Specifications of Galvanized Cable Tray Partitions

Galvanized cable tray partitions should comply with NEMA VE-1 or IEC 61537 standards, with hot-dip galvanization providing a minimum zinc coating of 275 g/m² (~39 µm) for effective corrosion resistance. Applicable StandardsNEMA VE-1: Metallic cable trays, including partitions, must be manufactured according to NEMA VE-1 standards, which define construction, fittings, connectors, and accessories for complete cable tray systems, ensuring mechanical strength and electrical continuity.

IE

C 61537: Internationally, IEC 61537 provides guidelines for metallic cable tray systems, covering mechanical strength, corrosion resistance, and electrical continuity. Compliance ensures safety, durability, and compatibility across installations. Galvanization RequirementsHot-Dip Galvanized Trays: Preferred for harsh environments such as coastal areas, outdoor installations, or heavy industrial settings.

The steel is submerged in molten zinc, forming a thick zinc-iron alloy layer with excellent adhesion and corrosion resistance. The recommended coating mass is ≥275 g/m², corresponding to a zinc thickness of approximately 39 µm, which ensures protection during transit and long-term exposure.

Electro-

Galvanized Trays: Zinc is deposited via electrolysis, producing a thin, uniform layer (≥12 µm). This method offers weaker corrosion resistance and is generally unsuitable for marine or humid environments.

Partition and Barrier Specifications

Cable tray partitions, also referred to as barriers, are used to separate cables of different voltage ratings or types. Key requirements include: Material: Same as the cable tray (galvanized steel)Construction: Solid, fixed, and continuousElectrical Considerations: Must maintain grounding and bonding continuityInstallation: Supplied by the manufacturer along with straight sections, fittings, and connectors Summary RecommendationsUse hot-dip galvanized steel for partitions in corrosive or outdoor environments. Ensure zinc coating ≥275 g/m² for reliable corrosion protection.

Follow NEM

A VE-1 for U. S. projects or IEC 61537 for international compliance. Provide solid, continuous partitions for voltage separation and safety.

These standards and specifications ensure that galvanized cable tray partitions are durable, safe, and compliant with industry best practices.