An enclosed cable-management system—often called cable trunking, electrical ducting or simply trunking—is essential in building projects and residential or industrial electrical installations. Its practical design keeps wiring protected, organised and visually tidy.
These systems are fabricated from durable materials such as pre-galvanized steel, powder-coated steel, hot-dip galvanized steel, stainless steel and aluminium alloy, allowing the specification to suit different environments and technical requirements.
Alternative Names for Cable Trunking
Electrical ducting: A widely used term that emphasises the system’s role in enclosing and protecting electrical wiring.
Cable trunking: The standard technical term for an enclosed, typically rectangular or square system that routes and protects cables.
Trunking: A shortened form of “cable trunking”, widely used in specifications and technical communication.
Electrical cable trunking, also known as electrical ducting.
Why Are There Different Names?
Regional differences: Terminology varies by market, industry and region.
Manufacturer differences: Manufacturers may use product-specific names or brand terminology.
What Should You Call Cable Trunking?
These terms describe the same type of enclosed cable-management system. Use the wording that is standard for your market or project documentation.
In brief:
Whatever term you use, the key is to define the required material, dimensions, cover type and project conditions clearly. This helps suppliers and technical teams recommend the right system.
2. Why Use Electrical Cable Trunking?
Improved electrical safety: Encloses and shields cables, helping reduce the risk of accidental contact, physical damage and short circuits.
Cleaner installation: Conceals cable runs for a neat, professional finish.
Easier installation and maintenance: Allows cables to be added, inspected or replaced with less disruption.
Long service life: Material options can be selected to withstand corrosion, moisture and demanding site conditions.
3. Common Types of Electrical Cable Trunking
3.1. Powder-Coated Cable Trunking
Key benefits: Good corrosion resistance, reliable load capacity, a broad colour range and cost-effective pricing.
Typical applications: Indoor installations in residential buildings, factories and commercial facilities.
Comparison: Offers durability and corrosion resistance comparable to pre-galvanized steel, with greater design flexibility at a higher cost.
Powder-coated solid-bottom cable tray images:
Powder-coated solid-bottom cable tray in real-world applications
Common powder-coating colours:
Powder-coated solid-bottom cable tray in RAL colour 7032
Powder-coated solid-bottom cable tray in RAL colour 7035
Powder-coated solid-bottom cable tray in RAL colour 9001
Powder-coated solid-bottom cable tray in RAL colour 6018
Powder-coated solid-bottom cable tray in RAL colour 5005
Powder-coated solid-bottom cable tray in RAL colour 3020
Powder-coated solid-bottom cable tray in RAL colour 2004
Powder-coated solid-bottom cable tray in RAL colour 7000
Powder-coated solid-bottom cable tray in RAL colour 9017
Learn more about ALUMINIUM-ALLOY CABLE TRUNKING: a lightweight, non-magnetic solution for telecommunications and electronic installations.
3.6 ZAM-Coated Steel Cable Trunking
Advantages: Far greater corrosion resistance than conventional pre-galvanized steel, thanks to its zinc-aluminium-magnesium alloy coating. This material also has a “self-healing” – mechanism that forms a protective film at cut edges and scratches during installation. It offers long service life, a bright smooth finish and requires no protective topcoat.
Typical applications: Solar projects, data centres, outdoor electrical systems and industrial facilities in humid or coastal locations.
Material assessment: ZAM-coated steel can be a cost-effective long-term option for MEP projects. In suitable environments, it may provide an alternative to hot-dip galvanized trunking while reducing fabrication time and cost.
9. Frequently Asked Questions (FAQ) About Cable Trunking
What is electrical cable trunking and what is its role in a project?
A solid-bottom cable tray system is used to manage, protect and route electrical and telecommunications cables. It keeps electrical systems neat, makes maintenance and replacement easier, and improves fire safety compared with running cables directly.
Which common types of cable trunking does The Sun manufacture?
We manufacture powder-coated, pre-galvanized, hot-dip galvanized, stainless-steel and aluminium cable trunking. The best option depends on the installation environment, corrosion risk and project requirements.
How do cable trunking and cable tray differ?
Cable trunking is enclosed, normally with a removable cover, to provide greater protection from dust, impact and accidental contact. Cable trays are generally open or perforated, allowing airflow, drainage and easier access to cables.
What standard cable trunking sizes are available from The Sun?
Common sizes include W100 × H50 mm, W200 × H100 mm and W300 × H100 mm, with a standard length of 2,500 mm. As a manufacturer, we can also produce project-specific sizes.
What material thickness is safe for an electrical cable system?
Solid-bottom cable tray thickness typically ranges from 0.8 mm to 2.5 mm. For smaller systems (W100–W200), 1.0–1.2 mm is suitable. For larger heavy-duty systems, use 1.5–2.0 mm to prevent sagging.
Why choose hot-dip galvanized cable trunking for coastal projects?
Hot-dip galvanized cable trunking receives a thick zinc coating by immersion in molten zinc at 450°C. This process provides durable protection against corrosion in demanding locations, including coastal and industrial environments.
How long do production and delivery take at The Sun?
Standard sizes may be available from stock or manufactured within 3–5 days. For larger project orders, production and delivery are planned to align with the construction schedule.
What is the fastest way to get a factory quotation for cable trunking?
You can email your bill of quantities, call our hotline at 0903 988 018 or message us via Zalo. We aim to respond within 30 minutes with a detailed quotation and available CO/CQ documentation.
