BURY CABLE BS 6724 single-core LSZH armoured cable is intended for fixed 600/1000V power distribution in buildings, infrastructure and industrial installations. Typical project settings include commercial premises, hospitals, data centres and transport facilities where low smoke and halogen-free materials form part of the cable specification.
The single-core parameter schedule on this page covers circular stranded conductors from 50 to 1000 mm² and specifies aluminium wire armour (AWA). Select the required size for the load, route and installation arrangement, then confirm the conductor material and insulation grade in the supply specification.
The construction table contains broader cable-family options, and the gallery includes family reference illustrations. Use the single-core parameter schedule for the listed dimensions and AWA construction. Confirm the exact supplied construction before ordering.
600/1000V rating for fixed low voltage power circuits.
Single-core circular stranded construction, with strand counts and wire diameters listed by size.
Aluminium wire armour specified in the single-core parameter table.
LSZH outer sheath for applications requiring low smoke and halogen-free materials.
Listed conductor sizes from 1 × 50 mm² to 1 × 1000 mm², with nominal layer dimensions and approximate cable weights.
Stated temperature rating of 0°C to +90°C; check installation conditions and termination limits for the selected circuit.
| 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 | 600/1000V |
| 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 | Strand Type | Nominal Insulation Thickness | Nominal BeddingThickness | Nominal Alum Wire Armor dia. | Nominal Sheath Thickness | Approx. Overall Diameter | Aprrox. Weight |
|---|---|---|---|---|---|---|---|
| mm² | No./mm | mm | mm | mm | mm | mm | kg/km |
| 1×50 | 19/1.78 | 1.0 | 0.8 | 0.9 | 1.5 | 17.5 | 800 |
| 1×70 | 19/2.14 | 1.1 | 0.8 | 1.25 | 1.5 | 20.2 | 990 |
| 1×95 | 19/2.52 | 1.1 | 0.8 | 1.25 | 1.6 | 22.3 | 1280 |
| 1×120 | 37/2.03 | 1.2 | 0.8 | 1.25 | 1.6 | 24.2 | 1550 |
| 1×150 | 37/2.25 | 1.4 | 1 | 1.6 | 1.7 | 27.4 | 1900 |
| 1×185 | 37/2.52 | 1.6 | 1 | 1.6 | 1.8 | 30.0 | 2320 |
| 1×240 | 61/2.25 | 1.7 | 1 | 1.6 | 1.8 | 32.8 | 2930 |
| 1×300 | 61/2.52 | 1.8 | 1 | 1.6 | 1.9 | 35.6 | 3580 |
| 1×400 | 61/2.85 | 2.0 | 1.2 | 2.0 | 2.0 | 40.5 | 4600 |
| 1×500 | 61/3.20 | 2.2 | 1.2 | 2.0 | 2.1 | 44.2 | 5680 |
| 1×630 | 127/2.52 | 2.4 | 1.2 | 2.0 | 2.2 | 48.8 | 7160 |
| 1×800 | 127/2.85 | 2.6 | 1.4 | 2.5 | 2.4 | 55.4 | 9315 |
| 1×1000 | 127/3.20 | 2.8 | 1.4 | 2.5 | 2.5 | 60.6 | 11490 |
Specify the conductor material, conductor size, number of single-core runs, insulation grade, total length and drum lengths. Use the exact table row for dimensional and weight estimates.
Check current capacity, voltage drop, short-circuit duty, ambient temperature and grouping for the installation. Dimensions alone do not establish an allowable current.
Confirm phase arrangement, cable spacing, cleats, armour bonding, glands and entry plates for the single-core circuit. Keep the selected AWA construction consistent across the cable and accessory specification.
For the 50-1000 mm² sizes listed here, the technical table gives a minimum bending radius of 8 times the overall diameter. Also confirm the installation bend and pulling requirements.
Confirm sheath suitability and any required protection for outdoor, duct, buried, wet or chemically exposed routes. Do not infer UV, oil or water resistance from the LSZH designation alone.
Confirm any required fire performance against the applicable product evidence. Flame retardance and LSZH properties do not establish a circuit-integrity rating or fire survival time.
BS 6724 Four Core LSZH Armoured Cable, 600/1000V
A multicore option with a separate conductor and armour arrangement; check its own specification.
BS 7211 XLPE LSZH Building Cable with CPC, 300/500V
An unarmoured building-wiring option for a different voltage and circuit duty.
BS 7846 Mica XLPE SWA LSZH Fire Resistant Cable, 600/1000V
A separate fire resistant construction for projects requiring verified circuit-integrity performance.
The parameter table lists 13 single-core sizes from 50 to 1000 mm². Each row includes strand construction, layer dimensions, overall diameter and approximate weight.
The single-core parameter table specifies aluminium wire armour. Multicore references elsewhere in the family construction data should not be used to substitute steel wire armour for the selected single-core design.
No. The images are illustrations and include other family constructions. Confirm the supplied conductor material and insulation grade in the quotation and approved cable schedule.
The listed technical data covers flame retardance, halogen content and smoke density. It does not establish a circuit-integrity classification or fire survival duration. Specify a separately verified fire resistant construction where the circuit requires one.
Send the voltage, conductor material, conductor size, number of runs, lengths, installation method, operating environment and project standard. Include any required testing, sheath options, drum lengths and delivery details.
