Feeder Pillar

Every time you see at road you will notice this huge electrical panel always stay forever at road. This panel is important to all street light in your country. Do you remember about underground cables that we learn in previous post? yes!! the post introduce a panel called 'Feeder Pillar' and we going to learn about it.

Feeder Pillar is a huge electrical panel specially for street light. This feeder pillar power up so many street light in highway roads, apartment with street light and so on. So what's inside feeder pillar.

This feeder pillar made of steel equip with water proof. Inside feeder pillar, there's fuse. This fuse has 63A amperage. Each fuse is connected to bus bar in three phase.The out going of fuse is connected to street light. before bus bar, there's circuit breaker or Moduled Case Circuit Breaker (MCCB) with 100A amperage. In some feeder pillar have Zero Current Transformer (ZCT) to provide additional protection to busbar. Additionally, voltmeter and ammeter is install in that feeder pillar. In modern technology, some feeder pillar install radio communication to verify this feeder pillar work correctly and efficient.

A  63A amperage fuse can connect more than 100 light in each phase in three phase. The incoming for fuse is connect to the bus bar. the outgoing for fuse is connected to street light. the street light fix with SWA or XLPE underground cable and burry underground to make it safe. All street light are connect in parallel so if on light goes off another still work. the street light produce 320-1000 watts that can damaged human eye so it's install high enough to make the road bright and easy to see.