Earthing swa cable

I came across an unusual arrangement regarding the earthing of the armour in a submain cable recently and wondered if anybody can see a problem with this? SWA Cable can be referred to more generally as Mains Cable , Armoured Cable , Power Cable and Booklet Armoured Cable. When cable glands are used to terminate SWA (Steel Wire Armour) cables , the gland must be able to provide earth continuity from the termination of the armour through.

But you should still earth the armour even if you are using a core as an earth. Steel wire armoured cable , commonly abbreviated as SWA , is a hard-wearing power cable designed for the supply of mains electricity. It is one of a number of armoured electrical cables – which include kV Cable and kV Cable – and is found in underground systems, power networks and cable ducting. Table Equal Size Conductor Cables PVC ins. Calculations based on the following:- Copper equivalent CSA = Kx SWA section KCopper(Cu) Copper(Cu) Copper (Cu) Core Core Core Core Core Core Where Kis the phase.

Charles Endirect - Central Earth Terminal (CET) for Steel Wire Armour ( SWA ) Cable Termination. Factory direct sale swa cable , without third party, Ask! Fast Free Delivery Order Online. Low Prices on 10mm Twin And Earth Cable. By not earthing the SWA at both ends we eliminate the effect.

There is no requirement in the Regs to Earth at both ends and not doing so is the safer option. C XPLE steel wire armoured cables. Hi, I had a discussion with another electrician on a job regards earthing an SWA on a metal isolator and consumer unit. I installed the SWA , 3core using the 3rd. But I kept on thinking back to cable jointing and constant pressure springs.

I had a dig around and found 3M can supply the springs and copper braid separately from joint kits. This could save a lot of time and trouble f. Cable manufacturers supply and recommend the termination of their SWA cables in glands correctly selected for the individual size of the particular cable. These glands are supplied for internal use and alternative exterior glands rated at IPfor external use.

If running a cable outside, then IMO it is bad practice to use steel armouring as CPC. I have seen numerous times what happens to the armour when the sheath of the cable is damage and water starts to ingress. Improve Your Business ROI - Get A Better Deal On Xlpe Swa Pvc Cable. Regardless of whether the armouring of a steel wire armoured cable ( swa ) is employed as a protective conductor or not, it should always be effectively earthed to.

With copper wiring creating the perfect conductors for the core with a range of types such as core, core and core SWA Cables to name a few. Hi Martin, It does need earthing. Ignoring the regs for a minute, the best way to think about it is: what happens when I stick a fork tine through the cable. Toolstation stocks many types of electrical cable suitable for fitting electrical systems, with competitive pricing.

Commonly used for mains electricity due to its hardwearing properties, numerous kinds of armoured cable are available including wire armoured cable with galvanised steel or SWA wire in a variety of lengths and sizes. Steel Wire Armoured ( SWA ) Cable is a strengthene weatherproof cable ordinarily constructed with Plain Annealed Stranded Copper within the cores, Armouring made from Aluminium in Single Core Cable or Steel for multi-core cable and a PVC (Polyvinyl Chloride) Sheathing and Bedding. The picture below shows what should be done. The SWA circuit cable was disconnected for safety reasons. Cat5e SWA cable is ideal for applications where you need a armoured cat5e data cable or Ethernet cable.

A standard cat5e UTP Ethernet data cable on the inside of the jacket. What regulations apply to SWA and Earthing Nuts? Reference can also be made to IEE Guidance.