Cables & Wires
How to Choose the Right Electrical Cables for Construction Projects in the UAE
Cables carry power to every part of a building, so the wrong choice can cause overheating, voltage drop or early failure. In the UAE, high ambient temperatures and demanding project schedules make careful selection even more important. This guide covers the main points contractors and buyers should review before placing a cable order.
Start with the load and the circuit
Every cable selection begins with the electrical load it must carry. The current, the circuit length and the type of equipment connected determine the minimum conductor size. Longer runs may need a larger cross-section to keep voltage drop within acceptable limits.
Always work from the project's electrical design and the consultant's specification. Where a size is unclear, confirm it with the project engineer rather than estimating.
Understand insulation and sheath types
Common options include PVC and XLPE insulated cables, as well as low-smoke, halogen-free types for areas where fire safety and smoke emission are a concern, such as public buildings, corridors and escape routes.
- PVC insulated cables – widely used for general building wiring
- XLPE insulated cables – often chosen for power distribution
- LSZH / LSOH cables – used where low smoke and fume emission is specified
- Flexible cables – for equipment and connections that move
Consider armouring and installation conditions
Cables laid underground, outdoors or in areas exposed to mechanical damage usually need armouring. Indoor cables in conduit or trunking may not. Think about where the cable will run, how it will be supported and whether it will be exposed to sunlight, moisture or chemicals.
Heat matters too. Cables grouped together or installed in hot spaces may need to be de-rated, which can increase the required size.
Check documentation before ordering
Ask for product datasheets and confirm the cable meets the standards named in your project specification. Check the cable markings on delivery against the order so that the correct type and size reach the site.
Conclusion
Choosing cables is a balance of electrical design, installation conditions and project requirements. If you have a cable schedule or BOQ, Skyline can help you source suitable cables and accessories for your project.
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