Ventilated Perforated Cable Support Tray | Custom Dimension Powder Coated Cable Tray for Electrical & Telecom Cabling Product Overview Electrical and telecommunication projects demand dependable cable bearing solutions to sustain long-term safe operation. Our perforated steel cable tray adopts a base panel with elongated ventilation holes, solving the heat buildup problem of loaded power cables efficiently. This ventilated tray offers stable support for multi-type cables,