Vertical cable trays are directly fixed with bolts

Fixing method: use M12 or larger expansion bolts or embedded parts; anchoring into lightweight walling is prohibited. The contact surface between support and tray shall have paint removed to ensure electrical continuity. As a key support system for cable laying in building electrical engineering, the installation quality of vertical cable trays directly affects the safe operation of power, communication, and other circuits. This document, based on national standards such as GB 50303 “Code for Acceptance of. en completely installed, without damage either to conductors or structural system use maintain spacing or to keep cables in place when the tray is ect the minimum bend ra-dius for cables ...