride (PVC) bedding is used to provide a protective boundary between inner and outer layers of the cable.
Armor: Steel wire armor provides mechanical protection, which means the cable can withstand higher stresses, be buried directly and used in external or underground projects. The armoring is normally connected to earth and can sometimes be used as the circuit protective conductor ("earth wire") for the equipment supplied by cable.
Sheath: a black PVC sheath holds all components of the cable together and provides additional protection from external stresses.
The PVC version of SWA cable, described above, meets the requirements of both British Standard BS5467 and International Electrotechnical Commissionstandard IEC 60502. It is known as SWA BS5467 Cable and it has a voltage rating of 600/1000V. SWA cable can be referred to more generally as mains cable, armored cable, power cable and booklet armored cable. The name power cable, however, applies to a wide range of cables including 6381Y, NYCY, NYY-J and 6491X Cable.
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