BS 6622 XLPE MDPE 6.35/11 (12)kV Armoured Power Cable for Underground & Direct Burial SWA Copper Conductor, IEC 60502-2 Compliant

When it comes to supplying electricity safely and reliably to industrial and utility networks, the choice of power cable can make all the difference. Among the most trusted options is the BS 6622 XLPE MDPE 6.35/11 (12)kV armoured cable, a heavy-duty solution designed for underground and direct burial applications.

What is BS 6622 XLPE MDPE Armoured Cable?

BS 6622 is a British Standard for power cables, specifically covering XLPE-insulated, steel wire armoured (SWA), copper conductor cables. The 6.35/11 (12)kV rating makes it suitable for medium-voltage power distribution in industrial, commercial, and municipal networks. The MDPE (Medium Density Polyethylene) sheath provides excellent mechanical protection and resistance to environmental factors, making it ideal for direct burial or ducting installations.

This cable is IEC 60502-2 compliant, ensuring international compatibility and adherence to electrical safety standards, while also meeting the conductor standards of IEC/EN 60228.

Where Can BS 6622 Armoured Cable Be Used?

The applications of BS 6622 XLPE MDPE 6.35/11 (12)kV cables are versatile and include:

• Industrial power networks: Heavy-duty electrical supply for factories, processing plants, and mining operations.

• Municipal and utility networks: Underground electricity distribution in urban and suburban areas.

• Direct burial applications: Roadsides, pipelines, or areas where ducts are not available.

• Cable ducting: Within protective conduits in buildings, tunnels, or energy distribution networks.

Case Study: Use in Indonesia

In Indonesia, BS 6622 armoured cables have been widely adopted in industrial zones and power plants. One notable project involved a cement factory in West Java, where the cable was directly buried to supply medium-voltage power from the substation to heavy machinery. The SWA armour protected the cable from mechanical stress caused by soil movement and construction equipment, while the MDPE sheath ensured longevity despite high humidity and occasional flooding.

How Does BS 6622 Compare with Other Medium-Voltage Cables?

Selecting the right medium-voltage cable often involves comparing BS 6622 with alternatives like BS 5467 or BS 6724. Here's a comparative summary:

As seen, BS 6622 excels in medium-voltage underground applications with superior flexibility, temperature tolerance, and outer sheath protection.

What Are the Common FAQs About BS 6622 Armoured Cable?

Can BS 6622 Cable Be Buried Directly in Soil?

Yes. Its MDPE sheath and SWA armour protect it from moisture, chemical exposure, and mechanical impact, making it ideal for direct burial without ducts.

How Flexible Is the Cable During Installation?

With a minimum bending radius of 12× the overall diameter, BS 6622 is relatively flexible. For bends near joints or terminations, careful handling is required using a former to maintain bend radius at 10× overall diameter.

What Is the Maximum Current Capacity?

For a 3-core 185 mm² cable:

• In-ground: 430 A

• In duct: 370 A

• In air: 490 A

This makes it suitable for medium-voltage industrial applications.

How Does the Cable Handle Environmental Conditions?

• Temperature: 0°C to +90°C

• Moisture: Water-blocking tape prevents ingress

• Mechanical: SWA armour resists impact and crushing

• Chemical: MDPE sheath is resistant to oils, UV, and mild acids

How Should the Cable Be Installed for Maximum Lifespan?

1. Use proper trench depth and backfill material to minimize mechanical stress.

2. Avoid sharp bends exceeding the minimum bending radius.

3. Ensure earthing of metallic screen to prevent electrical hazards.

4. Inspect joints and terminations carefully, as these are points of potential failure.

Why Choose BS 6622 for Your Medium-Voltage Project?

BS 6622 XLPE MDPE armoured cable provides:

• High mechanical strength for underground and direct burial applications

• Reliable current carrying capacity for medium-voltage industrial networks

• Compliance with international standards (BS 6622, IEC 60502-2, IEC/EN 60228)

• Durable MDPE sheath resisting chemical, UV, and moisture damage

• Proven track record in Indonesia and globally for industrial installations

For engineers and contractors in Indonesia seeking a reliable, long-lasting, and safe medium-voltage cable, BS 6622 remains a top choice.

If you are planning medium-voltage power distribution for industrial or municipal projects, consult a certified supplier for BS 6622 XLPE MDPE 6.35/11 (12)kV armoured cables. Professional guidance on installation, sizing, and certification ensures optimal performance and compliance with local standards.