This BS 6724 three-core aluminium cable is rated at 1900/3300V (1.9/3.3kV). It combines XLPE insulation, galvanised steel wire armour and an LSZH outer sheath for fixed power distribution in industrial facilities, substations, buildings and infrastructure where the project requires this voltage rating, mechanical protection and low-smoke, halogen-free sheathing.
The dedicated parameter table contains 12 entries covering 16 to 300 mm², including separate 3 x 35 and 3 x 35* variants. Starred entries are identified in the original note as Class 1 solid-shaped conductors. Select the exact table entry, installation arrangement and accessories to suit the circuit design and approved supply specification.
| Conductor | Solid Aluminum or Annealed Copper conductor, circular or shaped, Class 2 to BS EN60228. |
| Insulation | XLPE (Cross-Linked Polyethylene) Type GP 8 conforming to BS 7655-1.3 or type GP 6 conforming to BS 7655-1.2. |
| Colour Code | 1 Core : Brown or Blue |
| 2 Cores : Brown, Blue | |
| 3 Cores : Brown, Black, Grey | |
| 4 Cores : Blue, Brown, Black, Grey | |
| 5 Cores : Green/Yellow, Blue, Brown, Black, Grey | |
| Above 5 Cores : White Cores with black numbers | |
| Bedding | The bedding shall consist of an extruded layer of polymeric material consistent with the operating temperature of the cable. |
| Armour | Single Core : AWA (Aluminum Wire Armour) |
| Multi Core : GSWA (Galvanized Steel Wire Armour) | |
| Outer Sheath | LSOH (Low Smoke Zero Halogen),conforming to BS 7655-6.1. |
| Voltage rating | 1900/3300V |
| Temperature rating | 0°C to +90°C |
| Bending radius | 1.5mm² to 16mm² : 6 x overall diameter |
| 25mm² and above : 8 x overall diameter | |
| Flame retardant | BS EN 60332-1-2 ; BS EN 60332-3-24:2009 |
| Halogen free | BS EN 60754-1 |
| Smoke density | BS EN 61034-2 |
| Nominal Cross-sectional Area | Nominal Insulation Thickness | Nominal Bedding Thickness | Nominal Steel Wire Armor dia. | Nominal Sheath Thickness | Approx. Overall Diameter | Aprrox. Weight |
|---|---|---|---|---|---|---|
| mm² | mm | mm | mm | mm | mm | kg/km |
| 3x16 | 2 | 1 | 1.6 | 1.8 | 27.9 | 1540 |
| 3x25 | 2 | 1 | 1.6 | 1.8 | 30.4 | 1780 |
| 3x35 | 2 | 1 | 1.6 | 1.9 | 32.7 | 2040 |
| 3x35* | 2 | 1 | 1.6 | 1.9 | 29.7 | 2040 |
| 3x50* | 2 | 1.2 | 2 | 2 | 33 | 2760 |
| 3x70* | 2 | 1.2 | 2 | 2.1 | 36 | 3210 |
| 3x95* | 2 | 1.2 | 2 | 2.2 | 39.1 | 3625 |
| 3x120* | 2 | 1.4 | 2.5 | 2.3 | 43.1 | 4820 |
| 3x150* | 2 | 1.4 | 2.5 | 2.4 | 45.6 | 5410 |
| 3x185* | 2 | 1.4 | 2.5 | 2.5 | 48.7 | 6070 |
| 3x240* | 2 | 1.6 | 2.5 | 2.6 | 53.2 | 7150 |
| 3x300* | 2 | 1.6 | 2.5 | 2.7 | 57.2 | 8120 |
* Solid shaped conductor (class 1)
1900/3300V three-core aluminium conductor cable.
XLPE insulation with a nominal thickness of 2 mm across all 12 listed entries.
Galvanised steel wire armour, polymeric bedding and an LSZH outer sheath.
Size range of 16-300 mm², with separate starred and unstarred entries at 35 mm².
Class 1 solid-shaped conductor variants identified by the asterisk in the original parameter table.
Size-specific layer dimensions, approximate overall diameters and weights, with flame-retardance, halogen-content and smoke-density references in the technical table.
Keep the conductor variant in the specification. The table lists 3 x 35 at an approximate overall diameter of 32.7 mm and 3 x 35* at 29.7 mm. Both entries must remain distinct when requesting a quotation or selecting glands and accessories. The asterisk applies to 3 x 35* and the listed entries from 3 x 50* to 3 x 300*.
Confirm conductor construction and core identification. The starred rows have the specific Class 1 solid-shaped note. The general construction table also contains aluminium, copper and Class 2 family wording; confirm the form and class of unstarred entries and the final insulation grade on the approved supply drawing. The three-core colour entry is brown, black and grey. Agree core identification, the circuit arrangement and protective-conductor requirements with the project designer.
Check installation dimensions and bending limits. The technical table gives a bending radius of 6 times the overall diameter for the 16 mm² entry and 8 times the overall diameter for 25 mm² and above. Confirm production dimensions, armour bonding and earthing, terminations, cable supports and pulling requirements. The 3 x 16 entry is listed at approximately 27.9 mm and 1540 kg/km; 3 x 300* is listed at 57.2 mm and 8120 kg/km.
Specify electrical and route conditions. Select the cross-sectional area for current demand, voltage drop, fault duty, grouping and installation conditions. Request an installation-specific current-rating assessment. Provide the tray, duct, riser or underground arrangement and any water, sunlight or chemical exposure requirements; confirm direct-burial suitability for the actual site.
Provide delivery details and use the correct drawing. State total length, drum lengths, sheath colour, required test documents, packing and delivery destination. The gallery includes aluminium and copper family illustrations. Use the aluminium parameter table, its starred notes and the approved construction drawing to define the ordered cable.
BS 6724 1900/3300V armoured LSZH cable range — review the family overview and project selection requirements.
BS 6724 1900/3300V single-core aluminium conductor cable — compare the single-core arrangement using its own AWA construction and parameter table.
BS 6724 1900/3300V single-core stranded copper conductor cable — compare the single-core copper option using its own AWA construction and parameter table.
The table covers 16, 25, 35, 50, 70, 95, 120, 150, 185, 240 and 300 mm². There are 12 entries because 35 mm² has both a starred and an unstarred variant. Retain the full row designation when specifying the cable.
The original note defines starred entries as solid-shaped conductors, Class 1. It applies to 3 x 35* and the listed starred entries from 3 x 50* through 3 x 300*. Confirm the conductor construction of unstarred entries separately.
The 3 x 35 and 3 x 35* entries identify different conductor-form variants with approximate overall diameters of 32.7 mm and 29.7 mm respectively. The starred version has the Class 1 solid-shaped note. Specify which entry is required before confirming accessories and the order.
The multicore construction entry specifies galvanised steel wire armour, and the dedicated table lists steel wire armour diameter. The three-core colour entry is brown, black and grey; confirm the identification and earthing arrangement required by the project.
The technical table lists 6 times the overall diameter for 16 mm² and 8 times the overall diameter for 25 mm² and above. Confirm the applicable installation and pulling requirements for the cable supplied.
No. The listed flame-retardance, halogen-content and smoke-density references do not establish a circuit-integrity classification or fire survival duration. Obtain product-specific test evidence if the project requires continued operation during fire.
Provide BS 6724, 1900/3300V, three-core aluminium, the conductor size and starred or unstarred variant, SWA armour, total length and drum lengths. Include conductor construction, insulation specification, core identification, route conditions, sheath requirements, documents, packing and delivery details.
