![]() ![]() SWA cable can be referred to more generally as mains cable, armoured cable, power cable and booklet armoured cable. It is known as SWA BS 5467 Cable and it has a voltage rating of 600/1000 V. The PVC version of SWA cable, described above, meets the requirements of both British Standard BS 5467 and International Electrotechnical Commission standard IEC 60502. Sheath: a black PVC sheath holds all components of the cable together and provides additional protection from external stresses.The armouring is normally connected to earth and can sometimes be used as the circuit protective conductor ("earth wire") for the equipment supplied by cable. Armour: Steel wire armour provides mechanical protection, which means the cable can withstand higher stresses, be buried directly and used in external or underground projects. ![]() ![]() Bedding: Polyvinyl chloride (PVC) bedding is used to provide a protective boundary between inner and outer layers of the cable.Insulation in cables ensures that conductors and other metal substances do not come into contact with each other. Insulation: Cross-linked polyethylene (XLPE) is used in a number of power cables because it has good water resistance and excellent electrical properties.Class 2 refers to rigid stranded copper conductors as stipulated by British Standard BS EN 60228:2005 ) Conductor: consists of plain stranded copper (cables are classified to indicate the degree of flexibility.The typical construction of an SWA cable can be broken down as follows: Blue sheathed cable is normally instrumentation signal, black is power Armouring is also applied to submarine communications cables.Ĭonstruction Example of steel wire armoured cables in a UK installation. Īluminium can also be used for armouring, and historically iron was used. It is one of a number of armoured electrical cables – which include 11 kV Cable and 33 kV Cable – and is found in underground systems, power networks and cable ducting. We offer a comprehensive range of BASEC-approved armoured cables, manufactured in accordance with a number of British, European and International standards including BS5467, BS6622, BS6724, BS7835, BS EN 50267, IEC 60502 and BS EN 6 (for single core cables).Įland Cables' range of armoured cable is available with a Copper (Cu) or Aluminium (Al) conductor and with a Polyvinyl Chloride (PVC) or Low Smoke Zero Halogen (LSZH) sheathing, LSZH sheathings are recommended for use in high density enclosed areas, and are mandatory in some public places.In electrical power distribution, armoured cable usually means steel wire armoured cable ( SWA) which is a hard-wearing power cable designed for the supply of mains electricity. The construction of our various types of armoured cable (US spelling armored cable) differs according to their intended application and may also include steel tapes, protective screens and materials suited specifically to the installation conditions. Black sheaths can be carbon-loaded for UV stability. Sheath: the constituent parts of the cable are held together by a sheath offering a further level of protection. Insulation: materials such as cross-linked polyethylene (XLPE) provide high temperature resistance and excellent dielectric strength-providing enhanced electrical properties.īedding: a layer to create a protective barrier between the insulation and the armour.Īrmour: a steel or aluminium armour provides mechanical protection to allow the cable to withstand the mechanical stresses to which it is exposed. Typically, the construction of an aluminium or steel wire armored cable comprises six components:Ĭonductor: plain stranded copper or aluminium ![]()
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |