@farhan_electrician: This single-phase distribution board diagram outlines essential electrical protection components: * Main Incomer (MCB): Isolates the incoming 220V AC power supply. * Surge Protective Device (SPD): Diverts high-voltage surges safely to the Earth connection. * Residual Current Circuit Breaker (RCCB): Protects against leakage currents and electric shocks. * Load MCBs: Distribute individual branch circuits safely to connected equipment.#farhanelectrician #WiringDiagram #ElectricalEngineering #dontunderreviewmyvideo #tips