This cable calculator is to be used as a guide only; the cable sizes are worked out using information given from your input, accurate values are essential to give you the correct cable size. The user is to ensure the type of cable is suited to environment and conditions the cable will be exposed to.
This cable calculator is set for Installation method C (Clipped Direct), for cable types BS5467 and BS6724 SWA (Steel wire armoured cable) and is based on the voltage drop selected at 230V single phase and 400V three phase.
If you need any further help with sizing your cable please call one of our team on 01244 288138
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4 Core swa cablehttps://quickbit.co.uk/cable/swa-cable/swa-cable-4-core
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SWA Cable 4 Core is a variant of electrical cable that is protected by a steel wire armour that’s just below the sheathing. The cores are made from plain annealed copper strands, the bedding and sheathing are made from polyvinyl chloride and, as stated previously, the armour is made from steel.
One of the many advantages of this cable having a steel wire armour is the fact that it provides the cable with mechanical protection. This ensures it is suitable for outdoor environments as well as direct burial into the ground.
If an installation requires the cable to be run along walls or structures, then Cable Cleats are available that ensure a tight and secure fit, and are extremely easy to install. These are available in a variety of different sizes. Also available are armoured glands which are used for terminating the cable into junction boxes or powered devices. When installing the cable underground, it is recommended that warning tape is used before covering the cable as this ensures that people who are digging in the area in future know that cable is beneath the ground.
2 voltage ratings of armoured cable are ordinarily used which are 11kV & 33kV. 11kV is constructed in the same way as regular SWA Cable, so plain annealed stranded copper for the cores, bedding and sheathing of polyvinyl chloride, cross-linked polyethylene and steel wire armouring, but also includes a polyethylene terephthalate filler and binding tape separator in between the insulation and steel wire armour.
The insulation is protected against a variety of hazardous chemicals due to the fact that it’s made from cross-linked polyethylene. Please note that even though the basic XLPE insulation is protected from a wide range of hazardous chemicals and materials, you may require cable with a different insulation when it is being installed into an environment where the temperatures are extreme, such as desert heat or arctic temperatures to abide by all health & safety regulations.
4 Core Cable is used in a wide variety of installations and applications, covering a whole range of industries. Ordinarily, this cable can be found on building sites, railway lines as well as the transport industry in general, supplying power to devices etc. that require a constant source of power from the mains. 4 core cable can also be found in the ceilings of warehouses and factories by installing cable ducting.
Although this cable is commonly found in industrial applications, it is perfectly suitable for domestic and home installations too. It’s commonly found carrying power to outdoor features such as water features, outdoor lighting arrangements as well as hot tubs and swimming pools. The size of cable required for these kinds of installations can vary depending on the amount of power being put through them. Please ensure that you contact an electrician or industry-professional to inform you of the size cable that is required for whatever installation cable is going to be used for as if the wrong cable size is used, it could pose a health & safety risk.
Another variant of 4 Core Cable is the Low Smoke & Fume type (LSF). This is commonly found in public houses and businesses that require an extra level of health & safety such as hospitals and schools. This is due to the fact that LSF Cable, as signified by the name, does not let off a harmful amount of toxic fumes and smoke when burnt in the event of a fire. This means that there is less risk of the smoke created covering fire exits etc. and potentially costing people their lives. A common example of the use of LSF Cable would be the London Underground Train systems which all use LSF Cable.
Various accessories are available for LSF Cable such as LSF Glands, which are the same as normal glands apart from the fact that they’re constructed from the same low smoke and fume material that the LSF Cable is made from as to make the entire length and installation of cable as safe as possible.
Below is a list of specifications for 4 Core Cable:-
- Multi-core XLPE Insulated/PVC/SWA/PVC sheathed to BS5467 600/1000v
- Conductors: Plain Annealed Stranded Copper
- Insulation: XLPE (Cross Linked Polyethylene)
- Core Identification: 4 Core (Brown, Black, Grey & Blue)
- Bedding: PVC (Polyvinyl Chloride)
- Armour/Protection – Steel Wire Armour
- Sheath/Jacket: PVC (Polyvinyl Chloride)
- Colour: Black
- Voltage: 600/1000v
- Operating Temperature: Maximum 90 Degrees, Minimum Bending 0 Degrees
- Standard: BS5467: Electrical Cables: Thermosetting Insulated, armoured cable for voltages of 600/1000v and 1900/3300v.
Here at Quickbit, we stock and supply a large range of 4 Core Armoured Cable, so if there is a specific type that you require but cannot find among the ones we have available through the website, please feel free to call our sales team on 01244 288138 for further information and assistance on finding the cable that you desire.
Quickbit is based on Zone 1 of Deeside Industrial Estate near Chester, so if you’d prefer to pick up armoured cable or any of the other products we have on the website instead of having them delivered, please feel free to do so.
4 Core Cable available for the best prices online with fast, free delivery on orders over £100.