185mm² 4 Core SWA Cable is a heavy-duty low voltage power cable designed for underground systems, industrial power distribution, and external fixed installations. It features high-conductivity copper conductors, heat-resistant XLPE insulation, a tough PVC sheath, and galvanized steel wire armour (SWA) for mechanical protection.
Ideal for direct burial and outdoor use, this 185mm² 4-core cable is widely used in LV mains electricity, substations, power networks, and commercial installations, where both high current capacity and external protection are essential.
Key Features
Conductor: High-purity copper, stranded, compacted for optimal conductivity
Insulation: Cross-linked polyethylene (XLPE), rated up to 90°C
Armour: Galvanized steel wire armour (SWA) for mechanical protection
Sheath: Robust PVC outer jacket, available with optional flame retardant or LSZH material
Voltage Rating: 600/1000V according to BS 5467, IEC 60502-1
Flame Retardant: Meets IEC 60332-1-2, optional IEC 60332-3 group standards available
Applications
Underground power transmission
LV distribution networks
Submains to commercial buildings or plants
Infrastructure projects
Cable trays or ducts where protection from mechanical damage is required
This 185mm² SWA 4-core cable is engineered for long-term reliability in harsh conditions, resistant to water, oil, UV, and chemical exposure. Its mechanical protection makes it well-suited for installations in areas exposed to impact, rodents, or crushing loads.
CONSTRUCTION :
4 Core Steel Wire Armoured SWA Cable Construction
| Layer | Description |
|---|---|
| Conductor | Plain annealed copper, stranded (Class 2, circular compacted) |
| Insulation | XLPE (Cross-linked polyethylene), heat-resistant up to 90°C |
| Core Identification | Red, Yellow, Blue, Black (other options on request) |
| Filler & Binder | Non-hygroscopic filler, PVC inner bedding |
| Armour | Galvanized Steel Wire (SWA) for mechanical protection |
| Outer Sheath | PVC (Standard), optional LSZH, FR, UV-resistant, or anti-termite types |
Technical Data
| Parameter | Value |
|---|---|
| Rated Voltage | 600/1000V |
| Operating Temp. Range | -15°C to +90°C |
| Max. Short Circuit Temp | 250°C (5s) |
| Minimum Bending Radius | 20 × overall diameter (armoured) |
| Flame Retardant Standard | IEC 60332-1-2, optional IEC 60332-3 |
Electrical Ratings
| Installation Condition | Current Rating (Amps) |
|---|---|
| In Air | 495 A |
| Direct in Ground | 458 A |
| In Duct | 382 A |
Dimensional & Physical Properties
| Parameter | Specification |
|---|---|
| Conductor Size | 185mm² |
| Number of Cores | 4 |
| Diameter Under Armour | 46 mm |
| Overall Diameter | ~55.3 mm |
| Nominal SWA Diameter | 2.5 mm |
| Approx. Cable Weight | 10,350 kg/km |
Standards & Compliance
BS 5467 – Armoured XLPE insulated cables
IEC 60502-1 – Power cables with extruded insulation (up to 1kV)
IEC 60228 – Class 2 stranded conductors
Flame retardant: IEC 60332-1-2, optional IEC 60332-3 Cat A/B/C
LSZH options: BS 6724, IEC 60754, IEC 61034
Optional Variants
Available in aluminium conductor (AL/SWA/PVC) on request
LSZH sheath for low smoke and halogen-free installations
Fire resistant, anti-rodent, and UV-protected sheath options
Also available in 2-core, 3-core, 5-core or multi-core versions
Need a Custom Solution?
We supply 185mm² SWA cables in standard and customized configurations for construction projects, substations, infrastructure, and energy sectors. Contact TOT Wire & Cable for datasheets, pricing, or expert assistance.