Punching 150mm Perforated Metal Cable Tray Galvanized Stainless Or Fibreglass Panels

Punching Perforated Cable Tray 150mm

BENDIN Punching Perforated Cable Tray 150mm width has become one of the most widely specified cable management solutions in modern building construction. Combining the structural integrity of galvanised steel with the functional benefits of a perforated base, this tray size occupies a practical middle ground—wide enough to accommodate multiple cable runs yet compact enough for flexible routing through constrained ceiling voids and service risers. Perforated cable trays enhance airflow and cool the cables installed on the tray, making them particularly suitable for office and commercial buildings, schools, hospitals, and shopping centres. Understanding its application functions, certification requirements, specification options, and installation considerations is essential for engineers, contractors, and facility managers alike.

1. Application and Functional Role in Building Construction
1.1 Core Functions
The primary function of a galvanised steel cable tray is to support, route, and protect electrical and telecommunication cables throughout a building. A perforated tray achieves this through a punched sheet-steel profile that provides continuous support while allowing air circulation around the cables.

The perforation serves four distinct purposes: it increases load capacity through embossed perforations, improves aeration for heat dissipation, enhances stability, and facilitates condensation drainage. In practical terms, these characteristics help dissipate heat generated by power cables, prevent overheating, and extend cable service life—an especially important consideration in installations carrying medium to heavy electrical loads.

1.2 Typical Building Applications
Galvanised steel cable trays are widely used in commercial, industrial, and residential construction, performing reliably in electrical, telecommunication, ventilation, and air conditioning installations. The 150mm width is particularly common in:

Commercial office buildings — routing power and data cables above suspended ceilings or within service corridors.

Hospitals and healthcare facilities — where dustproof and electromagnetic shielding characteristics are crucial for medical equipment operation.

Data centres and IT facilities — supporting structured cabling with separation between power and signal cables.

Industrial plants and warehouses — managing control, instrumentation, and power circuits in manufacturing environments.

Public infrastructure — including tunnels, car parks, airports, shopping centres, and railway systems.

1.3 Why the 150mm Width Is Frequently Specified
Standard cable tray widths include 50, 100, 150, 200, 300, 450, 600, and 900 mm. The 150mm tray offers a useful balance: it provides a usable cross-section sufficient for multiple power and control cables while remaining compatible with standard support hardware. Overhead hangers, for example, are suitable for supporting all cable tray ranges up to 150mm wide, enabling straightforward ceiling or soffit mounting. In many tender specifications, 150mm is listed as one of the standard widths for cable tray installations.

Global Certification & Standard Requirements and Common Specifications Table:

BENDIN Installation & Selection Considerations

1. Material and Surface Selection: evaluate the corrosive media on site and confirm pre-galvanized and hot dip galvanized steel with the correct surface treatment before ordering.
2. Avoid Galvanic Corrosion: never let dissimilar metals touch directly; use matching bolts and insulating gaskets between the tray and carbon steel brackets.
3. Load Calculation and Support Span: calculate the total cable weight to select the correct plate thickness and load class, and reduce the support span where heavy cables concentrate.
4. Thermal Expansion Control: install expansion joints on long straight runs to absorb thermal deformation caused by temperature changes.
5. Continuous Earthing and Bonding: keep continuous electrical bonding across all metal sections, mandatory in hazardous classified zones.
6. Separation of Power and Instrument Cables: use dividers to separate power cables from instrument cables and cut electromagnetic interference.
7. Cutting and Re-Protection on Site: cut with the correct tools and re-protect every cut edge and weld so the corrosion-resistant surface is restored.
8. Surface Inspection Before Installation: check the coating before installation, protect the surface during transport and repair any scratches that expose bare metal.

BENDIN Punching Perforated Cable Tray 150mm offers ventilated galvanized support with flexible cable drop-out for industrial and commercial use.