Can I use Armoured cable outside?

Asked By: Camillo Gumbert | Last Updated: 12th March, 2020
Category: home and garden home entertaining
4.7/5 (1,230 Views . 44 Votes)
Steel Wire Armoured Cable is designed to have mechanical protection, which is why the cable is often used for external use. SWA cables are heavy, which makes them extremely difficult to bend; therefore they are most suited to underground cabling or fixed to outdoor walls using cable cleats.

Click to see full answer


Similarly one may ask, does outdoor cable have to be Armoured?

Garden Electrics Regulations and Underground Cables To put cables underground in the garden the regulations state that the cable, preferably SWA or Steel Wired Armoured cable must be covered with a buried warning tape to alert anyone digging in the garden.

Subsequently, question is, where is Armoured cable used? Commonly known as SWA cable, the steel wire armoured cable is a power and auxiliary control cable, designed for use in mains supply electricity. Used for underground systems, cable networks, power networks, outdoor and indoor applications, and cable ducting.

Simply so, when should Armoured cable be used?

In this context, armoured cables are most often used for fixed power installations in industrial applications, such as power distribution in a plantroom, where cables may be damaged by maintenance operations, for example. Clause 522.8.

Can you use PVC cable outside?

Generally, where pvc insulated and sheathed (Twin & Earth) cable is routed externally, it should, where accessible, be protected against impact.

25 Related Question Answers Found

How do I protect my cable outside?

To do that, you need to use waterproof cable cap to make sure you cover the jack and the port with protective cover. As for the cable exposing outside, use protective tape to make sure the cable is not easily exposed to the element but not too much to cause heat.

How do you protect electrical wires outside?

Run electrical cable in PVC conduit at least 12 inches deep in the ground. The easiest way to protect outdoor electrical wiring from damage is by burying it 12-in. underground in PVC conduit. Our photo shows you the key elements of this project.

Do I need a permit to run electricity to my shed?

Electrical work almost always requires a permit. Make sure you pull permits before starting the work or you could face fines. Call your local building office to learn what documentation you need to provide to receive permit approval.

Can you run mains cable outside?

You can wire an external socket in the same manner as a normal spur, by running the cable from a socket or junction box on a main ring circuit (via a switched connection unit) and mounting the socket on an external wall. Ensure your circuit has RCD protection, and that you use appropriate weatherproof outdoor fittings.

Is Armoured cable waterproof?


As others have said armoured cable, we have lots of it running fom the house down the garden to get power to a shed, greenhouse, workshop and exterior power point. It has the normal plastic coating and thus is waterproof.

What kind of wire do you use for outdoor conduit?

Type UF cable is the most commonly used nonmetallic cable for residential outdoor wiring runs. UF cable can be direct-buried (without conduit) with a minimum of 24 inches of earth cover.

What is 3 core Armoured cable used for?

3-Core SWA Armoured Cables are live, neutral and earth, unlike 2-Core. Three core cable is for Class I or Single Insulated which must have earth connections. 4-Core SWA Armoured Cable are perfect for low voltage or low current signal applications.

What is the advantage of Armoured cable?

Because of the amount of power being transmitted. Using armored cables helps in insulating the transmission components from emitting the interference. And also from being affected by interferences that are being emitted from neighboring cables and also appliances.

What Colour is Earth in Armoured cable?

sparkydude. Standard colours would be brown as live, black sleeved as earth and grey sleeved as blue as neutral.

What is the difference between Armoured cable and unarmoured?


Armoured cable is installed in locations exposed to mechanical damage, such as on the outsides of walls, as an alternative to conduit. Armoured cable usually has a small metal ribbon to ensure electrical continuity of the safety ground. Unarmoured cable is mainly used for control systems.

How do you use Armoured cable?

MC cable has a green-insulated ground wire, used like the bare ground wire in NM cable.
  1. Step 1: Bend Cable. Bend the cable about 10 inches from its end and squeeze with your hand until the coils of the armor come apart.
  2. Step 2: Twist Cable.
  3. Step 3: Cut Exposed Coil.
  4. Step 4: Cut the Wires.
  5. Step 5: Remove Excess.

What is Armoured cable made of?

SWA cables are multicore cables with a layer of steel wire armour, which provides protection from mechanical damage. 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.

How do you cut Armoured cable?

Method 2 Cutting Armored Cable with Side Cutters
  1. Measure your cable and mark it for cutting.
  2. Bend the cable where you want to make the cut.
  3. Insert a diagonal cutter into the opening of the armor.
  4. Cut off the excess armor.
  5. Slide off the waste piece.
  6. Cut the wires to length.
  7. Trim the sharp ends of the remaining armor.

Why is the cable outer sheath black?


Black color will not hold the heat, it is having the higher emissivity. If black sheath cable is heated, after some time it will automatically liberate the heat.

What is meant by Armoured cable?

Definition of armored cable. : an electrical conducting cable with a wrapping of metal (such as tape or wire — compare armor entry 1 sense 5b.

What cable should I use for outdoor lights?

Mains-powered garden lighting
Once outdoors, you should supply your lights via 1.5mm² three core steel-wire-armoured cable (SWA). Make sure that you only fit weatherproof lights that are suitable for outdoor use and that your circuit is RCD-protected.