One such example are steel wire armoured cables or swa cables for short.
Steel wire armoured cables.
Features of the swa cable.
We have a vast amount of basec approved steel wire armoured swa cable in stock.
Why single core cable armoured with steel wire or tape must not be used for a c steel wire armoured cable wikipedia the free steel wire armoured cable commonly abbreviated as swa is a hard wearing power cable designed for the supply of mains electricity.
Swa cables are used as power cables and are usually employed in applications where the cable has to be buried underground and in power networks.
It will supply a continuous flow of electricity to the intended target due the galvanized steel overlapping the center cable.
Armoured power cables are available with both copper and aluminium conductors as required.
Swa cable multi core steel wired armoured cables a multi core swa cable is a cable with a number of cores steel wire armour is only used on multi core cables.
Voltage rating of 60 1000v a pvc black outer sheath multi core galvanised steel wire armouring pvc bedding xlpe insulation plain annealed copper conductors approved to bs5467 bs en 60332 and basec approved.
Bs5467 steel wire armoured cables.
Therefore they are most suited to underground cabling or fixed to outdoor walls using cable cleats.
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.
Steel wire armoured cable swa is a highly reinforced power cable.
These include low voltage and medium voltage swa steel wire armour 3 core cable and all sizes of these widely used armoured power cables with current ratings up to 33kv for single core cables aluminium wire armour awa is used to prevent induced current in the armour.
The insulated cores are then protected by a layer of pvc.
Each cable is built up of numerous copper cores followed by xlpe insulation of the cores.
The advantage is that it is strong and can stand up to many typesof weather.
For example when the power cable needs to be installed in a highly populated and or enclosed public area a low smoke zero halogen lszh equivalent called swa bs 6724 cable must be used swa cable bs 6724 has lszh bedding and a black lszh sheath all london underground cables are required to use lszh sheathing.
Swa cable which means steel wire armoured is heavy and difficult to bend which helps to reduce the risk of pinching and damage.
Swa cables are heavy which makes them extremely difficult to bend.
Armoured cable is covered by a metal sheath which protects the cable from water and extreme temperatures allowing it to be used in underground or external projects as well as indoor applications.
