Feeder pillars are the breaker panels which is the very first set of switching/protection device at the output/secondary side of the transformer and panel board is a set of switching/protection devices used for distribution of power supply.
Feeder pillar is an effective electrical enclosure to provide electrical services for low voltage electrical distribution applications. It is designed as compact and robust for vandalism protection. The metal enclosure is made of sheet steel of minimum 1.6mm thickness, mounted on a steel base frame of minimum 3mm thickness. Enclosure is suitable for outdoor application.
The busbar shall be housed in a separate compartment. The busbar shall be isolated with 3 mm thick FRC or acrylic sheet to avoid any accidental contact. The busbar shall be arranged such that minimum clearances between the busbar are maintained as per below.