Are socket cable trays and lighting cable trays shared

Socket (power) cables and lighting cables should generally not share the same cable tray; they require segregation to ensure safety, reduce interference, and comply with electrical standards.Segregation RequirementsSocket and lighting circuits are considered different electrical services, and combining them in the same tray can lead to electromagnetic interference (EMI), overheating, and difficulty in maintenance. Best practices recommend:Separate trays or compartments: If using multi-compartment trunking, place structured cabling or lighting in one compartment and power sockets in another, maintaining physical separation between circuits .Minimum separation distances: When sharing a route is unavoidable, maintain adequate spacing between power and lighting cables to prevent interference and ensure safety .Dedicated cable trays: Single-compartment trays should be dedicated to one type of service, either power or lighting, to avoid cross-contact and simplify troubleshooting .Practical ImplementationCable trays: Open or ladder-type trays are commonly used for both power and lighting, but each service should occupy its own tray or compartment .Trunking systems: In office or commercial environments, three-compartment trunking can be used, with lighting in the top compartment, sockets in the middle, and mains or other high-power cables in the bottom compartment .Suspended or ceiling routes: When trays are not available, cables can be suspended from ceilings with proper separation and support, ensuring that the weight and proximity do not compromise safety .Safety and ComplianceFollowing these segregation practices ensures:Reduced risk of electrical faultsCompliance with EMC and electrical codesEase of maintenance and future upgrades In summary, socket and lighting cables should not share the same tray unless specifically designed multi-compartment systems are used, and even then, proper separation and routing rules must be strictly followed .