In this video, we will cover the basic types of cable trays, what is permitted and prohibited for use, and the requirements for installation as outlined in sections 392. Let's dive right into our discussion!The Philippine Electrical Code (PEC) is a set of standards and regulations that govern the safe and proper installation, operation, and maintenance of electrical systems in the Philippines. It provides guidelines for electrical design, wiring, equipment selection, grounding, protection, and other. Today, we will be discussing Article 392 - Cable Tray Systems. The National Building Code of the Philippines REPUBLIC ACT NO. Service drop shall have sufficient.