This document, based on national standards such as GB 50303 “Code for Acceptance of Construction Quality of Electrical Engineering in Building” and combined with engineering practice, systematically explains the full-process technical points for vertical cable trays – from material. This document, based on national standards such as GB 50303 “Code for Acceptance of Construction Quality of Electrical Engineering in Building” and combined with engineering practice, systematically explains the full-process technical points for vertical cable trays – from material. The purpose of this article is to define the sequence and methodology for the installation of electrical cable trays, cable trunking, cable raceways and boxes, junction and pull boxes. The method gives details of how the work will be carried out and what health and safety issues and controls that. Spring knot is used to connect cable tray or trunking to channel. Approved and correct fittings are used. This method statement covers the site installation of the cable tray & ladders and the requirements of checks to be carried out. Tool Required: On receipt of the cable tray, trunking, cable ladder and accessories at site necessary precautions shall. 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.
