Key features of a main switchboard typically include:
Main Switch or Circuit Breaker
This is the primary disconnect switch or circuit breaker that allows the entire electrical supply to be shut off in case of emergencies or maintenance.
Busbars
Busbars are thick bars or conductors that carry the electrical current from the main switch to various circuit breakers or distribution points.
Circuit Breakers
These are devices that protect individual circuits from overloads or faults. They can be controlled manually or automatically and are used to isolate specific areas of the electrical system.
Distribution Panels
The main switchboard may feed power into smaller distribution panels or sub-switchboards, which in turn distribute power to different parts of the building.
Meters and Monitoring Equipment
Some main switchboards include meters and monitoring equipment to measure electrical consumption and monitor the health of the electrical system.
Safety Features
Main switchboards are designed with safety features such as lockout/tagout mechanisms and clear labelling to ensure safe operation and maintenance.
Emergency Shutdowns
In industrial or commercial settings, main switchboards may have emergency shutdown switches or buttons for rapid power cutoff in emergency situations.
Main switchboards are commonly found in large buildings, industrial facilities, and commercial establishments where there is a substantial electrical load. They play a critical role in controlling and distributing electrical power while ensuring the safety of the building’s occupants and the electrical system itself.